org.springframework.integration.scripting
Class AbstractScriptExecutingMessageProcessor<T>

java.lang.Object
  org.springframework.integration.scripting.AbstractScriptExecutingMessageProcessor<T>

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanClassLoaderAware, org.springframework.beans.factory.BeanFactoryAware, MessageProcessor<T>

Direct Known Subclasses:

GroovyCommandMessageProcessor, GroovyScriptExecutingMessageProcessor, ScriptExecutingMessageProcessor

public abstract class AbstractScriptExecutingMessageProcessor<T>
extends java.lang.Object
implements MessageProcessor<T>, org.springframework.beans.factory.BeanClassLoaderAware, org.springframework.beans.factory.BeanFactoryAware

Base MessageProcessor for scripting implementations to extend.

Since:

2.0

Author:

Mark Fisher, Stefan Reuter

Constructor Summary

protected	AbstractScriptExecutingMessageProcessor()
protected	AbstractScriptExecutingMessageProcessor(ScriptVariableGenerator scriptVariableGenerator)

Method Summary

protected abstract T	executeScript(org.springframework.scripting.ScriptSource scriptSource, java.util.Map<java.lang.String,java.lang.Object> variables) Subclasses must implement this method.
protected java.lang.ClassLoader	getBeanClassLoader()
protected org.springframework.beans.factory.BeanFactory	getBeanFactory()
protected abstract org.springframework.scripting.ScriptSource	getScriptSource(Message<?> message) Subclasses must implement this method to create a script source, optionally using the message to locate or create the script.
T	processMessage(Message<?> message) Executes the script and returns the result.
void	setBeanClassLoader(java.lang.ClassLoader classLoader)
void	setBeanFactory(org.springframework.beans.factory.BeanFactory beanFactory)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractScriptExecutingMessageProcessor

protected AbstractScriptExecutingMessageProcessor()

AbstractScriptExecutingMessageProcessor

protected AbstractScriptExecutingMessageProcessor(ScriptVariableGenerator scriptVariableGenerator)

Method Detail

processMessage

public final T processMessage(Message<?> message)

Executes the script and returns the result.

Specified by:

processMessage in interface MessageProcessor<T>

setBeanClassLoader

public void setBeanClassLoader(java.lang.ClassLoader classLoader)

Specified by:

setBeanClassLoader in interface org.springframework.beans.factory.BeanClassLoaderAware

getBeanClassLoader

protected java.lang.ClassLoader getBeanClassLoader()

setBeanFactory

public void setBeanFactory(org.springframework.beans.factory.BeanFactory beanFactory)
                    throws org.springframework.beans.BeansException

Specified by:

setBeanFactory in interface org.springframework.beans.factory.BeanFactoryAware

Throws:

org.springframework.beans.BeansException

getBeanFactory

protected org.springframework.beans.factory.BeanFactory getBeanFactory()

getScriptSource

protected abstract org.springframework.scripting.ScriptSource getScriptSource(Message<?> message)

Subclasses must implement this method to create a script source, optionally using the message to locate or create the script.

Parameters:

message - the message being processed

Returns:

a ScriptSource to use to create a script

executeScript

protected abstract T executeScript(org.springframework.scripting.ScriptSource scriptSource,
                                   java.util.Map<java.lang.String,java.lang.Object> variables)
                            throws java.lang.Exception

Subclasses must implement this method. In doing so, the execution context for the script should be populated with the provided script variables.

Throws:

java.lang.Exception