net.sf.sasl.language.placeholder.aop.resolver
Class ThreadPlaceholderResolver

java.lang.Object
  net.sf.sasl.language.placeholder.aop.resolver.ThreadPlaceholderResolver

All Implemented Interfaces:

IPlaceholderResolver

public class ThreadPlaceholderResolver
extends Object
implements IPlaceholderResolver

The Placeholder resolver offers placeholder to get access to thread statistics.
curThreadId
Returns the thread id the placeholder script interpreter is running at.
curThreadName
Returns the thread name the placeholder script interpreter is running at.
totalThreadCount
Returns the estimated number of threads currently running in the jvm process

Since:

0.0.1 (sasl-common-aspect-library)

Author:

Philipp Förmer

Constructor Summary

ThreadPlaceholderResolver()

Method Summary

Set<String>	getResolveablePlaceholders() Returns a set of all placeholder procedures names that can be resolved by the placeholder.
Object	resolve(String placeholderName, Object[] placeholderArguments, IEnvironment environment) Resolves the given placeholder under the passed interpreter environment.

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadPlaceholderResolver

public ThreadPlaceholderResolver()

Method Detail

getResolveablePlaceholders

public Set<String> getResolveablePlaceholders()

Description copied from interface: IPlaceholderResolver

Returns a set of all placeholder procedures names that can be resolved by the placeholder.

Specified by:

getResolveablePlaceholders in interface IPlaceholderResolver

Returns:

non null.

See Also:

IPlaceholderResolver.getResolveablePlaceholders()

resolve

public Object resolve(String placeholderName,
                      Object[] placeholderArguments,
                      IEnvironment environment)
               throws ResolveException

Description copied from interface: IPlaceholderResolver

Resolves the given placeholder under the passed interpreter environment. The placeholderArguments are static defined (in a placeholder script) or dynamic created parameters (by other placeholder calls) that are passed to the placeholder as procedure arguments.
The resolve method is only invoked for placeholders that the resolver defines that he offers them (IPlaceholderResolver.getResolveablePlaceholders()).

Specified by:

resolve in interface IPlaceholderResolver

Parameters:

placeholderName - non null.

placeholderArguments - non null.

environment - non null

Returns:

null or non null.

Throws:

ResolveException - if the placeholder could not get resolved, for example because the parameters mismatch, or the resolution is only successful for a specific target method execution phase.

See Also:

IPlaceholderResolver.resolve(java.lang.String, java.lang.Object[], net.sf.sasl.language.placeholder.aop.interpreter.IEnvironment)