1 files changed, 61 insertions, 0 deletions
diff --git a/plugins/infra/core/org.eclipse.papyrus.infra.tools/src/org/eclipse/papyrus/infra/tools/util/IProgressRunnable.java b/plugins/infra/core/org.eclipse.papyrus.infra.tools/src/org/eclipse/papyrus/infra/tools/util/IProgressRunnable.java
new file mode 100644
index 00000000000..124099a64fc
--- /dev/null
+++ b/plugins/infra/core/org.eclipse.papyrus.infra.tools/src/org/eclipse/papyrus/infra/tools/util/IProgressRunnable.java
@@ -0,0 +1,61 @@
+/*****************************************************************************
+ * Copyright (c) 2016 Christian W. Damus and others.
+ * 
+ * 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:
+ *   Christian W. Damus - Initial API and implementation
+ *   
+ *****************************************************************************/
+
+package org.eclipse.papyrus.infra.tools.util;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+
+/**
+ * An analogue of the Eclipse JFace {@code IRunnableWithProgress} interface,
+ * a protocol for executable tasks that can report measurable progress.
+ * Implementations of the {@link IExecutorService} can supply suitable progress
+ * reporting to these runnables.
+ * 
+ * @see IExecutorService
+ */
+@FunctionalInterface
+public interface IProgressRunnable {
+	/**
+	 * Executes the task.
+	 * 
+	 * @param monitor
+	 *            for reporting of progress of the task
+	 */
+	void run(IProgressMonitor monitor);
+
+	/**
+	 * Adapts a plain Java {@code runnable} task to a progress-runnable task.
+	 * 
+	 * @param label
+	 *            an user-presentable label for the task
+	 * @param runnable
+	 *            a plain runnable
+	 * 
+	 * @return a progress runnable decorating the plain {@code runnable}
+	 */
+	static IProgressRunnable convert(String label, Runnable runnable) {
+		return progress -> {
+			if (progress != null) {
+				progress.beginTask(label, IProgressMonitor.UNKNOWN);
+			}
+
+			try {
+				runnable.run();
+			} finally {
+				if (progress != null) {
+					progress.done();
+				}
+			}
+		};
+	}
+}