diff options
Diffstat (limited to 'ecomp-sdk/epsdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/gmap/utils/SwingWorker.java')
-rw-r--r-- | ecomp-sdk/epsdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/gmap/utils/SwingWorker.java | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/ecomp-sdk/epsdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/gmap/utils/SwingWorker.java b/ecomp-sdk/epsdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/gmap/utils/SwingWorker.java deleted file mode 100644 index 66fd9005..00000000 --- a/ecomp-sdk/epsdk-analytics/src/main/java/org/openecomp/portalsdk/analytics/gmap/utils/SwingWorker.java +++ /dev/null @@ -1,155 +0,0 @@ -/*- - * ================================================================================ - * ECOMP Portal SDK - * ================================================================================ - * Copyright (C) 2017 AT&T Intellectual Property - * ================================================================================ - * Licensed 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.openecomp.portalsdk.analytics.gmap.utils; - -import javax.swing.SwingUtilities; - -/** - * This is the 3rd version of SwingWorker (also known as - * SwingWorker 3), an abstract class that you subclass to - * perform GUI-related work in a dedicated thread. For - * instructions on using this class, see: - * - * http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html - * - * Note that the API changed slightly in the 3rd version: - * You must now invoke start() on the SwingWorker after - * creating it. - */ -public abstract class SwingWorker { - private Object value; // see getValue(), setValue() - private Thread thread; - - /** - * Class to maintain reference to current worker thread - * under separate synchronization control. - */ - private static class ThreadVar { - private Thread thread; - ThreadVar(Thread t) { thread = t; } - synchronized Thread get() { return thread; } - synchronized void clear() { thread = null; } - } - - private ThreadVar threadVar; - - /** - * Get the value produced by the worker thread, or null if it - * hasn't been constructed yet. - */ - protected synchronized Object getValue() { - return value; - } - - /** - * Set the value produced by worker thread - */ - private synchronized void setValue(Object x) { - value = x; - } - - /** - * Compute the value to be returned by the <code>get</code> method. - */ - public abstract Object construct(); - - /** - * Called on the event dispatching thread (not on the worker thread) - * after the <code>construct</code> method has returned. - */ - public void finished() { - } - - /** - * A new method that interrupts the worker thread. Call this method - * to force the worker to stop what it's doing. - */ - public void interrupt() { - Thread t = threadVar.get(); - if (t != null) { - t.interrupt(); - } - threadVar.clear(); - } - - /** - * Return the value created by the <code>construct</code> method. - * Returns null if either the constructing thread or the current - * thread was interrupted before a value was produced. - * - * @return the value created by the <code>construct</code> method - */ - public Object get() { - while (true) { - Thread t = threadVar.get(); - if (t == null) { - return getValue(); - } - try { - t.join(); - } - catch (InterruptedException e) { - Thread.currentThread().interrupt(); // propagate - return null; - } - } - } - - - /** - * Start a thread that will call the <code>construct</code> method - * and then exit. - */ - public SwingWorker() { - final Runnable doFinished = new Runnable() { - public void run() { finished(); } - }; - - Runnable doConstruct = new Runnable() { - public void run() { - try { - setValue(construct()); - } - finally { - threadVar.clear(); - } - - SwingUtilities.invokeLater(doFinished); - } - }; - - Thread t = new Thread(doConstruct); - threadVar = new ThreadVar(t); - } - - /** - * Start the worker thread. - */ - public void start() { - Thread t = threadVar.get(); - if (t != null) { - t.start(); - } - } - - public Thread getThread() { - return threadVar.get(); - } -} |