applications/bulk-o-matic/src/main/java/org/opendaylight/openflowplugin/applications/bulk/o/matic/FlowWriterDirectOFRpc.java

   1 /*
   2  * Copyright (c) 2016 Ericsson 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.applications.bulk.o.matic;
   9
  10 import com.google.common.base.Optional;
  11 import java.util.Collections;
  12 import java.util.HashSet;
  13 import java.util.List;
  14 import java.util.Set;
  15 import java.util.concurrent.ExecutorService;
  16 import java.util.concurrent.TimeUnit;
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowInput;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.AddFlowInputBuilder;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.FlowTableRef;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.service.rev130819.SalFlowService;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.FlowRef;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.flow.Match;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 public class FlowWriterDirectOFRpc {
  37
  38     private static final Logger LOG = LoggerFactory.getLogger(FlowWriterDirectOFRpc.class);
  39     private final DataBroker dataBroker;
  40     private final SalFlowService flowService;
  41     private final ExecutorService flowPusher;
  42     private static final long PAUSE_BETWEEN_BATCH_MILLIS = 40;
  43
  44     public FlowWriterDirectOFRpc(final DataBroker dataBroker,
  45                                  final SalFlowService salFlowService,
  46                                  final ExecutorService flowPusher) {
  47         this.dataBroker = dataBroker;
  48         this.flowService = salFlowService;
  49         this.flowPusher = flowPusher;
  50     }
  51
  52
  53     public void rpcFlowAdd(String dpId, int flowsPerDpn, int batchSize){
  54         if (!getAllNodes().isEmpty() && getAllNodes().contains(dpId)) {
  55             FlowRPCHandlerTask addFlowRpcTask = new FlowRPCHandlerTask(dpId, flowsPerDpn, batchSize);
  56             flowPusher.execute(addFlowRpcTask);
  57         }
  58     }
  59
  60     public void rpcFlowAddAll(int flowsPerDpn, int batchSize){
  61         Set<String> nodeIdSet = getAllNodes();
  62         if (nodeIdSet.isEmpty()){
  63             LOG.warn("No nodes seen on OPERATIONAL DS. Aborting !!!!");
  64         }
  65         else{
  66             for (String dpId : nodeIdSet){
  67                 LOG.info("Starting FlowRPCTaskHandler for switch id {}", dpId);
  68                 FlowRPCHandlerTask addFlowRpcTask = new FlowRPCHandlerTask(dpId, flowsPerDpn, batchSize);
  69                 flowPusher.execute(addFlowRpcTask);
  70             }
  71         }
  72     }
  73
  74     private Set<String> getAllNodes(){
  75
  76         Set<String> nodeIds = new HashSet<>();
  77         InstanceIdentifier<Nodes> nodes = InstanceIdentifier.create(Nodes.class);
  78         ReadOnlyTransaction rTx = dataBroker.newReadOnlyTransaction();
  79
  80         try {
  81             Optional<Nodes> nodesDataNode = rTx.read(LogicalDatastoreType.OPERATIONAL, nodes).checkedGet();
  82             if (nodesDataNode.isPresent()){
  83                 List<Node> nodesCollection = nodesDataNode.get().getNode();
  84                 if (nodesCollection != null && !nodesCollection.isEmpty()) {
  85                     for (Node node : nodesCollection) {
  86                         LOG.info("Switch with ID {} discovered !!", node.getId().getValue());
  87                         nodeIds.add(node.getId().getValue());
  88                     }
  89                 }
  90                 else{
  91                     return Collections.emptySet();
  92                 }
  93             }
  94             else{
  95                 return Collections.emptySet();
  96             }
  97         }
  98         catch(ReadFailedException rdFailedException){
  99             LOG.error("Failed to read connected nodes {}", rdFailedException);
 100         }
 101         return nodeIds;
 102     }
 103
 104     public class FlowRPCHandlerTask implements Runnable {
 105         private final String dpId;
 106         private final int flowsPerDpn;
 107         private final int batchSize;
 108
 109         public FlowRPCHandlerTask(final String dpId,
 110                                   final int flowsPerDpn,
 111                                   final int batchSize){
 112             this.dpId = dpId;
 113             this.flowsPerDpn = flowsPerDpn;
 114             this.batchSize = batchSize;
 115         }
 116
 117         @Override
 118         public void run() {
 119
 120             short tableId = (short)1;
 121             int initFlowId = 500;
 122
 123             for (int i=1; i<= flowsPerDpn; i++){
 124
 125                 String flowId = Integer.toString(initFlowId + i);
 126
 127                 LOG.debug("Framing AddFlowInput for flow-id {}", flowId);
 128
 129                 Match match = BulkOMaticUtils.getMatch(i);
 130                 InstanceIdentifier<Node> nodeIId = BulkOMaticUtils.getFlowCapableNodeId(dpId);
 131                 InstanceIdentifier<Table> tableIId = BulkOMaticUtils.getTableId(tableId, dpId);
 132                 InstanceIdentifier<Flow> flowIId = BulkOMaticUtils.getFlowId(tableIId, flowId);
 133
 134                 Flow flow = BulkOMaticUtils.buildFlow(tableId, flowId, match);
 135
 136                 AddFlowInputBuilder builder = new AddFlowInputBuilder(flow);
 137                 builder.setNode(new NodeRef(nodeIId));
 138                 builder.setFlowTable(new FlowTableRef(tableIId));
 139                 builder.setFlowRef(new FlowRef(flowIId));
 140
 141                 AddFlowInput addFlowInput = builder.build();
 142
 143                 LOG.debug("RPC invocation for adding flow-id {} with input {}", flowId,
 144                         addFlowInput.toString());
 145                 flowService.addFlow(addFlowInput);
 146
 147                 if (i % batchSize == 0) {
 148                     try {
 149                         LOG.info("Pausing for {} MILLISECONDS after batch of {} RPC invocations",
 150                                 PAUSE_BETWEEN_BATCH_MILLIS, batchSize);
 151
 152                         TimeUnit.MILLISECONDS.sleep(PAUSE_BETWEEN_BATCH_MILLIS);
 153                     } catch (InterruptedException iEx) {
 154                         LOG.error("Interrupted while pausing after batched push upto {}. Ex {}", i, iEx);
 155                     }
 156                 }
 157             }
 158         }
 159     }
 160 }