io.grpc.internal.LogExceptionRunnable Maven / Gradle / Ivy
/*
* Copyright 2016 The gRPC Authors
*
* 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 io.grpc.internal;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.base.Throwables;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* A simple wrapper for a {@link Runnable} that logs any exception thrown by it, before
* re-throwing it.
*/
public final class LogExceptionRunnable implements Runnable {
private static final Logger log = Logger.getLogger(LogExceptionRunnable.class.getName());
private final Runnable task;
public LogExceptionRunnable(Runnable task) {
this.task = checkNotNull(task, "task");
}
@Override
public void run() {
try {
task.run();
} catch (Throwable t) {
log.log(Level.SEVERE, "Exception while executing runnable " + task, t);
Throwables.throwIfUnchecked(t);
throw new AssertionError(t);
}
}
@Override
public String toString() {
return "LogExceptionRunnable(" + task + ")";
}
}