ObservationSequencesWriter.java

/*
 * Copyright (c) 2004-2009, Jean-Marc François. All Rights Reserved.
 * Licensed under the New BSD license.  See the LICENSE file.
 */

package be.ac.ulg.montefiore.run.jahmm.io;

import java.util.*;
import java.io.*;

import be.ac.ulg.montefiore.run.jahmm.*;


/**
 * This class can write a set of observation sequences to a
 * {@link java.io.Writer Writer}.
 * <p>
 * The sequences written using this file can be read using the
 * {@link ObservationSequencesReader ObservationSequencesReader} class.
 */
public class ObservationSequencesWriter
{
    /**
     * Writes a set of sequences to file.
     *
     * @param writer The writer to write to. It should use the "US-ASCII"
     *               character set.
     * @param ow The observation writer used to generate the observations. 
     * @param sequences The set of observation sequences.
     */
	static public <O extends Observation> void 
	write(Writer writer, ObservationWriter<? super O> ow,
			List<? extends List<O>> sequences)
	throws IOException
	{
		for (List<O> s : sequences)
			write(s, ow, writer);
	}
	
	
	/* 
	 * Writes the sequence 'sequence' to the writer 'writer' using the
	 * observation writer 'ow'.
	 */
	static <O extends Observation> void
	write(List<O> sequence, ObservationWriter<? super O> ow, Writer writer) 
	throws IOException
	{
		for (O o : sequence) 
			ow.write(o, writer);
		
		writer.write("\n");
    }
}