JingleFileTransferManager.java

  1. /**
  2.  *
  3.  * Copyright 2017 Paul Schaub
  4.  *
  5.  * Licensed under the Apache License, Version 2.0 (the "License");
  6.  * you may not use this file except in compliance with the License.
  7.  * You may obtain a copy of the License at
  8.  *
  9.  *     http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  17. package org.jivesoftware.smackx.jingle_filetransfer;

  18. import java.util.WeakHashMap;

  19. import org.jivesoftware.smack.Manager;
  20. import org.jivesoftware.smack.XMPPConnection;

  21. /**
  22.  * Manager for JingleFileTransfer (XEP-0234).
  23.  */
  24. public final class JingleFileTransferManager extends Manager {

  25.     private static final WeakHashMap<XMPPConnection, JingleFileTransferManager> INSTANCES = new WeakHashMap<>();

  26.     private JingleFileTransferManager(XMPPConnection connection) {
  27.         super(connection);
  28.     }

  29.     public static synchronized JingleFileTransferManager getInstanceFor(XMPPConnection connection) {
  30.         JingleFileTransferManager manager = INSTANCES.get(connection);
  31.         if (manager == null) {
  32.             manager = new JingleFileTransferManager(connection);
  33.             INSTANCES.put(connection, manager);
  34.         }
  35.         return manager;
  36.     }
  37. }