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

   1 /*
   2  * Copyright (c) 2016, 2017 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, final SalFlowService salFlowService,
  45             final ExecutorService flowPusher) {
  46         this.dataBroker = dataBroker;
  47         this.flowService = salFlowService;
  48         this.flowPusher = flowPusher;
  49     }
  50
  51     public void rpcFlowAdd(String dpId, int flowsPerDpn, int batchSize) {
  52         if (!getAllNodes().isEmpty() && getAllNodes().contains(dpId)) {
  53             FlowRPCHandlerTask addFlowRpcTask = new FlowRPCHandlerTask(dpId, flowsPerDpn, batchSize);
  54             flowPusher.execute(addFlowRpcTask);
  55         }
  56     }
  57
  58     public void rpcFlowAddAll(int flowsPerDpn, int batchSize) {
  59         Set<String> nodeIdSet = getAllNodes();
  60         if (nodeIdSet.isEmpty()) {
  61             LOG.warn("No nodes seen on OPERATIONAL DS. Aborting !!!!");
  62         } else {
  63             for (String dpId : nodeIdSet) {
  64                 LOG.info("Starting FlowRPCTaskHandler for switch id {}", dpId);
  65                 FlowRPCHandlerTask addFlowRpcTask = new FlowRPCHandlerTask(dpId, flowsPerDpn, batchSize);
  66                 flowPusher.execute(addFlowRpcTask);
  67             }
  68         }
  69     }
  70
  71     private Set<String> getAllNodes() {
  72
  73         Set<String> nodeIds = new HashSet<>();
  74         InstanceIdentifier<Nodes> nodes = InstanceIdentifier.create(Nodes.class);
  75         ReadOnlyTransaction readOnlyTransaction = dataBroker.newReadOnlyTransaction();
  76
  77         try {
  78             Optional<Nodes> nodesDataNode = readOnlyTransaction.read(LogicalDatastoreType.OPERATIONAL, nodes)
  79                     .checkedGet();
  80             if (nodesDataNode.isPresent()) {
  81                 List<Node> nodesCollection = nodesDataNode.get().getNode();
  82                 if (nodesCollection != null && !nodesCollection.isEmpty()) {
  83                     for (Node node : nodesCollection) {
  84                         LOG.info("Switch with ID {} discovered !!", node.getId().getValue());
  85                         nodeIds.add(node.getId().getValue());
  86                     }
  87                 } else {
  88                     return Collections.emptySet();
  89                 }
  90             } else {
  91                 return Collections.emptySet();
  92             }
  93         } catch (ReadFailedException rdFailedException) {
  94             LOG.error("Failed to read connected nodes {}", rdFailedException);
  95         }
  96         return nodeIds;
  97     }
  98
  99     public class FlowRPCHandlerTask implements Runnable {
 100         private final String dpId;
 101         private final int flowsPerDpn;
 102         private final int batchSize;
 103
 104         public FlowRPCHandlerTask(final String dpId, final int flowsPerDpn, final int batchSize) {
 105             this.dpId = dpId;
 106             this.flowsPerDpn = flowsPerDpn;
 107             this.batchSize = batchSize;
 108         }
 109
 110         @Override
 111         public void run() {
 112
 113             short tableId = (short) 1;
 114             int initFlowId = 500;
 115
 116             for (int i = 1; i <= flowsPerDpn; i++) {
 117
 118                 String flowId = Integer.toString(initFlowId + i);
 119
 120                 LOG.debug("Framing AddFlowInput for flow-id {}", flowId);
 121
 122                 Match match = BulkOMaticUtils.getMatch(i);
 123                 InstanceIdentifier<Node> nodeIId = BulkOMaticUtils.getFlowCapableNodeId(dpId);
 124                 InstanceIdentifier<Table> tableIId = BulkOMaticUtils.getTableId(tableId, dpId);
 125                 InstanceIdentifier<Flow> flowIId = BulkOMaticUtils.getFlowId(tableIId, flowId);
 126
 127                 Flow flow = BulkOMaticUtils.buildFlow(tableId, flowId, match);
 128
 129                 AddFlowInputBuilder builder = new AddFlowInputBuilder(flow);
 130                 builder.setNode(new NodeRef(nodeIId));
 131                 builder.setFlowTable(new FlowTableRef(tableIId));
 132                 builder.setFlowRef(new FlowRef(flowIId));
 133
 134                 AddFlowInput addFlowInput = builder.build();
 135
 136                 LOG.debug("RPC invocation for adding flow-id {} with input {}", flowId, addFlowInput.toString());
 137                 flowService.addFlow(addFlowInput);
 138
 139                 if (i % batchSize == 0) {
 140                     try {
 141                         LOG.info("Pausing for {} MILLISECONDS after batch of {} RPC invocations",
 142                                 PAUSE_BETWEEN_BATCH_MILLIS, batchSize);
 143
 144                         TimeUnit.MILLISECONDS.sleep(PAUSE_BETWEEN_BATCH_MILLIS);
 145                     } catch (InterruptedException iEx) {
 146                         LOG.error("Interrupted while pausing after batched push upto {}. Ex {}", i, iEx);
 147                     }
 148                 }
 149             }
 150         }
 151     }
 152 }