com.github.luben.zstd.ZstdDirectBufferDecompressingStreamNoFinalizer Maven / Gradle / Ivy

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JNI bindings for Zstd native library that provides fast and high compression lossless algorithm for Java and all JVM languages.

There is a newer version: 1.5.6-8

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package com.github.luben.zstd;

import com.github.luben.zstd.util.Native;

import java.io.IOException;
import java.nio.ByteBuffer;

public class ZstdDirectBufferDecompressingStreamNoFinalizer extends BaseZstdBufferDecompressingStreamNoFinalizer {
    static {
        Native.load();
    }

    public ZstdDirectBufferDecompressingStreamNoFinalizer(ByteBuffer source) {
        super(source);
        if (!source.isDirect()) {
            throw new IllegalArgumentException("Source buffer should be a direct buffer");
        }
        this.source = source;
        stream = createDStream();
        initDStream(stream);
    }

    @Override
    public int read(ByteBuffer target) throws IOException {
        if (!target.isDirect()) {
            throw new IllegalArgumentException("Target buffer should be a direct buffer");
        }
        return readInternal(target, true);
    }

    @Override
    long createDStream() {
        return createDStreamNative();
    }

    @Override
    long freeDStream(long stream) {
        return freeDStreamNative(stream);
    }

    @Override
    long initDStream(long stream) {
        return initDStreamNative(stream);
    }

    @Override
    long decompressStream(long stream, ByteBuffer dst, int dstOffset, int dstSize, ByteBuffer src, int srcOffset, int srcSize) {
        return decompressStreamNative(stream, dst, dstOffset, dstSize, src, srcOffset, srcSize);
    }

    public static int recommendedTargetBufferSize() {
        return (int) recommendedDOutSizeNative();
    }

    private static native long createDStreamNative();

    private static native long freeDStreamNative(long stream);

    private native long initDStreamNative(long stream);

    private native long decompressStreamNative(long stream, ByteBuffer dst, int dstOffset, int dstSize, ByteBuffer src, int srcOffset, int srcSize);

    private static native long recommendedDOutSizeNative();
}