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/*
* 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.tuscany.binding.celtix;
import java.io.IOException;
import java.lang.reflect.Array;
import java.lang.reflect.InvocationTargetException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import javax.jws.WebParam;
import javax.wsdl.Binding;
import javax.wsdl.Definition;
import javax.wsdl.Port;
import javax.wsdl.Service;
import javax.wsdl.WSDLException;
import javax.wsdl.extensions.ExtensibilityElement;
import javax.wsdl.extensions.soap.SOAPAddress;
import javax.xml.namespace.QName;
import javax.xml.ws.Holder;
import org.apache.tuscany.spi.builder.BuilderException;
import org.apache.tuscany.spi.wire.Interceptor;
import org.apache.tuscany.spi.wire.Message;
import org.apache.tuscany.spi.wire.TargetInvoker;
import commonj.sdo.helper.TypeHelper;
import org.apache.tuscany.binding.celtix.io.SCADataBindingCallback;
import org.objectweb.celtix.Bus;
import org.objectweb.celtix.BusException;
import org.objectweb.celtix.bindings.ClientBinding;
import org.objectweb.celtix.bindings.DataBindingCallback;
import org.objectweb.celtix.bus.bindings.WSDLMetaDataCache;
import org.objectweb.celtix.bus.bindings.WSDLOperationInfo;
import org.objectweb.celtix.context.ObjectMessageContext;
import org.objectweb.celtix.ws.addressing.EndpointReferenceType;
import org.objectweb.celtix.wsdl.EndpointReferenceUtils;
import org.xmlsoap.schemas.wsdl.http.AddressType;
/**
* Responsible for dispatching a service operation invocation on a reference to the active Celtix <code>Bus</code>
*
* @version $Rev$ $Date$
*/
public class CeltixInvoker implements TargetInvoker {
private WSDLMetaDataCache wsdlCache;
private ClientBinding clientBinding;
private String operationName;
private TypeHelper typeHelper;
public CeltixInvoker(String operationName,
Bus bus,
Port port,
Service wsdlService,
Definition wsdlDef,
TypeHelper theTypeHelper) throws BuilderException {
this.wsdlCache = new WSDLMetaDataCache(wsdlDef, port);
this.operationName = operationName;
this.typeHelper = theTypeHelper;
// Definition wsdlDef = wsBinding.getWSDLDefinition();
// wsdlCache = new WSDLMetaDataCache(wsdlDef, wsBinding.getWSDLPort());
try {
String key = wsdlDef.getDocumentBaseURI();
URL url = new URL(key);
QName qName = wsdlService.getQName();
EndpointReferenceType reference = EndpointReferenceUtils.getEndpointReference(url, qName, port.getName());
String bindingId = null;
Binding binding = port.getBinding();
if (null != binding) {
List list = binding.getExtensibilityElements();
if (!list.isEmpty()) {
bindingId = ((ExtensibilityElement) list.get(0)).getElementType().getNamespaceURI();
}
}
if (bindingId == null) {
List<?> list = port.getExtensibilityElements();
for (Object ep : list) {
ExtensibilityElement ext = (ExtensibilityElement) ep;
if (ext instanceof SOAPAddress) {
bindingId = ((SOAPAddress) ext).getLocationURI();
}
if (ext instanceof AddressType) {
bindingId = ((AddressType) ext).getLocation();
}
}
}
clientBinding = bus.getBindingManager().getBindingFactory(bindingId).createClientBinding(reference);
} catch (MalformedURLException e) {
throw new InvokerCreationException(e);
} catch (BusException e) {
throw new InvokerCreationException(e);
} catch (WSDLException e) {
throw new InvokerCreationException(e);
} catch (IOException e) {
throw new InvokerCreationException(e);
}
}
/**
* Invoke an operation on the external Web service.
*
* @param args the Java object arguments to the WS operation
* @return the response from the WS as a Java object
*/
public Object invokeTarget(final Object args, final short sequence) throws InvocationTargetException {
WSDLOperationInfo opInfo = wsdlCache.getOperationInfo(operationName);
if (opInfo == null) {
// REVISIT - really map the operation name to a WSDL operation
for (String opName : wsdlCache.getAllOperationInfo().keySet()) {
if (operationName.equalsIgnoreCase(opName)) {
opInfo = wsdlCache.getOperationInfo(opName);
break;
}
}
}
ObjectMessageContext objMsgContext = clientBinding.createObjectContext();
boolean hasInOut = false;
int inOutCount = 0;
Object realArgs[];
Object argsArray[];
if (args.getClass().isArray()) {
argsArray = (Object[]) args;
realArgs = new Object[Array.getLength(args)];
} else {
argsArray = new Object[0];
realArgs = new Object[0];
}
if (opInfo.getParamsLength() == 0) {
// REVISIT - opInfo doesn't return the needed info for the wrapped doc/lit case.
// Bug in Celtix
realArgs = argsArray;
} else {
for (int x = 0; x < argsArray.length; x++) {
if (opInfo.getWebParam(x).mode() == WebParam.Mode.IN) {
realArgs[x] = argsArray[x];
} else {
realArgs[x] = new Holder<Object>(argsArray[x]);
inOutCount++;
hasInOut = true;
}
}
}
objMsgContext.setMessageObjects(realArgs);
boolean isOneway = opInfo.isOneWay();
DataBindingCallback callback = new SCADataBindingCallback(opInfo, hasInOut, typeHelper);
try {
if (isOneway) {
clientBinding.invokeOneWay(objMsgContext, callback);
} else {
objMsgContext = clientBinding.invoke(objMsgContext, callback);
}
} catch (IOException e) {
throw new InvocationTargetException(e);
}
if (objMsgContext.getException() != null) {
// REVISIT - Exceptions
/*
* if (isValidException(objMsgContext)) { throw
* (Exception)objMsgContext.getException(); } else { throw new
* ProtocolException(objMsgContext.getException()); }
*/
throw new InvocationTargetException(objMsgContext.getException());
}
if (hasInOut) {
Object ret[] = new Object[inOutCount + 1];
ret[0] = objMsgContext.getReturn();
inOutCount = 1;
for (int x = 0; x < argsArray.length; x++) {
if (opInfo.getWebParam(x).mode() != WebParam.Mode.IN) {
Holder<?> holder = (Holder<?>) realArgs[x];
ret[inOutCount] = holder.value;
inOutCount++;
}
}
return ret;
}
return objMsgContext.getReturn();
}
public Message invoke(Message msg) {
try {
Object resp = invokeTarget(msg.getBody(), TargetInvoker.NONE);
msg.setBody(resp);
} catch (Throwable e) {
msg.setBodyWithFault(e);
}
return msg;
}
public void setNext(Interceptor next) {
throw new UnsupportedOperationException();
}
public CeltixInvoker clone() throws CloneNotSupportedException {
try {
return (CeltixInvoker) super.clone();
} catch (CloneNotSupportedException e) {
// will not happen
return null;
}
}
public boolean isCacheable() {
return true;
}
public void setCacheable(boolean cacheable) {
}
public boolean isOptimizable() {
return false;
}
}
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