org.apache.camel.component.dozer

Class ExpressionMapper

java.lang.Object

org.apache.camel.component.dozer.BaseConverter

org.apache.camel.component.dozer.ExpressionMapper

All Implemented Interfaces:

org.dozer.ConfigurableCustomConverter, org.dozer.CustomConverter

public class ExpressionMapper
extends BaseConverter

Provides support for mapping a Camel expression to a target field in a mapping. Expressions have the following format:

[language]:[expression]

Constructor Summary

Constructors

Constructor and Description
ExpressionMapper()

Method Summary

Methods

Modifier and Type	Method and Description
Object	convert(Object existingDestinationFieldValue, Object sourceFieldValue, Class<?> destinationClass, Class<?> sourceClass)
String	getExpression() Used as the source field for Dozer mappings.
String	getExpressionPart() The actual expression, without the language prefix.
String	getLanguagePart() The expression language used for this mapping.
String	getPathPart() The path used for this mapping's resource file.
String	getSchemePart() The scheme used for this mapping's resource file (classpath, file, http).
protected InputStream	loadResource(String uri) Loads the given resource.
protected String	resolveScript(String script) Resolves the script.
void	setCurrentExchange(org.apache.camel.Exchange exchange) Sets the Camel exchange reference for this mapping.

Methods inherited from class org.apache.camel.component.dozer.BaseConverter

done, getParameter, setParameter

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionMapper

public ExpressionMapper()

Method Detail

convert

public Object convert(Object existingDestinationFieldValue,
             Object sourceFieldValue,
             Class<?> destinationClass,
             Class<?> sourceClass)

resolveScript

protected String resolveScript(String script)
                        throws IOException

Resolves the script.

Parameters:

script - script or uri for a script to load

Returns:

the script

Throws:

IOException - is thrown if error loading the script

loadResource

protected InputStream loadResource(String uri)
                            throws IOException

Loads the given resource.

Parameters:

uri - uri of the resource.

Returns:

the loaded resource

Throws:

IOException - is thrown if resource is not found or cannot be loaded

getExpression

public String getExpression()

Used as the source field for Dozer mappings.

getExpressionPart

public String getExpressionPart()

The actual expression, without the language prefix.

getLanguagePart

public String getLanguagePart()

The expression language used for this mapping.

setCurrentExchange

public void setCurrentExchange(org.apache.camel.Exchange exchange)

Sets the Camel exchange reference for this mapping. The exchange reference is stored in a thread-local which is cleaned up after the mapping has been performed via the done() method.

Parameters:

exchange -

getSchemePart

public String getSchemePart()

The scheme used for this mapping's resource file (classpath, file, http).

getPathPart

public String getPathPart()

The path used for this mapping's resource file.