org.apache.servicemix.expression
Class JaxenXPathExpression

java.lang.Object
  org.apache.servicemix.expression.JaxenXPathExpression

All Implemented Interfaces:

Expression, org.springframework.beans.factory.InitializingBean

Direct Known Subclasses:

JaxenStringXPathExpression

public class JaxenXPathExpression
extends java.lang.Object
implements Expression, org.springframework.beans.factory.InitializingBean

Evalutes an XPath expression on the given message using Jaxen

Version:

$Revision: 564900 $

Constructor Summary

JaxenXPathExpression()

JaxenXPathExpression(java.lang.String xpath)
A helper constructor to make a fully created expression.

Method Summary

void	afterPropertiesSet()
protected org.jaxen.XPath	createXPath(java.lang.String xp)
void	enableContentRereadability(javax.jbi.messaging.NormalizedMessage message) Convert the given NormalizedMessage instance's content to a re-readable Source This allows the content to be read more than once (e.g.
java.lang.Object	evaluate(javax.jbi.messaging.MessageExchange exchange, javax.jbi.messaging.NormalizedMessage message) Evaluates the expression on the given exchange and message.
protected java.lang.Object	evaluateXPath(java.lang.Object object)
protected boolean	evaluateXPathAsBoolean(java.lang.Object object)
org.jaxen.FunctionContext	getFunctionContext()
org.jaxen.NamespaceContext	getNamespaceContext()
SourceTransformer	getTransformer()
JaxenVariableContext	getVariableContext()
protected java.lang.Object	getXMLNode(javax.jbi.messaging.MessageExchange exchange, javax.jbi.messaging.NormalizedMessage message)
java.lang.String	getXpath()
org.jaxen.XPath	getXpathObject()
boolean	isUseMessageContent()
boolean	matches(javax.jbi.messaging.MessageExchange exchange, javax.jbi.messaging.NormalizedMessage message)
void	setFunctionContext(org.jaxen.FunctionContext functionContext)
void	setNamespaceContext(org.jaxen.NamespaceContext namespaceContext)
void	setTransformer(SourceTransformer transformer)
void	setUseMessageContent(boolean useMessageContent) Specifies whether or not the XPath expression uses the message content.
void	setVariableContext(JaxenVariableContext variableContext)
void	setXpath(java.lang.String xpath)
void	setXpathObject(org.jaxen.XPath xpathObject)

Methods inherited from class java.lang.Object

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

Constructor Detail

JaxenXPathExpression

public JaxenXPathExpression()

JaxenXPathExpression

public JaxenXPathExpression(java.lang.String xpath)
                     throws java.lang.Exception

A helper constructor to make a fully created expression. This constructor will call the afterPropertiesSet() method to ensure this POJO is properly constructed.

Throws:

java.lang.Exception

Method Detail

afterPropertiesSet

public void afterPropertiesSet()
                        throws java.lang.Exception

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

Throws:

java.lang.Exception

evaluate

public java.lang.Object evaluate(javax.jbi.messaging.MessageExchange exchange,
                                 javax.jbi.messaging.NormalizedMessage message)
                          throws javax.jbi.messaging.MessagingException

Description copied from interface: Expression

Evaluates the expression on the given exchange and message.

Specified by:

evaluate in interface Expression

Parameters:

exchange - the message exchange

message - the message, typically an inbound message

Returns:

the value of the expression

Throws:

javax.jbi.messaging.MessagingException

matches

public boolean matches(javax.jbi.messaging.MessageExchange exchange,
                       javax.jbi.messaging.NormalizedMessage message)
                throws javax.jbi.messaging.MessagingException

Throws:

javax.jbi.messaging.MessagingException

getXpathObject

public org.jaxen.XPath getXpathObject()

setXpathObject

public void setXpathObject(org.jaxen.XPath xpathObject)

getXpath

public java.lang.String getXpath()

setXpath

public void setXpath(java.lang.String xpath)

isUseMessageContent

public boolean isUseMessageContent()

setUseMessageContent

public void setUseMessageContent(boolean useMessageContent)

Specifies whether or not the XPath expression uses the message content. By default, this property is true, but you can set it to false to avoid that the message content is converted to StringSource

Parameters:

useMessageContent - specify false if this expression does not access the message content

getTransformer

public SourceTransformer getTransformer()

setTransformer

public void setTransformer(SourceTransformer transformer)

getVariableContext

public JaxenVariableContext getVariableContext()

setVariableContext

public void setVariableContext(JaxenVariableContext variableContext)

getNamespaceContext

public org.jaxen.NamespaceContext getNamespaceContext()

setNamespaceContext

public void setNamespaceContext(org.jaxen.NamespaceContext namespaceContext)

getFunctionContext

public org.jaxen.FunctionContext getFunctionContext()

setFunctionContext

public void setFunctionContext(org.jaxen.FunctionContext functionContext)

createXPath

protected final org.jaxen.XPath createXPath(java.lang.String xp)
                                     throws org.jaxen.JaxenException

Throws:

org.jaxen.JaxenException

evaluateXPath

protected java.lang.Object evaluateXPath(java.lang.Object object)
                                  throws org.jaxen.JaxenException

Throws:

org.jaxen.JaxenException

evaluateXPathAsBoolean

protected boolean evaluateXPathAsBoolean(java.lang.Object object)
                                  throws org.jaxen.JaxenException

Throws:

org.jaxen.JaxenException

getXMLNode

protected java.lang.Object getXMLNode(javax.jbi.messaging.MessageExchange exchange,
                                      javax.jbi.messaging.NormalizedMessage message)
                               throws javax.xml.transform.TransformerException,
                                      javax.jbi.messaging.MessagingException,
                                      javax.xml.parsers.ParserConfigurationException,
                                      java.io.IOException,
                                      org.xml.sax.SAXException

Throws:

javax.xml.transform.TransformerException

javax.jbi.messaging.MessagingException

javax.xml.parsers.ParserConfigurationException

java.io.IOException

org.xml.sax.SAXException

enableContentRereadability

public void enableContentRereadability(javax.jbi.messaging.NormalizedMessage message)
                                throws javax.jbi.messaging.MessagingException

Convert the given NormalizedMessage instance's content to a re-readable Source This allows the content to be read more than once (e.g. for XPath evaluation or auditing).

Parameters:

message - the NormalizedMessage to convert the content for

Throws:

javax.jbi.messaging.MessagingException