com.google.gerrit.sshd.StreamCommandExecutorProvider Maven / Gradle / Ivy
// Copyright (C) 2010 The Android Open Source Project
//
// 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.google.gerrit.sshd;
import com.google.gerrit.server.config.GerritServerConfig;
import com.google.gerrit.server.git.WorkQueue;
import com.google.inject.Inject;
import com.google.inject.Provider;
import java.util.concurrent.ThreadFactory;
import org.eclipse.jgit.lib.Config;
class StreamCommandExecutorProvider implements Provider {
private final int poolSize;
private final WorkQueue queues;
@Inject
StreamCommandExecutorProvider(@GerritServerConfig final Config config, final WorkQueue wq) {
final int cores = Runtime.getRuntime().availableProcessors();
poolSize = config.getInt("sshd", "streamThreads", cores + 1);
queues = wq;
}
@Override
public WorkQueue.Executor get() {
final WorkQueue.Executor executor;
executor = queues.createQueue(poolSize, "SSH-Stream-Worker", true);
final ThreadFactory parent = executor.getThreadFactory();
executor.setThreadFactory(
new ThreadFactory() {
@Override
public Thread newThread(final Runnable task) {
final Thread t = parent.newThread(task);
t.setPriority(Thread.MIN_PRIORITY);
return t;
}
});
return executor;
}
}