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.servicemix.jbi.framework.support;
018
019 import javax.xml.namespace.QName;
020
021 import org.w3c.dom.Document;
022
023 import org.apache.commons.logging.Log;
024 import org.apache.commons.logging.LogFactory;
025 import org.apache.servicemix.jbi.framework.Registry;
026 import org.apache.servicemix.jbi.servicedesc.InternalEndpoint;
027 import org.apache.woden.WSDLReader;
028 import org.apache.woden.internal.DOMWSDLReader;
029 import org.apache.woden.internal.DOMWSDLSource;
030 import org.apache.woden.types.NCName;
031 import org.apache.woden.wsdl20.Description;
032 import org.apache.woden.wsdl20.Endpoint;
033 import org.apache.woden.wsdl20.Interface;
034 import org.apache.woden.wsdl20.Service;
035 import org.apache.woden.wsdl20.xml.DescriptionElement;
036
037 /**
038 * Retrieve interface implemented by the given endpoint using the WSDL 2 description.
039 *
040 * @author gnodet
041 */
042 public class WSDL2Processor implements EndpointProcessor {
043
044 public static final String WSDL2_NAMESPACE = "http://www.w3.org/2006/01/wsdl";
045
046 private static final Log LOG = LogFactory.getLog(WSDL2Processor.class);
047
048 private Registry registry;
049
050 public void init(Registry reg) {
051 this.registry = reg;
052 }
053
054 /**
055 * Retrieve interface implemented by the given endpoint using the WSDL 2 description.
056 *
057 * @param serviceEndpoint the endpoint being checked
058 */
059 public void process(InternalEndpoint serviceEndpoint) {
060 try {
061 Document document = registry.getEndpointDescriptor(serviceEndpoint);
062 if (document == null || document.getDocumentElement() == null) {
063 if (LOG.isDebugEnabled()) {
064 LOG.debug("Endpoint " + serviceEndpoint + " has no service description");
065 }
066 return;
067 }
068 if (!WSDL2_NAMESPACE.equals(document.getDocumentElement().getNamespaceURI())) {
069 if (LOG.isDebugEnabled()) {
070 LOG.debug("Endpoint " + serviceEndpoint + " has a non WSDL2 service description");
071 }
072 return;
073 }
074 WSDLReader reader = new DOMWSDLReader();
075 DOMWSDLSource source = (DOMWSDLSource) reader.createWSDLSource();
076 source.setSource(document);
077 DescriptionElement descElement = reader.readWSDL(source);
078 Description desc = descElement.toComponent();
079 // Check if the wsdl is only a port type
080 // In these cases, only the port type is used, as the service name and endpoint name
081 // are provided on the jbi endpoint
082 if (desc.getInterfaces().length == 1 && desc.getServices().length == 0) {
083 Interface itf = desc.getInterfaces()[0];
084 QName interfaceName = itf.getName();
085 if (LOG.isDebugEnabled()) {
086 LOG.debug("Endpoint " + serviceEndpoint + " implements interface " + interfaceName);
087 }
088 serviceEndpoint.addInterface(interfaceName);
089 } else {
090 Service service = desc.getService(serviceEndpoint.getServiceName());
091 if (service == null) {
092 LOG.info("Endpoint " + serviceEndpoint + " has a service description, but no matching service found in "
093 + desc.getServices());
094 return;
095 }
096 Endpoint endpoint = service.getEndpoint(new NCName(serviceEndpoint.getEndpointName()));
097 if (endpoint == null) {
098 LOG.info("Endpoint " + serviceEndpoint + " has a service description, but no matching endpoint found in "
099 + service.getEndpoints());
100 return;
101 }
102 if (endpoint.getBinding() == null) {
103 LOG.info("Endpoint " + serviceEndpoint + " has a service description, but no binding found");
104 return;
105 }
106 if (endpoint.getBinding().getInterface() == null) {
107 LOG.info("Endpoint " + serviceEndpoint + " has a service description, but no port type found");
108 return;
109 }
110 QName interfaceName = endpoint.getBinding().getInterface().getName();
111 if (LOG.isDebugEnabled()) {
112 LOG.debug("Endpoint " + serviceEndpoint + " implements interface " + interfaceName);
113 }
114 serviceEndpoint.addInterface(interfaceName);
115 }
116 } catch (Exception e) {
117 LOG.warn("Error retrieving interfaces from service description: " + e.getMessage());
118 if (LOG.isDebugEnabled()) {
119 LOG.debug("Error retrieving interfaces from service description", e);
120 }
121 }
122 }
123 }