ManagerParseKill.java
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/*
* 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 io.mycat.route.parser;
import io.mycat.route.parser.util.ParseUtil;
/**
* @author mycat
*/
public final class ManagerParseKill {
public static final int OTHER = -1;
public static final int CONNECTION = 1;
public static int parse(String stmt, int offset) {
int i = offset;
for (; i < stmt.length(); i++) {
switch (stmt.charAt(i)) {
case ' ':
continue;
case '/':
case '#':
i = ParseUtil.comment(stmt, i);
continue;
case '@':
return kill2Check(stmt, i);
default:
return OTHER;
}
}
return OTHER;
}
// KILL @@CONNECTION
static int kill2Check(String stmt, int offset) {
if (stmt.length() > ++offset && stmt.charAt(offset) == '@'
&& stmt.length() > offset + 10) {
char c1 = stmt.charAt(++offset);
char c2 = stmt.charAt(++offset);
char c3 = stmt.charAt(++offset);
char c4 = stmt.charAt(++offset);
char c5 = stmt.charAt(++offset);
char c6 = stmt.charAt(++offset);
char c7 = stmt.charAt(++offset);
char c8 = stmt.charAt(++offset);
char c9 = stmt.charAt(++offset);
char c10 = stmt.charAt(++offset);
if ((c1 == 'C' || c1 == 'c') && (c2 == 'O' || c2 == 'o') && (c3 == 'N' || c3 == 'n')
&& (c4 == 'N' || c4 == 'n') && (c5 == 'E' || c5 == 'e') && (c6 == 'C' || c6 == 'c')
&& (c7 == 'T' || c7 == 't') && (c8 == 'I' || c8 == 'i') && (c9 == 'O' || c9 == 'o')
&& (c10 == 'N' || c10 == 'n')) {
if (stmt.length() > ++offset && stmt.charAt(offset) != ' ') {
return OTHER;
}
return CONNECTION;
}
}
return OTHER;
}
}