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.aries.blueprint.reflect;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  import org.apache.aries.blueprint.mutable.MutablePropsMetadata;
  import org.osgi.service.blueprint.reflect.MapEntry;
  import org.osgi.service.blueprint.reflect.Metadata;
  import org.osgi.service.blueprint.reflect.NonNullMetadata;
  import org.osgi.service.blueprint.reflect.PropsMetadata;
  
  /**
   * Implementation of PropsMetadata
   *
   * @version $Rev$, $Date$
   */
  public class PropsMetadataImpl implements MutablePropsMetadata {
  
      private List<MapEntry> entries;
  
      public PropsMetadataImpl() {
      }
  
      public PropsMetadataImpl(List<MapEntry> entries) {
          this.entries = entries;
      }
  
      public PropsMetadataImpl(PropsMetadata source) {
          for (MapEntry entry : source.getEntries()) {
              addEntry(new MapEntryImpl(entry));
          }
      }
  
      public List<MapEntry> getEntries() {
          if (this.entries == null) {
              return Collections.emptyList();
          } else {
              return Collections.unmodifiableList(this.entries);
          }
      }
  
      public void setEntries(List<MapEntry> entries) {
          this.entries = entries != null ? new ArrayList<MapEntry>(entries) : null;
      }
  
      public void addEntry(MapEntry entry) {
          if (this.entries == null) {
              this.entries = new ArrayList<MapEntry>();
          }
          this.entries.add(entry);
      }
  
      public MapEntry addEntry(NonNullMetadata key, Metadata value) {
          MapEntry entry = new MapEntryImpl(key, value);
          addEntry(entry);
          return entry;
      }
  
      public void removeEntry(MapEntry entry) {
          if (this.entries != null) {
              this.entries.remove(entry);
          }
      }
  
      @Override
      public String toString() {
          return "PropsMetadata[" +
                  "entries=" + entries +
                  ']';
      }
  }
  