001/*
002 * SonarQube
003 * Copyright (C) 2009-2017 SonarSource SA
004 * mailto:info 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.home.cache;
021
022import java.io.File;
023
024import javax.annotation.Nullable;
025
026public class FileCacheBuilder {
027  private final Logger logger;
028  private File userHome;
029
030  public FileCacheBuilder(Logger logger) {
031    this.logger = logger;
032  }
033
034  public FileCacheBuilder setUserHome(File d) {
035    this.userHome = d;
036    return this;
037  }
038
039  public FileCacheBuilder setUserHome(@Nullable String path) {
040    this.userHome = (path == null) ? null : new File(path);
041    return this;
042  }
043
044  public FileCache build() {
045    if (userHome == null) {
046      userHome = findHome();
047    }
048    File cacheDir = new File(userHome, "cache");
049    return FileCache.create(cacheDir, logger);
050  }
051  
052  private static File findHome() {
053    String path = System.getenv("SONAR_USER_HOME");
054    if (path == null) {
055      // Default
056      path = System.getProperty("user.home") + File.separator + ".sonar";
057    }
058    return new File(path);
059  }
060}