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1   ////////////////////////////////////////////////////////////////////////////////
2   // checkstyle: Checks Java source code for adherence to a set of rules.
3   // Copyright (C) 2001-2015 the original author or authors.
4   //
5   // This library is free software; you can redistribute it and/or
6   // modify it under the terms of the GNU Lesser General Public
7   // License as published by the Free Software Foundation; either
8   // version 2.1 of the License, or (at your option) any later version.
9   //
10  // This library is distributed in the hope that it will be useful,
11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  // Lesser General Public License for more details.
14  //
15  // You should have received a copy of the GNU Lesser General Public
16  // License along with this library; if not, write to the Free Software
17  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  ////////////////////////////////////////////////////////////////////////////////
19  package com.puppycrawl.tools.checkstyle;
20  
21  import com.puppycrawl.tools.checkstyle.api.CheckstyleException;
22  
23  /**
24   * A module factory creates Objects from a given name.
25   * It's purpose is to map the shortnames like
26   * <code>AvoidStarImport</code> to full classnames like
27   * <code>com.puppycrawl.tools.checkstyle.checks.AvoidStarImportCheck</code>.
28   * A ModuleFactory can implement this name resolution by using naming
29   * conventions, fallback strategies, etc.
30   *
31   * @author lkuehne
32   */
33  public interface ModuleFactory
34  {
35      /**
36       * Creates a new instance of a class from a given name.
37       * If the provided module name is a class name an instance of that class
38       * is returned. If the name is not a class name the ModuleFactory uses
39       * heuristics to find the corresponding class.
40       *
41       * @param name the name of the module, might be a shortname
42       * @return the created module
43       * @throws CheckstyleException if no module can be instantiated from name
44       */
45      Object createModule(String name) throws CheckstyleException;
46  }