001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.servicemix.jbi.messaging;
018    
019    import java.io.IOException;
020    import java.io.ObjectInput;
021    
022    import javax.jbi.messaging.InOnly;
023    
024    /**
025     * InOnly message exchange.
026     * 
027     * @version $Revision: 564607 $
028     */
029    public class InOnlyImpl extends MessageExchangeImpl implements InOnly {
030    
031        private static final long serialVersionUID = -4851111881482457905L;
032    
033        private static final int[][] STATES_CONSUMER = { 
034            {CAN_CONSUMER + CAN_OWNER + CAN_SET_IN_MSG + CAN_SEND + CAN_STATUS_ACTIVE, 1, -1, -1, -1 },
035            {CAN_CONSUMER, -1, -1, 2, 2 }, 
036            {CAN_CONSUMER + CAN_OWNER, -1, -1, -1, -1 }
037        };
038    
039        private static final int[][] STATES_PROVIDER = { 
040            {CAN_PROVIDER, 1, -1, -1, -1 },
041            {CAN_PROVIDER + CAN_OWNER + CAN_SEND + CAN_STATUS_DONE + CAN_STATUS_ERROR, -1, -1, 2, 2 },
042            {CAN_PROVIDER, -1, -1, -1, -1 }
043        };
044    
045        public InOnlyImpl() {
046        }
047    
048        public InOnlyImpl(String exchangeId) {
049            super(exchangeId, MessageExchangeSupport.IN_ONLY, STATES_CONSUMER);
050            this.mirror = new InOnlyImpl(this);
051        }
052    
053        public InOnlyImpl(ExchangePacket packet) {
054            super(packet, STATES_CONSUMER);
055            this.mirror = new InOnlyImpl(this);
056        }
057    
058        protected InOnlyImpl(InOnlyImpl mep) {
059            super(mep.packet, STATES_PROVIDER);
060            this.mirror = mep;
061        }
062    
063        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
064            this.packet = new ExchangePacket();
065            this.packet.readExternal(in);
066            if (this.packet.in != null) {
067                this.packet.in.exchange = this;
068            }
069            if (this.packet.out != null) {
070                this.packet.out.exchange = this;
071            }
072            if (this.packet.fault != null) {
073                this.packet.fault.exchange = this;
074            }
075            this.state = in.read();
076            this.mirror = new InOnlyImpl();
077            this.mirror.mirror = this;
078            this.mirror.packet = this.packet;
079            this.mirror.state = in.read();
080            boolean provider = in.readBoolean();
081            if (provider) {
082                this.states = STATES_PROVIDER;
083                this.mirror.states = STATES_CONSUMER;
084            } else {
085                this.states = STATES_CONSUMER;
086                this.mirror.states = STATES_PROVIDER;
087            }
088        }
089    
090    }