test-common/src/main/java/org/opendaylight/openflowplugin/testcommon/DropTestRpcSender.java

   1 /**
   2  * Copyright (c) 2013 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 package org.opendaylight.openflowplugin.testcommon;
   9
  10 import java.math.BigInteger;
  11 import java.util.concurrent.Callable;
  12 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
  13 import org.opendaylight.openflowplugin.common.wait.SimpleTaskRetryLooper;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowInput;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowInputBuilder;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowCookie;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowModFlags;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Instructions;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Match;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  25 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.opendaylight.yangtools.yang.binding.NotificationListener;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 /**
  32  * provides cbench responder behavior: upon packetIn arrival addFlow action is sent out to
  33  * device using {@link SalFlowService} strategy
  34  */
  35 public class DropTestRpcSender extends AbstractDropTest {
  36     private static final Logger LOG = LoggerFactory.getLogger(DropTestRpcSender.class);
  37
  38     private SalFlowService flowService;
  39
  40     /**
  41      * @param flowService the flowService to set
  42      */
  43     public void setFlowService(SalFlowService flowService) {
  44         this.flowService = flowService;
  45     }
  46
  47     private static final ThreadLocal<AddFlowInputBuilder> BUILDER = new ThreadLocal<AddFlowInputBuilder>() {
  48         @Override
  49         protected AddFlowInputBuilder initialValue() {
  50             final AddFlowInputBuilder fb = new AddFlowInputBuilder();
  51
  52             fb.setPriority(PRIORITY);
  53             fb.setBufferId(BUFFER_ID);
  54
  55             final FlowCookie cookie = new FlowCookie(BigInteger.TEN);
  56             fb.setCookie(cookie);
  57             fb.setCookieMask(cookie);
  58             fb.setTableId(TABLE_ID);
  59             fb.setHardTimeout(HARD_TIMEOUT);
  60             fb.setIdleTimeout(IDLE_TIMEOUT);
  61             fb.setFlags(new FlowModFlags(false, false, false, false, false));
  62
  63             return fb;
  64         }
  65     };
  66
  67     private NotificationProviderService notificationService;
  68
  69     private ListenerRegistration<NotificationListener> notificationRegistration;
  70
  71     /**
  72      * start listening on packetIn
  73      */
  74     public void start() {
  75         SimpleTaskRetryLooper looper = new SimpleTaskRetryLooper(STARTUP_LOOP_TICK,
  76                 STARTUP_LOOP_MAX_RETRIES);
  77         try {
  78             notificationRegistration = looper.loopUntilNoException(new Callable<ListenerRegistration<NotificationListener>>() {
  79                 @Override
  80                 public ListenerRegistration<NotificationListener> call() throws Exception {
  81                     return notificationService.registerNotificationListener(DropTestRpcSender.this);
  82                 }
  83             });
  84         } catch (Exception e) {
  85             LOG.warn("DropTest sender notification listener registration fail!");
  86             LOG.debug("DropTest sender notification listener registration fail! ..", e);
  87             throw new IllegalStateException("DropTest startup fail! Try again later.", e);
  88         }
  89     }
  90
  91     @Override
  92     protected void processPacket(final NodeKey node, final Match match, final Instructions instructions) {
  93         final AddFlowInputBuilder fb = BUILDER.get();
  94
  95         // Finally build our flow
  96         fb.setMatch(match);
  97         fb.setInstructions(instructions);
  98         //fb.setId(new FlowId(Long.toString(fb.hashCode)));
  99
 100         // Construct the flow instance id
 101         final InstanceIdentifier<Node> flowInstanceId = InstanceIdentifier
 102                 // File under nodes
 103                 .builder(Nodes.class)
 104                 // A particular node identified by nodeKey
 105                 .child(Node.class, node).build();
 106         fb.setNode(new NodeRef(flowInstanceId));
 107
 108         // Add flow
 109         AddFlowInput flow = fb.build();
 110         if (LOG.isDebugEnabled()) {
 111             LOG.debug("onPacketReceived - About to write flow (via SalFlowService) {}", flow);
 112         }
 113         flowService.addFlow(flow);
 114     }
 115
 116     /**
 117      * @param notificationService
 118      */
 119     public void setNotificationService(NotificationProviderService notificationService) {
 120         this.notificationService = notificationService;
 121     }
 122
 123     @Override
 124     public void close() {
 125         try {
 126             LOG.debug("DropTestProvider stopped.");
 127             if (notificationRegistration != null) {
 128                 notificationRegistration.close();
 129             }
 130         } catch (Exception e) {
 131             LOG.error("unregistration of notification listener failed", e);
 132         }
 133     }
 134 }