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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.axis2.description;

import org.apache.axiom.util.UIDGenerator;
import org.apache.axis2.AxisFault;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.context.OperationContext;
import org.apache.axis2.i18n.Messages;
import org.apache.axis2.wsdl.WSDLConstants;

import javax.xml.namespace.QName;
import java.util.ArrayList;
import java.util.HashMap;

/**
 * This class is to keep common methods and properties in InOut and OutIn axisOperation
 */
public abstract class TwoChannelAxisOperation extends AxisOperation {

    protected AxisMessage inFaultMessage;
    protected AxisMessage outFaultMessage;
    protected AxisMessage inMessage;
    protected AxisMessage outMessage;

    public TwoChannelAxisOperation() {
        super();
        //setup a temporary name
        QName tmpName = new QName(this.getClass().getName() + "_" + UIDGenerator.generateUID());
        this.setName(tmpName);
        createMessages();
    }

    public TwoChannelAxisOperation(QName name) {
        super(name);
        createMessages();
    }

    private void createMessages() {
        inMessage = new AxisMessage();
        inMessage.setDirection(WSDLConstants.WSDL_MESSAGE_DIRECTION_IN);
        inMessage.setParent(this);
        addChild("inMessage", inMessage);

        inFaultMessage = new AxisMessage();
        inFaultMessage.setParent(this);

        outFaultMessage = new AxisMessage();
        outFaultMessage.setParent(this);

        outMessage = new AxisMessage();
        outMessage.setDirection(WSDLConstants.WSDL_MESSAGE_DIRECTION_OUT);
        outMessage.setParent(this);
        addChild("outMessage", outMessage);
    }

    public void addMessage(AxisMessage message, String label) {
        if (WSDLConstants.MESSAGE_LABEL_OUT_VALUE.equals(label)) {
            addChild("outMessage", message);
        } else if (WSDLConstants.MESSAGE_LABEL_IN_VALUE.equals(label)) {
            addChild("inMessage", message);
        } else if (WSDLConstants.MESSAGE_LABEL_FAULT_VALUE.equals(label)) {
            addChild("faultMessage", message);
        } else {
            throw new UnsupportedOperationException("Not yet implemented");
        }
    }


    public AxisMessage getMessage(String label) {
        if (WSDLConstants.MESSAGE_LABEL_OUT_VALUE.equals(label)) {
            return (AxisMessage) getChild("outMessage");
        } else if (WSDLConstants.MESSAGE_LABEL_IN_VALUE.equals(label)) {
            return (AxisMessage) getChild("inMessage");
        } else {
            throw new UnsupportedOperationException("Not yet implemented");
        }
    }

    public void addFaultMessageContext(MessageContext msgContext, OperationContext opContext)
            throws AxisFault {
        HashMap mep = opContext.getMessageContexts();
        MessageContext faultMessageCtxt = (MessageContext) mep.get(MESSAGE_LABEL_FAULT_VALUE);

        if (faultMessageCtxt != null) {
            throw new AxisFault(Messages.getMessage("mepcompleted"));
        } else {
            mep.put(MESSAGE_LABEL_FAULT_VALUE, msgContext);
            opContext.setComplete(true);
            opContext.cleanup();
        }

    }

    public ArrayList getPhasesInFaultFlow() {
        return inFaultMessage.getMessageFlow();
    }

    public ArrayList getPhasesOutFaultFlow() {
        return outFaultMessage.getMessageFlow();
    }

    public ArrayList getPhasesOutFlow() {
        return outMessage.getMessageFlow();
    }

    public ArrayList getRemainingPhasesInFlow() {
        return inMessage.getMessageFlow();
    }

    public void setPhasesInFaultFlow(ArrayList list) {
        inFaultMessage.setMessageFlow(list);
    }

    public void setPhasesOutFaultFlow(ArrayList list) {
        outFaultMessage.setMessageFlow(list);
    }

    public void setPhasesOutFlow(ArrayList list) {
        outMessage.setMessageFlow(list);
    }

    public void setRemainingPhasesInFlow(ArrayList list) {
        inMessage.setMessageFlow(list);
    }
}