net.java.truevfs.driver.tar.gzip.TarGZipDriverMapModifier Maven / Gradle / Ivy

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Provides a file system driver for accessing the GZIP compressed TAR file format. Add the JAR artifact of this module to the run time class path to make its file system drivers available for service location in the client API modules.

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/*
 * Copyright (C) 2005-2015 Schlichtherle IT Services.
 * All rights reserved. Use is subject to license terms.
 */
package net.java.truevfs.driver.tar.gzip;

import java.util.Map;
import javax.annotation.concurrent.Immutable;
import net.java.truecommons.annotations.ServiceImplementation;
import net.java.truecommons.shed.ExtensionSet;
import net.java.truevfs.kernel.spec.FsDriver;
import net.java.truevfs.kernel.spec.FsScheme;
import net.java.truevfs.kernel.spec.spi.FsDriverMapModifier;

/**
 * Maps a file system driver for accessing the GZIP compressed TAR file format.
 * The modified map will contain the following entries:
 * 



URI Schemes / Archive File Extensions
File System Driver Class




{@code tar.gz}, {@code tar.gzip}, {@code tgz}
{@link TarGZipDriver}



 *
 * @author Christian Schlichtherle
 */
@Immutable
@ServiceImplementation
public final class TarGZipDriverMapModifier extends FsDriverMapModifier {

    @Override
    public Map apply(final Map map) {
        final FsDriver driver = new TarGZipDriver();
        for (final String extension : new ExtensionSet("tar.gz|tar.gzip|tgz"))
            map.put(FsScheme.create(extension), driver);
        return map;
    }

    /** @return -100 */
    @Override
    public int getPriority() { return -100; }
}