diff options
Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/utility/AbstractUiCommandExecutor.java')
-rw-r--r-- | common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/utility/AbstractUiCommandExecutor.java | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/utility/AbstractUiCommandExecutor.java b/common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/utility/AbstractUiCommandExecutor.java new file mode 100644 index 0000000000..ec8ffd6dcb --- /dev/null +++ b/common/plugins/org.eclipse.jpt.common.ui/src/org/eclipse/jpt/common/ui/internal/utility/AbstractUiCommandExecutor.java @@ -0,0 +1,60 @@ +/******************************************************************************* + * Copyright (c) 2007, 2012 Oracle. All rights reserved. + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0, which accompanies this distribution + * and is available at http://www.eclipse.org/legal/epl-v10.html. + * + * Contributors: + * Oracle - initial API and implementation + ******************************************************************************/ +package org.eclipse.jpt.common.ui.internal.utility; + +import org.eclipse.jpt.common.ui.internal.util.SWTUtil; +import org.eclipse.jpt.common.utility.command.Command; +import org.eclipse.jpt.common.utility.command.ExtendedCommandExecutor; +import org.eclipse.jpt.common.utility.internal.command.CommandRunnable; +import org.eclipse.jpt.common.utility.internal.command.SynchronizingCommand; + +/** + * Gather the tiny bit of common behavior. + */ +abstract class AbstractUiCommandExecutor + implements ExtendedCommandExecutor +{ + AbstractUiCommandExecutor() { + super(); + } + + Runnable buildRunnable(Command command) { + return new CommandRunnable(command); + } + + @Override + public String toString() { + return this.getClass().getSimpleName(); + } + + /** + * A common way to put a time constraint on a command dispatched + * to the UI thread. + */ + public boolean waitToExecute(Command command, long timeout) throws InterruptedException { + if (timeout == 0L) { + this.waitToExecute(command); + return true; + } + + // configure the sync command to execute the client command + SynchronizingCommand syncCommand = new SynchronizingCommand(command); + + // dispatch the sync command to the UI thread... + SWTUtil.asyncExec(this.buildRunnable(syncCommand)); + + // ...and wait for it to execute + try { + return syncCommand.waitForExecution(timeout); + } finally { + syncCommand.release(); + } + } +} |