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/*******************************************************************************
* Copyright (c) 2016 SSI Schaefer 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:
* SSI Schaefer - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.internal.ui.groups;
import java.util.concurrent.atomic.AtomicInteger;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.debug.core.IStatusHandler;
import org.eclipse.debug.internal.core.groups.GroupLaunchConfigurationDelegate;
import org.eclipse.debug.internal.ui.DebugUIPlugin;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.jface.preference.IPreferenceStore;
/**
* Handles the states whenever a group launch begins, and when one is done
* launching.
* <p>
* The implementation uses some static variables to keep track as
* IStatusHandlers are instantiated from scratch for each state change.
*
* @since 3.12
*/
public class GroupLaunchHandler implements IStatusHandler {
private static AtomicInteger launchCounter = new AtomicInteger(0);
private static boolean removeLaunchesState = false;
@Override
public Object handleStatus(IStatus status, Object source) throws CoreException {
final IPreferenceStore prefStore = DebugUIPlugin.getDefault().getPreferenceStore();
switch (status.getCode()) {
case GroupLaunchConfigurationDelegate.CODE_GROUP_LAUNCH_START:
int prevCount = launchCounter.getAndIncrement();
if (prevCount == 0) {
// Have to temporarily turn off the "remove terminated
// launches when new one created" preference because it does
// not work well for group launches
removeLaunchesState = prefStore.getBoolean(IDebugUIConstants.PREF_AUTO_REMOVE_OLD_LAUNCHES);
prefStore.setValue(IDebugUIConstants.PREF_AUTO_REMOVE_OLD_LAUNCHES, false);
}
break;
case GroupLaunchConfigurationDelegate.CODE_GROUP_LAUNCH_DONE:
int newCount = launchCounter.decrementAndGet();
if (newCount == 0) {
prefStore.setValue(IDebugUIConstants.PREF_AUTO_REMOVE_OLD_LAUNCHES, removeLaunchesState);
}
break;
default:
// unknown state...
break;
}
return null;
}
}
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