org.apache.camel.support
Class TokenPairExpressionIterator

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

All Implemented Interfaces:

Expression, Predicate

Direct Known Subclasses:

TokenXMLPairExpressionIterator

public class TokenPairExpressionIterator
extends ExpressionAdapter

Expression to walk a Message body using an Iterator, which grabs the content between a start and end token.

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

For splitting XML files use TokenXMLExpressionIterator instead.

Field Summary

protected String	endToken
protected boolean	includeTokens
protected String	startToken

Constructor Summary

TokenPairExpressionIterator(String startToken, String endToken, boolean includeTokens)

Method Summary

protected Iterator<?>	createIterator(InputStream in, String charset) Strategy to create the iterator
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
String	toString()

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, wait, wait, wait

Field Detail

startToken

protected final String startToken

endToken

protected final String endToken

includeTokens

protected final boolean includeTokens

Constructor Detail

TokenPairExpressionIterator

public TokenPairExpressionIterator(String startToken,
                                   String endToken,
                                   boolean includeTokens)

Method Detail

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

createIterator

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

Strategy to create the iterator

Parameters:

in - input stream to iterate

charset - charset

Returns:

the iterator

toString

public String toString()

Overrides:

toString in class Object