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.asterix.common.cloud;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.Map;
  import java.util.function.Function;
  import java.util.stream.Collectors;
  
  public enum CloudCachePolicy {
      EAGER("eager"),
      LAZY("lazy"),
      SELECTIVE("selective");
      private static final Map<String, CloudCachePolicy> partitioningSchemes =
              Collections.unmodifiableMap(Arrays.stream(CloudCachePolicy.values())
                      .collect(Collectors.toMap(CloudCachePolicy::getPolicyName, Function.identity())));
  
      private final String policyName;
  
      CloudCachePolicy(String policyName) {
          this.policyName = policyName;
      }
  
      public String getPolicyName() {
          return policyName;
      }
  
      public static CloudCachePolicy fromName(String policyName) {
          CloudCachePolicy partitioningScheme = partitioningSchemes.get(policyName.toLowerCase());
          if (partitioningScheme == null) {
              throw new IllegalArgumentException("unknown cloud cache policy: " + policyName);
          }
          return partitioningScheme;
      }
  }
  