content: /*
   * 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 io.airlift.compress.v3.snappy;
  
  import java.lang.foreign.MemorySegment;
  
  import static java.lang.Math.toIntExact;
  
  public final class SnappyNativeCompressor
          implements SnappyCompressor
  {
      private final SnappyNative snappyNative = new SnappyNative();
  
      public SnappyNativeCompressor()
      {
          SnappyNative.verifyEnabled();
      }
  
      public static boolean isEnabled()
      {
          return SnappyNative.isEnabled();
      }
  
      @Override
      public int maxCompressedLength(int uncompressedSize)
      {
          return toIntExact(SnappyNative.maxCompressedLength(uncompressedSize));
      }
  
      @Override
      public int compress(byte[] input, int inputOffset, int inputLength, byte[] output, int outputOffset, int maxOutputLength)
      {
          MemorySegment inputSegment = MemorySegment.ofArray(input).asSlice(inputOffset, inputLength);
          MemorySegment outputSegment = MemorySegment.ofArray(output).asSlice(outputOffset, maxOutputLength);
          return compress(inputSegment, outputSegment);
      }
  
      @Override
      public int compress(MemorySegment input, MemorySegment output)
      {
          return toIntExact(snappyNative.compress(input, input.byteSize(), output, output.byteSize()));
      }
  }
  