Package Torello.Browser
Class Memory
- java.lang.Object
-
- Torello.Browser.Memory
-
public class Memory extends java.lang.Object
Class created byAutomatic Code-Generator
.
This class was built using the Chrome Remote Dev-Tools A.P.I., which is specified by two JSON-RPC Files. These files were obtained from the Chrome Dev Tools Protocol Git Hub Page, which has a "Tip of Tree" (the latest) API-Specification Page Here: JSON-RPC Protocol Specification.
JSON-Viewable Google-API:
These files may be viewed here: browser_protocol.json and js_protocol.json.
These files were converted into this Java-Browser (CDT) Library; they are a Java-Alternative to the Node.js implementation.
HTML-Viewable API:
In addition to this Class-Library, these files were also converted to a simple HTML Page, which may be browsed here: Browser API Web-PageNode.js
RDP-API Implementation:
You may read about theNode.js Chrome Remote Interface
on the Node.js Package Manager Web-Site: NPM
[No Description Provided by Google]
This class is intended to be used with a Headless Browser
These methods have been tested, to some degree, using Google Chrome. In order to use this class you must start a web-browser instance and make a connection to the browser using aRemote Debugging Port
. The initializations may be accomplished using classBRDPC
(Browser Remote Debug Protocol Connection).
Google-Chrome was used during the development process of the classes in this particular package. Note that, lately, it has been asserted Microsoft has switched to using the Chrome-Engine for its Microsoft Edge Browser Internal Code-Base. Therefore, there may limited support / functionality when running the methods in this class with Microsoft-Edge. There is the possibility these will work with Opera & Safari.
Check whether the your Web-Browser will allow itself to be driven by theWeb-Socket RDP-Port 9223
.
Foreign Function API:
Every one of the methods that reside in this class are designed to do nothing more than:- Accept Parameters from the User, and "Marshall Them" into a Valid JSON-Request
- Transmit the Marshalled Request-JSON to a Headless Web-Browser over a Web-Socket RDP Connection
- Receive BOTH that Method's Results AND any Browser Event-Firings from the Web-Socket
- Parse JSON Method-Results and Browser-Event Firings, and Subsequently Convert them to Standard Java-Types
- Report these Method-Results and Browser-Events to the User via an User-Registered Event-Listener or a Promise Object
Java-HTML Difference:
Unlike the bulk of the Java HTML JAR Library, there is very little native Java-Code, and very little testing that may be done on any of the classes & methods in this package. The code inside these classes does nothing more than marshall-and-unmarshall Java-Types into Json-Requests (and vice-versa). The Java-Script & Browser modules inside of a Google-Chrome instance are, theoretically, handling these requests, and returning their results (or events) over the Web-Socket Connection.
It has been asserted (by Google Chrome Developers) that some of these methods are only "partially working" or "experimental".
Hi-Lited Source-Code:- View Here: Torello/Browser/Memory.java
- Open New Browser-Tab: Torello/Browser/Memory.java
File Size: 31,422 Bytes Line Count: 767 '\n' Characters Found
Stateless Class:This class neither contains any program-state, nor can it be instantiated. The@StaticFunctional
Annotation may also be called 'The Spaghetti Report'.Static-Functional
classes are, essentially, C-Styled Files, without any constructors or non-static member fields. It is a concept very similar to the Java-Bean's@Stateless
Annotation.
- 1 Constructor(s), 1 declared private, zero-argument constructor
- 10 Method(s), 10 declared static
- 6 Field(s), 6 declared static, 5 declared final
- Fields excused from final modifier (with explanation):
Field 'counter' is not final. Reason: CONFIGURATION
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Nested Class Summary
Type Classes: Memory Domain Types Modifier and Type Inner-Class static class
Memory.Module
Executable module informationstatic class
Memory.SamplingProfile
Array of heap profile samples.static class
Memory.SamplingProfileNode
Heap profile sample.
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Field Summary
Memory Domain Enumerated String Types Modifier and Type Field static String[]
PressureLevel
Memory pressure level.
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Method Summary
Memory Domain Commands Script Returns Modifier and Type Method NONE ( void
)static Script<>
forciblyPurgeJavaScriptMemory()
Simulate OomIntervention by purging V8 memory.Memory.SamplingProfile
static Script<>
getAllTimeSamplingProfile()
Retrieve native memory allocations profile collected since renderer process startup.Memory.SamplingProfile
static Script<>
getBrowserSamplingProfile()
Retrieve native memory allocations profile collected since browser process startup.Ret3<Integer,
Integer,
Integer>static Script<>
getDOMCounters()
[No Description Provided by Google]
Memory.SamplingProfile
static Script<>
getSamplingProfile()
Retrieve native memory allocations profile collected since laststartSampling
call.NONE ( void
)static Script<>
prepareForLeakDetection()
[No Description Provided by Google]
NONE ( void
)static Script<>
setPressureNotificationsSuppressed(boolean suppressed)
Enable/disable suppressing memory pressure notifications in all processes.NONE ( void
)static Script<>
simulatePressureNotification(String level)
Simulate a memory pressure notification in all processes.NONE ( void
)static Script<>
startSampling(Integer samplingInterval, Boolean suppressRandomness)
Start collecting native memory profile.NONE ( void
)static Script<>
stopSampling()
Stop collecting native memory profile.
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Field Detail
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PressureLevel
public static final java.lang.String[] PressureLevel
Memory pressure level.
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Method Detail
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getDOMCounters
public static Script<java.lang.String,JsonObject,Ret3<java.lang.Integer,java.lang.Integer,java.lang.Integer>> getDOMCounters ()
[No Description Provided by Google]
- Returns:
- An instance of
Script
<String,JsonObject
,Ret3
>
ThisScript
may be executed (usingScript.exec()
), and aPromise
returned.
When thePromise
is awaited (usingPromise.await()
), theRet3
will subsequently be returned from that call.
The returned values are encapsulated in an instance ofRet3
Ret3.a: Integer (documents)
-Ret3.b: Integer (nodes)
-Ret3.c: Integer (jsEventListeners)
-
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prepareForLeakDetection
public static Script<java.lang.String,JsonObject,Ret0> prepareForLeakDetection ()
[No Description Provided by Google]
- Returns:
- An instance of
Script
<String,JsonObject
,Ret0
>
ThisScript
instance must be executed before the browser receives the invocation-request.
This Browser-Function does not have a return-value. You may choose to await thePromise
<JsonObject,
Ret0
>
to ensure the Browser Function has run to completion.
-
forciblyPurgeJavaScriptMemory
public static Script<java.lang.String,JsonObject,Ret0> forciblyPurgeJavaScriptMemory ()
Simulate OomIntervention by purging V8 memory.- Returns:
- An instance of
Script
<String,JsonObject
,Ret0
>
ThisScript
instance must be executed before the browser receives the invocation-request.
This Browser-Function does not have a return-value. You may choose to await thePromise
<JsonObject,
Ret0
>
to ensure the Browser Function has run to completion.
-
setPressureNotificationsSuppressed
public static Script<java.lang.String,JsonObject,Ret0> setPressureNotificationsSuppressed (boolean suppressed)
Enable/disable suppressing memory pressure notifications in all processes.- Parameters:
suppressed
- If true, memory pressure notifications will be suppressed.- Returns:
- An instance of
Script
<String,JsonObject
,Ret0
>
ThisScript
instance must be executed before the browser receives the invocation-request.
This Browser-Function does not have a return-value. You may choose to await thePromise
<JsonObject,
Ret0
>
to ensure the Browser Function has run to completion.
-
simulatePressureNotification
public static Script<java.lang.String,JsonObject,Ret0> simulatePressureNotification (java.lang.String level)
Simulate a memory pressure notification in all processes.- Parameters:
level
- Memory pressure level of the notification.- Returns:
- An instance of
Script
<String,JsonObject
,Ret0
>
ThisScript
instance must be executed before the browser receives the invocation-request.
This Browser-Function does not have a return-value. You may choose to await thePromise
<JsonObject,
Ret0
>
to ensure the Browser Function has run to completion.
-
startSampling
public static Script<java.lang.String,JsonObject,Ret0> startSampling (java.lang.Integer samplingInterval, java.lang.Boolean suppressRandomness)
Start collecting native memory profile.- Parameters:
samplingInterval
- Average number of bytes between samples.
OPTIONALsuppressRandomness
- Do not randomize intervals between samples.
OPTIONAL- Returns:
- An instance of
Script
<String,JsonObject
,Ret0
>
ThisScript
instance must be executed before the browser receives the invocation-request.
This Browser-Function does not have a return-value. You may choose to await thePromise
<JsonObject,
Ret0
>
to ensure the Browser Function has run to completion.
-
stopSampling
public static Script<java.lang.String,JsonObject,Ret0> stopSampling()
Stop collecting native memory profile.- Returns:
- An instance of
Script
<String,JsonObject
,Ret0
>
ThisScript
instance must be executed before the browser receives the invocation-request.
This Browser-Function does not have a return-value. You may choose to await thePromise
<JsonObject,
Ret0
>
to ensure the Browser Function has run to completion.
-
getAllTimeSamplingProfile
public static Script<java.lang.String,JsonObject,Memory.SamplingProfile> getAllTimeSamplingProfile ()
Retrieve native memory allocations profile collected since renderer process startup.- Returns:
- An instance of
Script
<String,JsonObject
,Memory.SamplingProfile
>
This script may be executed, usingScript.exec()
, and afterwards, aPromise
<JsonObject,
will be returned.Memory.SamplingProfile
>
Finally, thePromise
may be awaited, usingPromise.await()
, and the returned result of this Browser Function may may be retrieved.
This Browser Function returns
)Memory.SamplingProfile
(profile
-
-
getBrowserSamplingProfile
public static Script<java.lang.String,JsonObject,Memory.SamplingProfile> getBrowserSamplingProfile ()
Retrieve native memory allocations profile collected since browser process startup.- Returns:
- An instance of
Script
<String,JsonObject
,Memory.SamplingProfile
>
This script may be executed, usingScript.exec()
, and afterwards, aPromise
<JsonObject,
will be returned.Memory.SamplingProfile
>
Finally, thePromise
may be awaited, usingPromise.await()
, and the returned result of this Browser Function may may be retrieved.
This Browser Function returns
)Memory.SamplingProfile
(profile
-
-
getSamplingProfile
public static Script<java.lang.String,JsonObject,Memory.SamplingProfile> getSamplingProfile ()
Retrieve native memory allocations profile collected since laststartSampling
call.- Returns:
- An instance of
Script
<String,JsonObject
,Memory.SamplingProfile
>
This script may be executed, usingScript.exec()
, and afterwards, aPromise
<JsonObject,
will be returned.Memory.SamplingProfile
>
Finally, thePromise
may be awaited, usingPromise.await()
, and the returned result of this Browser Function may may be retrieved.
This Browser Function returns
)Memory.SamplingProfile
(profile
-
-
-