- create with metrics false/true

- init metrics publisher only once

README.md

 ### Microservice Framework in JAVA
+## Version 1.2.1:
+- create with metrics false/true
+- init metrics publisher only once
 
 ## Version 1.2.0:
 - Add Graphite Repoter for metrics:

build.gradle

 group 'com.ipgallery.common'
-version '1.2.0'
+version '1.2.1'
 
 apply plugin: 'java'
 apply plugin: 'maven-publish'

src/main/java/microservice/io/impl/IRestClientRestImpl.java

@@ -32,6 +32,7 @@ import microservice.params.RestClientParams;
 public class IRestClientRestImpl implements ICommandClient
 {
 
+	public static final String HYSTRIX_PLUGIN_HYSTRIX_METRICS_PUBLISHER_IMPLEMENTATION = "hystrix.plugin.HystrixMetricsPublisher.implementation";
 	private static final int POLLING_DELAY = 500;
 
 	/*************************************************************************
@@ -220,7 +221,6 @@ public class IRestClientRestImpl implements ICommandClient
     
     
     /*********************************************************************************************************************************************/
-    
     private static final String COMMAND_ERROR = "Command Error: ";
 	RestClientParams clientParams = null;
 	SimpleRestClient httpRestClient = null;
@@ -240,15 +240,28 @@ public class IRestClientRestImpl implements ICommandClient
         httpRestClient.Initialize(clientParams.getMaxConnection());
         if (clientParams.isMetricsEnabled())
         {
-        	IMetricsFactoryImpl factoryImpl = (IMetricsFactoryImpl) IMetricsFactoryImpl.getInstance();
-        	HystrixMetricsPublisher publisher = new  HystrixCodaHaleMetricsPublisher(factoryImpl.getMetrics());
-        	HystrixPlugins.getInstance().registerMetricsPublisher(publisher);
+			initMetricsPublisher();
 //        	jsonListener = new MetricJsonListener();
 //        	poller = new HystrixMetricsPoller(jsonListener, POLLING_DELAY);
 //        	poller.start();
         }
 	}
 
+	private synchronized void initMetricsPublisher() {
+		String publisherStr = System.getProperty(HYSTRIX_PLUGIN_HYSTRIX_METRICS_PUBLISHER_IMPLEMENTATION);
+		if(publisherStr == null) {
+			try {
+				IMetricsFactoryImpl factoryImpl = (IMetricsFactoryImpl) IMetricsFactoryImpl.getInstance();
+				HystrixMetricsPublisher publisher = new HystrixCodaHaleMetricsPublisher(factoryImpl.getMetrics());
+				HystrixPlugins.getInstance().registerMetricsPublisher(publisher);
+				System.setProperty(HYSTRIX_PLUGIN_HYSTRIX_METRICS_PUBLISHER_IMPLEMENTATION, publisher.getClass().getName());
+			}
+			catch (IllegalStateException ise){
+
+			}
+		}
+	}
+
 	public IRestClientRestImpl withServiceDiscovery(IServiceDiscovery servDisco)
 	{
 		serviceDiscovery = Optional.ofNullable(servDisco);

src/main/java/microservice/params/RestClientParams.java

@@ -11,6 +11,12 @@ public class RestClientParams extends BaseClientParams
 		this.address = address;
 	}
 
+	public RestClientParams(String serviceName,boolean useCache,int cacheTimeout,String address, String cacheHost,boolean enableMetrics)
+	{
+		super(serviceName, useCache, cacheTimeout,enableMetrics,cacheHost);
+		this.address = address;
+	}
+
 	public RestClientParams(String serviceName,boolean useCache,int cacheTimeout,String address,String cacheHost, int maxConnection)
 	{
 		super(serviceName, useCache, cacheTimeout,true,cacheHost);

src/test/java/microservice/TestMicroClient.java

@@ -34,6 +34,7 @@ public class TestMicroClient
 		{
 			ICommandClient cmdClient = new IRestClientRestImpl(clientParams).withServiceDiscovery(serDisco);
 			client = new MicroserviceClient(cmdClient,clientParams);
+			new MicroserviceClient(new IRestClientRestImpl(clientParams),clientParams);
 			CommandParams cmdParams = new CommandParams("entities", "MCX/entities/lili/person", null, null, null);
 			System.out.println("Start Testing");
 			for (int i = 0 ; i < MAX_ITERATION; i++)