com.googlecode.jslint4java

Class TimeLimitedContextFactory

java.lang.Object

org.mozilla.javascript.ContextFactory

com.googlecode.jslint4java.TimeLimitedContextFactory

public class TimeLimitedContextFactory
extends org.mozilla.javascript.ContextFactory

A ContextFactory that allows specification of a timeout. This is mostly copied from the example in the ContextFactory javadocs.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TimeLimitedContextFactory.TimeExceededException

Nested classes/interfaces inherited from class org.mozilla.javascript.ContextFactory

org.mozilla.javascript.ContextFactory.GlobalSetter, org.mozilla.javascript.ContextFactory.Listener

Constructor Summary

Constructors

Constructor and Description
TimeLimitedContextFactory(long maxTime, TimeUnit timeUnit) Create a new TimeLimitedContextFactory.

Method Summary

Methods

Modifier and Type	Method and Description
protected Object	doTopCall(org.mozilla.javascript.Callable callable, org.mozilla.javascript.Context cx, org.mozilla.javascript.Scriptable scope, org.mozilla.javascript.Scriptable thisObj, Object[] args) Record start time in context.
protected org.mozilla.javascript.Context	makeContext() Create a TimeLimitedContext that runs the observer every 10k ops.
protected void	observeInstructionCount(org.mozilla.javascript.Context cx, int instructionCount) Enforce time restrictions.

Methods inherited from class org.mozilla.javascript.ContextFactory

addListener, call, checkNotSealed, createClassLoader, enter, enterContext, enterContext, exit, getApplicationClassLoader, getE4xImplementationFactory, getGlobal, getGlobalSetter, hasExplicitGlobal, hasFeature, initApplicationClassLoader, initGlobal, isSealed, onContextCreated, onContextReleased, removeListener, seal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TimeLimitedContextFactory

public TimeLimitedContextFactory(long maxTime,
                         TimeUnit timeUnit)

Create a new TimeLimitedContextFactory.

Parameters:

maxTime - the maximum amount of time that a JavaScript execution is allowed to take.

timeUnit - the unit of maxTime.

Method Detail

makeContext

protected org.mozilla.javascript.Context makeContext()

Create a TimeLimitedContext that runs the observer every 10k ops.

Overrides:

makeContext in class org.mozilla.javascript.ContextFactory

doTopCall

protected Object doTopCall(org.mozilla.javascript.Callable callable,
               org.mozilla.javascript.Context cx,
               org.mozilla.javascript.Scriptable scope,
               org.mozilla.javascript.Scriptable thisObj,
               Object[] args)

Record start time in context.

Overrides:

doTopCall in class org.mozilla.javascript.ContextFactory

observeInstructionCount

protected void observeInstructionCount(org.mozilla.javascript.Context cx,
                           int instructionCount)

Enforce time restrictions.

Overrides:

observeInstructionCount in class org.mozilla.javascript.ContextFactory