content: /*
   * 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.
   */
  
  package org.apache.cassandra.sidecar.utils;
  
  import io.netty.handler.codec.http.HttpHeaderNames;
  import io.vertx.core.MultiMap;
  import io.vertx.core.file.FileSystem;
  import org.apache.cassandra.sidecar.common.request.data.MD5Digest;
  import org.jetbrains.annotations.NotNull;
  
  /**
   * Implementation of {@link DigestVerifier}. Here we use MD5 implementation of {@link java.security.MessageDigest}
   * for calculating digest and match the calculated digest with expected digest obtained from request.
   */
  public class MD5DigestVerifier extends AsyncFileDigestVerifier<MD5Digest>
  {
      protected MD5DigestVerifier(@NotNull FileSystem fs, @NotNull MD5Digest digest,
                                  @NotNull DigestAlgorithm digestAlgorithm)
      {
          super(fs, digest, digestAlgorithm);
      }
  
      public static DigestVerifier create(FileSystem fs, MultiMap headers,
                                          DigestAlgorithmProvider digestAlgorithmProvider)
      {
          MD5Digest md5Digest = new MD5Digest(headers.get(HttpHeaderNames.CONTENT_MD5.toString()));
          return new MD5DigestVerifier(fs, md5Digest, digestAlgorithmProvider.get());
      }
  }
  