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      1 /**
      2  * $RCSfile$
      3  * $Revision$
      4  * $Date$
      5  *
      6  * Copyright 2003-2007 Jive Software.
      7  *
      8  * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
      9  * you may not use this file except in compliance with the License.
     10  * You may obtain a copy of the License at
     11  *
     12  *     http://www.apache.org/licenses/LICENSE-2.0
     13  *
     14  * Unless required by applicable law or agreed to in writing, software
     15  * distributed under the License is distributed on an "AS IS" BASIS,
     16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     17  * See the License for the specific language governing permissions and
     18  * limitations under the License.
     19  */
     20 
     21 package org.jivesoftware.smackx;
     22 
     23 import org.jivesoftware.smack.packet.PacketExtension;
     24 import org.jivesoftware.smackx.packet.DiscoverInfo;
     25 import org.jivesoftware.smackx.packet.DiscoverItems;
     26 
     27 import java.util.List;
     28 
     29 
     30 /**
     31  * The NodeInformationProvider is responsible for providing supported indentities, features
     32  * and hosted items (i.e. DiscoverItems.Item) about a given node. This information will be
     33  * requested each time this XMPPP client receives a disco info or items requests on the
     34  * given node. each time this XMPPP client receives a disco info or items requests on the
     35  * given node.
     36  *
     37  * @author Gaston Dombiak
     38  */
     39 public interface NodeInformationProvider {
     40 
     41     /**
     42      * Returns a list of the Items {@link org.jivesoftware.smackx.packet.DiscoverItems.Item}
     43      * defined in the node. For example, the MUC protocol specifies that an XMPP client should
     44      * answer an Item for each joined room when asked for the rooms where the use has joined.
     45      *
     46      * @return a list of the Items defined in the node.
     47      */
     48     List<DiscoverItems.Item> getNodeItems();
     49 
     50     /**
     51      * Returns a list of the features defined in the node. For
     52      * example, the entity caps protocol specifies that an XMPP client
     53      * should answer with each feature supported by the client version
     54      * or extension.
     55      *
     56      * @return a list of the feature strings defined in the node.
     57      */
     58     List<String> getNodeFeatures();
     59 
     60     /**
     61      * Returns a list of the indentites defined in the node. For
     62      * example, the x-command protocol must provide an identity of
     63      * category automation and type command-node for each command.
     64      *
     65      * @return a list of the Identities defined in the node.
     66      */
     67     List<DiscoverInfo.Identity> getNodeIdentities();
     68 
     69     /**
     70      * Returns a list of the packet extensions defined in the node.
     71      *
     72      * @return a list of the packet extensions defined in the node.
     73      */
     74     List<PacketExtension> getNodePacketExtensions();
     75 }
     76