com.google.code.or.net.impl.packet.GreetingPacket.java Source code

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Here is the source code for com.google.code.or.net.impl.packet.GreetingPacket.java

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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 com.google.code.or.net.impl.packet;

import java.io.IOException;

import org.apache.commons.lang.builder.ToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;

import com.google.code.or.common.glossary.column.StringColumn;
import com.google.code.or.io.util.XDeserializer;
import com.google.code.or.io.util.XSerializer;
import com.google.code.or.net.Packet;

/**
 * 
 * @author Jingqi Xu
 */
public class GreetingPacket extends AbstractPacket {
    //
    private static final long serialVersionUID = 5506239117316020734L;

    //
    private int protocolVersion;
    private StringColumn serverVersion;
    private long threadId;
    private StringColumn scramble1;
    private int serverCapabilities;
    private int serverCollation;
    private int serverStatus;
    private StringColumn scramble2;
    private StringColumn pluginProvidedData;

    /**
     * 
     */
    @Override
    public String toString() {
        return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
                .append("protocolVersion", protocolVersion).append("serverVersion", serverVersion)
                .append("threadId", threadId).append("scramble1", scramble1)
                .append("serverCapabilities", serverCapabilities).append("serverCollation", serverCollation)
                .append("serverStatus", serverStatus).append("scramble2", scramble2)
                .append("pluginProvidedData", pluginProvidedData).toString();
    }

    /**
     * 
     */
    public byte[] getPacketBody() {
        final XSerializer s = new XSerializer(128);
        s.writeInt(this.protocolVersion, 1);
        s.writeNullTerminatedString(this.serverVersion);
        s.writeLong(this.threadId, 4);
        s.writeNullTerminatedString(this.scramble1);
        s.writeInt(this.serverCapabilities, 2);
        s.writeInt(this.serverCollation, 1);
        s.writeInt(this.serverStatus, 2);
        s.writeInt(0, 13);
        s.writeNullTerminatedString(this.scramble2);
        s.writeNullTerminatedString(this.pluginProvidedData);
        return s.toByteArray();
    }

    /**
     * 
     */
    public int getProtocolVersion() {
        return protocolVersion;
    }

    public StringColumn getServerVersion() {
        return serverVersion;
    }

    public long getThreadId() {
        return threadId;
    }

    public StringColumn getScramble1() {
        return scramble1;
    }

    public int getServerCapabilities() {
        return serverCapabilities;
    }

    public int getServerCollation() {
        return serverCollation;
    }

    public int getServerStatus() {
        return serverStatus;
    }

    public StringColumn getScramble2() {
        return scramble2;
    }

    /**
     * 
     */
    public static GreetingPacket valueOf(Packet packet) throws IOException {
        final XDeserializer d = new XDeserializer(packet.getPacketBody());
        final GreetingPacket r = new GreetingPacket();
        r.length = packet.getLength();
        r.sequence = packet.getSequence();
        r.protocolVersion = d.readInt(1);
        r.serverVersion = d.readNullTerminatedString();
        r.threadId = d.readLong(4);
        r.scramble1 = d.readNullTerminatedString();
        r.serverCapabilities = d.readInt(2);
        r.serverCollation = d.readInt(1);
        r.serverStatus = d.readInt(2);
        d.skip(13); // reserved, all 0
        r.scramble2 = d.readNullTerminatedString();
        if (d.hasMore())
            r.pluginProvidedData = d.readNullTerminatedString();
        return r;
    }
}