/*
* 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.endpoints.utils;
import org.apache.axiom.om.OMElement;
import org.apache.axis2.util.XMLUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.synapse.SynapseConstants;
import org.apache.synapse.SynapseException;
import org.apache.synapse.endpoints.EndpointDefinition;
import org.apache.synapse.util.resolver.CustomWSDLLocator;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import javax.wsdl.*;
import javax.wsdl.extensions.soap.SOAPAddress;
import javax.wsdl.extensions.soap12.SOAP12Address;
import javax.wsdl.extensions.http.HTTPAddress;
import javax.wsdl.extensions.http.HTTPBinding;
import javax.wsdl.factory.WSDLFactory;
import javax.wsdl.xml.WSDLLocator;
import javax.wsdl.xml.WSDLReader;
import javax.xml.namespace.QName;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.stream.XMLStreamException;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
/**
* Builds the EndpointDefinition containing the details for an epr using a WSDL 1.1 document.
*/
public class WSDL11EndpointBuilder {
private static Log log = LogFactory.getLog(WSDL11EndpointBuilder.class);
/**
* Creates an EndpointDefinition for WSDL endpoint from an inline WSDL supplied in the WSDL
* endpoint configuration.
*
* @param endpointDefinition the endpoint definition to populate
* @param baseUri base uri of the wsdl
* @param wsdl OMElement representing the inline WSDL
* @param service Service of the endpoint
* @param port Port of the endpoint
* @return EndpointDefinition containing the information retrieved from the WSDL
*/
public EndpointDefinition populateEndpointDefinitionFromWSDL(
EndpointDefinition endpointDefinition,
String baseUri, OMElement wsdl,
String service, String port) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
wsdl.serialize(baos);
InputStream in = new ByteArrayInputStream(baos.toByteArray());
InputSource inputSource = new InputSource(in);
WSDLLocator wsdlLocator = new CustomWSDLLocator(inputSource, baseUri);
Document doc = null;
try {
doc = XMLUtils.newDocument(inputSource);
} catch (ParserConfigurationException e) {
handleException("Parser Configuration Error", e);
} catch (SAXException e) {
handleException("Parser SAX Error", e);
} catch (IOException e) {
handleException(WSDLException.INVALID_WSDL + "IO Error", e);
}
if (doc != null) {
WSDLFactory fac = WSDLFactory.newInstance();
WSDLReader reader = fac.newWSDLReader();
Definition definition = reader.readWSDL(wsdlLocator, doc.getDocumentElement());
return createEndpointDefinitionFromWSDL(
endpointDefinition, definition, service, port);
}
} catch (XMLStreamException e) {
handleException("Error retrieving the WSDL definition from the inline WSDL.", e);
} catch (WSDLException e) {
handleException("Error retrieving the WSDL definition from the inline WSDL.", e);
}
return null;
}
private EndpointDefinition createEndpointDefinitionFromWSDL(
EndpointDefinition endpointDefinition,
Definition definition,
String serviceName, String portName) {
if (definition == null) {
handleException("WSDL document is not specified.");
}
if (serviceName == null) {
handleException("Service name of the WSDL document is not specified.");
}
if (portName == null) {
handleException("Port name of the WSDL document is not specified.");
}
String serviceURL = null;
// get soap version from wsdl port and update endpoint definition below
// so that correct soap version is used when endpoint is called
String format = null;
assert definition != null;
String tns = definition.getTargetNamespace();
Service service = definition.getService(new QName(tns, serviceName));
if (service != null) {
Port port = service.getPort(portName);
if (port != null) {
for (Object obj : port.getExtensibilityElements()) {
if (obj instanceof SOAPAddress) {
SOAPAddress address = (SOAPAddress) obj;
serviceURL = address.getLocationURI();
format = SynapseConstants.FORMAT_SOAP11;
break;
} else if (obj instanceof SOAP12Address) {
SOAP12Address address = (SOAP12Address) obj;
serviceURL = address.getLocationURI();
format = SynapseConstants.FORMAT_SOAP12;
break;
} else if (obj instanceof HTTPAddress) {
HTTPAddress address = (HTTPAddress) obj;
serviceURL = address.getLocationURI();
format = SynapseConstants.FORMAT_REST;
Binding binding = port.getBinding();
if (binding == null) {
continue;
}
for (Object portElement : binding.getExtensibilityElements()) {
if (portElement instanceof HTTPBinding) {
HTTPBinding httpBinding = (HTTPBinding) portElement;
String verb = httpBinding.getVerb();
if (verb == null || "".equals(verb)) {
continue;
}
if ("POST".equals(verb.toUpperCase())) {
format = SynapseConstants.FORMAT_REST;
} else if ("GET".equals(verb.toUpperCase())) {
format = SynapseConstants.FORMAT_GET;
}
}
}
}
}
}
}
if (serviceURL != null) {
endpointDefinition.setAddress(serviceURL);
if (SynapseConstants.FORMAT_SOAP11.equals(format)) {
endpointDefinition.setForceSOAP11(true);
} else if (SynapseConstants.FORMAT_SOAP12.equals(format)) {
endpointDefinition.setForceSOAP12(true);
} else if (SynapseConstants.FORMAT_REST.equals(format)){
endpointDefinition.setForceREST(true);
} else if (SynapseConstants.FORMAT_GET.equals(format)){
endpointDefinition.setForceGET(true);
} else {
handleException("format value '" + format + "' not yet implemented");
}
endpointDefinition.setFormat(format);
// todo: determine this using wsdl and policy
return endpointDefinition;
} else {
handleException("Couldn't retrieve endpoint information from the WSDL.");
}
return null;
}
private static void handleException(String msg) {
log.error(msg);
throw new SynapseException(msg);
}
private static void handleException(String msg, Exception e) {
log.error(msg, e);
throw new SynapseException(msg, e);
}
}