/*
* Copyright (c) 2013, OpenCloudDB/MyCAT and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software;Designed and Developed mainly by many Chinese
* opensource volunteers. you can redistribute it and/or modify it under the
* terms of the GNU General Public License version 2 only, as published by the
* Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Any questions about this component can be directed to it's project Web address
* https://code.google.com/p/opencloudb/.
*
*/
package org.opencloudb.handler;
import org.opencloudb.config.ErrorCode;
import org.opencloudb.manager.ManagerConnection;
import org.opencloudb.parser.ManagerParseClear;
import org.opencloudb.response.ClearSlow;
import org.opencloudb.util.StringUtil;
/**
* @author mycat
*/
public class ClearHandler {
public static void handle(String stmt, ManagerConnection c, int offset) {
int rs = ManagerParseClear.parse(stmt, offset);
switch (rs & 0xff) {
case ManagerParseClear.SLOW_DATANODE: {
String name = stmt.substring(rs >>> 8).trim();
if (StringUtil.isEmpty(name)) {
c.writeErrMessage(ErrorCode.ER_YES, "Unsupported statement");
} else {
ClearSlow.dataNode(c, name);
}
break;
}
case ManagerParseClear.SLOW_SCHEMA: {
String name = stmt.substring(rs >>> 8).trim();
if (StringUtil.isEmpty(name)) {
c.writeErrMessage(ErrorCode.ER_YES, "Unsupported statement");
} else {
ClearSlow.schema(c, name);
}
break;
}
default:
c.writeErrMessage(ErrorCode.ER_YES, "Unsupported statement");
}
}
}