/*
* SonarQube
* Copyright (C) 2009-2017 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.db;
public class DaoDatabaseUtils extends DatabaseUtils {
/**
* Returns an escaped value in parameter, with the desired wildcards. Suitable to be used in a like sql query<br />
* Escapes the "/", "%" and "_" characters.<br/>
*
* You <strong>must</strong> add "ESCAPE '/'" after your like query. It defines '/' as the escape character.
*/
public static String buildLikeValue(String value, WildcardPosition wildcardPosition) {
String escapedValue = escapePercentAndUnderscore(value);
String wildcard = "%";
switch (wildcardPosition) {
case BEFORE:
escapedValue = wildcard + escapedValue;
break;
case AFTER:
escapedValue += wildcard;
break;
case BEFORE_AND_AFTER:
escapedValue = wildcard + escapedValue + wildcard;
break;
default:
throw new UnsupportedOperationException("Unhandled WildcardPosition: " + wildcardPosition);
}
return escapedValue;
}
/**
* Replace escape percent and underscore by adding a slash just before
*/
private static String escapePercentAndUnderscore(String value) {
return value
.replaceAll("/", "//")
.replaceAll("%", "/%")
.replaceAll("_", "/_");
}
}