com.github.junrar.vfs2.provider.rar.VFSVolume.java Source code

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Here is the source code for com.github.junrar.vfs2.provider.rar.VFSVolume.java

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/*
 * This file is part of seedbox <github.com/seedbox>.
 *
 * seedbox is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * seedbox is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with seedbox.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.github.junrar.vfs2.provider.rar;

import java.io.IOException;

import org.apache.commons.vfs2.FileObject;
import org.apache.commons.vfs2.FileSystemException;
import org.apache.commons.vfs2.RandomAccessContent;
import org.apache.commons.vfs2.util.RandomAccessMode;

import com.github.junrar.Archive;
import com.github.junrar.Volume;
import com.github.junrar.io.IReadOnlyAccess;
import com.github.junrar.io.InputStreamReadOnlyAccessFile;

/**
 * @author <a href="http://www.rogiel.com">Rogiel</a>
 */
public class VFSVolume implements Volume {
    private final Archive archive;
    private final FileObject file;

    /**
     * @param archive
     * @param firstVolume
     */
    public VFSVolume(Archive archive, FileObject file) {
        this.archive = archive;
        this.file = file;
    }

    @Override
    public IReadOnlyAccess getReadOnlyAccess() throws IOException {
        IReadOnlyAccess input = null;
        try {
            RandomAccessContent rac = file.getContent().getRandomAccessContent(RandomAccessMode.READ);
            input = new RandomAccessContentAccess(rac);
        } catch (Exception e) {
            input = new InputStreamReadOnlyAccessFile(file.getContent().getInputStream());
        }
        return input;
    }

    @Override
    public long getLength() {
        try {
            return file.getContent().getSize();
        } catch (FileSystemException e) {
            return -1;
        }
    }

    @Override
    public Archive getArchive() {
        return archive;
    }

    /**
     * @return the file
     */
    public FileObject getFile() {
        return file;
    }
}