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Apache CXF example source code file (JaxWsClientProxy.java)

This example Apache CXF source code file (JaxWsClientProxy.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Apache CXF tags/keywords

asynchandler, binding, exception, io, log, map, map, net, network, node, object, object, reflection, soapfault, soapfault, string, throwable, throwable, webserviceexception, xml

The Apache CXF JaxWsClientProxy.java source code

/**
 * 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.cxf.jaxws;

import java.io.IOException;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.HttpURLConnection;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.Future;
import java.util.logging.Logger;

import javax.xml.soap.SOAPConstants;
import javax.xml.soap.SOAPException;
import javax.xml.soap.SOAPFactory;
import javax.xml.soap.SOAPFault;
import javax.xml.ws.AsyncHandler;
import javax.xml.ws.Binding;
import javax.xml.ws.BindingProvider;
import javax.xml.ws.EndpointReference;
import javax.xml.ws.Response;
import javax.xml.ws.WebServiceException;
import javax.xml.ws.handler.MessageContext.Scope;
import javax.xml.ws.http.HTTPBinding;
import javax.xml.ws.http.HTTPException;
import javax.xml.ws.soap.SOAPBinding;
import javax.xml.ws.soap.SOAPFaultException;

import org.w3c.dom.Node;

import org.apache.cxf.binding.soap.SoapFault;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.endpoint.Client;
import org.apache.cxf.endpoint.ClientCallback;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.frontend.MethodDispatcher;
import org.apache.cxf.helpers.CastUtils;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.jaxws.context.WrappedMessageContext;
import org.apache.cxf.jaxws.support.JaxWsEndpointImpl;
import org.apache.cxf.service.model.BindingOperationInfo;

public class JaxWsClientProxy extends org.apache.cxf.frontend.ClientProxy implements
    InvocationHandler, BindingProvider {

    public static final String THREAD_LOCAL_REQUEST_CONTEXT = "thread.local.request.context";
    
    private static final Logger LOG = LogUtils.getL7dLogger(JaxWsClientProxy.class);

    private final Binding binding;
    private final EndpointReferenceBuilder builder;

    public JaxWsClientProxy(Client c, Binding b) {
        super(c);
        this.binding = b;
        setupEndpointAddressContext(getClient().getEndpoint());
        this.builder = new EndpointReferenceBuilder((JaxWsEndpointImpl)getClient().getEndpoint());
    }

    private void setupEndpointAddressContext(Endpoint endpoint) {
        // NOTE for jms transport the address would be null
        if (null != endpoint && null != endpoint.getEndpointInfo().getAddress()) {
            getRequestContext().put(BindingProvider.ENDPOINT_ADDRESS_PROPERTY, 
                                      endpoint.getEndpointInfo().getAddress());
        }
    }

    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {

        Endpoint endpoint = getClient().getEndpoint();
        String address = endpoint.getEndpointInfo().getAddress();
        MethodDispatcher dispatcher = (MethodDispatcher)endpoint.getService().get(
                                                                                  MethodDispatcher.class
                                                                                      .getName());
        Object[] params = args;
        if (null == params) {
            params = new Object[0];
        }        
        
        BindingOperationInfo oi = dispatcher.getBindingOperation(method, endpoint);
        if (oi == null) {
            // check for method on BindingProvider and Object
            if (method.getDeclaringClass().equals(BindingProvider.class)
                || method.getDeclaringClass().equals(Object.class)) {
                try {
                    return method.invoke(this, params);
                } catch (InvocationTargetException e) {
                    throw e.fillInStackTrace().getCause();
                }
            }

            Message msg = new Message("NO_BINDING_OPERATION_INFO", LOG, method.getName());
            throw new WebServiceException(msg.toString());
        }

        client.getRequestContext().put(Method.class.getName(), method);
        boolean isAsync = isAsync(method);

        Object result = null;
        try {
            if (isAsync) {
                result = invokeAsync(method, oi, params);
            } else {
                result = invokeSync(method, oi, params);
            }
        } catch (WebServiceException wex) {
            throw wex.fillInStackTrace();
        } catch (Exception ex) {
            for (Class<?> excls : method.getExceptionTypes()) {
                if (excls.isInstance(ex)) {
                    throw ex.fillInStackTrace();
                }
            }
            if (ex instanceof Fault && ex.getCause() instanceof IOException) {
                throw new WebServiceException(ex.getMessage(), ex.getCause());
            }
            if (getBinding() instanceof HTTPBinding) {
                HTTPException exception = new HTTPException(HttpURLConnection.HTTP_INTERNAL_ERROR);
                exception.initCause(ex);
                throw exception;
            } else if (getBinding() instanceof SOAPBinding) {
                SOAPFault soapFault = createSoapFault((SOAPBinding)getBinding(), ex);
                if (soapFault == null) {
                    throw new WebServiceException(ex);
                }
                SOAPFaultException  exception = new SOAPFaultException(soapFault);
                if (ex instanceof Fault && ex.getCause() != null) {
                    exception.initCause(ex.getCause());
                } else {
                    exception.initCause(ex);
                }
                throw exception;                
            } else {
                throw new WebServiceException(ex);
            }
        } finally {
            if (addressChanged(address)) {
                setupEndpointAddressContext(getClient().getEndpoint());
            }
        }
        
        Map<String, Object> respContext = client.getResponseContext();
        Map<String, Scope> scopes = CastUtils.cast((Map)respContext.get(WrappedMessageContext.SCOPES));
        if (scopes != null) {
            for (Map.Entry<String, Scope> scope : scopes.entrySet()) {
                if (scope.getValue() == Scope.HANDLER) {
                    respContext.remove(scope.getKey());
                }
            }
        }
        return result;

    }
    boolean isAsync(Method m) {
        return m.getName().endsWith("Async")
            && (Future.class.equals(m.getReturnType()) 
                || Response.class.equals(m.getReturnType()));
    }
    
    static SOAPFault createSoapFault(SOAPBinding binding, Exception ex) throws SOAPException {
        SOAPFault soapFault;
        try {
            soapFault = binding.getSOAPFactory().createFault();
        } catch (Throwable t) {
            //probably an old version of saaj or something that is not allowing createFault 
            //method to work.  Try the saaj 1.2 method of doing this.
            try {
                soapFault = binding.getMessageFactory().createMessage()
                    .getSOAPBody().addFault();
            } catch (Throwable t2) {
                //still didn't work, we'll just throw what we have
                return null;
            }                        
        }
        
        if (ex instanceof SoapFault) {
            if (!soapFault.getNamespaceURI().equals(((SoapFault)ex).getFaultCode().getNamespaceURI())
                && SOAPConstants.URI_NS_SOAP_1_1_ENVELOPE
                    .equals(((SoapFault)ex).getFaultCode().getNamespaceURI())) {
                //change to 1.1
                try {
                    soapFault = SOAPFactory.newInstance().createFault();
                } catch (Throwable t) {
                    //ignore
                }
            }
            soapFault.setFaultString(((SoapFault)ex).getReason());
            soapFault.setFaultCode(((SoapFault)ex).getFaultCode());
            soapFault.setFaultActor(((SoapFault)ex).getRole());

            if (((SoapFault)ex).hasDetails()) {
                Node nd = soapFault.getOwnerDocument().importNode(((SoapFault)ex).getDetail(),
                                                                  true);
                nd = nd.getFirstChild();
                soapFault.addDetail();
                while (nd != null) {
                    Node next = nd.getNextSibling();
                    soapFault.getDetail().appendChild(nd);
                    nd = next;
                }
            }
        } else {
            String msg = ex.getMessage();
            if (msg != null) {
                soapFault.setFaultString(msg);
            }
        }      
        return soapFault;
    }

    private boolean addressChanged(String address) {
        return !(address == null
                 || getClient().getEndpoint().getEndpointInfo() == null
                 || address.equals(getClient().getEndpoint().getEndpointInfo().getAddress()));
    }

    @SuppressWarnings("unchecked")
    private Object invokeAsync(Method method, BindingOperationInfo oi, Object[] params) throws Exception {

        client.setExecutor(getClient().getEndpoint().getExecutor());
        
        AsyncHandler<Object> handler;
        if (params.length > 0 && params[params.length - 1] instanceof AsyncHandler) {
            handler = (AsyncHandler)params[params.length - 1];
        } else {
            handler = null;
        }
        ClientCallback callback = new JaxwsClientCallback(handler);
             
        Response<Object> ret = new JaxwsResponseCallback(callback);
        client.invoke(callback, oi, params);
        return ret;
    }

    public Map<String, Object> getRequestContext() {
        return new WrappedMessageContext(this.getClient().getRequestContext(),
                                         null,
                                         Scope.APPLICATION);
    }
    public Map<String, Object> getResponseContext() {
        return new WrappedMessageContext(this.getClient().getResponseContext(),
                                                          null,
                                                          Scope.APPLICATION);
    }

    public Binding getBinding() {
        return binding;
    }

    public EndpointReference getEndpointReference() {
        return builder.getEndpointReference();
    }

    public <T extends EndpointReference> T getEndpointReference(Class clazz) {
        return builder.getEndpointReference(clazz);
    }    
}

Other Apache CXF examples (source code examples)

Here is a short list of links related to this Apache CXF JaxWsClientProxy.java source code file:

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