Apache CXF example source code file (WrappedInInterceptor.java)

This example Apache CXF source code file (WrappedInInterceptor.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

bindingoperationinfo, http, log, log, logging, messagecontentslist, messageinfo, messageinfo, net, network, qname, qname, serviceinfo, string, string, uri, util, wrappedininterceptor, wrappedininterceptor

The Apache CXF WrappedInInterceptor.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.interceptor;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Logger;

import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamReader;

import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.databinding.DataReader;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageContentsList;
import org.apache.cxf.phase.Phase;
import org.apache.cxf.service.model.BindingOperationInfo;
import org.apache.cxf.service.model.EndpointInfo;
import org.apache.cxf.service.model.MessageInfo;
import org.apache.cxf.service.model.MessagePartInfo;
import org.apache.cxf.service.model.OperationInfo;
import org.apache.cxf.service.model.ServiceInfo;
import org.apache.cxf.service.model.ServiceModelUtil;
import org.apache.cxf.staxutils.DepthXMLStreamReader;
import org.apache.cxf.staxutils.StaxUtils;

public class WrappedInInterceptor extends AbstractInDatabindingInterceptor {
    private static final Logger LOG = LogUtils.getL7dLogger(WrappedInInterceptor.class);

    public WrappedInInterceptor() {
        super(Phase.UNMARSHAL);
        addAfter(URIMappingInterceptor.class.getName());
    }

    public void handleMessage(Message message) {
        if (isGET(message) && message.getContent(List.class) != null) {
            LOG.fine("WrappedInInterceptor skipped in HTTP GET method");
            return;
        }
        
        DepthXMLStreamReader xmlReader = getXMLStreamReader(message);

        // Trying to find the operation name from the XML.
        if (!StaxUtils.toNextElement(xmlReader)) {
            // body may be empty for partial response to decoupled request
            return;
        }

        BindingOperationInfo operation = message.getExchange().get(BindingOperationInfo.class);
        boolean requestor = isRequestor(message);

        if (operation == null) {
            String local = xmlReader.getLocalName();
            if (requestor && local.endsWith("Response")) {
                local = local.substring(0, local.length() - 8);
            }

            // TODO: Allow overridden methods.
            operation = ServiceModelUtil.getOperation(message.getExchange(), local);
            if (operation == null) {
                throw new Fault(new org.apache.cxf.common.i18n.Message("NO_OPERATION", LOG, local),
                                Fault.FAULT_CODE_CLIENT);
            }

        }

        ServiceInfo si = operation.getBinding().getService();

        DataReader<XMLStreamReader> dr = getDataReader(message);
        MessageContentsList objects = new MessageContentsList();

        MessageInfo msgInfo = setMessage(message, operation, requestor, si);
        
        // Determine if there is a wrapper class
        if (operation.isUnwrappedCapable()
            && msgInfo.getMessageParts().get(0).getTypeClass() != null) {
            Object wrappedObject = dr.read(msgInfo.getMessageParts().get(0), xmlReader);
            objects.put(msgInfo.getMessageParts().get(0), wrappedObject);

        } else {
            // Unwrap each part individually if we don't have a wrapper

            if (operation.isUnwrappedCapable()) {
                operation = operation.getUnwrappedOperation();
            }

            msgInfo = setMessage(message, operation, requestor, si);
            List<MessagePartInfo> messageParts = msgInfo.getMessageParts();
            Iterator<MessagePartInfo> itr = messageParts.iterator();

            // advance just past the wrapped element so we don't get stuck
            if (xmlReader.getEventType() == XMLStreamConstants.START_ELEMENT) {
                StaxUtils.nextEvent(xmlReader);
            }

            // loop through each child element
            while (StaxUtils.toNextElement(xmlReader)) {
                MessagePartInfo part = itr.next();
                objects.put(part, dr.read(part, xmlReader));
            }
        }

        message.setContent(List.class, objects);
    }

    private MessageInfo setMessage(Message message, BindingOperationInfo operation,
                                   boolean requestor, ServiceInfo si) {
        MessageInfo msgInfo = getMessageInfo(message, operation, requestor);
        message.put(MessageInfo.class, msgInfo);

        message.getExchange().put(BindingOperationInfo.class, operation);
        message.getExchange().put(OperationInfo.class, operation.getOperationInfo());
        message.getExchange().setOneWay(operation.getOperationInfo().isOneWay());

        //Set standard MessageContext properties required by JAX_WS, but not specific to JAX_WS.
        message.put(Message.WSDL_OPERATION, operation.getName());
        
        QName serviceQName = si.getName();
        message.put(Message.WSDL_SERVICE, serviceQName);

        QName interfaceQName = si.getInterface().getName();
        message.put(Message.WSDL_INTERFACE, interfaceQName);

        EndpointInfo endpointInfo = message.getExchange().get(Endpoint.class).getEndpointInfo();
        QName portQName = endpointInfo.getName();
        message.put(Message.WSDL_PORT, portQName);

        String address = endpointInfo.getAddress();
        URI wsdlDescription = null;
        try {
            wsdlDescription = new URI(address + "?wsdl");
        } catch (URISyntaxException e) {
            //do nothing
        }
        message.put(Message.WSDL_DESCRIPTION, wsdlDescription);

        return msgInfo;
    }
}