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.kafka.image;
  
  import org.apache.kafka.common.Uuid;
  import org.apache.kafka.image.node.AclsImageNode;
  import org.apache.kafka.image.writer.ImageWriter;
  import org.apache.kafka.metadata.authorizer.StandardAcl;
  import org.apache.kafka.metadata.authorizer.StandardAclWithId;
  
  import java.util.Collections;
  import java.util.Map;
  import java.util.Map.Entry;
  
  
  /**
   * Represents the ACLs in the metadata image.
   *
   * This class is thread-safe.
   */
  public final class AclsImage {
      public static final AclsImage EMPTY = new AclsImage(Map.of());
  
      private final Map<Uuid, StandardAcl> acls;
  
      public AclsImage(Map<Uuid, StandardAcl> acls) {
          this.acls = Collections.unmodifiableMap(acls);
      }
  
      public boolean isEmpty() {
          return acls.isEmpty();
      }
  
      public Map<Uuid, StandardAcl> acls() {
          return acls;
      }
  
      public void write(ImageWriter writer) {
          for (Entry<Uuid, StandardAcl> entry : acls.entrySet()) {
              StandardAclWithId aclWithId = new StandardAclWithId(entry.getKey(), entry.getValue());
              writer.write(0, aclWithId.toRecord());
          }
      }
  
      @Override
      public int hashCode() {
          return acls.hashCode();
      }
  
      @Override
      public boolean equals(Object o) {
          if (!(o instanceof AclsImage other)) return false;
          return acls.equals(other.acls);
      }
  
      @Override
      public String toString() {
          return new AclsImageNode(this).stringify();
      }
  }
  