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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.cassandra.clients;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import com.google.common.util.concurrent.ThreadFactoryBuilder;

/**
 * A class that holds Executors used during the Cassandra Analytics execution
 */
public final class ExecutorHolder
{
    // TODO: Make the size configurable
    public static final ExecutorService EXECUTOR_SERVICE = Executors.newFixedThreadPool(64,
            new ThreadFactoryBuilder().setNameFormat("cassandra-analytics-%d")
                                      .setDaemon(true)
                                      .build());

    private ExecutorHolder()
    {
        throw new IllegalStateException(getClass() + " is static utility class and shall not be instantiated");
    }
}