/*
* Eoulsan development code
*
* This code may be freely distributed and modified under the
* terms of the GNU Lesser General Public License version 2.1 or
* later and CeCILL-C. This should be distributed with the code.
* If you do not have a copy, see:
*
* http://www.gnu.org/licenses/lgpl-2.1.txt
* http://www.cecill.info/licences/Licence_CeCILL-C_V1-en.txt
*
* Copyright for this code is held jointly by the Genomic platform
* of the Institut de Biologie de l'École normale supérieure and
* the individual authors. These should be listed in @author doc
* comments.
*
* For more information on the Eoulsan project and its aims,
* or to join the Eoulsan Google group, visit the home page
* at:
*
* http://outils.genomique.biologie.ens.fr/eoulsan
*
*/
package fr.ens.biologie.genomique.eoulsan.io;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import java.util.List;
import com.google.common.base.Preconditions;
import fr.ens.biologie.genomique.eoulsan.util.FileUtils;
/**
* This class define an InputStream that concatenate files in an InputStream.
* @since 1.0
* @author Laurent Jourdren
*/
public class FileConcatInputStream extends AbstractConcatInputStream {
private final Iterator<File> it;
@Override
protected boolean hasNextInputStream() {
return this.it.hasNext();
}
@Override
protected InputStream nextInputStream() throws IOException {
return FileUtils.createInputStream(this.it.next());
}
//
// Constructor
//
/**
* Constructor.
* @param files files to concatenate in the InputStream.
*/
public FileConcatInputStream(final List<File> files) {
Preconditions.checkNotNull(files, "files is null");
this.it = files.iterator();
}
}