com.predic8.membrane.core.interceptor.xmlcontentfilter

Class XMLContentFilterInterceptor

java.lang.Object

com.predic8.membrane.core.interceptor.AbstractInterceptor

com.predic8.membrane.core.interceptor.xmlcontentfilter.XMLContentFilterInterceptor

All Implemented Interfaces:

Interceptor

public class XMLContentFilterInterceptor
extends AbstractInterceptor

Description

The xmlContentFilter removes certain XML elements from message bodies. The elements are described using an XPath expression.

Explanation

If the XPath expression is simple enough, a StAX-Parser is used to determine whether the XPath might match a message at all. This can improve performance significantly, as a DOM tree does probably not have to to be constructed for every message. This is, for example, the case in

<xmlContentFilter xPath="//*[local-name()='Fault' and namespace-uri()='http://schemas.xmlsoap.org/soap/envelope/']//*[local-name()='stacktrace']" /> xmlContentFilter using a StAX-Parser for improved performance where the existence of the <Fault>-element is checked using the StAX-parser before the DOM is constructed.

If the message body is not well-formed XML, it is left unchanged. If the message is XOP-encoded, the XPath-expression is run on the reconstituted message; if it matches, the message is replaced by the modified reconstituted message.

Topic

3. Enterprise Integration Patterns

Nested Class Summary

Nested classes/interfaces inherited from interface com.predic8.membrane.core.interceptor.Interceptor

Interceptor.Flow

Field Summary

Fields inherited from class com.predic8.membrane.core.interceptor.AbstractInterceptor

id, name, router

Constructor Summary

Constructors

Constructor and Description
XMLContentFilterInterceptor()

Method Summary

Modifier and Type	Method and Description
String	getXPath()
Outcome	handleRequest(Exchange exc)
Outcome	handleResponse(Exchange exc)
void	setXPath(String xPath)

Methods inherited from class com.predic8.membrane.core.interceptor.AbstractInterceptor

getDisplayName, getFlow, getHelpId, getId, getLongDescription, getRouter, getRule, getShortDescription, handleAbort, init, init, setDisplayName, setFlow, setId

Methods inherited from class java.lang.Object

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

Constructor Detail

XMLContentFilterInterceptor

public XMLContentFilterInterceptor()

Method Detail

getXPath

public String getXPath()

setXPath

public void setXPath(String xPath)

Description

An XPath 1.0 expression describing the elements to be removed from message bodies.

handleRequest

public Outcome handleRequest(Exchange exc)
                      throws Exception

Specified by:

handleRequest in interface Interceptor

Overrides:

handleRequest in class AbstractInterceptor

Throws:

Exception

handleResponse

public Outcome handleResponse(Exchange exc)
                       throws Exception

Specified by:

handleResponse in interface Interceptor

Overrides:

handleResponse in class AbstractInterceptor

Throws:

Exception