opendaylight/md-sal/compatibility/flow-management-compatibility/src/main/java/org/opendaylight/controller/md/frm/compatibility/FlowCommitTransaction.java

   1 /**
   2  * Copyright (c) 2014 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.controller.md.frm.compatibility;
   9
  10 import java.util.ArrayList;
  11 import java.util.Collections;
  12 import java.util.HashSet;
  13 import java.util.List;
  14 import java.util.Map.Entry;
  15 import java.util.Set;
  16
  17 import org.opendaylight.controller.forwardingrulesmanager.FlowConfig;
  18 import org.opendaylight.controller.md.sal.common.api.data.DataCommitHandler.DataCommitTransaction;
  19 import org.opendaylight.controller.md.sal.common.api.data.DataModification;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.config.rev130819.flows.Flow;
  21 import org.opendaylight.yangtools.yang.binding.DataObject;
  22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  23 import org.opendaylight.yangtools.yang.common.RpcResult;
  24
  25 public class FlowCommitTransaction implements DataCommitTransaction<InstanceIdentifier<? extends DataObject>, DataObject> {
  26
  27     private final DataModification<InstanceIdentifier<? extends DataObject>, DataObject> modification;
  28     private final HashSet<FlowConfig> toAdd = new HashSet<FlowConfig>();
  29     private final FRMRuntimeDataProvider flowManager;
  30     private Iterable<FlowConfig> toUpdate;
  31     private Iterable<FlowConfig> toRemove;
  32
  33     public FlowCommitTransaction(
  34             final FRMRuntimeDataProvider flowManager,
  35             final DataModification<InstanceIdentifier<? extends DataObject>, DataObject> modification) {
  36         this.flowManager = flowManager;
  37         this.modification = modification;
  38         this.processModification();
  39     }
  40
  41     @Override
  42     public RpcResult<Void> finish() throws IllegalStateException {
  43         return this.flowManager.finish(this);
  44     }
  45
  46     @Override
  47     public RpcResult<Void> rollback() throws IllegalStateException {
  48         return this.flowManager.rollback(this);
  49     }
  50
  51     public void processModification() {
  52         final Set<Entry<InstanceIdentifier<? extends DataObject>, DataObject>> updated =
  53                 this.modification.getUpdatedConfigurationData().entrySet();
  54         final List<FlowConfig> forUpdate = new ArrayList<FlowConfig>(updated.size());
  55
  56         if (updated != null && !(updated.isEmpty())) {
  57             for (Entry<InstanceIdentifier<? extends DataObject>, DataObject> entry : updated) {
  58                 if (FlowConfigMapping.isFlowPath(entry.getKey())) {
  59                     forUpdate.add(FlowConfigMapping.toFlowConfig((Flow) entry.getValue()));
  60                 }
  61             }
  62         }
  63         this.toUpdate = Collections.unmodifiableCollection(forUpdate);
  64
  65         final Set<InstanceIdentifier<? extends DataObject>> removedConfigurationData =
  66                 this.modification.getRemovedConfigurationData();
  67         final List<FlowConfig> forRemove = new ArrayList<FlowConfig>(removedConfigurationData.size());
  68
  69         if (removedConfigurationData != null && !(removedConfigurationData.isEmpty())) {
  70             for (InstanceIdentifier<? extends DataObject> data : removedConfigurationData) {
  71                 if (FlowConfigMapping.isFlowPath(data)) {
  72                     forRemove.add(FlowConfigMapping.toFlowConfig(data));
  73                 }
  74             }
  75         }
  76         this.toRemove = Collections.unmodifiableCollection(forRemove);
  77     }
  78
  79     @Override
  80     public DataModification<InstanceIdentifier<? extends DataObject>, DataObject> getModification() {
  81         return this.modification;
  82     }
  83
  84     public FRMRuntimeDataProvider getFlowManager() {
  85         return this.flowManager;
  86     }
  87
  88     public HashSet<FlowConfig> getToAdd() {
  89         return this.toAdd;
  90     }
  91
  92     public Iterable<FlowConfig> getToUpdate() {
  93         return this.toUpdate;
  94     }
  95
  96     public Iterable<FlowConfig> getToRemove() {
  97         return this.toRemove;
  98     }
  99 }