001/*
002 * SonarQube
003 * Copyright (C) 2009-2016 SonarSource SA
004 * mailto:contact AT sonarsource DOT com
005 *
006 * This program is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * This program is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public License
017 * along with this program; if not, write to the Free Software Foundation,
018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
019 */
020package org.sonar.api.internal;
021
022import com.google.common.io.Resources;
023import java.io.IOException;
024import java.net.URL;
025import java.nio.charset.StandardCharsets;
026import org.sonar.api.SonarQubeVersion;
027import org.sonar.api.utils.System2;
028import org.sonar.api.utils.Version;
029
030/**
031 * For internal use only.
032 */
033public class SonarQubeVersionFactory {
034
035  private static final String FILE_PATH = "/sq-version.txt";
036
037  private SonarQubeVersionFactory() {
038    // prevents instantiation
039  }
040
041  public static SonarQubeVersion create(System2 system) {
042    try {
043      URL url = system.getResource(FILE_PATH);
044      String versionInFile = Resources.toString(url, StandardCharsets.UTF_8);
045      return new SonarQubeVersion(Version.parse(versionInFile));
046    } catch (IOException e) {
047      throw new IllegalStateException("Can not load " + FILE_PATH + " from classpath", e);
048    }
049  }
050}