/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.uima.caseditor.ui.action;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import java.lang.reflect.InvocationTargetException;
import org.apache.uima.caseditor.CasEditorPlugin;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.progress.IProgressService;
/**
* This class executes a {@link IRunnableWithProgress} runnable.
*/
public class RunnableAction extends Action {
private Shell mShell;
private IRunnableWithProgress mRunnable;
private String mName;
/**
* Initializes a new instance.
*
* @param shell
* @param name
* @param runnable
*/
public RunnableAction(Shell shell, String name, IRunnableWithProgress runnable) {
Assert.isNotNull(shell);
mShell = shell;
Assert.isNotNull(name);
mName = name;
setText(name);
Assert.isNotNull(runnable);
mRunnable = runnable;
}
@Override
public void run() {
IProgressService progressService = PlatformUI.getWorkbench().getProgressService();
try {
progressService.run(true, false, mRunnable);
} catch (InvocationTargetException e) {
Status status = new Status(IStatus.ERROR, CasEditorPlugin.ID, 0, getRootCauseStackTrace(e),
null);
ErrorDialog.openError(mShell, "Unexpected exception in " + mName,
"Unexpected exception!", status);
} catch (InterruptedException e) {
// task terminated ... just ignore
}
}
public String getRootCauseStackTrace(Throwable e) {
StringBuffer b = new StringBuffer(200);
Throwable cur = e;
Throwable next;
while (null != (next = cur.getCause())) {
cur = next;
}
ByteArrayOutputStream ba = new ByteArrayOutputStream();
PrintStream ps = new PrintStream(ba);
cur.printStackTrace(ps);
ps.flush();
b.append(ba.toString());
ps.close();
return b.toString();
}
}