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2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 | package Torello.Java.JSON; import Torello.Java.StringParse; import Torello.Java.UnreachableError; import Torello.Java.Additional.Ret3; import Torello.Java.Additional.EffectivelyFinal; import Torello.Java.Additional.Counter; import Torello.Java.Function.ToByteFunction; import Torello.Java.Function.ToFloatFunction; import Torello.Java.Function.ToShortFunction; import java.util.*; import java.util.stream.*; import java.util.function.*; import java.math.*; import javax.json.*; import java.lang.reflect.Array; // This is "The Great Sillyness" - it is only used because of the Java-Quirk about constructor's // not referencing "this" before a call to "super(...)" or "this(...)". The only way around it I // have ever found is to use a static-temporary variable, and set its value inside of a static // helper-method. // // This is, essentially, just fine. However, if the user ever ran this in a multi-threaded program // it might "get messed up". TO PREVENT THAT: You have to have a few lines that are synchronized. // Using the "ReentrantLock" is easier for me to think about than using "synchronized" // // NOTE: There is NO MULTI-THREADED CALLS IN THIS CLASS WHATSOEVER. This is only used as a // "Constructor-Helper" // // THIS CLASS IS **VERY** THREAD-SAFE import java.util.concurrent.locks.ReentrantLock; import static javax.json.JsonValue.ValueType.*; import static Torello.Java.JSON.JFlag.*; /** * Utilities for parsing Json Array's into Java Array's. * * <EMBED CLASS='external-html' DATA-FILE-ID=GLASS_FISH_NOTE> * <EMBED CLASS='external-html' DATA-FILE-ID=READ_ARR_JSON> * * @see Json * @see Json * @see JsonArray */ @Torello.JavaDoc.StaticFunctional @Torello.JavaDoc.JDHeaderBackgroundImg(EmbedTagFileID="JSON_JDHBI") public class ReadArrJSON { private ReadArrJSON() { } // ******************************************************************************************** // ******************************************************************************************** // TEST-PREDICATE'S // ******************************************************************************************** // ******************************************************************************************** private static final BigInteger LONG_MAX = BigInteger.valueOf(Long.MAX_VALUE); private static final BigInteger LONG_MIN = BigInteger.valueOf(Long.MIN_VALUE); private static final BigInteger SHORT_MAX = BigInteger.valueOf(Short.MAX_VALUE); private static final BigInteger SHORT_MIN = BigInteger.valueOf(Short.MIN_VALUE); private static final BigInteger BYTE_MAX = BigInteger.valueOf(Byte.MAX_VALUE); private static final BigInteger BYTE_MIN = BigInteger.valueOf(Byte.MIN_VALUE); /** * These are eliminated / removed from any call to a method which returns either an array * of Java Primitives or a Java Primitive Stream * * @see #intArrayToStream(JsonArray, int, int, ToIntFunction) * @see #longArrayToStream(JsonArray, long, int, ToLongFunction) * @see #doubleArrayToStream(JsonArray, double, int, ToDoubleFunction) * @see #byteArray(JsonArray, byte, int, ToByteFunction) * @see #floatArray(JsonArray, float, int, ToFloatFunction) * @see #shortArray(JsonArray, short, int, ToShortFunction) * @see #booleanArray(JsonArray, boolean, int, Predicate) */ public static final int NOT_ALLOWED_RET_NULL_MASKS = ~(RETURN_NULL_ON_ANY_ALL | RETURN_NULL_ON_AEX | RETURN_NULL_ON_NULL | RETURN_NULL_ON_SPEX | RETURN_NULL_ON_STR | RETURN_NULL_ON_0LEN_STR | RETURN_NULL_ON_WRONG_JSONTYPE | INSERT_NULL_ON_NON_SUBARRAY_TYPE); // For "Integer", the javax.json will always return an instance of "Integer" if the JsonNumber // is, indeed, a valid Integer. This doesn't work for Long - even though java.json will return // an instance of boxed-type "Long" when the number is a Long because if the user has requested // a LongStream, and an Integer was parsed (because the number was between 0 and MAX_INT), then // just checking the Class of the returned value will fail. // // Converting to a returned "Integer" or "Long" to a "BigInteger" is extremely cheap, and fast, // since the class BigInteger will just save the "Integer" internally. private static boolean shortTypePred(JsonNumber jn) { if (! jn.isIntegral()) return false; BigInteger bi = jn.bigIntegerValue(); int signum = bi.signum(); return ((signum > 0) && (bi.compareTo(SHORT_MAX) <= 0)) || ((signum < 0) && (bi.compareTo(SHORT_MIN) >= 0)) || (signum == 0); } private static boolean byteTypePred(JsonNumber jn) { if (! jn.isIntegral()) return false; BigInteger bi = jn.bigIntegerValue(); int signum = bi.signum(); return ((signum > 0) && (bi.compareTo(BYTE_MAX) <= 0)) || ((signum < 0) && (bi.compareTo(BYTE_MIN) >= 0)) || (signum == 0); } private static boolean doubleTypePred(JsonNumber jn) { return true; /* for now! Only bizzare & egregious cases won't fit into a double... */ } private static boolean floatTypePred(JsonNumber jn) { return true; } private static boolean longTypePred(JsonNumber jn) { if (! jn.isIntegral()) return false; BigInteger bi = jn.bigIntegerValue(); int signum = bi.signum(); return ((signum > 0) && (bi.compareTo(LONG_MAX) <= 0)) || ((signum < 0) && (bi.compareTo(LONG_MIN) >= 0)) || (signum == 0); } // ******************************************************************************************** // ******************************************************************************************** // HELPER-RECORD // ******************************************************************************************** // ******************************************************************************************** // NOTE: It is **A LOT** Smarter to check for the exception instead of using the try-catch // since I have read that generating an exception is one of the most costly-expensive // things the JRE does. It isn't the Exception-Constructor that costs a lot - it is the // creating of the **STACK-TRACE** that costs well over 100 to 1,000 times the number of // of CPU-Cycles that the cost of a simple constructor. This is an "Only if abolutely" // necessary things. private static <T extends Number> ArithmeticException getAEX (JsonNumber jn, Function<BigDecimal, ?> converter) { try { converter.apply(jn.bigDecimalValue()); } catch (ArithmeticException aex) { return aex; } throw new UnreachableError(); } private static Exception getSPEX(String s, Function<String, ?> converter) { try { converter.apply(s); } catch (Exception e) { return e; } throw new UnreachableError(); } // ******************************************************************************************** // ******************************************************************************************** // RECORD Configuration-Class // ******************************************************************************************** // ******************************************************************************************** private static class RECORD<T, U> { // Assigned after construction, cannot be final private JsonArray ja; private final T defaultValue; private final boolean RJA_AEX, RTS_WT, IN_NSAT, S_NSAT; private final Runnable handlerNull, handlerAEX, handlerSPEX, handlerZLS, handlerWrongType; private final ObjIntConsumer<JsonValue> handlerJsonString; private final Class<T> CLASS; private final Predicate<JsonNumber> jsonNumWillFit; private final Predicate<String> validStrTester; private final Function<String, T> defaultParser; private final Function<Number, T> numberConverter; private final Function<BigDecimal, T> numberConverterExThrow; private final Function<String, T> userParser; // NOTE: This class "RECORD" can handle the standard "Stream<T>", but it can also handle // the three primitive-Stream's: IntStream, LongStream and DoubleStream. // // Therefore these are kept as separate function-pointers. If it weren't for those three // primitive-streams, this would be completely unnecessary. YES, this class is a little // hard to read. private final Runnable c; // Stream.builder() private final Consumer<T> a; // Stream.Builder.accept(T) private final Supplier<U> b; // Stream.Builder.build() // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // This is only used by the methods in the nested-class "DimN" // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // // This is not final, because it is set after the constructor. // // Since the user is incapable of accessing any of this, and since great care has been // taken to rigorously test all of this stuff, it is basically unimportant. private Function<JsonArray, Object> array1DGenerator = null; // **************************************************************************************** // **************************************************************************************** // PRIMARY RECORD Constructor // **************************************************************************************** // **************************************************************************************** private RECORD( T defaultValue, int FLAGS, Class<T> CLASS, Predicate<JsonNumber> jsonNumWillFit, Predicate<String> validStrTester, Function<String, T> defaultParser, Function<Number, T> numberConverter, Function<BigDecimal, T> numberConverterExThrow, Function<String, T> userParser, boolean NULLS, Runnable streamConstructor, Consumer<T> streamAcceptor, Supplier<U> streamBuilder ) { this.defaultValue = defaultValue; // User-Provided Default-Value this.CLASS = CLASS; // Class of the Stream.Builder "accept" Parameter this.jsonNumWillFit = jsonNumWillFit; // Checks if JsonNumber will fit properly this.validStrTester = validStrTester; // Used for Verifying a JsonString this.defaultParser = defaultParser; // Default JsonString Parser to Number this.numberConverter = numberConverter; // interface java.lang.Number method this.numberConverterExThrow = numberConverterExThrow; this.userParser = userParser; // Optional User Parser this.c = streamConstructor; // Stream.builder() this.a = streamAcceptor; // Stream.Builder.accept() this.b = streamBuilder; // Stream.Builder.build() this.RJA_AEX = (FLAGS & RETURN_JAPPROX_ON_AEX) > 0; this.RTS_WT = (FLAGS & RETURN_TOSTRING_ON_WRONGTYPE) > 0; this.IN_NSAT = (FLAGS & INSERT_NULL_ON_NON_SUBARRAY_TYPE) > 0; this.S_NSAT = (FLAGS & SKIP_ON_NON_SUBARRAY_TYPE) > 0; boolean RN_AA = NULLS && ((FLAGS & RETURN_NULL_ON_ANY_ALL) > 0); boolean RD_AA = (FLAGS & RETURN_DEFVAL_ON_ANY_ALL) > 0; boolean S_AA = (FLAGS & SKIP_ON_ANY_ALL) > 0; // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // Null Handler (JsonNull was in the JsonArray) // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // // NOTE: AN(), AD() and NOOP() are just one-line private methods that: // a.accept(null), a.accept(defaultValue), and {} ==> do nothing (SKIP) if (NULLS && ((FLAGS & RETURN_NULL_ON_NULL) > 0)) handlerNull = this::AN; else if ((FLAGS & RETURN_DEFVAL_ON_NULL) > 0) handlerNull = this::AD; else if ((FLAGS & SKIP_ON_NULL) > 0) handlerNull = this::NOOP; else if (NULLS && RN_AA) handlerNull = this::AN; else if (RD_AA) handlerNull = this::AD; else if (S_AA) handlerNull = this::NOOP; else if (NULLS) handlerNull = this::AN; else handlerNull = null; // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // AEX Handler (ArithmeticException) // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // // NOTE: AN(), AD() and NOOP() are just one-line private methods that: // a.accept(null), a.accept(defaultValue), and {} ==> do nothing (SKIP) if (NULLS && ((FLAGS & RETURN_NULL_ON_AEX) > 0)) handlerAEX = this::AN; else if ((FLAGS & RETURN_DEFVAL_ON_AEX) > 0) handlerAEX = this::AD; else if ((FLAGS & SKIP_ON_AEX) > 0) handlerAEX = this::NOOP; else if (NULLS && RN_AA) handlerAEX = this::AN; else if (RD_AA) handlerAEX = this::AD; else if (S_AA) handlerAEX = this::NOOP; else handlerAEX = null; // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // SPEX Handler (Exception while parsing a String into the Java-Type) // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // // NOTE: AN(), AD() and NOOP() are just one-line private methods that: // a.accept(null), a.accept(defaultValue), and {} ==> do nothing (SKIP) if (NULLS && ((FLAGS & RETURN_NULL_ON_SPEX) > 0)) handlerSPEX = this::AN; else if ((FLAGS & RETURN_DEFVAL_ON_SPEX) > 0) handlerSPEX = this::AD; else if ((FLAGS & SKIP_ON_SPEX) > 0) handlerSPEX = this::NOOP; else if (NULLS && RN_AA) handlerSPEX = this::AN; else if (RD_AA) handlerSPEX = this::AD; else if (S_AA) handlerSPEX = this::NOOP; else handlerSPEX = null; // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // ZLS Handler (A Zero-Length String was in the JsonArray) // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // // NOTE: AN(), AD() and NOOP() are just one-line private methods that: // a.accept(null), a.accept(defaultValue), and {} ==> do nothing (SKIP) if (NULLS && ((FLAGS & RETURN_NULL_ON_0LEN_STR) > 0)) handlerZLS = this::AN; else if ((FLAGS & RETURN_DEFVAL_ON_0LEN_STR) > 0) handlerZLS = this::AD; else if ((FLAGS & SKIP_ON_0LEN_STR) > 0) handlerZLS = this::NOOP; else if (NULLS && RN_AA) handlerZLS = this::AN; else if (RD_AA) handlerZLS = this::AD; else if (S_AA) handlerZLS = this::NOOP; else handlerZLS = null; // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // Wrong-Type Handler (A JsonObject or a nested-JsonArray was in an array position) // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // // NOTE: AN(), AD() and NOOP() are just one-line private methods that: // a.accept(null), a.accept(defaultValue), and {} ==> do nothing (SKIP) // // ALSO: RN_WT & RD_WT are the abbreviated-flags for "ON_WRONG_JSONTYPE" if (NULLS && ((FLAGS & RN_WT) > 0)) handlerWrongType = this::AN; else if ((FLAGS & RD_WT) > 0) handlerWrongType = this::AD; else if ((FLAGS & SKIP_ON_WRONG_JSONTYPE) > 0) handlerWrongType = this::NOOP; else if (NULLS && RN_AA) handlerWrongType = this::AN; else if (RD_AA) handlerWrongType = this::AD; else if (S_AA) handlerWrongType = this::NOOP; else handlerWrongType = null; // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // JsonString Handler (This was *ALSO* moved here to get rid of more of the if's) // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // // NOTE: AN(JsonValue, int), AD(JsonValue, int) and NOOP(JsonValue, int) are just // one-line private methods that: // a.accept(null), a.accept(defaultValue), and {} ==> do nothing (SKIP) if (userParser != null) handlerJsonString = this::useUserParser; else if ((FLAGS & RP_S) > 0) handlerJsonString = this::parseString; else if (NULLS && ((FLAGS & RETURN_NULL_ON_STR) > 0)) handlerJsonString = this::AN; else if ((FLAGS & RETURN_DEFVAL_ON_STR) > 0) handlerJsonString = this::AD; else if ((FLAGS & SKIP_ON_STR) > 0) handlerJsonString = this::NOOP; else if (NULLS && RN_AA) handlerJsonString = this::AN; else if (RD_AA) handlerJsonString = this::AD; else if (S_AA) handlerJsonString = this::NOOP; else handlerJsonString = (JsonValue jv, int i) -> { throw new JsonTypeArrException (this.ja, i, NUMBER, jv, this.CLASS); }; } // **************************************************************************************** // **************************************************************************************** // Boxed-Primitive Stream RECORD Contructor // **************************************************************************************** // **************************************************************************************** @SuppressWarnings({"unchecked"}) private RECORD( T defaultValue, int FLAGS, Class<T> CLASS, Predicate<JsonNumber> jsonNumWillFit, Predicate<String> validStrTester, Function<String, T> defaultParser, Function<Number, T> numberConverter, Function<BigDecimal, T> numberConverterExThrow, Function<String, T> userParser ) { this( defaultValue, FLAGS, CLASS, jsonNumWillFit, validStrTester, defaultParser, numberConverter, numberConverterExThrow, userParser, true, constructorHelper(new EffectivelyFinal<>(null)),//, CLASS, Stream.class), (Consumer<T>) constructorHelper.b, // Un-Checked Cast (Supplier<U>) constructorHelper.c // Un-Checked Cast ); // Essentially, the lock is only used for about three instructions that are inside the // method "constructorHelper". It, sort-of, "borrows" a private static-field for just // a moment, so that the values can be passed to the call to "this(...)", which is // just "kind-of" faking out the compiler so I can do some processing before calling // "this(...)" as above // // Now that the loan-out is over, unlock the lock, and it can be used in another call lock.unlock(); // THIS CLASS *IS* THREAD SAFE, // THIS Nested-Class "RECORD" IS NOT THREAD-SAFE - EXCEPT THE USER IS NOT ALLOWED ACCESS, // AND MAY NOT OBTAIN AN INSTNANCE OF "RECORD", so it all works just fine, even in a // multi-threaded program! /* // OLD CODE - DON'T ERASE THIS, EVEN BEFORE THE LOCK, THIS WAS KIND OF UGLY final EffectivelyFinal<Stream.Builder<T>> EFSB = new EffectivelyFinal<>(null); this.c = () -> EFSB.f = Stream.builder(); this.a = (T t) -> EFSB.f.accept(t); this.b = () -> (U) EFSB.f.build(); */ } // These are the "Contructor Helpers" that are mentioned at the top of this class (in the // "import-statement" section). These are just here to help by-pass the Java Requirement // that calls to "this(...)" and "super(...)" occur on the first line. // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // This is NOT TO BE UNDERSTOOD BY MORTAL-MEN, SO DON'T ASK // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // // The **MAIN-POINT** of all this non-sense is that at **RUNTIME** (as you should know by // by now) all Generic-Type Information has been erased. An instance of class Object is // no different than an instance of class String, Integer or anything else. It is just a // pointer to a class. // // This whole thing is just "Faking Out The Compiler" // // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // Mostly, I am very used to having all the fields in Class "RECORD" being declared FINAL // *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** // // It is very soothing to know that the constructor is "setting everything up", and the // Json-Processor stuff isn't going to do anything with the configurations (because they // are all declared FINAL). private static final ReentrantLock lock = new ReentrantLock(); @SuppressWarnings("rawtypes") private static Ret3 constructorHelper; @SuppressWarnings({"rawtypes", "unchecked"}) private static Runnable constructorHelper(final EffectivelyFinal<Stream.Builder> EFSB) { lock.lock(); // If you don't understand this line, oh well... // // This was "built" or "developed" in a step-wise fasion. // There is a WHOLE-BUNCH of testing code, and it all worked. All this 'type-magic' is // doing is tricking the java compiler, so I can have my way. // // Every time I play with the types, I go back and run a GIANT-STACK of TEST // PROCEDURES. If they all work, I know this works. This is **NOT REALLY** a good // software-writing practice, **HOWEVER** Java-Generics are sometimes a real problem. // // The purpose of having TYPES in a programming language is to help catch programming // errors early-on at compile-time. Java does this pretty well, but when things get // advanced (it is always with Function-Pointers - a.k.a. "Functional-Interfaces" and // Lambda-Expressions)... when things get "ADVANCED" it is sometimes a little // ridiculours. // // When they say that Java-Script is a "TYPE-LESS" language at that it is easier, well, // Java-Script has tons of Run-Time errors that can be impossible to debug/find! // // There is no real-way that I can think of to "improve" generics, because all the are // in the first-place is a little "Help Finding the Errors" at Compile-Time thing... constructorHelper = new Ret3<Runnable, Consumer, Supplier>( (Runnable) (() -> EFSB.f = Stream.builder()), (Consumer) ((Object o) -> EFSB.f.accept(o)), (Supplier) (() -> /*(B)*/ EFSB.f.build()) ); return (Runnable) constructorHelper.a; } // **************************************************************************************** // **************************************************************************************** // HELPER'S FOR THE HANDLERS // **************************************************************************************** // **************************************************************************************** private void AN() { a.accept(null); } private void AD() { a.accept(defaultValue); } private void NOOP() { } private void AN(JsonValue jv, int i) { a.accept(null); } private void AD(JsonValue jv, int i) { a.accept(defaultValue); } private void NOOP(JsonValue jv, int i) { } private void useUserParser(JsonValue jv, int i) { try { this.a.accept (this.userParser.apply(((JsonString) jv).getString())); } catch (Exception e) { if (this.handlerSPEX != null) this.handlerSPEX.run(); else throw new JsonStrParseArrException(e, this.ja, i, jv, this.CLASS); } }; private void parseString(JsonValue jv, int i) { String s = ((JsonString) jv).getString(); if (s.length() == 0) { if (this.handlerZLS != null) this.handlerZLS.run(); else throw new JsonStrParseArrException( new IllegalArgumentException("Zero Length String"), this.ja, i, jv, this.CLASS ); } // StringParse.isInteger(s), isLong(String) **AND** s -> true (Double) else if (this.validStrTester.test(s)) // Integer.parseInt(String), Long.parseLong, Double.parseDouble this.a.accept(this.defaultParser.apply(s)); else if (this.handlerSPEX != null) this.handlerSPEX.run(); else throw new JsonStrParseArrException (getSPEX(s, this.defaultParser), this.ja, i, jv, this.CLASS); } // **************************************************************************************** // **************************************************************************************** // Static RECORD Factory/Builder Methods -- Primitive-Streams // **************************************************************************************** // **************************************************************************************** private static RECORD<Integer, IntStream> getIntStreamRec (int defaultValue, int FLAGS, ToIntFunction<String> optionalUserParser) { EffectivelyFinal<IntStream.Builder> EFISB = new EffectivelyFinal<>(null); RECORD<Integer, IntStream> rec = new RECORD<>( defaultValue, FLAGS, // The class of the (only) parameter to the Stream.Builder "accept" method int.class, // A simple way to test if there will be an "ArithmeticException" // Somewhat "counter-intuitive", but it works great... (JsonNumber jn) -> Integer.class == jn.numberValue().getClass(), StringParse::isInteger, // number-string-tester Integer::parseInt, // default-parser (string to int) Number::intValue, // numberConverter BigDecimal::intValueExact, // cause AEX (ArithmeticException) // Parse Number-Strings (this may be null) // IMPORTANT, If the user didn't pass a parser, it is imperative that this is null! (optionalUserParser != null) ? (String s) -> optionalUserParser.applyAsInt(s) : null, // Primitive (nulls not allowed) false, () -> EFISB.f = IntStream.builder(), // Stream.Builder constructor (Integer x) -> EFISB.f.accept(x), // Builder "accept" Function-Ptr () -> EFISB.f.build() // Builder "build" Function-Ptr ); // This is used by the methods in the Nested-Class "DimN" only. It is a wrapper // for the JsonArray -> JavaArray method. This is *NOT* used in ReadArrJSON rec.array1DGenerator = (JsonArray ja) -> jsonArrToStream(ja, rec).toArray(); return rec; } private static RECORD<Long, LongStream> getLongStreamRec (long defaultValue, int FLAGS, ToLongFunction<String> optionalUserParser) { EffectivelyFinal<LongStream.Builder> EFLSB = new EffectivelyFinal<>(null); RECORD<Long, LongStream> rec = new RECORD<>( defaultValue, FLAGS, long.class, // Class of the Stream.Builder "accept" Parameter ReadArrJSON::longTypePred, // Checks the JsonNumber retrieved StringParse::isLong, // String-tester (for parsing number-strings) Long::parseLong, // default-parser (number-string to long) Number::longValue, // numberConverter BigDecimal::longValueExact, // Generates AEX (ArithmeticException) // Parse Number-Strings (this may be null) // IMPORTANT, If the user didn't pass a parser, it is imperative that this is null! (optionalUserParser != null) ? (String s) -> optionalUserParser.applyAsLong(s) : null, // Primitive (nulls not allowed) false, () -> EFLSB.f = LongStream.builder(), // Stream.Builder constructor (Long x) -> EFLSB.f.accept(x), // Builder "accept" Function-Pointer () -> EFLSB.f.build() // Builder "build" Function-Pointer ); // This is used by the methods in the Nested-Class "DimN" only. It is a wrapper // for the JsonArray -> JavaArray method. This is *NOT* used in ReadArrJSON rec.array1DGenerator = (JsonArray ja) -> jsonArrToStream(ja, rec).toArray(); return rec; } private static RECORD<Double, DoubleStream> getDoubleStreamRec (double defaultValue, int FLAGS, ToDoubleFunction<String> optionalUserParser) { EffectivelyFinal<DoubleStream.Builder> EFDSB = new EffectivelyFinal<>(null); RECORD<Double, DoubleStream> rec = new RECORD<>( defaultValue, FLAGS, double.class, // Stream.Builder "accept" Parameter-Class ReadArrJSON::doubleTypePred, // Checks the JsonNumber retrieved StringParse::isDouble, // String-tester (for parsing number-strings) Double::parseDouble, // default-parser (number-string to double) (Number n) -> n.doubleValue(), // numberConverter // Generate an AEX if the "StringParse.isDouble" failed (BigDecimal bd) -> { throw new ArithmeticException("Invalid Input"); }, // Parse Number-Strings (this may be null) // IMPORTANT, If the user didn't pass a parser, it is imperative that this is null! (optionalUserParser != null) ? (String s) -> optionalUserParser.applyAsDouble(s) : null, // Primitive (nulls not allowed) false, () -> EFDSB.f = DoubleStream.builder(), // Stream.Builder constructor (Double x) -> EFDSB.f.accept(x), // Builder "accept" FunctionPtr () -> EFDSB.f.build() // Builder "build" FunctionPtr ); // This is used by the methods in the Nested-Class "DimN" only. It is a wrapper // for the JsonArray -> JavaArray method. This is *NOT* used in ReadArrJSON rec.array1DGenerator = (JsonArray ja) -> jsonArrToStream(ja, rec).toArray(); return rec; } // **************************************************************************************** // **************************************************************************************** // Static RECORD Factory/Builder Methods -- Boxed-Primitive-Streams // **************************************************************************************** // **************************************************************************************** private static RECORD<Integer, Stream<Integer>> getINTEGERStreamRec (int defaultValue, int FLAGS, Function<String, Integer> optionalUserParser) { RECORD<Integer, Stream<Integer>> rec = new RECORD<>( defaultValue, FLAGS, Integer.class, // Class of the Stream.Builder "accept" Parameter (JsonNumber jn) -> jn.numberValue().getClass() == Integer.class, StringParse::isInteger, // String-tester (for parsing number-strings) Integer::parseInt, // default-parser (number-string to Integer) Number::intValue, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) BigDecimal::intValueExact, // Generates AEX on fail optionalUserParser ); // This is used by the methods in the Nested-Class "DimN" only. It is a wrapper // for the JsonArray -> JavaArray method. This is *NOT* used in ReadArrJSON. // Note that this produces a Boxed-Type Array **ONLY**, if the user wants a // primitive "int[]" array (rather than an "Integer[]"), "IntStream.toArray" is used rec.array1DGenerator = (JsonArray ja) -> jsonArrToBoxedStream(ja, rec).toArray(Integer[]::new); return rec; } private static RECORD<Short, Stream<Short>> getSHORTStreamRec( short defaultValue, int FLAGS, Function<String, Short> optionalUserParser, boolean primitiveOrBoxedOutput1DArray ) { RECORD<Short, Stream<Short>> rec = new RECORD<>( defaultValue, FLAGS, Short.class, // Class of the Stream.Builder "accept" Parameter ReadArrJSON::shortTypePred, // Checks the JsonNumber retrieved StringParse::isShort, // String-tester (for parsing number-strings) Short::parseShort, // default-parser (number-string to short) Number::shortValue, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) BigDecimal::shortValueExact, // Generates AEX on fail optionalUserParser ); // Only used by "DimN" Sub-Class. It builds the 1D arrays. Since short's do not have // a "BoxedStream" (and ergo, do not have a ShortStream.toArray method), this must be // used to dispatch-build *BOTH* a short[] and a Short[] rec.array1DGenerator = primitiveOrBoxedOutput1DArray ? rec::array1DGeneratorShort : (JsonArray ja) -> jsonArrToBoxedStream(ja, rec).toArray(Short[]::new); return rec; } private static RECORD<Byte, Stream<Byte>> getBYTEStreamRec( byte defaultValue, int FLAGS, Function<String, Byte> optionalUserParser, boolean primitiveOrBoxedOutput1DArray ) { RECORD<Byte, Stream<Byte>> rec = new RECORD<>( defaultValue, FLAGS, Byte.class, // Class of the Stream.Builder "accept" Parameter ReadArrJSON::byteTypePred, // Checks the JsonNumber retrieved StringParse::isByte, // String-tester (for parsing number-strings) Byte::parseByte, // default-parser (number-string to byte) Number::byteValue, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) BigDecimal::byteValueExact, // Generates AEX on fail optionalUserParser ); // Only used by "DimN" Sub-Class. It builds the 1D arrays. Since short's do not have // a "BoxedStream" (and ergo, do not have a ShortStream.toArray method), this must be // used to dispatch-build *BOTH* a short[] and a Short[] rec.array1DGenerator = primitiveOrBoxedOutput1DArray ? rec::array1DGeneratorByte : (JsonArray ja) -> jsonArrToBoxedStream(ja, rec).toArray(Byte[]::new); return rec; } private static RECORD<Long, Stream<Long>> getLONGStreamRec (long defaultValue, int FLAGS, Function<String, Long> optionalUserParser) { RECORD<Long, Stream<Long>> rec = new RECORD<>( defaultValue, FLAGS, Long.class, // Class of the Stream.Builder "accept" Parameter ReadArrJSON::longTypePred, // Checks the JsonNumber retrieved StringParse::isLong, // String-tester (for parsing number-strings) Long::parseLong, // default-parser (number-string to long) Number::longValue, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) BigDecimal::longValueExact, // Generates AEX on fail optionalUserParser ); // This is used by the methods in the Nested-Class "DimN" only. It is a wrapper // for the JsonArray -> JavaArray method. This is *NOT* used in ReadArrJSON. // Note that this produces a Boxed-Type Array **ONLY**, if the user wants a // primitive "long[]" array (rather than an "Long[]"), "LongStream.toArray" is used rec.array1DGenerator = (JsonArray ja) -> jsonArrToBoxedStream(ja, rec).toArray(Long[]::new); return rec; } private static RECORD<Double, Stream<Double>> getDOUBLEStreamRec (double defaultValue, int FLAGS, Function<String, Double> optionalUserParser) { RECORD<Double, Stream<Double>> rec = new RECORD<>( defaultValue, FLAGS, Double.class, // Class of the Stream.Builder "accept" Parameter ReadArrJSON::doubleTypePred, // Checks the JsonNumber retrieved StringParse::isDouble, // String-tester (for parsing number-strings) Double::parseDouble, // default-parser (number-string to double) Number::doubleValue, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) (BigDecimal bd) -> { throw new ArithmeticException("Invalid Input"); }, optionalUserParser ); // This is used by the methods in the Nested-Class "DimN" only. It is a wrapper // for the JsonArray -> JavaArray method. This is *NOT* used in ReadArrJSON. // Note that this produces a Boxed-Type Array **ONLY**, if the user wants a // primitive "double[]" array (rather than an "Double[]"), "DoubleStream.toArray" is // used rec.array1DGenerator = (JsonArray ja) -> jsonArrToBoxedStream(ja, rec).toArray(Double[]::new); return rec; } private static RECORD<Float, Stream<Float>> getFLOATStreamRec( float defaultValue, int FLAGS, Function<String, Float> optionalUserParser, boolean primitiveOrBoxedOutput1DArray ) { RECORD<Float, Stream<Float>> rec = new RECORD<>( defaultValue, FLAGS, Float.class, // Class of the Stream.Builder "accept" Parameter ReadArrJSON::floatTypePred, // Checks the JsonNumber retrieved StringParse::isDouble, // String-tester (for parsing number-strings) Float::parseFloat, // default-parser (number-string to float) Number::floatValue, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) (BigDecimal bd) -> { throw new ArithmeticException("Invalid Input"); }, optionalUserParser ); // Only used by "DimN" Sub-Class. It builds the 1D arrays. Since short's do not have // a "BoxedStream" (and ergo, do not have a ShortStream.toArray method), this must be // used to dispatch-build *BOTH* a short[] and a Short[] rec.array1DGenerator = primitiveOrBoxedOutput1DArray ? rec::array1DGeneratorFloat : (JsonArray ja) -> jsonArrToBoxedStream(ja, rec).toArray(Float[]::new); return rec; } private static RECORD<Boolean, Stream<Boolean>> getBOOLEANStreamRec( boolean defaultValue, int FLAGS, Function<String, Boolean> optionalUserParser, boolean primitiveOrBoxedOutput1DArray ) { RECORD<Boolean, Stream<Boolean>> rec = new RECORD<>( defaultValue, FLAGS, Boolean.class, // Class of the Stream.Builder "accept" Parameter null, // Checks the JsonNumber retrieved s -> true, // String-tester (for parsing number-strings) Boolean::parseBoolean, // default-parser (number-string to float) null, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) null, optionalUserParser ); // Only used by "DimN" Sub-Class. It builds the 1D arrays. Since short's do not have // a "BoxedStream" (and ergo, do not have a ShortStream.toArray method), this must be // used to dispatch-build *BOTH* a short[] and a Short[] rec.array1DGenerator = primitiveOrBoxedOutput1DArray ? rec::array1DGeneratorBoolean : (JsonArray ja) -> jsonArrToBoxedStream(ja, rec).toArray(Boolean[]::new); return rec; } private static RECORD<Number, Stream<Number>> getNumberStreamRec (Number defaultValue, int FLAGS, Function<String, Number> optionalUserParser) { RECORD<Number, Stream<Number>> rec = new RECORD<>( defaultValue, FLAGS, Number.class, // Class of the Stream.Builder "accept" Parameter (JsonNumber jn) -> true, // Checks the JsonNumber retrieved StringParse::isDouble, // String-tester (for parsing number-strings) Float::parseFloat, // default-parser (number-string to float) (Number n) -> n, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) (BigDecimal bd) -> { throw new ArithmeticException("Invalid Input"); }, optionalUserParser ); rec.array1DGenerator = (JsonArray ja) -> jsonArrToBoxedStream(ja, rec).toArray(Number[]::new); return rec; } // **************************************************************************************** // **************************************************************************************** // Static RECORD Factory/Builder Methods -- Other-Streams // **************************************************************************************** // **************************************************************************************** private static RECORD<String, Stream<String>> getStringStreamRec(String defaultValue, int FLAGS) { RECORD<String, Stream<String>> rec = new RECORD<String, Stream<String>> ( defaultValue, FLAGS, String.class, // Class of the Stream.Builder "accept" Parameter null, // Checks the JsonNumber retrieved null, // String-tester (for parsing number-strings) null, // default-parser (number-string to float) null, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) null, // Generates AEX on fail null // optionalUserParser ); rec.array1DGenerator = (JsonArray ja) -> strArrayToStreamINTERNAL(ja, rec).toArray(String[]::new); return rec; } @SuppressWarnings("unchecked") // Array.newInstance returns "Object" not private static <X> RECORD<X, Stream<X>> getObjectStreamRec(X defaultValue, int FLAGS, Class<X> returnClass) { RECORD<X, Stream<X>> rec = new RECORD<>( defaultValue, FLAGS, returnClass, // Class of the Stream.Builder "accept" Parameter null, // Checks the JsonNumber retrieved null, // String-tester (for parsing number-strings) null, // default-parser (number-string to float) null, // numberConverter (JAPPROX_ON_AEX *AND* usual-ans) null, null // optionalUserParser ); rec.array1DGenerator = (JsonArray ja) -> objArrayToStreamINTERNAL(ja, rec).toArray ((int length) -> (X[]) Array.newInstance(returnClass, length)); return rec; } // **************************************************************************************** // **************************************************************************************** // Static RECORD Factory/Builder ==> HELPERS FOR THE FACTORY-METHODS // **************************************************************************************** // **************************************************************************************** // // REMEMBER: The 1-D Arrays ==> int[], long[], double[] are built directly from a // PrimitiveStream using PrimStream.toArray, they don't need a "helper" // This method is only used if the input was "Short", so it is actually not "Unchecked" // but the Java-Compiler isn't smart enough to see that. @SuppressWarnings("unchecked") private short[] array1DGeneratorShort(JsonArray ja) { short[] retArrShort = new short[ja.size()]; return boxedStreamToPrimitiveArray( jsonArrToBoxedStream(ja, (RECORD<Short, Stream<Short>>) this), ja, short.class, (Short s, int i) -> retArrShort[i] = s.shortValue(), retArrShort ); } // This method is only used if the input was "Byte", so it is actually not "Unchecked" // but the Java-Compiler isn't smart enough to see that. @SuppressWarnings("unchecked") private byte[] array1DGeneratorByte(JsonArray ja) { byte[] retArrByte = new byte[ja.size()]; return boxedStreamToPrimitiveArray( jsonArrToBoxedStream(ja, (RECORD<Byte, Stream<Byte>>) this), ja, byte.class, (Byte s, int i) -> retArrByte[i] = s.byteValue(), retArrByte ); } // This method is only used if the input was "Float", so it is actually not "Unchecked" // but the Java-Compiler isn't smart enough to see that. @SuppressWarnings("unchecked") private float[] array1DGeneratorFloat(JsonArray ja) { float[] retArrFloat = new float[ja.size()]; return boxedStreamToPrimitiveArray( jsonArrToBoxedStream(ja, (RECORD<Float, Stream<Float>>) this), ja, float.class, (Float s, int i) -> retArrFloat[i] = s.floatValue(), retArrFloat ); } // This method is only used if the input was "Boolean", so it is actually not "Unchecked" // but the Java-Compiler isn't smart enough to see that. @SuppressWarnings("unchecked") private boolean[] array1DGeneratorBoolean(JsonArray ja) { boolean[] retArrBoolean = new boolean[ja.size()]; return boxedStreamToPrimitiveArray( booleanArrayToBoxedStreamINTERNAL (ja, (RECORD<Boolean, Stream<Boolean>>) this), ja, boolean.class, (Boolean s, int i) -> retArrBoolean[i] = s.booleanValue(), retArrBoolean ); } } // ******************************************************************************************** // ******************************************************************************************** // PRIMARY CONVERTER FOR THREE STREAM FUNCTIONS // ******************************************************************************************** // ******************************************************************************************** // // NOTE: There is just no-way to document this damned thing. *ALL IT IS DOING* is telling you // that a Json-Array like [3, 4, 5] maps to a Java-Array like [3, 4, 5]. The extra // work is checking for things like ["3", 4, 5] (where the 3 is a String), since this // is completely legal in JSON, but not Java. AND ALSO: [3.0, 4.1, 5.2] can be mapped // to [3, 4, 5] - if and only if the FLAGS are properly set by the user... // // The whole value of this is the error-checking, and the ability to TIGHTEN AND RELAX the // requirements. It makes using a REST-API (which communicates with the outside world using // JSON), a whole bunch of ONE-LINE statments. (This HELPS a lot, but it is so AWFUL to look // at) /** * Builds a Primitive-Stream from a {@link JsonArray} * * @param ja The {@link JsonArray} * @param rec The configurations * * @throws JsonNullPrimitiveArrException <EMBED CLASS='external-html' * DATA-FILE-ID=RARR_PS_JNPAEX> * * @throws JsonArithmeticArrException <EMBED CLASS='external-html' DATA-FILE-ID=RARR_PS_JAAEX> * @throws JsonStrParseArrException <EMBED CLASS='external-html' DATA-FILE-ID=RARR_PS_JSPAEX> * @throws JsonTypeArrException <EMBED CLASS='external-html' DATA-FILE-ID=RARR_PS_JTAEX> */ protected static <T, U> U jsonArrToStream(JsonArray ja, RECORD<T, U> rec) { rec.ja = ja; rec.c.run(); // Construct a new Stream-Builder int SIZE = ja.size(); JsonValue jv; for (int i=0; i < SIZE; i++) switch ((jv = ja.get(i)).getValueType()) { // javax.json.JsonValue.ValueType.NULL case NULL: if (rec.handlerNull != null) rec.handlerNull.run(); else throw new JsonNullPrimitiveArrException(ja, i, NUMBER, rec.CLASS); break; // javax.json.JsonValue.ValueType.NUMBER case NUMBER: JsonNumber jn = (JsonNumber) jv; // Guaranteed to work properly ==> This is the "definition of RJA_AEX" // // "numberConverter" is just Number.intValue, longValue, doubleValue // Number.intValue(), longValue(), doubleValue() **DO NOT** throw any // exceptions. They round (if necessary), or return MAX_INT, MAX_LONG, etc... // (also, only if necessary) if (rec.RJA_AEX || rec.jsonNumWillFit.test(jn)) rec.a.accept(rec.numberConverter.apply(jn.numberValue())); else if (rec.handlerAEX != null) rec.handlerAEX.run(); else throw new JsonArithmeticArrException (getAEX(jn, rec.numberConverterExThrow), ja, i, NUMBER, jv, rec.CLASS); break; // javax.json.JsonValue.ValueType.STRING case STRING: rec.handlerJsonString.accept(jv, i); break; // javax.json.JsonValue.ValueType.TRUE, FALSE, ARRAY, OBJECT default: if (rec.handlerWrongType != null) rec.handlerWrongType.run(); else throw new JsonTypeArrException(ja, i, NUMBER, jv, rec.CLASS); } // Run Stream.Builder.build(); return rec.b.get(); } // ******************************************************************************************** // ******************************************************************************************** // THREE JSON-ARRAY ==> JAVA-STREAM METHODS (int-stream, double-stream, long-stream) // ******************************************************************************************** // ******************************************************************************************** /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToStream(JsonArray, RECORD)} * <BR />Passes: Java {@code IntStream} Configurtion-Record * <BR />Removes: Any {@link JFlag} masks which might insert null-entries in the return-stream * <BR />For information about the {@link JFlag} parameter, click the method link above. * * <BR /><BR />Producing a standard java {@code int[]} array from an {@code IntStream} is a * trivial-converstion: * * <DIV CLASS=LOC>{@code * int[] arr = intArrayToStream(ja, -1, 0, null).toArray(); * }</DIV> */ public static IntStream intArrayToStream (JsonArray ja, int defaultValue, int FLAGS, ToIntFunction<String> optionalUserParser) { return jsonArrToStream( ja, RECORD.getIntStreamRec (defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, optionalUserParser) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToStream(JsonArray, RECORD)} * <BR />Passes: Java {@code LongStream} Configurtion-Record * <BR />Removes: Any {@link JFlag} masks which might insert null-entries in the return-stream * <BR />For information about the {@link JFlag} parameter, click the method link above. * * <BR /><BR />Producing a standard java {@code long[]} array from a {@code LongStream} is a * trivial-converstion: * * <DIV CLASS=LOC>{@code * long[] arr = longArrayToStream(ja, -1, 0, null).toArray(); * }</DIV> */ public static LongStream longArrayToStream (JsonArray ja, long defaultValue, int FLAGS, ToLongFunction<String> optionalUserParser) { return jsonArrToStream( ja, RECORD.getLongStreamRec (defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, optionalUserParser) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToStream(JsonArray, RECORD)} * <BR />Passes: Java {@code DoubleStream} Configurtion-Record * <BR />Removes: Any {@link JFlag} masks which might insert null-entries in the return-stream * <BR />For information about the {@link JFlag} parameter, click the method link above. * * <BR /><BR />Producing a standard java {@code double[]} array from a {@code DoubleStream} is * a trivial-converstion: * * <DIV CLASS=LOC>{@code * double[] arr = doubleArrayToStream(ja, -1, 0, null).toArray(); * }</DIV> */ public static DoubleStream doubleArrayToStream (JsonArray ja, double defaultValue, int FLAGS, ToDoubleFunction<String> optionalUserParser) { return jsonArrToStream( ja, RECORD.getDoubleStreamRec (defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, optionalUserParser) ); } // ******************************************************************************************** // ******************************************************************************************** // PRIMARY CONVERTER FOR STREAM OF BOXED-TYPES // ******************************************************************************************** // ******************************************************************************************** /** * Builds a Stream of Boxed-Type Numbers from a {@link JsonArray} * @param rec The configurations * @throws JsonNullPrimitiveArrException <EMBED CLASS='external-html' * DATA-FILE-ID=RARR_BS_JNPAEX> * @throws JsonArithmeticArrException <EMBED CLASS='external-html' DATA-FILE-ID=RARR_BS_JAAEX> * @throws JsonStrParseArrException <EMBED CLASS='external-html' DATA-FILE-ID=RARR_BS_JSPAEX> * @throws JsonTypeArrException <EMBED CLASS='external-html' DATA-FILE-ID=RARR_BS_JTAEX> */ protected static <T, U> U jsonArrToBoxedStream(JsonArray ja, RECORD<T, U> rec) { rec.c.run(); // Construct a new Stream-Builder rec.ja = ja; int SIZE = ja.size(); JsonValue jv; for (int i=0; i < SIZE; i++) switch ((jv = ja.get(i)).getValueType()) { // javax.json.JsonValue.ValueType.NULL case NULL: rec.handlerNull.run(); break; // javax.json.JsonValue.ValueType.NUMBER case NUMBER: JsonNumber jn = (JsonNumber) jv; // Guaranteed to work properly ==> This is the "definition of RJA_AEX" // // Number.intValue(), longValue(), doubleValue() **DO NOT** throw any // exceptions. They round (if necessary), or return MAX_INT, MAX_LONG, etc... // (also, only if necessary) if (rec.RJA_AEX || rec.jsonNumWillFit.test(jn)) rec.a.accept(rec.numberConverter.apply(jn.numberValue())); else if (rec.handlerAEX != null) rec.handlerAEX.run(); else throw new JsonArithmeticArrException (getAEX(jn, rec.numberConverterExThrow), ja, i, NUMBER, jv, rec.CLASS); break; // javax.json.JsonValue.ValueType.STRING case STRING: rec.handlerJsonString.accept(jv, i); break; // OBJECT, ARRAY, TRUE, FALSE default: if (rec.handlerWrongType != null) rec.handlerWrongType.run(); else throw new JsonTypeArrException(ja, i, NUMBER, jv, rec.CLASS); } // Run Stream.Builder.build() return rec.b.get(); } // ******************************************************************************************** // ******************************************************************************************** // Json-Array to Java Arrays of Primitives // ******************************************************************************************** // ******************************************************************************************** /** * Converts a Java Boxed Stream to a Primitive Array. * @param <T> The generic-type of the {@code java.util.stream.Stream} * @param <U> The returned primitive-array type * @param boxedStream A Java Boxed Stream * @param arrayBuilder A consumer which inserts a Boxed-Number into the Primitive-Array * @param ja The {@link JsonArray} that generated the Boxed-Stream. Needed for error-output * @param returnClass The {@code java.lang.Class} (generic-type parameter) for the * {@code Stream}. In other words, the {@code Class} for type-parameter {@code <T>}. * This is only needed if there is an exception, for proper & readable error-reporting. */ protected static <T, U> U boxedStreamToPrimitiveArray( Stream<T> boxedStream, JsonArray ja, Class<T> returnClass, ObjIntConsumer<T> arrayBuilder, U retArr ) { // Since the array-index is used inside of a LAMBDA, this "EffectivelyFinal" counter // class becomes necessary. Counter counter = new Counter(-1); // Don't forget, Stream's are not guaranteed to be processed in order, unless an // explicit request is made using something like 'forEachOrdered' boxedStream.forEachOrdered((T boxedPrimitive) -> { int i = counter.addOne(); // "Final, or Effectively Final" // A Primitive-Array (like int[], long[], boolean[] etc...) may not have null if (boxedPrimitive == null) throw new JsonNullPrimitiveArrException(ja, i, NUMBER, returnClass); // The 'arrayBuilder' just assigns the value to the array[i] arrayBuilder.accept(boxedPrimitive, i); }); return retArr; } /** * Convenience Method. * <BR />Invokes: {@link #shortArrayToBoxedStream(JsonArray, short, int, Function)} * <BR />And: {@link #boxedStreamToPrimitiveArray(Stream, JsonArray, Class, ObjIntConsumer, * Object)} * <BR /> * <BR />Converts: {@link JsonArray} to {@code Stream<Short>} and then to {@code short[]} * <BR />Removes: Any {@link JFlag} masks which might insert null-entries in the return-array * <BR /> * <BR />For information about using {@code FLAGS}, see: * <B>{@link #jsonArrToBoxedStream(JsonArray, RECORD)}</B> */ public static short[] shortArray (JsonArray ja, short defaultValue, int FLAGS, ToShortFunction<String> optionalUserParser) { short[] retArr = new short[ja.size()]; return boxedStreamToPrimitiveArray( shortArrayToBoxedStream( // If there are any "Return null if..." JFlag's, they are eliminated ja, defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, // IMPORTANT, If the user didn't pass a parser, it is imperative that this is null! (optionalUserParser != null) ? (String s) -> optionalUserParser.applyAsShort(s) : null ), ja, short.class, (Short s, int i) -> retArr[i] = s.shortValue(), retArr ); } /** * Convenience Method. * <BR />Invokes: {@link #byteArrayToBoxedStream(JsonArray, byte, int, Function)} * <BR />And: {@link #boxedStreamToPrimitiveArray(Stream, JsonArray, Class, ObjIntConsumer, * Object)} * <BR /> * <BR />Converts: {@link JsonArray} to {@code Stream<Byte>} and then to {@code byte[]} * <BR />Removes: Any {@link JFlag} masks which might insert null-entries in the return-array * <BR /> * <BR />For information about using {@code FLAGS}, see: * <B>{@link #jsonArrToBoxedStream(JsonArray, RECORD)}</B> */ public static byte[] byteArray (JsonArray ja, byte defaultValue, int FLAGS, ToByteFunction<String> optionalUserParser) { byte[] retArr = new byte[ja.size()]; return boxedStreamToPrimitiveArray( byteArrayToBoxedStream( // If there are any "Return null if..." JFlag's, they are eliminated ja, defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, // IMPORTANT, If the user didn't pass a parser, it is imperative that this is null! (optionalUserParser != null) ? (String s) -> optionalUserParser.applyAsByte(s) : null ), ja, byte.class, (Byte s, int i) -> retArr[i] = s.byteValue(), retArr ); } /** * Convenience Method. * <BR />Invokes: {@link #floatArrayToBoxedStream(JsonArray, float, int, Function)} * <BR />And: {@link #boxedStreamToPrimitiveArray(Stream, JsonArray, Class, ObjIntConsumer, * Object)} * <BR /> * <BR />Converts: {@link JsonArray} to {@code Stream<Float>} and then to {@code float[]} * <BR />Removes: Any {@link JFlag} masks which might insert null-entries in the return-array * <BR /> * <BR />For information about using {@code FLAGS}, see: * <B>{@link #jsonArrToBoxedStream(JsonArray, RECORD)}</B> */ public static float[] floatArray (JsonArray ja, float defaultValue, int FLAGS, ToFloatFunction<String> optionalUserParser) { float[] retArr = new float[ja.size()]; return boxedStreamToPrimitiveArray( floatArrayToBoxedStream( // If there are any "Return null if..." JFlag's, they are eliminated ja, defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, // IMPORTANT, If the user didn't pass a parser, it is imperative that this is null! (optionalUserParser != null) ? (String s) -> optionalUserParser.applyAsFloat(s) : null ), ja, float.class, (Float s, int i) -> retArr[i] = s.floatValue(), retArr ); } /** * Convenience Method. * <BR />Invokes: {@link #booleanArrayToBoxedStream(JsonArray, boolean, int, Function)} * <BR />And: {@link #boxedStreamToPrimitiveArray(Stream, JsonArray, Class, ObjIntConsumer, * Object)} * <BR /> * <BR />Converts: {@link JsonArray} to {@code Stream<Boolean>} and then to {@code boolean[]} * <BR />Removes: Any {@link JFlag} masks which might insert null-entries in the return-array * <BR /> * <BR />For information about using {@code FLAGS}, see: * <B>{@link #jsonArrToBoxedStream(JsonArray, RECORD)}</B> */ public static boolean[] booleanArray( JsonArray ja, boolean defaultValue, int FLAGS, Predicate<String> optionalUserParser ) { boolean[] retArr = new boolean[ja.size()]; return boxedStreamToPrimitiveArray( booleanArrayToBoxedStream( // If there are any "Return null if...", they are eliminated ja, defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, // IMPORTANT, If the user didn't pass a parser, it is imperative that this is null! (optionalUserParser != null) ? (String s) -> optionalUserParser.test(s) : null ), ja, boolean.class, (Boolean s, int i) -> retArr[i] = s.booleanValue(), retArr ); } // ******************************************************************************************** // ******************************************************************************************** // Json-Array to Stream of Boxed-Number Types // ******************************************************************************************** // ******************************************************************************************** /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToBoxedStream(JsonArray, RECORD)} * <BR />Fills in Configuration Record for Integer-Retrieval * <BR />For more Information about the {@link JFlag} Parameter, Click the Method-Link above. * <BR /> * <BR />Producing a Boxed-Integer Array from this Method is as Follows: * <DIV CLASS=LOC>{@code * Integer[] arr = integerArrayToBoxedStream(ja, -1, 0 null).toArray(Integer[]::new); * }</DIV> */ public static Stream<Integer> integerArrayToBoxedStream (JsonArray ja, int defaultValue, int FLAGS, Function<String, Integer> optionalUserParser) { return jsonArrToBoxedStream (ja, RECORD.getINTEGERStreamRec(defaultValue, FLAGS, optionalUserParser)); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToBoxedStream(JsonArray, RECORD)} * <BR />Fills in Configuration Record for Short-Retrieval * <BR />For more Information about the {@link JFlag} Parameter, Click the Method-Link above. * <BR /> * <BR />Producing a Boxed-Short Array from this Method is as Follows: * <DIV CLASS=LOC>{@code * Short[] arr = shortArrayToBoxedStream(ja, -1, 0 null).toArray(Short[]::new); * }</DIV> */ public static Stream<Short> shortArrayToBoxedStream (JsonArray ja, short defaultValue, int FLAGS, Function<String, Short> optionalUserParser) { return jsonArrToBoxedStream (ja, RECORD.getSHORTStreamRec(defaultValue, FLAGS, optionalUserParser, false)); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToBoxedStream(JsonArray, RECORD)} * <BR />Fills in Configuration Record for Byte-Retrieval * <BR />For more Information about the {@link JFlag} Parameter, Click the Method-Link above. * <BR /> * <BR />Producing a Boxed-Byte Array from this Method is as Follows: * <DIV CLASS=LOC>{@code * Byte[] arr = byteArrayToBoxedStream(ja, -1, 0 null).toArray(Byte[]::new); * }</DIV> */ public static Stream<Byte> byteArrayToBoxedStream (JsonArray ja, byte defaultValue, int FLAGS, Function<String, Byte> optionalUserParser) { return jsonArrToBoxedStream (ja, RECORD.getBYTEStreamRec(defaultValue, FLAGS, optionalUserParser, false)); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToBoxedStream(JsonArray, RECORD)} * <BR />Fills in Configuration Record for Long-Retrieval * <BR />For more Information about the {@link JFlag} Parameter, Click the Method-Link above. * <BR /> * <BR />Producing a Boxed-Long Array from this Method is as Follows: * <DIV CLASS=LOC>{@code * Long[] arr = longArrayToBoxedStream(ja, -1, 0 null).toArray(Long[]::new); * }</DIV> */ public static Stream<Long> longArrayToBoxedStream (JsonArray ja, long defaultValue, int FLAGS, Function<String, Long> optionalUserParser) { return jsonArrToBoxedStream (ja, RECORD.getLONGStreamRec(defaultValue, FLAGS, optionalUserParser)); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToBoxedStream(JsonArray, RECORD)} * <BR />Fills in Configuration Record for Double-Retrieval * <BR />For more Information about the {@link JFlag} Parameter, Click the Method-Link above. * <BR /> * <BR />Producing a Boxed-Double Array from this Method is as Follows: * <DIV CLASS=LOC>{@code * Double[] arr = doubleArrayToBoxedStream(ja, -1, 0 null).toArray(Double[]::new); * }</DIV> */ public static Stream<Double> doubleArrayToBoxedStream (JsonArray ja, double defaultValue, int FLAGS, Function<String, Double> optionalUserParser) { return jsonArrToBoxedStream (ja, RECORD.getDOUBLEStreamRec(defaultValue, FLAGS, optionalUserParser)); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToBoxedStream(JsonArray, RECORD)} * <BR />Fills in Configuration Record for Float-Retrieval * <BR />For more Information about the {@link JFlag} Parameter, Click the Method-Link above. * <BR /> * <BR />Producing a Boxed-Float Array from this Method is as Follows: * <DIV CLASS=LOC>{@code * Float[] arr = floatArrayToBoxedStream(ja, -1, 0 null).toArray(Float[]::new); * }</DIV> */ public static Stream<Float> floatArrayToBoxedStream (JsonArray ja, float defaultValue, int FLAGS, Function<String, Float> optionalUserParser) { return jsonArrToBoxedStream (ja, RECORD.getFLOATStreamRec(defaultValue, FLAGS, optionalUserParser, false)); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToBoxedStream(JsonArray, RECORD)} * <BR />Fills in Configuration Record for Number-Retrieval * <BR />For more Information about the {@link JFlag} Parameter, Click the Method-Link above. * <BR /> * <BR />Producing a Boxed-Number Array from this Method is as Follows: * <DIV CLASS=LOC>{@code * Number[] arr = numberArrayToBoxedStream(ja, -1, 0 null).toArray(Number[]::new); * }</DIV> */ public static Stream<Number> numberArrayToBoxedStream (JsonArray ja, Number defaultValue, int FLAGS, Function<String, Number> optionalUserParser) { return jsonArrToBoxedStream (ja, RECORD.getNumberStreamRec(defaultValue, FLAGS, optionalUserParser)); } // ******************************************************************************************** // ******************************************************************************************** // More Types // ******************************************************************************************** // ******************************************************************************************** /** * Converts a {@link JsonArray} into a {@code Stream<String>}. A Java {@code Stream<String>} * is easily converted to a {@code String[]}-Array via a call to: * * <DIV CLASS=LOC>{@code * String[] sArr = strArrayToStream(myJsonArray, null, 0).toArray(String[]::new); * }</DIV> * * @param ja Any {@code JsonArray}, but preferrably one which contains instances of * {@link JsonString} * * @param defaultValue When used in conjunction with {@code 'FLAGS'}, this default-value may be * inserted into the output-array when error cases occur at particular array-index locations. * * @param FLAGS Optional flags. See {@link JFlag} for details. * * @return A Java {@code Stream<String>}. */ public static Stream<String> strArrayToStream(JsonArray ja, String defaultValue, int FLAGS) { return strArrayToStreamINTERNAL(ja, RECORD.getStringStreamRec(defaultValue, FLAGS)); } private static Stream<String> strArrayToStreamINTERNAL (JsonArray ja, RECORD<String, Stream<String>> rec) { int SIZE = ja.size(); JsonValue jv = null; rec.c.run(); // Construct a new Stream-Builder rec.ja = ja; for (int i=0; i < SIZE; i++) switch ((jv = ja.get(i)).getValueType()) { // javax.json.JsonValue.ValueType.NULL case NULL: rec.handlerNull.run(); break; // javax.json.JsonValue.ValueType.STRING case STRING: rec.a.accept(((JsonString) jv).getString()); break; // OBJECT, ARRAY, TRUE, FALSE, NUMBER default: if (rec.RTS_WT) rec.a.accept(jv.toString()); else if (rec.handlerWrongType != null) rec.handlerWrongType.run(); else throw new JsonTypeArrException(ja, i, STRING, jv, String.class); } // Run Stream.Builder.build() return rec.b.get(); } /** * Converts a {@link JsonArray} into a {@code Stream<Boolean>}. A Java {@code Stream<Boolean>} * is easily converted to a {@code Boolean[]}-Array via a call to the lines below. Note that * in this example, the return array is an array of {@code Boolean} objects; it is not a * primitive {@code boolean[]} array. (To parse into a primitive array, use * {@link #booleanArray(JsonArray, boolean, int, Predicate)}) * * <DIV CLASS=LOC>{@code * Boolean[] bArr = booleanArrayToBoxedStream(myJsonArray, false, 0, null) * .toArray(Boolean[]::new); * }</DIV> * * @param ja Any {@code JsonArray}, but preferrably one which contains instances of * {@link JsonValue#TRUE} or {@link JsonValue#FALSE} * * @param defaultValue When used in conjunction with {@code 'FLAGS'}, this default-value may be * inserted into the output-array when error cases occur at particular array-index locations. * * @param FLAGS Optional flags. See {@link JFlag} for details. * * @param optionalUserParser If the appropriate flags are set, if a {@link JsonString} is * encountered while processing the {@code JsonArray}, an attempt to parse the {@code String} * into a {@code Boolean} will be made using this {@code String}-parser. * * @return A Java {@code Stream<Boolean>}. */ public static Stream<Boolean> booleanArrayToBoxedStream( JsonArray ja, boolean defaultValue, int FLAGS, Function<String, Boolean> optionalUserParser ) { return booleanArrayToBoxedStreamINTERNAL( ja, RECORD.getBOOLEANStreamRec (defaultValue, FLAGS, optionalUserParser, false) ); } private static Stream<Boolean> booleanArrayToBoxedStreamINTERNAL (JsonArray ja, RECORD<Boolean, Stream<Boolean>> rec) { int SIZE = ja.size(); JsonValue jv = null; rec.c.run(); // Construct a new Stream-Builder rec.ja = ja; for (int i=0; i < SIZE; i++) switch ((jv = ja.get(i)).getValueType()) { case NULL: rec.handlerNull.run(); break; case TRUE: rec.a.accept(true); break; case FALSE: rec.a.accept(false); break; case STRING: rec.handlerJsonString.accept(jv, i); break; // javax.json.JsonValue.ValueType.NUMBER, OBJECT, ARRAY default: if (rec.handlerWrongType != null) rec.handlerWrongType.run(); else throw new JsonTypeArrException(ja, i, TRUE, jv, Boolean.class); } // Run Stream.Builder.build() return rec.b.get(); } /** * Converts a {@link JsonArray} into a {@code Stream<T>}. A Java {@code Stream<T>} * is easily converted to a {@code T[]}-Array via a call to the line below. * * <DIV CLASS=LOC>{@code * MyClass[] bArr = objArrayToStream(myJsonArray, null, 0, MyClass.class) * .toArray(MyClass[]::new); * }</DIV> * * @param <T> This is the 'type' of the array being built. If there were a class, for example, * named class {@code 'Automobile'}, the value passed to parameter {@code 'returnClass'} would * simply be {@code Automobile.class}. * * @param ja Any {@code JsonArray}, but preferrably one which contains instances of * {@link JsonValue#TRUE} or {@link JsonValue#FALSE} * * @param defaultValue When used in conjunction with {@code 'FLAGS'}, this default-value may be * inserted into the output-array when error cases occur at particular array-index locations. * * @param FLAGS Optional flags. See {@link JFlag} for details. * * @param returnClass The {@code java.lang.Class} of the Object being built * * @return A Java {@code Stream<T>}. */ public static <T> Stream<T> objArrayToStream (JsonArray ja, T defaultValue, int FLAGS, Class<T> returnClass) { return objArrayToStreamINTERNAL (ja, RECORD.getObjectStreamRec(defaultValue, FLAGS, returnClass)); } private static <T> Stream<T> objArrayToStreamINTERNAL (JsonArray ja, RECORD<T, Stream<T>> rec) { int SIZE = ja.size(); JsonValue jv = null; rec.c.run(); // Construct a new Stream-Builder rec.ja = ja; for (int i=0; i < SIZE; i++) switch ((jv = ja.get(i)).getValueType()) { // javax.json.JsonValue.ValueType.NULL case NULL: rec.handlerNull.run(); break; // javax.json.JsonValue.ValueType.OBJECT case OBJECT: rec.a.accept(ReadJSON.getObject(((JsonObject) jv), rec.CLASS)); break; // javax.json.JsonValue.ValueType.NUMBER, STRING, TRUE, FALSE, ARRAY default: if (rec.handlerWrongType != null) rec.handlerWrongType.run(); else throw new JsonTypeArrException(ja, i, TRUE, jv, rec.CLASS); } // Run Stream.Builder.build() return rec.b.get(); } /** * Parses Multi-Dimensional JSON Array's into Multi-Dimensional Java Array's. * * <EMBED CLASS='external-html' DATA-FILE-ID=GLASS_FISH_NOTE> * <EMBED CLASS='external-html' DATA-FILE-ID=READ_ARR_JDIMN> * * @see Json * @see JsonArray */ @Torello.JavaDoc.StaticFunctional @Torello.JavaDoc.JDHeaderBackgroundImg(EmbedTagFileID="JSON_JDHBI") public static class DimN { private DimN() { } /** * Check user input, and throws exceptions if the array-class has not been properly * chosen. * @param retArrClass This must be a primitive-array class, possibly of multiple dimensions * * @param rootClass The expected "root class". For {@code int[][].class}, the root class * would be {@code int.class}. * * @return Parameter {@code retArrClass} is the return value of this checker method * * @throws IllegalArgumentExcetion If parameter {@code retArrClass}: * <BR /><BR /><OL CLASS=JDOL> * <LI>If calling {@code retArrClass.isArray()} returns {@code FALSE}</LI> * <LI>If the root-array type is not the appropriate type for the method that was called * </LI> * </OL> */ private static <T> Class<T> CHECK_ARRAY_CLASS(Class<T> retArrClass, Class<?> rootClass) { if (! retArrClass.isArray()) throw new IllegalArgumentException( "The class you have passed to parameter 'retArrClass' " + "[" + retArrClass.getSimpleName() + "], is not an array" ); Class<?> componentClass = retArrClass.getComponentType(); while (componentClass.isArray()) componentClass = componentClass.getComponentType(); if (! rootClass.equals(componentClass)) throw new IllegalArgumentException( "The class you have passed to parameter 'retArrClass' " + "[" + retArrClass.getSimpleName() + "], is not a(n) " + rootClass.getSimpleName() + "-array." ); return retArrClass; } private static Class<?> GET_ARRAY_BASE_COMPONENT_CLASS_AND_CHECK (Class<?> retArrClass, Object defaultValue) { if (! retArrClass.isArray()) throw new IllegalArgumentException( "The class you have passed to parameter 'retArrClass' " + "[" + retArrClass.getSimpleName() + "], is not an array" ); Class<?> componentClass = retArrClass.getComponentType(); while (componentClass.isArray()) componentClass = componentClass.getComponentType(); if ( (defaultValue != null) && componentClass.isAssignableFrom(defaultValue.getClass()) ) throw new IllegalArgumentException( "The User Provided Default Value of type: "+ "[" + defaultValue.getClass().getName() + "], cannot be assigned to the " + "Component-Type of the Array: " + "[" + componentClass.getName() + "]" ); return componentClass; } // **************************************************************************************** // **************************************************************************************** // Primitive Multi-Dimensional Array Methods // **************************************************************************************** // **************************************************************************************** /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code int} Configuration-RECORD * <BR />Removes: Any {@code FLAGS} that would produce a null array-entry * <BR /> * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code int}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * int[][] arr = ReadArrJSON.DimN.intArr(jsonArray, -1, 0, null, int[][].class); * }</DIV> */ public static <T> T intArr( JsonArray ja, int defaultValue, int FLAGS, ToIntFunction<String> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getIntStreamRec (defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, optionalUserParser), CHECK_ARRAY_CLASS(retArrClass, int.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code long} Configuration-RECORD * <BR />Removes: Any {@code FLAGS} that would produce a null array-entry * <BR /> * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code long}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * long[][] arr = ReadArrJSON.DimN.longArr(jsonArray, -1, 0, null, long[][].class); * }</DIV> */ public static <T> T longArr( JsonArray ja, long defaultValue, int FLAGS, ToLongFunction<String> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getLongStreamRec (defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, optionalUserParser), CHECK_ARRAY_CLASS(retArrClass, long.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code double} Configuration-RECORD * <BR />Removes: Any {@code FLAGS} that would produce a null array-entry * <BR /> * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code double}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * double[][] arr = ReadArrJSON.DimN.doubleArr(jsonArray, -1, 0, null, double[][].class); * }</DIV> */ public static <T> T doubleArr( JsonArray ja, double defaultValue, int FLAGS, ToDoubleFunction<String> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getDoubleStreamRec (defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, optionalUserParser), CHECK_ARRAY_CLASS(retArrClass, double.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code short} Configuration-RECORD * <BR />Removes: Any {@code FLAGS} that would produce a null array-entry * <BR /> * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code short}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * short[][] arr = ReadArrJSON.DimN.shortArr(jsonArray, -1, 0, null, short[][].class); * }</DIV> */ public static <T> T shortArr( JsonArray ja, short defaultValue, int FLAGS, ToShortFunction<String> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getSHORTStreamRec( defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, (optionalUserParser != null) ? (String s) -> optionalUserParser.applyAsShort(s) : null, true ), CHECK_ARRAY_CLASS(retArrClass, short.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code byte} Configuration-RECORD * <BR />Removes: Any {@code FLAGS} that would produce a null array-entry * <BR /> * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code byte}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * byte[][] arr = ReadArrJSON.DimN.byteArr(jsonArray, -1, 0, null, byte[][].class); * }</DIV> */ public static <T> T byteArr( JsonArray ja, byte defaultValue, int FLAGS, ToByteFunction<String> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getBYTEStreamRec( defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, (optionalUserParser != null) ? (String s) -> optionalUserParser.applyAsByte(s) : null, true ), CHECK_ARRAY_CLASS(retArrClass, byte.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code float} Configuration-RECORD * <BR />Removes: Any {@code FLAGS} that would produce a null array-entry * <BR /> * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code float}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * float[][] arr = ReadArrJSON.DimN.floatArr(jsonArray, -1, 0, null, float[][].class); * }</DIV> */ public static <T> T floatArr( JsonArray ja, float defaultValue, int FLAGS, ToFloatFunction<String> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getFLOATStreamRec( defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, (optionalUserParser != null) ? (String s) -> optionalUserParser.applyAsFloat(s) : null, true ), CHECK_ARRAY_CLASS(retArrClass, float.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code boolean} Configuration-RECORD * <BR />Removes: Any {@code FLAGS} that would produce a null array-entry * <BR /> * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code boolean}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * boolean[][] arr = ReadArrJSON.DimN.booleanArr * (jsonArray, -1, 0, null, boolean[][].class); * }</DIV> */ public static <T> T booleanArr( JsonArray ja, boolean defaultValue, int FLAGS, Predicate<String> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getBOOLEANStreamRec( defaultValue, FLAGS & NOT_ALLOWED_RET_NULL_MASKS, (optionalUserParser != null) ? (String s) -> optionalUserParser.test(s) : null, true ), CHECK_ARRAY_CLASS(retArrClass, boolean.class) ); } // **************************************************************************************** // **************************************************************************************** // Boxed-Primitive Multi-Dimensional Array Methods // **************************************************************************************** // **************************************************************************************** /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code Integer} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code Integer}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * Integer[][] arr = ReadArrJSON.DimN.arrINTEGER(jsonArray, -1, 0, null, Integer[][].class); * }</DIV> */ public static <T> T arrINTEGER( JsonArray ja, int defaultValue, int FLAGS, Function<String, Integer> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getINTEGERStreamRec(defaultValue, FLAGS, optionalUserParser), CHECK_ARRAY_CLASS(retArrClass, Integer.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code Long} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code Long}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * Long[][] arr = ReadArrJSON.DimN.arrLONG(jsonArray, -1, 0, null, Long[][].class); * }</DIV> */ public static <T> T arrLONG( JsonArray ja, long defaultValue, int FLAGS, Function<String, Long> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getLONGStreamRec(defaultValue, FLAGS, optionalUserParser), CHECK_ARRAY_CLASS(retArrClass, Long.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code Double} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code Double}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * Double[][] arr = ReadArrJSON.DimN.arrDOUBLE(jsonArray, -1, 0, null, Double[][].class); * }</DIV> */ public static <T> T arrDOUBLE( JsonArray ja, double defaultValue, int FLAGS, Function<String, Double> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getDOUBLEStreamRec(defaultValue, FLAGS, optionalUserParser), CHECK_ARRAY_CLASS(retArrClass, Double.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code Short} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code Short}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * Short[][] arr = ReadArrJSON.DimN.arrSHORT(jsonArray, -1, 0, null, Short[][].class); * }</DIV> */ public static <T> T arrSHORT( JsonArray ja, short defaultValue, int FLAGS, Function<String, Short> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getSHORTStreamRec(defaultValue, FLAGS, optionalUserParser, true), CHECK_ARRAY_CLASS(retArrClass, Short.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code Byte} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code Byte}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * Byte[][] arr = ReadArrJSON.DimN.arrBYTE(jsonArray, -1, 0, null, Byte[][].class); * }</DIV> */ public static <T> T arrBYTE( JsonArray ja, byte defaultValue, int FLAGS, Function<String, Byte> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getBYTEStreamRec(defaultValue, FLAGS, optionalUserParser, true), CHECK_ARRAY_CLASS(retArrClass, Byte.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code Float} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code Float}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * Float[][] arr = ReadArrJSON.DimN.arrFLOAT(jsonArray, -1, 0, null, Float[][].class); * }</DIV> */ public static <T> T arrFLOAT( JsonArray ja, float defaultValue, int FLAGS, Function<String, Float> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getFLOATStreamRec(defaultValue, FLAGS, optionalUserParser, true), CHECK_ARRAY_CLASS(retArrClass, Float.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code Boolean} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code Boolean}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * Boolean[][] arr = ReadArrJSON.DimN.arrBOOLEAN * (jsonArray, false, 0, null, Boolean[][].class); * }</DIV> */ public static <T> T arrBOOLEAN( JsonArray ja, boolean defaultValue, int FLAGS, Function<String, Boolean> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getBOOLEANStreamRec(defaultValue, FLAGS, optionalUserParser, true), CHECK_ARRAY_CLASS(retArrClass, Boolean.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code Number} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code Number}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * Number[][] arr = ReadArrJSON.DimN.arrNumber(jsonArray, -1, 0, null, Number[][].class); * }</DIV> */ public static <T> T arrNumber( JsonArray ja, Number defaultValue, int FLAGS, Function<String, Number> optionalUserParser, Class<T> retArrClass ) { return jsonArrToJavaArr( ja, RECORD.getNumberStreamRec(defaultValue, FLAGS, optionalUserParser), CHECK_ARRAY_CLASS(retArrClass, Number.class) ); } // **************************************************************************************** // **************************************************************************************** // Non-Primitive Multi-Dimensional Array Methods // **************************************************************************************** // **************************************************************************************** /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code String} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code String}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * String[][] arr = ReadArrJSON.DimN.strArr(jsonArray, null, 0, String[][].class); * }</DIV> */ public static <T> T strArr (JsonArray ja, String defaultValue, int FLAGS, Class<T> retArrClass) { return jsonArrToJavaArr( ja, RECORD.getStringStreamRec(defaultValue, FLAGS), CHECK_ARRAY_CLASS(retArrClass, String.class) ); } /** * Convenience Method. * <BR />Invokes: {@link #jsonArrToJavaArr(JsonArray, ReadArrJSON.RECORD, Class)} * <BR />Passes: {@code Object} Configuration-RECORD * <BR />See link above for more {@link JFlag} explanations. * <BR /><B>NOTE:</B> {@code retArrClass} must be a multi-dimensinal {@code Object}-array. * <BR />(See last <B>"return-type"</B> parameter in example below) * * <DIV CLASS=LOC>{@code * MyClass[][] arr = ReadArrJSON.DimN.strArr(jsonArray, null, 0, MyClass[][].class); * }</DIV> */ @SuppressWarnings({"rawtypes", "unchecked"}) public static <T, U> T objArr (JsonArray ja, Object defaultValue, int FLAGS, Class<T> retArrClass) { Class baseClass = // (Class<U>) GET_ARRAY_BASE_COMPONENT_CLASS_AND_CHECK(retArrClass, defaultValue); return jsonArrToJavaArr (ja, RECORD.getObjectStreamRec(baseClass.cast(defaultValue), FLAGS, baseClass), retArrClass); } // **************************************************************************************** // **************************************************************************************** // The General Purpose Transformer Method // **************************************************************************************** // **************************************************************************************** /** * The array processor for this class. Handles all multi-dimensional array processing * requests. * * @param <T> The array type being returned. This {@code java.lang.Class} must be an * array-class. * * @param ja Any {@link JsonArray} * @param rec The Configuration-Record * @param retArrClass The class of the return array type. * * @return An array of type {@code T} * * @throws JsonNullPrimitiveArrException <EMBED CLASS='external-html' * DATA-FILE-ID=RARR_BS_JNPAEX> * @throws JsonArithmeticArrException <EMBED CLASS='external-html' DATA-FILE-ID=RARR_BS_JAAEX> * @throws JsonStrParseArrException <EMBED CLASS='external-html' DATA-FILE-ID=RARR_BS_JSPAEX> * @throws JsonTypeArrException <EMBED CLASS='external-html' DATA-FILE-ID=RARR_BS_JTAEX> */ @SuppressWarnings("unchecked") protected static <T> T jsonArrToJavaArr (JsonArray ja, RECORD<?, ?> rec, Class<T> retArrClass) { // If this is requesting a one-dimensional array, get it using the 1D-Generator, // and simply return that array. This requires a cast because there is no way to prove // to the Java-Compiler that <T> is equal to any return-value at all. // // Remember that this is only guaranteed (it works!) because the helper methods are all // protected or private, and it has been guaranteed through rigorous testing, and // preventing the user from playing with it! if (StringParse.countCharacters(retArrClass.getSimpleName(), '[') == 1) return (T) rec.array1DGenerator.apply(ja); // Otherwise, this is not a single-dimension (1D) array. Instead, the JsonArray needs // to be iterated, and this method called, recursively, on each of the sub-arrays. // // NOTE: 'compClass' will also be an array, but with one fewer dimensions Class<?> compClass = retArrClass.getComponentType(); int SIZE = ja.size(); T retArr = (T) Array.newInstance(compClass, SIZE); JsonValue jv = null; for (int i=0; i < SIZE; i++) switch ((jv = ja.get(i)).getValueType()) { // javax.json.JsonValue.ValueType.NULL case NULL: Array.set(retArr, i, null); break; // javax.json.JsonValue.ValueType.ARRAY (JsonArray) case ARRAY: Array.set (retArr, i, jsonArrToJavaArr((JsonArray) jv, rec, compClass)); break; // javax.json.JsonValue.ValueType.TRUE, FALSE, NUMBER, STRING, OBJECT default: if (rec.IN_NSAT) Array.set(retArr, i, null); else if (rec.S_NSAT) continue; else throw new JsonTypeArrException(ja, i, ARRAY, jv, retArrClass); } return retArr; } } } |