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1   /*--------------------------------------------------------------------------
2    *  Copyright 2007 utgenome.org
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License");
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License.
15   *--------------------------------------------------------------------------*/
16  //--------------------------------------
17  // UTGBMedaka Project
18  //
19  // TrackFactoryHolder.java
20  // Since: Aug 7, 2007
21  //
22  // $URL$ 
23  // $Author$
24  //--------------------------------------
25  package org.utgenome.gwt.utgb.client.track;
26  
27  import java.util.HashMap;
28  
29  import org.utgenome.gwt.utgb.client.UTGBClientErrorCode;
30  import org.utgenome.gwt.utgb.client.UTGBClientException;
31  import org.utgenome.gwt.utgb.client.track.HasFactory.TrackGroupFactory;
32  import org.utgenome.gwt.utgb.client.track.Track.TrackFactory;
33  import org.utgenome.gwt.utgb.client.util.CanonicalProperties;
34  
35  /**
36   * 
37   * @author leo
38   */
39  public class TrackFactoryHolder {
40  
41  	/**
42  	 * Non-constractable
43  	 */
44  	private TrackFactoryHolder() {
45  	}
46  
47  	private static HashMap<String, TrackFactory> trackFactoryTable = new HashMap<String, TrackFactory>();
48  	private static HashMap<String, TrackGroupFactory> trackGroupFactoryTable = new HashMap<String, TrackGroupFactory>();
49  
50  	static {
51  		TrackFactorySetup.initialize();
52  	}
53  
54  	public static void addTrackFactory(String absoluteTrackClassName, TrackFactory factory) {
55  		trackFactoryTable.put(CanonicalProperties.toCanonicalName(absoluteTrackClassName), factory);
56  	}
57  
58  	public static void addTrackGroupFactory(String absoluteTrackGroupClassName, TrackGroupFactory factory) {
59  		trackGroupFactoryTable.put(CanonicalProperties.toCanonicalName(absoluteTrackGroupClassName), factory);
60  	}
61  
62  	public static TrackFactory getTrackFactory(String name) throws UTGBClientException {
63  		return trackFactoryTable.get(CanonicalProperties.toCanonicalName(name));
64  	}
65  
66  	public static TrackGroupFactory getTrackGroupFactory(String name) throws UTGBClientException {
67  		TrackGroupFactory factory = trackGroupFactoryTable.get(CanonicalProperties.toCanonicalName(name));
68  		if (factory == null)
69  			throw new UTGBClientException(UTGBClientErrorCode.UNKNOWN_TRACK_GROUP, "unknown track group: " + name);
70  		else
71  			return factory;
72  	}
73  
74  }