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/*
* Copyright 2000-2014 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 com.intellij.lifecycle;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.components.ApplicationComponent;
import com.intellij.openapi.components.ServiceManager;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.progress.ProcessCanceledException;
import com.intellij.openapi.project.Project;
import com.intellij.vcsUtil.Rethrow;
import org.jetbrains.annotations.NotNull;
public class PeriodicalTasksCloser implements ApplicationComponent {
private static final Logger LOG = Logger.getInstance("#com.intellij.lifecycle.PeriodicalTasksCloser");
private final Object myLock = new Object();
public static PeriodicalTasksCloser getInstance() {
return ApplicationManager.getApplication().getComponent(PeriodicalTasksCloser.class);
}
@Override
public void disposeComponent() {
}
@NotNull
@Override
public String getComponentName() {
return PeriodicalTasksCloser.class.getName();
}
@Override
public void initComponent() {
}
public <T> T safeGetComponent(@NotNull final Project project, final Class<T> componentClass) throws ProcessCanceledException {
T component = null;
try {
component = project.getComponent(componentClass);
}
catch (NullPointerException e) {
throwCanceledException(project, e);
} catch (AssertionError e) {
throwCanceledException(project, e);
}
if (component == null) {
if (project.isDefault()) {
LOG.info("no component in default project: " + componentClass.getName());
}
throwCanceledException(project, new NullPointerException());
}
return component;
}
public <T> T safeGetService(@NotNull final Project project, final Class<T> componentClass) throws ProcessCanceledException {
try {
T service = ServiceManager.getService(project, componentClass);
if (service == null && project.isDefault()) {
LOG.info("no service in default project: " + componentClass.getName());
}
return service;
}
catch (NullPointerException e) {
throwCanceledException(project, e);
} catch (AssertionError e) {
throwCanceledException(project, e);
}
return null;
}
private void throwCanceledException(final Project project, final Throwable t) {
synchronized (myLock) {
// allow NPE & assertion _catch_ only if project is closed and being disposed
if (project.isOpen()) {
Rethrow.reThrowRuntime(t);
}
}
throw new ProcessCanceledException();
}
}
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