Bug 2368: MD-SAL FRM may update/remove unexpected flow entries.

[controller.git] / opendaylight / md-sal / forwardingrules-manager / src / main / java / org / opendaylight / controller / frm / impl / FlowForwarder.java

diff --git a/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/impl/FlowForwarder.java b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/impl/FlowForwarder.java
index 3196cbe5cada579a2d47303984e484686b57346b..0d973d6f3b6b995aa17df3cb207fc069c02898f3 100644 (file)
--- a/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/impl/FlowForwarder.java
+++ b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/impl/FlowForwarder.java
@@ -1,4 +1,4 @@
-/**ab
+/**
  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
  *
  * This program and the accompanying materials are made available under the
@@ -99,7 +99,13 @@ public class FlowForwarder extends AbstractListeningCommiter<Flow> {
             builder.setFlowRef(new FlowRef(identifier));
             builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
             builder.setFlowTable(new FlowTableRef(nodeIdent.child(Table.class, tableKey)));
-            builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
+
+            // This method is called only when a given flow object has been
+            // removed from datastore. So FRM always needs to set strict flag
+            // into remove-flow input so that only a flow entry associated with
+            // a given flow object is removed.
+            builder.setTransactionUri(new Uri(provider.getNewTransactionId())).
+                setStrict(Boolean.TRUE);
             provider.getSalFlowService().removeFlow(builder.build());
         }
     }
@@ -116,8 +122,13 @@ public class FlowForwarder extends AbstractListeningCommiter<Flow> {
             builder.setNode(new NodeRef(nodeIdent.firstIdentifierOf(Node.class)));
             builder.setFlowRef(new FlowRef(identifier));
             builder.setTransactionUri(new Uri(provider.getNewTransactionId()));
-            builder.setUpdatedFlow((new UpdatedFlowBuilder(update)).build());
-            builder.setOriginalFlow((new OriginalFlowBuilder(original)).build());
+
+            // This method is called only when a given flow object in datastore
+            // has been updated. So FRM always needs to set strict flag into
+            // update-flow input so that only a flow entry associated with
+            // a given flow object is updated.
+            builder.setUpdatedFlow((new UpdatedFlowBuilder(update)).setStrict(Boolean.TRUE).build());
+            builder.setOriginalFlow((new OriginalFlowBuilder(original)).setStrict(Boolean.TRUE).build());
 
             provider.getSalFlowService().updateFlow(builder.build());
         }
@@ -149,7 +160,7 @@ public class FlowForwarder extends AbstractListeningCommiter<Flow> {
     private boolean tableIdValidationPrecondition (final TableKey tableKey, final Flow flow) {
         Preconditions.checkNotNull(tableKey, "TableKey can not be null or empty!");
         Preconditions.checkNotNull(flow, "Flow can not be null or empty!");
-        if (flow.getTableId() != tableKey.getId()) {
+        if (! tableKey.getId().equals(flow.getTableId())) {
             LOG.error("TableID in URI tableId={} and in palyload tableId={} is not same.",
                     flow.getTableId(), tableKey.getId());
             return false;