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1   /*--------------------------------------------------------------------------
2    *  Copyright 2008 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  // utgb-shell Project
18  //
19  // BED2SilkReader.java
20  // Since: May 26, 2009
21  //
22  // $URL: http://svn.utgenome.org/utgb/trunk/utgb/utgb-shell/src/main/java/org/utgenome/shell/db/bed/BED2SilkReader.java $ 
23  // $Author: leo $
24  //--------------------------------------
25  package org.utgenome.format.bed;
26  
27  import java.io.IOException;
28  import java.io.PrintWriter;
29  import java.io.Reader;
30  import java.io.Writer;
31  
32  import org.utgenome.UTGBException;
33  import org.utgenome.format.FormatConversionReader;
34  import org.xerial.lens.SilkLens;
35  
36  /**
37   * BED2SilkReader read the input BED data, and the user can read it as if it were a Silk format.
38   * 
39   * @author leo
40   * 
41   */
42  public class BED2SilkReader extends FormatConversionReader {
43  
44  	public BED2SilkReader(Reader bedReader) throws IOException {
45  		super(bedReader, new PipeConsumer() {
46  			@Override
47  			public void consume(Reader in, Writer out) throws Exception {
48  				BED2Silk converter = new BED2Silk(in);
49  				PrintWriter pout = new PrintWriter(out);
50  				converter.toSilk(pout);
51  			}
52  		});
53  
54  	}
55  
56  	/**
57  	 * Read an input BED data, and retrieves {@link BEDTrack} and {@link BEDEntry} information through the
58  	 * {@link BEDQuery} interface.
59  	 * 
60  	 * @param input
61  	 * @param query
62  	 * @return
63  	 * @throws UTGBException
64  	 */
65  	public static BEDQuery scan(Reader input, BEDQuery query) throws UTGBException {
66  
67  		try {
68  			BED2SilkReader in = new BED2SilkReader(input);
69  			SilkLens.loadSilk(query, in);
70  			return query;
71  		}
72  		catch (Exception e) {
73  			throw UTGBException.convert(e);
74  		}
75  	}
76  
77  }