org.codehaus.plexus.archiver.snappy.SnappyUnArchiver Maven / Gradle / Ivy
/**
*
* Copyright 2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.plexus.archiver.snappy;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import javax.annotation.Nonnull;
import org.codehaus.plexus.archiver.AbstractUnArchiver;
import org.codehaus.plexus.archiver.ArchiverException;
import org.iq80.snappy.SnappyInputStream;
import static org.codehaus.plexus.archiver.util.Streams.bufferedInputStream;
import static org.codehaus.plexus.archiver.util.Streams.bufferedOutputStream;
import static org.codehaus.plexus.archiver.util.Streams.copyFully;
import static org.codehaus.plexus.archiver.util.Streams.fileInputStream;
import static org.codehaus.plexus.archiver.util.Streams.fileOutputStream;
/**
* Unarchiver for snappy-compressed files.
*/
public class SnappyUnArchiver
extends AbstractUnArchiver
{
private final static String OPERATION_SNAPPY = "snappy";
public SnappyUnArchiver()
{
}
public SnappyUnArchiver( File sourceFile )
{
super( sourceFile );
}
@Override
protected void execute()
throws ArchiverException
{
if ( getSourceFile().lastModified() > getDestFile().lastModified() )
{
getLogger().info(
"Expanding " + getSourceFile().getAbsolutePath() + " to " + getDestFile().getAbsolutePath() );
copyFully(
getSnappyInputStream( bufferedInputStream( fileInputStream( getSourceFile(), OPERATION_SNAPPY ) ) ),
bufferedOutputStream( fileOutputStream( getDestFile(), OPERATION_SNAPPY ) ), OPERATION_SNAPPY );
}
}
public static @Nonnull
SnappyInputStream getSnappyInputStream( InputStream bis )
throws ArchiverException
{
try
{
return new SnappyInputStream( bis );
}
catch ( IOException e )
{
throw new ArchiverException( "Trouble creating Snappy compressor, invalid file ?", e );
}
}
@Override
protected void execute( String path, File outputDirectory )
{
throw new UnsupportedOperationException( "Targeted extraction not supported in Snappy format." );
}
}