com.google.code.or.binlog.impl.variable.status.QUpdatedDBNames.java Source code

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Here is the source code for com.google.code.or.binlog.impl.variable.status.QUpdatedDBNames.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.binlog.impl.variable.status;

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.common.util.MySQLConstants;
import com.google.code.or.io.XInputStream;

/**
 * 
 * @author Jingqi Xu
 */
public class QUpdatedDBNames extends AbstractStatusVariable {
    //
    public static final int TYPE = MySQLConstants.Q_UPDATED_DB_NAMES;

    //
    private final int accessedDbCount;
    private final StringColumn[] accessedDbs;

    /**
     * 
     */
    public QUpdatedDBNames(int accessedDbCount, StringColumn[] accessedDbs) {
        super(TYPE);
        this.accessedDbCount = accessedDbCount;
        this.accessedDbs = accessedDbs;
    }

    /**
     * 
     */
    @Override
    public String toString() {
        return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
                .append("accessedDbCount", accessedDbCount).append("accessedDbs", accessedDbs).toString();
    }

    /**
     * 
     */
    public int getAccessedDbCount() {
        return accessedDbCount;
    }

    public StringColumn[] getAccessedDbs() {
        return accessedDbs;
    }

    /**
     * 
     */
    public static QUpdatedDBNames valueOf(XInputStream tis) throws IOException {
        int accessedDbCount = tis.readInt(1);
        StringColumn accessedDbs[] = null;
        if (accessedDbCount > MySQLConstants.MAX_DBS_IN_EVENT_MTS) {
            accessedDbCount = MySQLConstants.OVER_MAX_DBS_IN_EVENT_MTS;
        } else {
            accessedDbs = new StringColumn[accessedDbCount];
            for (int i = 0; i < accessedDbCount; i++) {
                accessedDbs[i] = tis.readNullTerminatedString();
            }
        }
        return new QUpdatedDBNames(accessedDbCount, accessedDbs);
    }
}