001/**
002 *
003 * Copyright 2017 Paul Schaub
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smackx.jingle_filetransfer;
018
019import java.util.WeakHashMap;
020
021import org.jivesoftware.smack.Manager;
022import org.jivesoftware.smack.XMPPConnection;
023
024/**
025 * Manager for JingleFileTransfer (XEP-0234).
026 */
027public final class JingleFileTransferManager extends Manager {
028
029    private static final WeakHashMap<XMPPConnection, JingleFileTransferManager> INSTANCES = new WeakHashMap<>();
030
031    private JingleFileTransferManager(XMPPConnection connection) {
032        super(connection);
033    }
034
035    public static synchronized JingleFileTransferManager getInstanceFor(XMPPConnection connection) {
036        JingleFileTransferManager manager = INSTANCES.get(connection);
037        if (manager == null) {
038            manager = new JingleFileTransferManager(connection);
039            INSTANCES.put(connection, manager);
040        }
041        return manager;
042    }
043}