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/**
*
* Copyright 2006 The Apache Software Foundation
*
* Licensed 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.tuscany.sca.binding.axis2;
import java.util.List;
import javax.wsdl.Binding;
import javax.wsdl.BindingOperation;
import javax.wsdl.Definition;
import javax.wsdl.extensions.soap.SOAPAddress;
import javax.wsdl.extensions.soap.SOAPOperation;
import javax.xml.namespace.QName;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.soap.SOAPFactory;
import org.apache.axis2.AxisFault;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.client.ServiceClient;
import org.apache.axis2.context.ConfigurationContext;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.transport.http.HTTPConstants;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager;
import org.apache.tuscany.sca.binding.ws.WebServiceBinding;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.apache.tuscany.sca.runtime.RuntimeComponentReference;
import org.apache.tuscany.sca.runtime.RuntimeWire;
public class Axis2ReferenceBindingProvider implements ReferenceBindingProvider {
private MessageFactory messageFactory;
private RuntimeComponent component;
private RuntimeComponentReference reference;
private WebServiceBinding wsBinding;
private ConfigurationContext configContext;
private ServiceClient serviceClient;
public Axis2ReferenceBindingProvider(RuntimeComponent component,
RuntimeComponentReference reference,
WebServiceBinding wsBinding,
MessageFactory messageFactory) {
this.component = component;
this.reference = reference;
this.wsBinding = wsBinding;
this.messageFactory = messageFactory;
try {
TuscanyAxisConfigurator tuscanyAxisConfigurator = new TuscanyAxisConfigurator();
configContext = tuscanyAxisConfigurator.getConfigurationContext();
} catch (AxisFault e) {
throw new RuntimeException(e); // TODO: better exception
}
initServiceClient();
}
// methods for ReferenceBindingActivator
public void initServiceClient() {
InterfaceContract contract = wsBinding.getBindingInterfaceContract();
if (contract == null) {
contract = reference.getInterfaceContract();
wsBinding.setBindingInterfaceContract(contract);
}
// Set to use the Axiom data binding
contract.getInterface().setDefaultDataBinding(OMElement.class.getName());
// ??? following line was in Axis2BindingBuilder before the SPI changes
// and code reorg
//
// URI targetURI = wsBinding.getURI() != null ?
// URI.create(wsBinding.getURI()) : URI.create("foo");
//
// targetURI was passed to the ReferenceBindingExtension constructor and
// apparently was unused
// Do we still need a targetURI?
// wsBinding.setURI(component.getURI() + "#" + reference.getName());
// create an Axis2 ServiceClient
serviceClient = createServiceClient();
}
public void start() {
}
public void stop() {
// close all connections that we have initiated, so that the jetty
// server
// can be restarted without seeing ConnectExceptions
HttpClient httpClient = (HttpClient)serviceClient.getServiceContext().getConfigurationContext()
.getProperty(HTTPConstants.CACHED_HTTP_CLIENT);
if (httpClient != null)
((MultiThreadedHttpConnectionManager)httpClient.getHttpConnectionManager()).shutdown();
}
/**
* Create an Axis2 ServiceClient
*/
protected ServiceClient createServiceClient() {
try {
QName serviceQName = wsBinding.getServiceName();
String portName = wsBinding.getPortName();
Definition wsdlDefinition = wsBinding.getWSDLDefinition().getDefinition();
AxisService axisService = AxisService.createClientSideAxisService(wsdlDefinition,
serviceQName,
portName,
new Options());
return new ServiceClient(configContext, axisService);
} catch (AxisFault e) {
throw new RuntimeException(e); // TODO: better exception
}
}
// methods for ReferenceBindingProvider
public InterfaceContract getBindingInterfaceContract() {
return wsBinding.getBindingInterfaceContract();
}
public Invoker createInvoker(Operation operation, boolean isCallback) {
Axis2BindingInvoker invoker;
InterfaceContract contract = wsBinding.getBindingInterfaceContract();
if (contract == null) {
contract = reference.getInterfaceContract();
wsBinding.setBindingInterfaceContract(contract);
}
if (wsBinding.getBindingInterfaceContract().getCallbackInterface() == null) {
invoker = createOperationInvoker(serviceClient, operation, false, operation.isNonBlocking());
} else {
// FIXME: SDODataBinding needs to pass in TypeHelper and classLoader
// as parameters.
// FIXME: This makes the (BIG) assumption that there is only one
// callback method
// Relaxing this assumption, however, does not seem to be trivial,
// it may depend on knowledge
// of what actual callback method was invoked by the service at the
// other end
RuntimeWire wire = reference.getRuntimeWire(wsBinding);
Operation callbackOperation = findCallbackOperation(wire);
Axis2CallbackInvocationHandler invocationHandler = new Axis2CallbackInvocationHandler(messageFactory, wire);
Axis2ReferenceCallbackTargetInvoker callbackInvoker = new Axis2ReferenceCallbackTargetInvoker(
callbackOperation,
wire,
invocationHandler);
Axis2AsyncBindingInvoker asyncInvoker = (Axis2AsyncBindingInvoker)createOperationInvoker(serviceClient,
operation,
true,
false);
asyncInvoker.setCallbackTargetInvoker(callbackInvoker);
invoker = asyncInvoker;
}
return invoker;
}
private Operation findCallbackOperation(RuntimeWire wire) {
InterfaceContract contract = wire.getTarget().getInterfaceContract(); // TODO:
// which
// end?
List callbackOperations = contract.getCallbackInterface().getOperations();
if (callbackOperations.size() != 1) {
throw new RuntimeException("Can only handle one callback operation");
}
Operation callbackOperation = (Operation)callbackOperations.get(0);
return callbackOperation;
}
/**
* Create and configure an Axis2BindingInvoker for each operation
*/
private Axis2BindingInvoker createOperationInvoker(ServiceClient serviceClient,
Operation operation,
boolean hasCallback,
boolean isOneWay) {
Options options = new Options();
options.setTo(getPortLocationEPR());
options.setProperty(HTTPConstants.CHUNKED, Boolean.FALSE);
String operationName = operation.getName();
String soapAction = getSOAPAction(operationName);
if (soapAction != null && soapAction.length() > 1) {
options.setAction(soapAction);
}
options.setTimeOutInMilliSeconds(30 * 1000); // 30 seconds
SOAPFactory soapFactory = OMAbstractFactory.getSOAP11Factory();
QName wsdlOperationQName = new QName(operationName);
Axis2BindingInvoker invoker;
if (hasCallback) {
invoker = new Axis2AsyncBindingInvoker(serviceClient, wsdlOperationQName, options, soapFactory);
} else if (isOneWay) {
invoker = new Axis2OneWayBindingInvoker(serviceClient, wsdlOperationQName, options, soapFactory);
} else {
invoker = new Axis2BindingInvoker(serviceClient, wsdlOperationQName, options, soapFactory);
}
return invoker;
}
protected EndpointReference getPortLocationEPR() {
String ep = wsBinding.getURI();
if (ep == null && wsBinding.getPort() != null) {
List wsdlPortExtensions = wsBinding.getPort().getExtensibilityElements();
for (final Object extension : wsdlPortExtensions) {
if (extension instanceof SOAPAddress) {
ep = ((SOAPAddress)extension).getLocationURI();
break;
}
}
}
return new EndpointReference(ep);
}
protected String getSOAPAction(String operationName) {
Binding binding = wsBinding.getBinding();
if (binding != null) {
for (Object o : binding.getBindingOperations()) {
BindingOperation bop = (BindingOperation)o;
if (bop.getName().equalsIgnoreCase(operationName)) {
for (Object o2 : bop.getExtensibilityElements()) {
if (o2 instanceof SOAPOperation) {
return ((SOAPOperation)o2).getSoapActionURI();
}
}
}
}
}
return null;
}
}
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