org.apache.camel.support
Class TokenXMLExpressionIterator

java.lang.Object
  org.apache.camel.support.ExpressionSupport
      org.apache.camel.support.ExpressionAdapter
          org.apache.camel.support.TokenXMLExpressionIterator

All Implemented Interfaces:

Expression, Predicate

public class TokenXMLExpressionIterator
extends ExpressionAdapter

Expression to walk a Message XML body using an Iterator, which grabs the content between a XML start and end token, where the end token corresponds implicitly to either the end tag or the self-closing start tag.

The message body must be able to convert to InputStream type which is used as stream to access the message body.

Can be used to split big XML files.

This implementation supports inheriting namespaces from a parent/root tag.

Field Summary

protected String	inheritNamespaceToken
protected String	tagToken

Constructor Summary

TokenXMLExpressionIterator(String tagToken, String inheritNamespaceToken)

Method Summary

protected Iterator<?>	createIterator(InputStream in, String charset)
protected Object	doEvaluate(Exchange exchange, boolean closeStream) Strategy to evaluate the exchange
Object	evaluate(Exchange exchange)
boolean	matches(Exchange exchange) Evaluates the predicate on the message exchange and returns true if this exchange matches the predicate

Methods inherited from class org.apache.camel.support.ExpressionAdapter

assertionFailureMessage, evaluate

Methods inherited from class org.apache.camel.support.ExpressionSupport

assertMatches

Methods inherited from class java.lang.Object

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

Field Detail

tagToken

protected final String tagToken

inheritNamespaceToken

protected final String inheritNamespaceToken

Constructor Detail

TokenXMLExpressionIterator

public TokenXMLExpressionIterator(String tagToken,
                                  String inheritNamespaceToken)

Method Detail

createIterator

protected Iterator<?> createIterator(InputStream in,
                                     String charset)

matches

public boolean matches(Exchange exchange)

Description copied from interface: Predicate

Evaluates the predicate on the message exchange and returns true if this exchange matches the predicate

Specified by:

matches in interface Predicate

Overrides:

matches in class ExpressionSupport

Parameters:

exchange - the message exchange

Returns:

true if the predicate matches

evaluate

public Object evaluate(Exchange exchange)

Overrides:

evaluate in class ExpressionSupport

doEvaluate

protected Object doEvaluate(Exchange exchange,
                            boolean closeStream)

Strategy to evaluate the exchange

Parameters:

exchange - the exchange

closeStream - whether to close the stream before returning from this method.

Returns:

the evaluated value