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.common.request.data;
  
  import java.util.Collections;
  import java.util.Map;
  import java.util.Objects;
  
  import io.netty.handler.codec.http.HttpHeaderNames;
  import org.jetbrains.annotations.NotNull;
  
  /**
   * Implements the MD5 checksum digest
   */
  public class MD5Digest implements Digest
  {
      private final @NotNull String value;
  
      /**
       * Constructs a new MD5Digest with the provided MD5 {@code value}
       *
       * @param value the MD5 value
       */
      public MD5Digest(@NotNull String value)
      {
          this.value = Objects.requireNonNull(value, "value is required");
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      public String value()
      {
          return value;
      }
  
      @Override
      public String algorithm()
      {
          return "MD5";
      }
  
      /**
       * @return MD5 headers for the Digest
       */
      @Override
      public Map<String, String> headers()
      {
          return Collections.singletonMap(HttpHeaderNames.CONTENT_MD5.toString(), value);
      }
  }
  