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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.openapi.application.ex;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.util.Computable;
import com.intellij.openapi.util.Ref;
import org.jetbrains.annotations.NotNull;
public class ApplicationUtil {
// throws exception if can't grab read action right now
public static <T> T tryRunReadAction(@NotNull final Computable<T> computable) throws CannotRunReadActionException {
final Ref<T> result = new Ref<T>();
if (((ApplicationEx)ApplicationManager.getApplication()).tryRunReadAction(new Runnable() {
@Override
public void run() {
result.set(computable.compute());
}
})) {
return result.get();
}
throw new CannotRunReadActionException();
}
public static class CannotRunReadActionException extends RuntimeException{
@Override
public Throwable fillInStackTrace() {
return this;
}
}
}
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