com.dianping.puma.parser.mysql.event.TableMapEvent.java Source code

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Here is the source code for com.dianping.puma.parser.mysql.event.TableMapEvent.java

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/**
 * Project: ${puma-parser.aid}
 * 
 * File Created at 2012-6-24
 * $Id$
 * 
 * Copyright 2010 dianping.com.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of
 * Dianping Company. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with dianping.com.
 */
package com.dianping.puma.parser.mysql.event;

import com.dianping.puma.common.PumaContext;
import com.dianping.puma.parser.mysql.Metadata;
import com.dianping.puma.utils.PacketUtils;
import com.google.common.primitives.UnsignedLong;
import org.apache.commons.lang3.builder.ToStringBuilder;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.BitSet;

/**
 * TODO Comment of TableMapEvent
 * 
 * @author Leo Liang
 * 
 */
public class TableMapEvent extends AbstractBinlogEvent {

    private static final long serialVersionUID = -6294463562672565471L;

    private long tableId;

    private int reserved;

    private byte databaseNameLength;

    private String databaseName;

    private byte tableNameLength;

    private String tableName;

    private UnsignedLong columnCount;

    private byte[] columnTypes;

    private UnsignedLong columnMetadataCount;

    private Metadata columnMetadata;

    private BitSet columnNullabilities;

    /**
     * @return the tableId
     */
    public long getTableId() {
        return tableId;
    }

    /**
     * @return the reserved
     */
    public int getReserved() {
        return reserved;
    }

    /**
     * @return the databaseNameLength
     */
    public byte getDatabaseNameLength() {
        return databaseNameLength;
    }

    /**
     * @return the databaseName
     */
    public String getDatabaseName() {
        return databaseName;
    }

    /**
     * @return the tableNameLength
     */
    public byte getTableNameLength() {
        return tableNameLength;
    }

    /**
     * @return the tableName
     */
    public String getTableName() {
        return tableName;
    }

    /**
     * @return the columnCount
     */
    public UnsignedLong getColumnCount() {
        return columnCount;
    }

    /**
     * @return the columnTypes
     */
    public byte[] getColumnTypes() {
        return columnTypes;
    }

    /**
     * @return the columnMetadataCount
     */
    public UnsignedLong getColumnMetadataCount() {
        return columnMetadataCount;
    }

    /**
     * @return the columnMetadata
     */
    public Metadata getColumnMetadata() {
        return columnMetadata;
    }

    /**
     * @return the columnNullabilities
     */
    public BitSet getColumnNullabilities() {
        return columnNullabilities;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this).append("super", super.toString()).append("tableId", tableId)
                .append("reserved", reserved).append("databaseNameLength", databaseNameLength)
                .append("databaseName", databaseName).append("tableNameLength", tableNameLength)
                .append("tableName", tableName).append("columnCount", columnCount)
                .append("columnTypes", columnTypes).append("columnMetadataCount", columnMetadataCount)
                .append("columnMetadata", columnMetadata).append("columnNullabilities", columnNullabilities)
                .toString();
    }

    /*
     * (non-Javadoc)
     * 
     * @see com.dianping.puma.parser.mysql.event.AbstractBinlogEvent#doParse(java .nio.ByteBuffer,
     * com.dianping.puma.common.bo.PumaContext)
     */
    @Override
    public void doParse(ByteBuffer buf, PumaContext context) throws IOException {
        tableId = PacketUtils.readLong(buf, 6);
        reserved = PacketUtils.readInt(buf, 2);
        databaseNameLength = buf.get();
        databaseName = PacketUtils.readNullTerminatedString(buf);
        tableNameLength = buf.get();
        tableName = PacketUtils.readNullTerminatedString(buf);
        columnCount = PacketUtils.readLengthCodedUnsignedLong(buf);
        columnTypes = PacketUtils.readBytes(buf, columnCount.intValue());
        columnMetadataCount = PacketUtils.readLengthCodedUnsignedLong(buf);

        columnMetadata = Metadata.valueOf(columnTypes, PacketUtils.readBytes(buf, columnMetadataCount.intValue()));
        columnNullabilities = PacketUtils.readBitSet(buf, columnCount.intValue());

        context.getTableMaps().put(tableId, this);
    }

}