Org.simantics.fastlz

org.simantics.fastlz is a simple JNI wrapper for the open-source FastLZ real-time data compression library. The native library is a pure C implementation. Our version is based on SVN revision 12. The library also contains a Java port of the algorithm which is employed by the front-end if the native library is not available or if arguments are java heap buffers instead of native direct buffers.

Dependencies

• None, it is a self-sufficient JAR ready for deployment as OSGi bundle or POJO
• Data to compress/decompress!

Manual

All use of the FastLZ java library happens through the org.simantics.fastlz.FastLZ facade class:

    public static int compressBuffer(ByteBuffer input, int inputOffset, int length,
                                      ByteBuffer output, int outputOffset);

    public static int decompressBuffer(ByteBuffer input, int inputOffset, int length, 
                                        ByteBuffer output, int outputOffset, int maxout);

    public static InputStream read(File file) throws FileNotFoundException;

    public static OutputStream write(File file) throws FileNotFoundException;

ByteBuffers used in this interface can be either heap (ByteBuffer.allocate) or direct (ByteBuffer.allocateDirect). Use the same buffer type for both arguments for best performance.

Download

Version	Date	Download
1.1.0	now	SVN

Current Development

Works, no plans for further development.