| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ImporterManager |
|
| 1.0;1 |
| 1 | /* $Id: ImporterManager.java 17870 2010-01-12 20:49:32Z linus $ | |
| 2 | ***************************************************************************** | |
| 3 | * Copyright (c) 2009 Contributors - see below | |
| 4 | * All rights reserved. This program and the accompanying materials | |
| 5 | * are made available under the terms of the Eclipse Public License v1.0 | |
| 6 | * which accompanies this distribution, and is available at | |
| 7 | * http://www.eclipse.org/legal/epl-v10.html | |
| 8 | * | |
| 9 | * Contributors: | |
| 10 | * tfmorris | |
| 11 | ***************************************************************************** | |
| 12 | * | |
| 13 | * Some portions of this file was previously release using the BSD License: | |
| 14 | */ | |
| 15 | ||
| 16 | // Copyright (c) 2005-2007 The Regents of the University of California. All | |
| 17 | // Rights Reserved. Permission to use, copy, modify, and distribute this | |
| 18 | // software and its documentation without fee, and without a written | |
| 19 | // agreement is hereby granted, provided that the above copyright notice | |
| 20 | // and this paragraph appear in all copies. This software program and | |
| 21 | // documentation are copyrighted by The Regents of the University of | |
| 22 | // California. The software program and documentation are supplied "AS | |
| 23 | // IS", without any accompanying services from The Regents. The Regents | |
| 24 | // does not warrant that the operation of the program will be | |
| 25 | // uninterrupted or error-free. The end-user understands that the program | |
| 26 | // was developed for research purposes and is advised not to rely | |
| 27 | // exclusively on the program for any reason. IN NO EVENT SHALL THE | |
| 28 | // UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, | |
| 29 | // SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, | |
| 30 | // ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF | |
| 31 | // THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF | |
| 32 | // SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY | |
| 33 | // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 34 | // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE | |
| 35 | // PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF | |
| 36 | // CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, | |
| 37 | // UPDATES, ENHANCEMENTS, OR MODIFICATIONS. | |
| 38 | ||
| 39 | package org.argouml.uml.reveng; | |
| 40 | ||
| 41 | import java.util.Collections; | |
| 42 | import java.util.HashSet; | |
| 43 | import java.util.Set; | |
| 44 | ||
| 45 | import org.apache.log4j.Logger; | |
| 46 | ||
| 47 | /** | |
| 48 | * Keeps an instance of each ImportInterface implementation module registered. | |
| 49 | * ImporterManager is a singleton. | |
| 50 | */ | |
| 51 | public final class ImporterManager { | |
| 52 | /** | |
| 53 | * Logger. | |
| 54 | */ | |
| 55 | 26 | private static final Logger LOG = |
| 56 | Logger.getLogger(ImporterManager.class); | |
| 57 | ||
| 58 | /** | |
| 59 | * The instance. | |
| 60 | */ | |
| 61 | 26 | private static final ImporterManager INSTANCE = |
| 62 | new ImporterManager(); | |
| 63 | ||
| 64 | /** | |
| 65 | * @return The singleton instance of the importer manager. | |
| 66 | */ | |
| 67 | public static ImporterManager getInstance() { | |
| 68 | 26 | return INSTANCE; |
| 69 | } | |
| 70 | ||
| 71 | 26 | private Set<ImportInterface> importers = new HashSet<ImportInterface>(); |
| 72 | ||
| 73 | /** | |
| 74 | * The constructor. | |
| 75 | */ | |
| 76 | 26 | private ImporterManager() { |
| 77 | // private constructor to enforce singleton | |
| 78 | 26 | } |
| 79 | ||
| 80 | ||
| 81 | /** | |
| 82 | * Register a new source language importer. | |
| 83 | * | |
| 84 | * @param importer The ImportInterface object to register. | |
| 85 | */ | |
| 86 | public void addImporter(ImportInterface importer) { | |
| 87 | 0 | importers.add(importer); |
| 88 | // ArgoEventPump.fireEvent( | |
| 89 | // new ArgoImporterEvent(ArgoEventTypes.IMPORTER_ADDED, gen)); | |
| 90 | 0 | LOG.debug("Added importer " + importer ); |
| 91 | 0 | } |
| 92 | ||
| 93 | /** | |
| 94 | * Removes a importer. | |
| 95 | * | |
| 96 | * @param importer | |
| 97 | * the importer to be removed | |
| 98 | * | |
| 99 | * @return false if no matching importer had been registered | |
| 100 | */ | |
| 101 | public boolean removeImporter(ImportInterface importer) { | |
| 102 | 0 | boolean status = importers.remove(importer); |
| 103 | // if (status) { | |
| 104 | // ArgoEventPump.fireEvent( | |
| 105 | // new ArgoImporterEvent( | |
| 106 | // ArgoEventTypes.IMPORTER_REMOVED, old)); | |
| 107 | // } | |
| 108 | 0 | LOG.debug("Removed importer " + importer ); |
| 109 | 0 | return status; |
| 110 | } | |
| 111 | ||
| 112 | /** | |
| 113 | * @return A copy of the set of importers. | |
| 114 | */ | |
| 115 | public Set<ImportInterface> getImporters() { | |
| 116 | 0 | return Collections.unmodifiableSet(importers); |
| 117 | } | |
| 118 | ||
| 119 | ||
| 120 | /** | |
| 121 | * @return true, if at least one importer exists. | |
| 122 | */ | |
| 123 | public boolean hasImporters() { | |
| 124 | 26 | return !importers.isEmpty(); |
| 125 | } | |
| 126 | } |