Package org.apache.camel.component.xslt

Class XsltAggregationStrategy

java.lang.Object

org.apache.camel.support.service.BaseService

org.apache.camel.support.service.ServiceSupport

org.apache.camel.component.xslt.XsltAggregationStrategy

All Implemented Interfaces:

AutoCloseable, org.apache.camel.AggregationStrategy, org.apache.camel.CamelContextAware, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.StatefulService, org.apache.camel.SuspendableService

public class XsltAggregationStrategy
extends org.apache.camel.support.service.ServiceSupport
implements org.apache.camel.AggregationStrategy, org.apache.camel.CamelContextAware

The XSLT Aggregation Strategy enables you to use XSL stylesheets to aggregate messages.

Since XSLT does not directly support providing multiple XML payloads as an input, this aggregator injects the new incoming XML document (newExchange) into the oldExchange as an exchange property of type Document. The old exchange therefore remains accessible as the root context. This exchange property can then be accessed from your XSLT by declaring an <xsl:param /> at the top of your stylesheet: The exchange property name defaults to new-exchange but can be changed through setPropertyName(String).

Some code bits have been copied from the XsltEndpoint.

Field Summary

Fields inherited from class org.apache.camel.support.service.BaseService

BUILT, FAILED, INITIALIZED, INITIALIZING, lock, NEW, SHUTDOWN, SHUTTING_DOWN, STARTED, STARTING, status, STOPPED, STOPPING, SUSPENDED, SUSPENDING

Constructor Summary

Constructors

Constructor	Description
XsltAggregationStrategy(String xslFileLocation)	Constructor.

Method Summary

Modifier and Type	Method	Description
org.apache.camel.Exchange	aggregate(org.apache.camel.Exchange oldExchange, org.apache.camel.Exchange newExchange)
protected void	configureOutput(XsltBuilder xslt, String output)
static XsltAggregationStrategy	create(String xslFile)
protected XsltBuilder	createXsltBuilder()
protected void	doInit()
protected void	doStart()
protected void	doStop()
org.apache.camel.CamelContext	getCamelContext()
String	getPropertyName()
protected void	loadResource(String resourceUri)	Loads the resource.
void	setCamelContext(org.apache.camel.CamelContext camelContext)
void	setOutput(XsltOutput output)
void	setPropertyName(String propertyName)
void	setTransformerFactory(TransformerFactory transformerFactory)
void	setTransformerFactoryClass(String transformerFactoryClass)
void	setUriResolver(URIResolver uriResolver)
void	setXslt(XsltBuilder xslt)
XsltAggregationStrategy	withOutput(XsltOutput output)
XsltAggregationStrategy	withPropertyName(String propertyName)
XsltAggregationStrategy	withTransformerFactoryClass(String clazz)
XsltAggregationStrategy	withUriResolver(URIResolver resolver)

Methods inherited from class org.apache.camel.support.service.BaseService

build, doBuild, doFail, doLifecycleChange, doResume, doShutdown, doSuspend, fail, getStatus, init, isBuild, isInit, isNew, isRunAllowed, isShutdown, isStarted, isStarting, isStartingOrStarted, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, isSuspendingOrSuspended, resume, shutdown, start, stop, suspend

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.camel.AggregationStrategy

aggregate, canPreComplete, onCompletion, onOptimisticLockFailure, preComplete, timeout

Methods inherited from interface org.apache.camel.Service

build, close, init, start, stop

Methods inherited from interface org.apache.camel.ShutdownableService

shutdown

Methods inherited from interface org.apache.camel.StatefulService

getStatus, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isSuspending

Methods inherited from interface org.apache.camel.SuspendableService

isSuspended, resume, suspend

Constructor Detail

XsltAggregationStrategy

public XsltAggregationStrategy(String xslFileLocation)

Constructor.

Parameters:

xslFileLocation - location of the XSL transformation

Method Detail

getCamelContext

public org.apache.camel.CamelContext getCamelContext()

Specified by:

getCamelContext in interface org.apache.camel.CamelContextAware

setCamelContext

public void setCamelContext(org.apache.camel.CamelContext camelContext)

Specified by:

setCamelContext in interface org.apache.camel.CamelContextAware

aggregate

public org.apache.camel.Exchange aggregate(org.apache.camel.Exchange oldExchange,
                                           org.apache.camel.Exchange newExchange)

Specified by:

aggregate in interface org.apache.camel.AggregationStrategy

setOutput

public void setOutput(XsltOutput output)

setXslt

public void setXslt(XsltBuilder xslt)

setUriResolver

public void setUriResolver(URIResolver uriResolver)

setTransformerFactoryClass

public void setTransformerFactoryClass(String transformerFactoryClass)

setTransformerFactory

public void setTransformerFactory(TransformerFactory transformerFactory)

getPropertyName

public String getPropertyName()

setPropertyName

public void setPropertyName(String propertyName)

configureOutput

protected void configureOutput(XsltBuilder xslt,
                               String output)
                        throws Exception

Throws:

Exception

loadResource

protected void loadResource(String resourceUri)
                     throws TransformerException,
                            IOException

Loads the resource.

Parameters:

resourceUri - the resource to load

Throws:

TransformerException - is thrown if error loading resource

IOException - is thrown if error loading resource

create

public static XsltAggregationStrategy create(String xslFile)

withPropertyName

public XsltAggregationStrategy withPropertyName(String propertyName)

withOutput

public XsltAggregationStrategy withOutput(XsltOutput output)

withUriResolver

public XsltAggregationStrategy withUriResolver(URIResolver resolver)

withTransformerFactoryClass

public XsltAggregationStrategy withTransformerFactoryClass(String clazz)

createXsltBuilder

protected XsltBuilder createXsltBuilder()

doInit

protected void doInit()
               throws Exception

Overrides:

doInit in class org.apache.camel.support.service.BaseService

Throws:

Exception

doStart

protected void doStart()
                throws Exception

Overrides:

doStart in class org.apache.camel.support.service.BaseService

Throws:

Exception

doStop

protected void doStop()
               throws Exception

Overrides:

doStop in class org.apache.camel.support.service.BaseService

Throws:

Exception