001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.component.xslt; 018 019 import java.util.Map; 020 021 import javax.xml.transform.TransformerFactory; 022 023 import org.apache.camel.Endpoint; 024 import org.apache.camel.Exchange; 025 import org.apache.camel.builder.xml.XsltBuilder; 026 import org.apache.camel.component.ResourceBasedComponent; 027 import org.apache.camel.converter.jaxp.XmlConverter; 028 import org.apache.camel.impl.ProcessorEndpoint; 029 import org.apache.camel.util.ObjectHelper; 030 import org.springframework.core.io.Resource; 031 032 /** 033 * An <a href="http://activemq.apache.org/camel/xslt.html">XSLT Component</a> 034 * for performing XSLT transforms of messages 035 * 036 * @version $Revision: 2252 $ 037 */ 038 public class XsltComponent extends ResourceBasedComponent { 039 private XmlConverter xmlConverter; 040 041 public XmlConverter getXmlConverter() { 042 return xmlConverter; 043 } 044 045 public void setXmlConverter(XmlConverter xmlConverter) { 046 this.xmlConverter = xmlConverter; 047 } 048 049 protected Endpoint<Exchange> createEndpoint(String uri, String remaining, Map parameters) throws Exception { 050 Resource resource = resolveMandatoryResource(remaining); 051 if (log.isDebugEnabled()) { 052 log.debug(this + " using schema resource: " + resource); 053 } 054 XsltBuilder xslt = newInstance(XsltBuilder.class); 055 056 // lets allow the converter to be configured 057 XmlConverter converter = null; 058 String converterName = getAndRemoveParameter(parameters, "converter", String.class); 059 if (converterName != null) { 060 converter = mandatoryLookup(converterName, XmlConverter.class); 061 } 062 if (converter == null) { 063 converter = getXmlConverter(); 064 } 065 if (converter != null) { 066 xslt.setConverter(converter); 067 } 068 069 String transformerFactoryClassName = getAndRemoveParameter(parameters, "transformerFactoryClass", String.class); 070 TransformerFactory factory = null; 071 if (transformerFactoryClassName != null) { 072 Class factoryClass = ObjectHelper.loadClass(transformerFactoryClassName); 073 if (factoryClass != null) { 074 factory = (TransformerFactory) newInstance(factoryClass); 075 } else { 076 log.warn("Can't find the TransformerFactoryClass with the class name " + transformerFactoryClassName); 077 } 078 } 079 080 String transformerFactoryName = getAndRemoveParameter(parameters, "transformerFactory", String.class); 081 if (transformerFactoryName != null) { 082 factory = mandatoryLookup(transformerFactoryName, TransformerFactory.class); 083 } 084 085 if (factory != null) { 086 xslt.getConverter().setTransformerFactory(factory); 087 } 088 xslt.setTransformerInputStream(resource.getInputStream()); 089 configureXslt(xslt, uri, remaining, parameters); 090 return new ProcessorEndpoint(uri, this, xslt); 091 } 092 093 protected void configureXslt(XsltBuilder xslt, String uri, String remaining, Map parameters) throws Exception { 094 setProperties(xslt, parameters); 095 } 096 }