52 lines
1.7 KiB
Java
52 lines
1.7 KiB
Java
/**
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*
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* Copyright 2014 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack;
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import java.lang.ref.WeakReference;
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import org.jivesoftware.smack.SmackException.NotLoggedInException;
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import org.jivesoftware.smack.util.Objects;
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public abstract class Manager {
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final WeakReference<XMPPConnection> weakConnection;
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public Manager(XMPPConnection connection) {
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Objects.requireNonNull(connection, "XMPPConnection must not be null");
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weakConnection = new WeakReference<>(connection);
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}
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protected final XMPPConnection connection() {
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return weakConnection.get();
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}
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/**
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* Get the XMPPConnection of this Manager if it's authenticated, i.e. logged in. Otherwise throw a {@link NotLoggedInException}.
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*
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* @return the XMPPConnection of this Manager.
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* @throws NotLoggedInException if the connection is not authenticated.
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*/
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protected final XMPPConnection getAuthenticatedConnectionOrThrow() throws NotLoggedInException {
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XMPPConnection connection = connection();
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if (!connection.isAuthenticated()) {
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throw new NotLoggedInException();
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}
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return connection;
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}
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}
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