/*
* Copyright 2003-2011 JetBrains s.r.o.
*
* Licensed 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 jetbrains.mps.project;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
/**
* Evgeny Gryaznov, 9/29/11
*
* TODO must be core component not singleton
*/
public final class ProjectManager {
private static final ProjectManager INSTANCE = new ProjectManager();
private final List<ProjectManagerListener> myListeners = new CopyOnWriteArrayList<ProjectManagerListener>();
public static ProjectManager getInstance() {
return INSTANCE;
}
private final List<Project> myOpenedProjects = new ArrayList<Project>();
public List<Project> getOpenedProjects() {
synchronized (myOpenedProjects) {
return Collections.unmodifiableList(myOpenedProjects);
}
}
void projectOpened(Project p) {
synchronized (myOpenedProjects) {
myOpenedProjects.add(p);
for (ProjectManagerListener listener : myListeners) {
listener.projectOpened(p);
}
}
}
void projectClosed(Project p) {
synchronized (myOpenedProjects) {
for (ProjectManagerListener listener : myListeners) {
listener.projectClosed(p);
}
myOpenedProjects.remove(p);
}
}
public void addProjectListener(@NotNull ProjectManagerListener listener) {
myListeners.add(listener);
}
public void removeProjectListener(@NotNull ProjectManagerListener listener) {
myListeners.remove(listener);
}
}