/**
*
* 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.openejb.server.cxf.ejb;
import org.apache.cxf.Bus;
import org.apache.cxf.binding.soap.SoapMessage;
import org.apache.cxf.binding.soap.interceptor.MustUnderstandInterceptor;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.interceptor.AbstractInDatabindingInterceptor;
import org.apache.cxf.interceptor.Interceptor;
import org.apache.cxf.interceptor.InterceptorChain;
import org.apache.cxf.interceptor.OutgoingChainInterceptor;
import org.apache.cxf.interceptor.ServiceInvokerInterceptor;
import org.apache.cxf.jaxws.handler.logical.LogicalHandlerInInterceptor;
import org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor;
import org.apache.cxf.jaxws.interceptors.HolderInInterceptor;
import org.apache.cxf.jaxws.interceptors.WrapperClassInInterceptor;
import org.apache.cxf.jaxws.support.JaxWsEndpointImpl;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.PhaseInterceptorChain;
import org.apache.cxf.phase.PhaseManager;
import org.apache.cxf.service.Service;
import org.apache.cxf.staxutils.StaxUtils;
import org.apache.openejb.server.ServerRuntimeException;
import org.apache.openejb.util.LogCategory;
import org.apache.openejb.util.Logger;
import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;
import javax.xml.soap.SOAPMessage;
import javax.xml.stream.XMLStreamReader;
import javax.xml.transform.dom.DOMSource;
import javax.xml.ws.Binding;
import java.lang.reflect.Method;
import java.util.List;
public class EjbInterceptor {
private static final Logger log = Logger.getInstance(LogCategory.CXF, EjbInterceptor.class);
private Exchange exchange;
private Bus bus;
private List<Object> params;
private Method method;
public EjbInterceptor(final List<Object> params, final Method method, final Bus bus, final Exchange exchange) {
this.params = params;
this.method = method;
this.bus = bus;
this.exchange = exchange;
}
private static void copyDataBindingInterceptors(final PhaseInterceptorChain newChain, final InterceptorChain oldChain) {
for (final Interceptor interceptor : oldChain) {
if (interceptor instanceof AbstractInDatabindingInterceptor) {
log.debug("Added data binding interceptor: " + interceptor);
newChain.add(interceptor);
}
}
}
@AroundInvoke
public Object intercept(final InvocationContext context) throws Exception {
final Endpoint endpoint = this.exchange.get(Endpoint.class);
final Service service = endpoint.getService();
final Binding binding = ((JaxWsEndpointImpl) endpoint).getJaxwsBinding();
this.exchange.put(InvocationContext.class, context);
if (binding.getHandlerChain() == null || binding.getHandlerChain().isEmpty()) {
// no handlers so let's just directly invoke the bean
log.debug("No handlers found.");
final EjbMethodInvoker invoker = (EjbMethodInvoker) service.getInvoker();
return invoker.directEjbInvoke(this.exchange, this.method, this.params);
} else {
// have handlers so have to run handlers now and redo data binding
// as handlers can change the soap message
log.debug("Handlers found.");
final Message inMessage = exchange.getInMessage();
final PhaseInterceptorChain chain = new PhaseInterceptorChain(bus.getExtension(PhaseManager.class).getInPhases());
chain.setFaultObserver(endpoint.getOutFaultObserver());
/*
* Since we have to re-do data binding and the XMLStreamReader
* contents are already consumed by prior data binding step
* we have to reinitialize the XMLStreamReader from the SOAPMessage
* created by SAAJInInterceptor.
*/
if (inMessage instanceof SoapMessage) {
try {
reserialize((SoapMessage) inMessage);
} catch (final Exception e) {
throw new ServerRuntimeException("Failed to reserialize soap message", e);
}
} else {
// TODO: how to handle XML/HTTP binding?
}
this.exchange.setOutMessage(null);
// install default interceptors
chain.add(new ServiceInvokerInterceptor());
chain.add(new OutgoingChainInterceptor());
// See http://cwiki.apache.org/CXF20DOC/interceptors.html
// install Holder and Wrapper interceptors
chain.add(new WrapperClassInInterceptor());
chain.add(new HolderInInterceptor());
// install interceptors for handler processing
chain.add(new MustUnderstandInterceptor());
chain.add(new LogicalHandlerInInterceptor(binding));
chain.add(new SOAPHandlerInterceptor(binding));
// install data binding interceptors
copyDataBindingInterceptors(chain, inMessage.getInterceptorChain());
final InterceptorChain oldChain = inMessage.getInterceptorChain();
inMessage.setInterceptorChain(chain);
try {
chain.doIntercept(inMessage);
} finally {
inMessage.setInterceptorChain(oldChain);
}
// TODO: the result should be deserialized from SOAPMessage
final Object result = getResult();
return result;
}
}
private Object getResult() {
final Message outMessage = this.exchange.getOutMessage();
if (outMessage == null) {
return null;
} else {
final List<?> result = outMessage.getContent(List.class);
if (result == null) {
return outMessage.get(Object.class);
} else if (result.isEmpty()) {
return null;
} else {
return result.get(0);
}
}
}
private void reserialize(final SoapMessage message) throws Exception {
final SOAPMessage soapMessage = message.getContent(SOAPMessage.class);
if (soapMessage == null) {
return;
}
final DOMSource bodySource = new DOMSource(soapMessage.getSOAPPart());
final XMLStreamReader xmlReader = StaxUtils.createXMLStreamReader(bodySource);
message.setContent(XMLStreamReader.class, xmlReader);
}
}