net.jpountz.lz4.LZ4JNIDecompressor Maven / Gradle / Ivy
package net.jpountz.lz4;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
import static net.jpountz.util.Utils.checkRange;
/**
* {@link LZ4Decompressor} implemented with JNI bindings to the original C
* implementation of LZ4.
*/
enum LZ4JNIDecompressor implements LZ4Decompressor {
INSTANCE {
public final int decompress(byte[] src, int srcOff, byte[] dest, int destOff, int destLen) {
checkRange(src, srcOff);
checkRange(dest, destOff, destLen);
final int result = LZ4JNI.LZ4_decompress(src, srcOff, dest, destOff, destLen);
if (result < 0) {
throw new LZ4Exception("Error decoding offset " + (srcOff - result) + " of input buffer");
}
return result;
}
};
@Override
public String toString() {
return getDeclaringClass().getSimpleName();
}
}