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.common.acl;
  
  import org.apache.kafka.common.resource.ResourcePattern;
  
  import java.util.Objects;
  
  /**
   * Represents a binding between a resource pattern and an access control entry.
   */
  public class AclBinding {
      private final ResourcePattern pattern;
      private final AccessControlEntry entry;
  
      /**
       * Create an instance of this class with the provided parameters.
       *
       * @param pattern non-null resource pattern.
       * @param entry non-null entry
       */
      public AclBinding(ResourcePattern pattern, AccessControlEntry entry) {
          this.pattern = Objects.requireNonNull(pattern, "pattern");
          this.entry = Objects.requireNonNull(entry, "entry");
      }
  
      /**
       * @return true if this binding has any UNKNOWN components.
       */
      public boolean isUnknown() {
          return pattern.isUnknown() || entry.isUnknown();
      }
  
      /**
       * @return the resource pattern for this binding.
       */
      public ResourcePattern pattern() {
          return pattern;
      }
  
      /**
       * @return the access control entry for this binding.
       */
      public final AccessControlEntry entry() {
          return entry;
      }
  
      /**
       * Create a filter which matches only this AclBinding.
       */
      public AclBindingFilter toFilter() {
          return new AclBindingFilter(pattern.toFilter(), entry.toFilter());
      }
  
      @Override
      public String toString() {
          return "(pattern=" + pattern + ", entry=" + entry + ")";
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          AclBinding that = (AclBinding) o;
          return Objects.equals(pattern, that.pattern) &&
              Objects.equals(entry, that.entry);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(pattern, entry);
      }
  }
  