| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.synapse.config.xml; |
| |
| import org.apache.axiom.om.OMAttribute; |
| import org.apache.axiom.om.OMElement; |
| import org.apache.axiom.om.OMNode; |
| import org.apache.synapse.Mediator; |
| import org.apache.synapse.SynapseConstants; |
| import org.apache.synapse.SynapseException; |
| import org.apache.synapse.commons.util.PropertyHelper; |
| import org.apache.synapse.mediators.ext.ClassMediator; |
| |
| import javax.xml.namespace.QName; |
| import java.util.Iterator; |
| import java.util.Properties; |
| |
| /** |
| * Creates an instance of a Class mediator using XML configuration specified |
| * <p/> |
| * <pre> |
| * <class name="class-name"> |
| * <property name="string" value="literal"> |
| * either literal or XML child |
| * </property> |
| * </class> |
| * </pre> |
| */ |
| public class ClassMediatorFactory extends AbstractMediatorFactory { |
| |
| private static final QName CLASS_Q = new QName(XMLConfigConstants.SYNAPSE_NAMESPACE, "class"); |
| |
| public Mediator createSpecificMediator(OMElement elem, Properties properties) { |
| |
| ClassMediator classMediator = new ClassMediator(); |
| |
| OMAttribute name = elem.getAttribute(ATT_NAME); |
| if (name == null) { |
| String msg = "The name of the actual mediator class is a required attribute"; |
| log.error(msg); |
| throw new SynapseException(msg); |
| } |
| Class clazz = null; |
| Mediator m = null; |
| try { |
| ClassLoader classMediatorLoader = null; |
| if(properties != null){ |
| classMediatorLoader = (ClassLoader) properties.get(SynapseConstants.SYNAPSE_LIB_LOADER); |
| } |
| classMediatorLoader = classMediatorLoader != null ? classMediatorLoader : |
| getClass().getClassLoader(); |
| clazz = classMediatorLoader.loadClass( |
| name.getAttributeValue()); |
| m = (Mediator) clazz.newInstance(); |
| } catch (Exception e) { |
| String msg = "Error : " + name.getAttributeValue(); |
| log.error(msg, e); |
| throw new SynapseException(msg, e); |
| } |
| |
| for (Iterator it = elem.getChildrenWithName(PROP_Q); it.hasNext();) { |
| OMElement child = (OMElement) it.next(); |
| |
| String propName = child.getAttribute(ATT_NAME).getAttributeValue(); |
| if (propName == null) { |
| handleException( |
| "A Class mediator property must specify the name attribute"); |
| } else { |
| if (child.getAttribute(ATT_VALUE) != null) { |
| String value = child.getAttribute(ATT_VALUE).getAttributeValue(); |
| classMediator.addProperty(propName, value); |
| PropertyHelper.setInstanceProperty(propName, value, m); |
| } else { |
| OMNode omElt = child.getFirstElement(); |
| if (omElt != null) { |
| classMediator.addProperty(propName, omElt); |
| PropertyHelper.setInstanceProperty(propName, omElt, m); |
| } else { |
| handleException("A Class mediator property must specify " + |
| "name and value attributes, or a name and a child XML fragment"); |
| } |
| } |
| } |
| } |
| |
| // after successfully creating the mediator |
| // set its common attributes such as tracing etc |
| classMediator.setMediator(m); |
| processAuditStatus(classMediator, elem); |
| |
| return classMediator; |
| } |
| |
| public QName getTagQName() { |
| return CLASS_Q; |
| } |
| } |