/* * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See * the License for the specific language governing rights and limitations * under the License. * * The Original Code is the Kowari Metadata Store. * * The Initial Developer of the Original Code is Plugged In Software Pty * Ltd (http://www.pisoftware.com, mailto:info@pisoftware.com). Portions * created by Plugged In Software Pty Ltd are Copyright (C) 2001,2002 * Plugged In Software Pty Ltd. All Rights Reserved. * * Contributor(s): N/A. * * [NOTE: The text of this Exhibit A may differ slightly from the text * of the notices in the Source Code files of the Original Code. You * should use the text of this Exhibit A rather than the text found in the * Original Code Source Code for Your Modifications.] * */ package org.mulgara.demo.mp3; // Java 2 standard packages // Logging import org.apache.log4j.Logger; // Local packages import org.mulgara.itql.ItqlInterpreterBean; /** * Used to initialize Mp3 and Id3Tags and share resources/properties. * * @created 2004-12-03 * * @author <a href="mailto:robert.turner@tucanatech.com">Robert Turner</a> * * @version $Revision: 1.3 $ * * @modified $Date: 2005/01/05 04:58:06 $ * * @maintenanceAuthor $Author: newmana $ * * @company <A href="mailto:info@PIsoftware.com">Plugged In Software</A> * * @copyright ©2001 <a href="http://www.pisoftware.com/">Plugged In * Software Pty Ltd</a> * * @licence <a href="{@docRoot}/../../LICENCE">Mozilla Public License v1.1</a> */ public class Mp3ContextImpl implements Mp3Context { /** * Logger. This is named after the class. */ @SuppressWarnings("unused") private final static Logger log = Logger.getLogger(Mp3ContextImpl.class. getName()); /** Bean returned by getBean */ private ItqlInterpreterBean bean = null; /** Mp3Model returned by getMp3Model */ private Mp3Model mp3Model = null; /** SchemaModel returned by getSchemaModel */ private SchemaModel schemaModel = null; /** Used to determine if the Mp3Context if ready for use. */ private boolean initialized = false; /** * Returns the ItqlInterpreterBean shared among the Mp3s. * @return ItqlInterpreterBean */ public ItqlInterpreterBean getBean() { checkInitialized(); return bean; } /** * Sets the bean to be returned by getBean(). * @param bean ItqlInterpreterBean */ public void setBean(ItqlInterpreterBean bean) { if (bean == null) { throw new IllegalArgumentException("ItqlInterpreterBean is null."); } this.bean = bean; } /** * Returns the model that contains the Mp3's metadata (Id3 info). * @return Mp3Model */ public Mp3Model getMp3Model() { checkInitialized(); return mp3Model; } /** * Sets the Mp3Model returned by getMp3Model(). * @param model Mp3Model */ public void setMp3Model(Mp3Model model) { if (model == null) { throw new IllegalArgumentException("Mp3Model is null."); } this.mp3Model = model; } /** * Returns the model containing the Id3 tag schema. * @return SchemaModel */ public SchemaModel getSchemaModel() { checkInitialized(); return schemaModel; } /** * Sets the SchemaModel returned by getSchemaModel(). * @param model SchemaModel */ public void setSchemaModel(SchemaModel model) { if (model == null) { throw new IllegalArgumentException("SchemaModel is null."); } this.schemaModel = model; } /** * Throws an exception if the Mp3Context has not been initilized. * @throws IllegalStateException */ private void checkInitialized() throws IllegalStateException { if (!initialized) { if (hasInitialized()) { initialized = true; } else { throw new IllegalStateException("Mp3Context has not been Initialized."); } } } /** * Returns true if the Mp3Context has been initialized. * @return boolean */ private boolean hasInitialized() { return (bean != null) && (mp3Model != null) && (schemaModel != null); } }