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.config.ConfigResource;
  import org.apache.kafka.common.metadata.ConfigRecord;
  import org.apache.kafka.image.node.ConfigurationImageNode;
  import org.apache.kafka.image.writer.ImageWriter;
  import org.apache.kafka.image.writer.ImageWriterOptions;
  
  import java.util.Collections;
  import java.util.Map;
  import java.util.Objects;
  import java.util.Properties;
  
  
  /**
   * Represents the configuration of a resource.
   *
   * This class is thread-safe.
   */
  public final class ConfigurationImage {
      private final ConfigResource resource;
  
      private final Map<String, String> data;
  
      public ConfigurationImage(
          ConfigResource resource,
          Map<String, String> data
      ) {
          this.resource = resource;
          this.data = data;
      }
  
      public ConfigResource resource() {
          return resource;
      }
  
      public Map<String, String> data() {
          return data;
      }
  
      public boolean isEmpty() {
          return data.isEmpty();
      }
  
      public Properties toProperties() {
          Properties properties = new Properties();
          properties.putAll(data);
          return properties;
      }
  
      public Map<String, String> toMap() {
          return Collections.unmodifiableMap(data);
      }
  
      public void write(
          ConfigResource configResource,
          ImageWriter writer,
          ImageWriterOptions options
      ) {
          for (Map.Entry<String, String> entry : data.entrySet()) {
              writer.write(0, new ConfigRecord().
                  setResourceType(configResource.type().id()).
                  setResourceName(configResource.name()).
                  setName(entry.getKey()).
                  setValue(entry.getValue()));
          }
      }
  
      @Override
      public boolean equals(Object o) {
          if (!(o instanceof ConfigurationImage other)) return false;
          return data.equals(other.data);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(data);
      }
  
      @Override
      public String toString() {
          return new ConfigurationImageNode(this).stringify();
      }
  }
  