/**
* 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.camel.component.cxf;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;
import javax.xml.namespace.QName;
import org.apache.camel.CamelException;
import org.apache.camel.Exchange;
import org.apache.camel.RuntimeCamelException;
import org.apache.camel.component.cxf.feature.MessageDataFormatFeature;
import org.apache.camel.component.cxf.feature.PayLoadDataFormatFeature;
import org.apache.camel.component.cxf.invoker.CxfClient;
import org.apache.camel.component.cxf.invoker.CxfClientFactoryBean;
import org.apache.camel.component.cxf.invoker.InvokingContext;
import org.apache.camel.component.cxf.invoker.InvokingContextFactory;
import org.apache.camel.component.cxf.util.CxfEndpointUtils;
import org.apache.camel.impl.DefaultProducer;
import org.apache.camel.util.ObjectHelper;
import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.bus.spring.SpringBusFactory;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.endpoint.Client;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.frontend.ClientProxy;
import org.apache.cxf.frontend.ClientProxyFactoryBean;
import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
import org.apache.cxf.message.ExchangeImpl;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageContentsList;
import org.apache.cxf.message.MessageImpl;
import org.apache.cxf.service.model.BindingOperationInfo;
/**
* Sends messages from Camel into the CXF endpoint
*
* @version $Revision: 908979 $
*/
public class CxfProducer extends DefaultProducer<CxfExchange> {
private static final Logger LOG = LogUtils.getL7dLogger(CxfProducer.class);
private CxfEndpoint endpoint;
private Client client;
private DataFormat dataFormat;
public CxfProducer(CxfEndpoint endpoint) throws Exception {
super(endpoint);
this.endpoint = endpoint;
dataFormat = CxfEndpointUtils.getDataFormat(endpoint);
if (dataFormat.equals(DataFormat.POJO)) {
client = createClientFromClientFactoryBean(null);
} else {
// Create CxfClient for message or payload type
client = createClientForStreamMessage();
}
}
private Client createClientForStreamMessage() throws Exception {
CxfClientFactoryBean cfb = new CxfClientFactoryBean();
Class serviceClass = null;
try {
serviceClass = CxfEndpointUtils.getServiceClass(endpoint);
} catch (ClassNotFoundException e) {
throw new CamelException(e);
}
boolean jsr181Enabled = CxfEndpointUtils.hasWebServiceAnnotation(serviceClass);
cfb.setJSR181Enabled(jsr181Enabled);
return createClientFromClientFactoryBean(jsr181Enabled ? new JaxWsProxyFactoryBean(cfb)
: new ClientProxyFactoryBean(cfb));
}
// If cfb is null, we will try to find the right cfb to use.
private Client createClientFromClientFactoryBean(ClientProxyFactoryBean cfb) throws Exception {
Class serviceClass = CxfEndpointUtils.getServiceClass(endpoint);
// We need to choose the right front end to create the clientFactoryBean
if (cfb == null) {
cfb = CxfEndpointUtils.getClientFactoryBean(serviceClass);
}
if (endpoint.isSpringContextEndpoint()) {
endpoint.configure(cfb);
} else { // set up the clientFactoryBean by using URI information
cfb.setAddress(endpoint.getAddress());
if (null != endpoint.getServiceClass()) {
cfb.setServiceClass(ObjectHelper.loadClass(endpoint.getServiceClass()));
}
if (null != endpoint.getWsdlURL()) {
cfb.setWsdlURL(endpoint.getWsdlURL());
}
if (endpoint.getWsdlURL() != null) {
cfb.setWsdlURL(endpoint.getWsdlURL());
}
}
cfb.setServiceClass(serviceClass);
if (CxfEndpointUtils.getServiceName(endpoint) != null) {
cfb.setServiceName(CxfEndpointUtils.getServiceName(endpoint));
}
if (CxfEndpointUtils.getPortName(endpoint) != null) {
cfb.setEndpointName(CxfEndpointUtils.getPortName(endpoint));
}
if (dataFormat.equals(DataFormat.MESSAGE)) {
cfb.getFeatures().add(new MessageDataFormatFeature());
} else if (dataFormat.equals(DataFormat.PAYLOAD)) {
cfb.getFeatures().add(new PayLoadDataFormatFeature());
}
cfb.setBus(endpoint.getBus());
return ((ClientProxy)Proxy.getInvocationHandler(cfb.create())).getClient();
}
public void process(Exchange exchange) throws Exception {
CxfExchange cxfExchange = endpoint.createExchange(exchange);
process(cxfExchange);
exchange.copyFrom(cxfExchange);
}
public void process(CxfExchange exchange) throws Exception {
Message inMessage = CxfBinding.createCxfMessage(endpoint.getHeaderFilterStrategy(), exchange);
exchange.setProperty(CxfConstants.DATA_FORMAT_PROPERTY, dataFormat);
if (dataFormat.equals(DataFormat.POJO)) {
// InputStream is = m.getContent(InputStream.class);
// now we just deal with the POJO invocations
List parameters = inMessage.getContent(List.class);
if (parameters == null) {
parameters = new ArrayList();
}
String operationName = exchange.getIn().getHeader(CxfConstants.OPERATION_NAME, String.class);
String operationNameSpace = exchange.getIn().getHeader(CxfConstants.OPERATION_NAMESPACE,
String.class);
// Get context from message
Map<String, Object> context = new HashMap<String, Object>();
Map<String, Object> responseContext = CxfBinding.propogateContext(exchange, context);
CxfBinding.relayRequestHeaders(endpoint, exchange, context);
Message response = new MessageImpl();
if (operationName != null) {
// we need to check out the operation Namespace
Object[] result = null;
// call for the client with the parameters
result = invokeClient(operationNameSpace, operationName, parameters, context);
if (result != null) {
response.setContent(List.class, new MessageContentsList(result));
} else {
response.setContent(List.class, new MessageContentsList());
}
// copy the response context to the response
CxfBinding.storeCXfResponseContext(response, responseContext);
CxfBinding.storeCxfResponse(endpoint.getHeaderFilterStrategy(), exchange, response);
CxfBinding.relayResponseHeaders(endpoint, exchange, context);
} else {
throw new RuntimeCamelException("Can't find the operation name in the message!");
}
} else {
// get the invocation context
org.apache.cxf.message.Exchange ex = exchange.getExchange();
if (ex == null) {
ex = (org.apache.cxf.message.Exchange)exchange.getProperty(CxfConstants.CXF_EXCHANGE);
exchange.setExchange(ex);
}
if (ex == null) {
ex = new ExchangeImpl();
exchange.setExchange(ex);
}
ObjectHelper.notNull(ex, "exchange");
InvokingContext invokingContext = ex.get(InvokingContext.class);
if (invokingContext == null) {
invokingContext = InvokingContextFactory.createContext(dataFormat);
ex.put(InvokingContext.class, invokingContext);
}
Map<Class, Object> params = invokingContext.getRequestContent(inMessage);
// invoke the stream message with the exchange context
CxfClient cxfClient = (CxfClient)client;
// need to get the BindingOperationInfo object to create the message
BindingOperationInfo boi = getBindingOperationInfo(exchange);
Message response = null;
if (boi == null) {
// it should be the raw message
response = new MessageImpl();
} else {
// create the message here
Endpoint ep = ex.get(Endpoint.class);
response = ep.getBinding().createMessage();
// set the BindingOperationInfo object here
ex.put(BindingOperationInfo.class, boi);
}
response.setExchange(ex);
// invoke the message prepare the context
Map<String, Object> context = new HashMap<String, Object>();
Map<String, Object> responseContext = CxfBinding.propogateContext(exchange, context);
Object result = cxfClient.dispatch(params, context, ex);
ex.setOutMessage(response);
invokingContext.setResponseContent(response, result);
// copy the response context to the response
CxfBinding.storeCXfResponseContext(response, responseContext);
CxfBinding.storeCxfResponse(endpoint.getHeaderFilterStrategy(), exchange, response);
}
}
private BindingOperationInfo getBindingOperationInfo(CxfExchange ex) {
BindingOperationInfo answer = null;
String lp = ex.getIn().getHeader(CxfConstants.OPERATION_NAME, String.class);
if (lp == null) {
// try to get the BindingOperationInfo from cxfExchange
// make sure the old cxf payload code still working
LOG.fine("Try get the BindingOperationInfo from cxfExchange.");
org.apache.cxf.message.Exchange cxfExchange = ex.getExchange();
answer = cxfExchange.get(BindingOperationInfo.class);
} else {
String ns = ex.getIn().getHeader(CxfConstants.OPERATION_NAMESPACE, String.class);
if (ns == null) {
ns = client.getEndpoint().getService().getName().getNamespaceURI();
LOG.finer("Operation namespace not in header. Set it to: " + ns);
}
QName qname = new QName(ns, lp);
LOG.finer("Operation qname = " + qname.toString());
answer = client.getEndpoint().getEndpointInfo().getBinding().getOperation(qname);
}
return answer;
}
@Override
protected void doStart() throws Exception {
super.doStart();
}
@Override
protected void doStop() throws Exception {
super.doStop();
}
private Object[] invokeClient(String operationNameSpace, String operationName, List parameters,
Map<String, Object> context) throws Exception {
QName operationQName = null;
if (operationNameSpace == null) {
operationQName = new QName(client.getEndpoint().getService().getName().getNamespaceURI(),
operationName);
} else {
operationQName = new QName(operationNameSpace, operationName);
}
BindingOperationInfo op = client.getEndpoint().getEndpointInfo().getBinding()
.getOperation(operationQName);
if (op == null) {
throw new RuntimeCamelException("No operation found in the CXF client, the operation is "
+ operationQName);
}
if (!endpoint.isWrapped()) {
if (op.isUnwrappedCapable()) {
op = op.getUnwrappedOperation();
}
}
Object[] result = client.invoke(op, parameters.toArray(), context);
return result;
}
public Client getClient() {
return client;
}
}