001    /*
002     * SonarQube, open source software quality management tool.
003     * Copyright (C) 2008-2014 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * SonarQube 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     * SonarQube 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     */
020    package org.sonar.batch.tasks;
021    
022    import org.sonar.api.task.Task;
023    import org.sonar.api.task.TaskDefinition;
024    
025    public class ListTask implements Task {
026    
027      public static final String KEY = "list";
028    
029      public static final TaskDefinition DEFINITION = TaskDefinition.builder()
030        .key(KEY)
031        .description("List available tasks")
032        .taskClass(ListTask.class)
033        .build();
034    
035      private final Tasks tasks;
036    
037      public ListTask(Tasks tasks) {
038        this.tasks = tasks;
039      }
040    
041      public void execute() {
042        logBlankLine();
043        log("Available tasks:");
044        logBlankLine();
045        for (TaskDefinition def : tasks.definitions()) {
046          log("  - " + def.key() + ": " + def.description());
047        }
048        logBlankLine();
049      }
050    
051      void log(String s) {
052        System.out.println(s);
053      }
054    
055      void logBlankLine() {
056        System.out.println();
057      }
058    }