1 files changed, 59 insertions, 0 deletions
diff --git a/server/sonar-db-dao/src/main/java/org/sonar/db/DaoDatabaseUtils.java b/server/sonar-db-dao/src/main/java/org/sonar/db/DaoDatabaseUtils.java
new file mode 100644
index 00000000000..34adb733165
--- /dev/null
+++ b/server/sonar-db-dao/src/main/java/org/sonar/db/DaoDatabaseUtils.java
@@ -0,0 +1,59 @@
+/*
+ * 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("_", "/_");
+  }
+}