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

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

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

Method Summary

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