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/*******************************************************************************
* Copyright (c) 2017, 2019 SSI Schaefer IT Solutions GmbH and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* SSI Schaefer IT Solutions GmbH
*******************************************************************************/
package org.eclipse.debug.ui.launchview.internal.model;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import java.util.stream.Collectors;
import org.eclipse.debug.ui.launchview.internal.services.ILaunchObjectProvider;
import org.eclipse.debug.ui.launchview.internal.services.LaunchModel;
import org.eclipse.ui.IWorkbench;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Deactivate;
import org.osgi.service.component.annotations.Reference;
import org.osgi.service.component.annotations.ReferenceCardinality;
import org.osgi.service.component.annotations.ReferencePolicy;
import org.osgi.service.component.annotations.ReferencePolicyOption;
@Component(immediate = true)
public class LaunchViewModel implements LaunchModel {
public Set<ILaunchObjectProvider> providers = new TreeSet<>((a, b) -> {
int x = Integer.compare(b.getPriority(), a.getPriority());
if (x == 0) {
x = a.getClass().getName().compareTo(b.getClass().getName());
}
return x;
});
private static LaunchViewModel service;
private final List<Runnable> updateListeners = new ArrayList<>();
private final Runnable providerUpdateListener = () -> fireUpdate();
public Set<ILaunchObjectProvider> getProviders() {
return providers;
}
@Override
public LaunchObjectContainerModel getModel() {
LaunchObjectContainerModel root = new LaunchObjectContainerModel();
// find all objects from services, sorted by prio (highest prio first).
Set<LaunchObjectModel> allObjects = providers.stream().map(p -> p.getLaunchObjects()).flatMap(o -> o.stream().map(LaunchObjectModel::new)).collect(Collectors.toCollection(TreeSet::new));
// create favorite container
LaunchObjectFavoriteContainerModel favorites = new LaunchObjectFavoriteContainerModel();
root.addChild(favorites);
// create all required type containers
allObjects.stream().map(o -> o.getObject().getType()).distinct().map(LaunchObjectContainerModel::new).forEach(root::addChild);
// create all nodes
allObjects.stream().forEach(m -> {
LaunchObjectContainerModel container = root.getContainerFor(m);
if (container == null) {
return;
}
container.addChild(m);
if (m.getObject() != null && m.getObject().isFavorite()) {
favorites.addChild(m);
}
});
// this is the root :)
return root;
}
@Reference(service = ILaunchObjectProvider.class, cardinality = ReferenceCardinality.MULTIPLE, policy = ReferencePolicy.DYNAMIC, policyOption = ReferencePolicyOption.GREEDY)
public void addLaunchObjectProvider(ILaunchObjectProvider svc) {
providers.add(svc);
svc.addUpdateListener(providerUpdateListener);
fireUpdate();
}
public void removeLaunchObjectProvider(ILaunchObjectProvider svc) {
providers.remove(svc);
svc.removeUpdateListener(providerUpdateListener);
fireUpdate();
}
@Reference(service = IWorkbench.class, cardinality = ReferenceCardinality.MANDATORY, policy = ReferencePolicy.STATIC, unbind = "unsetWorkbench")
public void setWorkbench(@SuppressWarnings("unused") IWorkbench svc) {
// this reference is just a marker to control startup order.
// this is required, otherwise this service activates so early, that the
// prompt for the workspace location is no longer shown (as the location
// is accessed indirectly before the prompt, which initializes it to a
// default).
}
public void unsetWorkbench(@SuppressWarnings("unused") IWorkbench svc) {
}
@Activate
public void activate() {
service = this;
}
@Deactivate
public void deactivate() {
service = null;
}
public void addUpdateListener(Runnable r) {
updateListeners.add(r);
}
public void removeUpdateListener(Runnable r) {
updateListeners.remove(r);
}
private void fireUpdate() {
updateListeners.forEach(Runnable::run);
}
public static LaunchViewModel getService() {
return service;
}
}
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