org.codehaus.plexus.archiver.snappy.PlexusIoSnappyResourceCollection Maven / Gradle / Ivy

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package org.codehaus.plexus.archiver.snappy;

import org.codehaus.plexus.components.io.attributes.Java7FileAttributes;
import org.codehaus.plexus.components.io.attributes.PlexusIoResourceAttributes;
import org.codehaus.plexus.components.io.resources.PlexusIoCompressedFileResourceCollection;
import org.codehaus.plexus.util.IOUtil;

import javax.annotation.Nonnull;
import javax.annotation.WillNotClose;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;


/**
 * Implementation of {@link org.codehaus.plexus.components.io.resources.PlexusIoResourceCollection} for
 * snappy compressed files.
 */
public class PlexusIoSnappyResourceCollection
    extends PlexusIoCompressedFileResourceCollection
{
    @Nonnull
    protected @WillNotClose InputStream getInputStream( File file )
        throws IOException
    {
        InputStream fis = new FileInputStream( file );
        try
        {
            final InputStream result = SnappyUnArchiver.getSnappyInputStream( fis );
			fis = null;
            return result;
        }
        finally
        {
            IOUtil.close( fis );
        }
    }


	@Override protected PlexusIoResourceAttributes getAttributes(File file) throws IOException {
        return new Java7FileAttributes(file, new HashMap(), new HashMap());
	}

	protected String getDefaultExtension()
    {
        return ".snappy";
    }
}