Copyright 2015 Netflix, Inc.
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.
/**
 * Copyright 2015 Netflix, Inc.
 *
 * 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.netflix.hystrix;

import java.util.concurrent.atomic.AtomicInteger;

Class with global statistics on Hystrix runtime behavior.
All of the data available via this class is static and scoped at the JVM level
/**
 * Class with global statistics on Hystrix runtime behavior.
 * All of the data available via this class is static and scoped at the JVM level
 */
public class HystrixCounters {
    private static final AtomicInteger concurrentThreadsExecuting = new AtomicInteger(0);

    /* package-private */ static int incrementGlobalConcurrentThreads() {
        return concurrentThreadsExecuting.incrementAndGet();
    }

    /* package-private */ static int decrementGlobalConcurrentThreads() {
        return concurrentThreadsExecuting.decrementAndGet();
    }

    
Return the number of currently-executing Hystrix threads
Returns:
number of currently-executing Hystrix threads/**
     * Return the number of currently-executing Hystrix threads
     * @return number of currently-executing Hystrix threads
     */
    public static int getGlobalConcurrentThreadsExecuting() {
        return concurrentThreadsExecuting.get();
    }

    
Return the number of unique HystrixCommands that have been registered 
Returns:
number of unique HystrixCommands that have been registered/**
     * Return the number of unique {@link HystrixCommand}s that have been registered
     * @return number of unique {@link HystrixCommand}s that have been registered
     */
    public static int getCommandCount() {
        return HystrixCommandKey.Factory.getCommandCount();
    }

    
Return the number of unique HystrixThreadPools that have been registered 
Returns:
number of unique HystrixThreadPools that have been registered/**
     * Return the number of unique {@link HystrixThreadPool}s that have been registered
     * @return number of unique {@link HystrixThreadPool}s that have been registered
     */
    public static int getThreadPoolCount() {
        return HystrixThreadPoolKey.Factory.getThreadPoolCount();
    }

    
Return the number of unique HystrixCommandGroupKeys that have been registered 
Returns:
number of unique HystrixCommandGroupKeys that have been registered/**
     * Return the number of unique {@link HystrixCommandGroupKey}s that have been registered
     * @return number of unique {@link HystrixCommandGroupKey}s that have been registered
     */
    public static int getGroupCount() {
        return HystrixCommandGroupKey.Factory.getGroupCount();
    }
}