/*
* Copyright 1999-2012 Alibaba Group.
*
* Licensed 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.alibaba.cobar.manager.handler;
import com.alibaba.cobar.config.ErrorCode;
import com.alibaba.cobar.manager.ManagerConnection;
import com.alibaba.cobar.manager.parser.ManagerParseClear;
import com.alibaba.cobar.manager.response.ClearSlow;
import com.alibaba.cobar.util.StringUtil;
/**
* @author xianmao.hexm 2012-4-16
*/
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");
}
}
}