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.jmx.codec;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Dictionary;
  import java.util.Enumeration;
  import java.util.HashMap;
  import java.util.Hashtable;
  import java.util.List;
  import java.util.Map;
  import javax.management.openmbean.CompositeData;
  import javax.management.openmbean.CompositeDataSupport;
  import javax.management.openmbean.OpenDataException;
  import javax.management.openmbean.TabularData;
  import javax.management.openmbean.TabularDataSupport;
  
  import org.osgi.jmx.JmxConstants;
  import org.osgi.jmx.service.useradmin.UserAdminMBean;
  import org.osgi.service.useradmin.Role;
  
  
  /**
   * <p>
   * <tt>RoleData</tt> represents Role Type @see {@link UserAdminMBean#ROLE_TYPE}.It is a codec
   * for the <code>CompositeData</code> representing a Role.
   * </p>
   *
   * @version $Rev$ $Date$
   */
  public class RoleData {
  
      /**
       * role name.
       */
      protected String name;
      /**
       * role type.
       */
      protected int type;
      /**
       * role propeties.
       */
      protected List<PropertyData<? extends Object>> properties = new ArrayList<PropertyData<? extends Object>>();
  
  
      /**
       * Constructs new RoleData from Role object.
       * @param role {@link Role} instance.
       */
      public RoleData(Role role){
          this(role.getName(), role.getType(), role.getProperties());
      }
  
      /**
       * Constructs new RoleData.
       * @param name role name.
       * @param type role type.
       */
      public RoleData(String name, int type) {
          this(name, type, null);
      }
      
      /**
       * Constructs new RoleData.
       * @param name role name.
       * @param type role type.
       * @param properties role properties.
       */
      @SuppressWarnings("rawtypes")
  	public RoleData(String name, int type, Dictionary properties) {
          this.name = name;
          this.type = type;
  
          if (properties != null) {
              for (Enumeration e = properties.keys(); e.hasMoreElements(); ) {
                  String key = e.nextElement().toString();
                  this.properties.add(PropertyData.newInstance(key, properties.get(key)));
              }
          }
      }
  
      /**
       * Translates RoleData to CompositeData represented by
       * compositeType {@link UserAdminMBean#ROLE_TYPE}.
       *
       * @return translated RoleData to compositeData.
       */
      public CompositeData toCompositeData() {
          try {
              Map<String, Object> items = new HashMap<String, Object>();
              items.put(UserAdminMBean.NAME, name);
              items.put(UserAdminMBean.TYPE, type);
              // items.put(UserAdminMBean.PROPERTIES, getPropertiesTable());
              return new CompositeDataSupport(UserAdminMBean.ROLE_TYPE, items);
          } catch (OpenDataException e) {
              throw new IllegalStateException("Can't create CompositeData" + e);
          }
      }
  
      protected TabularData getPropertiesTable() {
          return getPropertiesTable(properties);
      }
  
      protected static TabularData getPropertiesTable(List<PropertyData<? extends Object>> data) {
          TabularData propertiesTable = new TabularDataSupport(JmxConstants.PROPERTIES_TYPE);
          for (PropertyData<? extends Object> propertyData : data) {
              propertiesTable.put(propertyData.toCompositeData());
          }
          return propertiesTable;
      }
  
      /**
       * Static factory method to create RoleData from CompositeData object.
       *
       * @param data {@link CompositeData} instance.
       * @return RoleData instance.
       */
      public static RoleData from(CompositeData data) {
          if(data == null){
              return null;
          }
          String name = (String) data.get(UserAdminMBean.NAME);
          int type = (Integer) data.get(UserAdminMBean.TYPE);
          // Dictionary<String, Object> props = propertiesFrom((TabularData) data.get(UserAdminMBean.PROPERTIES));
  
          return new RoleData(name, type, null /* props */);
      }
  
      /**
       * Creates TabularData from Dictionary.
       *
       * @param props Dictionary instance.
       * @return TabularData instance.
       */
      protected static TabularData toTabularData(Dictionary<String, Object> props){
          if(props == null){
              return null;
          }
          TabularData data = new TabularDataSupport(JmxConstants.PROPERTIES_TYPE);
          for (Enumeration<String> keys = props.keys(); keys.hasMoreElements();) {
              String key = keys.nextElement();
              data.put(PropertyData.newInstance(key, props.get(key)).toCompositeData());
          }
          return data;
      }
  
      /**
       * Creates properties from TabularData object.
       *
       * @param data {@link TabularData} instance.
       * @return translated tabular data to properties {@link Dictionary}.
       */
      protected static Dictionary<String, Object> propertiesFrom(TabularData data){
          if(data == null){
              return null;
          }
  
          Dictionary<String, Object> props = new Hashtable<String, Object>();
          for(CompositeData compositeData : (Collection<CompositeData>)data.values()){
              PropertyData  property = PropertyData.from(compositeData);
              props.put(property.getKey(), property.getValue());
          }
  
          return props;
      }
      /**
       * @return the name
       */
      public String getName() {
          return name;
      }
  
      /**
       * @return the type
       */
      public int getType() {
          return type;
      }
  
  }