Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.utils.thread / src / org / simantics / utils / threads / AWTThread.java

diff --git a/bundles/org.simantics.utils.thread/src/org/simantics/utils/threads/AWTThread.java b/bundles/org.simantics.utils.thread/src/org/simantics/utils/threads/AWTThread.java
new file mode 100644 (file)
index 0000000..518cae8
--- /dev/null
+++ b/bundles/org.simantics.utils.thread/src/org/simantics/utils/threads/AWTThread.java
@@ -0,0 +1,140 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+/*\r
+ *\r
+ * @author Toni Kalajainen\r
+ */\r
+package org.simantics.utils.threads;\r
+\r
+import java.awt.EventQueue;\r
+import java.awt.Toolkit;\r
+import java.lang.reflect.Field;\r
+import java.lang.reflect.InvocationTargetException;\r
+import java.util.List;\r
+import java.util.concurrent.AbstractExecutorService;\r
+import java.util.concurrent.Executor;\r
+import java.util.concurrent.TimeUnit;\r
+\r
+import javax.swing.SwingUtilities;\r
+\r
+\r
+public class AWTThread extends AbstractExecutorService implements IThreadWorkQueue, Executor {\r
+       \r
+       public static AWTThread INSTANCE = new AWTThread();\r
+       \r
+       public static IThreadWorkQueue getThreadAccess()\r
+       {\r
+               return INSTANCE;\r
+       }\r
+       \r
+       Field dispatchThread;\r
+       \r
+       AWTThread() {\r
+               dispatchThread = getDispatchThreadField();\r
+       }\r
+       \r
+       private Field getDispatchThreadField()\r
+       {\r
+               try {\r
+                       Field f = EventQueue.class.getDeclaredField("dispatchThread");\r
+                       f.setAccessible(true);\r
+                       return f;\r
+               } catch (SecurityException e) {\r
+                       throw new RuntimeException(e);\r
+               } catch (NoSuchFieldException e) {\r
+                       throw new RuntimeException(e);\r
+               }\r
+       }\r
+       \r
+       @Override\r
+       public Thread asyncExec(Runnable runnable) {\r
+               EventQueue eq = Toolkit.getDefaultToolkit().getSystemEventQueue();\r
+               EventQueue.invokeLater(runnable);\r
+               try {\r
+                       return (Thread) dispatchThread.get(eq);\r
+               } catch (IllegalArgumentException e1) {\r
+                       throw new RuntimeException(e1);\r
+               } catch (IllegalAccessException e1) {\r
+                       throw new RuntimeException(e1);\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public boolean syncExec(Runnable runnable) {\r
+               if (EventQueue.isDispatchThread())\r
+               {\r
+                       runnable.run();\r
+                       return true;\r
+               }\r
+               \r
+               try {\r
+                       SwingUtilities.invokeAndWait(runnable);\r
+                       return true;\r
+               } catch (InterruptedException e) {\r
+                       throw new RuntimeException(e);\r
+               } catch (InvocationTargetException e) {\r
+                       throw new RuntimeException(e);\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public boolean currentThreadAccess() {\r
+               return EventQueue.isDispatchThread();\r
+       }\r
+\r
+       @Override\r
+       public Thread getThread() {\r
+               EventQueue eq = Toolkit.getDefaultToolkit().getSystemEventQueue();\r
+               try {\r
+                       return (Thread) dispatchThread.get(eq);\r
+               } catch (IllegalArgumentException e1) {\r
+                       throw new RuntimeException(e1);\r
+               } catch (IllegalAccessException e1) {\r
+                       throw new RuntimeException(e1);\r
+               }\r
+       }\r
+       \r
+       public String toString() {\r
+               return "AWT Thread";\r
+       }\r
+\r
+       @Override\r
+       public void execute(Runnable command) {\r
+               EventQueue.invokeLater(command);\r
+       }\r
+       \r
+       @Override\r
+       public void shutdown() {\r
+       }\r
+\r
+       @Override\r
+       public List<Runnable> shutdownNow() {\r
+               return null;\r
+       }\r
+\r
+       @Override\r
+       public boolean isShutdown() {\r
+               return false;\r
+       }\r
+\r
+       @Override\r
+       public boolean isTerminated() {\r
+               return false;\r
+       }\r
+\r
+       @Override\r
+       public boolean awaitTermination(long timeout, TimeUnit unit)\r
+                       throws InterruptedException {\r
+               return false;\r
+       }       \r
+\r
+}\r