opendaylight/netconf/netconf-testtool/src/main/java/org/opendaylight/controller/netconf/test/tool/client/http/perf/AsyncExecutionStrategy.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.netconf.test.tool.client.http.perf;
  10
  11 import com.ning.http.client.AsyncCompletionHandler;
  12 import com.ning.http.client.AsyncHttpClient;
  13 import com.ning.http.client.HttpResponseStatus;
  14 import com.ning.http.client.ListenableFuture;
  15 import com.ning.http.client.Request;
  16 import com.ning.http.client.Response;
  17 import java.util.ArrayList;
  18 import java.util.concurrent.Semaphore;
  19 import org.opendaylight.controller.netconf.test.tool.client.stress.ExecutionStrategy;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 public class AsyncExecutionStrategy implements ExecutionStrategy{
  24
  25     private static final Logger LOG = LoggerFactory.getLogger(AsyncExecutionStrategy.class);
  26
  27     private final Parameters params;
  28     private final ArrayList<Request> payloads;
  29     private final AsyncHttpClient asyncHttpClient;
  30     private final Semaphore semaphore;
  31
  32     AsyncExecutionStrategy(final Parameters params, final AsyncHttpClient asyncHttpClient, final ArrayList<Request> payloads) {
  33         this.params = params;
  34         this.asyncHttpClient = asyncHttpClient;
  35         this.payloads = payloads;
  36         this.semaphore = new Semaphore(RestPerfClient.throttle);
  37     }
  38
  39     @Override
  40     public void invoke() {
  41         final ArrayList<ListenableFuture<Response>> futures = new ArrayList<>();
  42         LOG.info("Begin sending async requests");
  43
  44         for (final Request request : payloads) {
  45             try {
  46                 semaphore.acquire();
  47             } catch (InterruptedException e) {
  48                 LOG.warn("Semaphore acquire interrupted");
  49             }
  50             futures.add(asyncHttpClient.executeRequest(request, new AsyncCompletionHandler<Response>() {
  51                 @Override
  52                 public STATE onStatusReceived(HttpResponseStatus status) throws Exception {
  53                     super.onStatusReceived(status);
  54                     if (status.getStatusCode() != 200 && status.getStatusCode() != 204) {
  55                         LOG.warn("Request failed, status code: {}", status.getStatusCode() + status.getStatusText());
  56                         LOG.warn("request: {}", request.toString());
  57                     }
  58                     return STATE.CONTINUE;
  59                 }
  60
  61                 @Override
  62                 public Response onCompleted(Response response) throws Exception {
  63                     semaphore.release();
  64                     return response;
  65                 }
  66             }));
  67         }
  68         LOG.info("Requests sent, waiting for responses");
  69
  70         try {
  71             semaphore.acquire(RestPerfClient.throttle);
  72         } catch (InterruptedException e) {
  73             LOG.warn("Semaphore acquire interrupted");
  74         }
  75
  76         LOG.info("Responses received, ending...");
  77     }
  78 }