001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.tools.imagecollection.metamapper;
031
032import java.io.File;
033import java.io.FileNotFoundException;
034import java.io.FileOutputStream;
035import java.io.PrintWriter;
036
037import org.openimaj.tools.imagecollection.collection.ImageCollectionEntry;
038import org.openimaj.tools.imagecollection.utils.MetaMapUtils;
039
040public class FileMetaMapper extends MetaMapper{
041        private File metaOutputFile;
042        private PrintWriter metaWriter;
043        public FileMetaMapper(File metaOutputFile) throws FileNotFoundException{
044                this.metaOutputFile = metaOutputFile;
045        }
046        
047        @Override
048        public void start() throws FileNotFoundException{
049                this.metaWriter = new PrintWriter(new FileOutputStream(metaOutputFile),true);
050        }
051        
052        @Override
053        public void mapItem(String name, ImageCollectionEntry<?> entry) {
054                String jsonString = MetaMapUtils.metaAsJson(entry.meta);
055                metaWriter.println(String.format("%s: %s",name,jsonString));
056        }
057        
058        @Override
059        public void end() throws FileNotFoundException{
060                this.metaWriter.flush();
061                this.metaWriter.close();
062        }
063}