/*
* 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);
}
}