netconf/tools/netconf-testtool/src/main/java/org/opendaylight/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.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.Request;
  15 import com.ning.http.client.Response;
  16 import java.util.ArrayList;
  17 import java.util.concurrent.Semaphore;
  18 import org.opendaylight.netconf.test.tool.client.stress.ExecutionStrategy;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 public class AsyncExecutionStrategy implements ExecutionStrategy {
  23
  24     private static final Logger LOG = LoggerFactory.getLogger(AsyncExecutionStrategy.class);
  25
  26     private final Parameters params;
  27     private final ArrayList<Request> payloads;
  28     private final AsyncHttpClient asyncHttpClient;
  29     private final Semaphore semaphore;
  30
  31     AsyncExecutionStrategy(final Parameters params, final AsyncHttpClient asyncHttpClient,
  32                            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         LOG.info("Begin sending async requests");
  42
  43         for (final Request request : payloads) {
  44             try {
  45                 semaphore.acquire();
  46             } catch (InterruptedException e) {
  47                 LOG.warn("Semaphore acquire interrupted");
  48             }
  49             asyncHttpClient.executeRequest(request, new AsyncCompletionHandler<Response>() {
  50                 @Override
  51                 public STATE onStatusReceived(HttpResponseStatus status) throws Exception {
  52                     super.onStatusReceived(status);
  53                     if (status.getStatusCode() != 200 && status.getStatusCode() != 204) {
  54                         LOG.warn("Request failed, status code: {}", status.getStatusCode() + status.getStatusText());
  55                         LOG.warn("request: {}", request.toString());
  56                     }
  57                     return STATE.CONTINUE;
  58                 }
  59
  60                 @Override
  61                 public Response onCompleted(Response response) throws Exception {
  62                     semaphore.release();
  63                     return response;
  64                 }
  65             });
  66         }
  67         LOG.info("Requests sent, waiting for responses");
  68
  69         try {
  70             semaphore.acquire(RestPerfClient.throttle);
  71         } catch (InterruptedException e) {
  72             LOG.warn("Semaphore acquire interrupted");
  73         }
  74
  75         LOG.info("Responses received, ending...");
  76     }
  77 }