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Viewing changes to TuxGuitar/src/org/herac/tuxguitar/io/base/TGFileFormatManager.java

  • Committer: Bazaar Package Importer
  • Author(s): Philippe Coval
  • Date: 2008-06-19 00:30:30 UTC
  • mto: (5.1.2 sid)
  • mto: This revision was merged to the branch mainline in revision 3.
  • Revision ID: james.westby@ubuntu.com-20080619003030-h719szrhsngou7c6
Tags: upstream-1.0
Import upstream version 1.0

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TuxGuitar/src/org/herac/tuxguitar/io/base/TGFileFormatManager.java
 
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package org.herac.tuxguitar.io.base;
 
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import java.util.ArrayList;
 
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import java.util.Iterator;
 
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import java.util.List;
 
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import org.herac.tuxguitar.io.tg.TGInputStream;
 
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import org.herac.tuxguitar.io.tg.TGOutputStream;
 
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import org.herac.tuxguitar.io.tg.TGStream;
 
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public class TGFileFormatManager {
 
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        public static final String DEFAULT_EXTENSION = TGStream.TG_FORMAT_EXTENSION;
 
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        private static TGFileFormatManager instance;
 
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        private TGSongLoader loader;
 
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        private TGSongWriter writer;
 
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        private List inputStreams;
 
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        private List outputStreams;
 
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        private List exporters;
 
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        private List importers;
 
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        private TGFileFormatManager(){
 
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                this.loader = new TGSongLoader();
 
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                this.writer = new TGSongWriter();
 
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                this.inputStreams = new ArrayList();
 
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                this.outputStreams = new ArrayList();
 
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                this.exporters = new ArrayList();
 
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                this.importers = new ArrayList();
 
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                this.addDefatultStreams();
 
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        }
 
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        public static TGFileFormatManager instance(){
 
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                if(instance == null){
 
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                        instance = new TGFileFormatManager();
 
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                }
 
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                return instance;
 
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        }
 
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        public TGSongLoader getLoader(){
 
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                return this.loader;
 
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        }
 
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        public TGSongWriter getWriter(){
 
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                return this.writer;
 
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        }
 
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        public void addInputStream(TGInputStreamBase stream){
 
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                this.inputStreams.add(stream);
 
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        }
 
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        public void removeInputStream(TGInputStreamBase stream){
 
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                this.inputStreams.remove(stream);
 
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        }
 
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        public void addOutputStream(TGOutputStreamBase stream){
 
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                this.outputStreams.add(stream);
 
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        }
 
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        public void removeOutputStream(TGOutputStreamBase stream){
 
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                this.outputStreams.remove(stream);
 
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        }
 
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        public void addImporter(TGSongImporter importer){
 
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                this.importers.add(importer);
 
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        }
 
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        public void removeImporter(TGSongImporter importer){
 
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                this.importers.remove(importer);
 
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        }
 
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        public void addExporter(TGSongExporter exporter){
 
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                this.exporters.add(exporter);
 
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        }
 
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        public void removeExporter(TGSongExporter exporter){
 
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                this.exporters.remove(exporter);
 
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        }
 
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        public Iterator getInputStreams(){
 
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                return this.inputStreams.iterator();
 
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        }
 
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        public Iterator getOutputStreams(){
 
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                return this.outputStreams.iterator();
 
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        }
 
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        public Iterator getImporters(){
 
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                return this.importers.iterator();
 
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        }
 
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        public Iterator getExporters(){
 
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                return this.exporters.iterator();
 
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        }
 
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        public List getInputFormats(){
 
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                List formats = new ArrayList();
 
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                Iterator it = getInputStreams();
 
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                while(it.hasNext()){
 
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                        TGInputStreamBase stream = (TGInputStreamBase)it.next();
 
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                        TGFileFormat format = stream.getFileFormat();
 
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                        if(!existsFormat(format, formats)){
 
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                                formats.add(format);
 
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                        }
 
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                }
 
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                return formats;
 
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        }
 
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        public List getOutputFormats(){
 
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                List formats = new ArrayList();
 
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                Iterator it = getOutputStreams();
 
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                while(it.hasNext()){
 
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                        TGOutputStreamBase stream = (TGOutputStreamBase)it.next();
 
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                        TGFileFormat format = stream.getFileFormat();
 
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                        if(!existsFormat(format, formats)){
 
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                                formats.add(format);
 
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                        }
 
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                }
 
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                return formats;
 
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        }
 
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        private boolean existsFormat(TGFileFormat format,List formats){
 
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                Iterator it = formats.iterator();
 
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                while(it.hasNext()){
 
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                        TGFileFormat comparator = (TGFileFormat)it.next();
 
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                        if(comparator.getName().equals(format.getName()) || comparator.getSupportedFormats().equals(format.getSupportedFormats())){
 
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                                return true;
 
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                        }
 
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                }
 
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                return false;
 
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        }
 
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        private void addDefatultStreams(){
 
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                this.addInputStream(new TGInputStream());
 
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                this.addOutputStream(new TGOutputStream());
 
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        }
 
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}