opendaylight/md-sal/compatibility/flow-management-compatibility/src/main/java/org/opendaylight/controller/md/frm/compatibility/FRMRuntimeDataProvider.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.Collections;
  11
  12 import org.opendaylight.controller.forwardingrulesmanager.FlowConfig;
  13 import org.opendaylight.controller.forwardingrulesmanager.IForwardingRulesManager;
  14 import org.opendaylight.controller.md.sal.common.api.data.DataChangeListener;
  15 import org.opendaylight.controller.md.sal.common.api.data.DataCommitHandler;
  16 import org.opendaylight.controller.md.sal.common.api.data.DataModification;
  17 import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
  18 import org.opendaylight.controller.sal.binding.api.data.RuntimeDataProvider;
  19 import org.opendaylight.controller.sal.common.util.Arguments;
  20 import org.opendaylight.controller.sal.common.util.Rpcs;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.config.rev130819.Flows;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.config.rev130819.flows.FlowKey;
  23 import org.opendaylight.yangtools.concepts.Registration;
  24 import org.opendaylight.yangtools.yang.binding.DataObject;
  25 import org.opendaylight.yangtools.yang.binding.Identifier;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.IdentifiableItem;
  28 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument;
  29 import org.opendaylight.yangtools.yang.common.RpcError;
  30 import org.opendaylight.yangtools.yang.common.RpcResult;
  31
  32 import com.google.common.base.Objects;
  33 import com.google.common.base.Preconditions;
  34
  35 public class FRMRuntimeDataProvider implements RuntimeDataProvider, DataCommitHandler<InstanceIdentifier<? extends DataObject>,DataObject> {
  36
  37     private final static InstanceIdentifier<Flows> FLOWS_PATH = InstanceIdentifier.<Flows> builder(Flows.class).toInstance();
  38
  39     private final FlowManagementReader configuration = new ConfigurationReader();
  40     private DataChangeListener<InstanceIdentifier<? extends DataObject>, DataObject> changeListener;
  41     private DataProviderService dataService;
  42     private IForwardingRulesManager manager;
  43
  44     public Registration<DataCommitHandler<InstanceIdentifier<? extends DataObject>, DataObject>> init() {
  45         return this.dataService.registerCommitHandler(FRMRuntimeDataProvider.FLOWS_PATH, this);
  46     }
  47
  48     @Override
  49     public DataObject readConfigurationData(final InstanceIdentifier<? extends DataObject> path) {
  50         return this.readFrom(this.configuration, path);
  51     }
  52
  53     @Override
  54     public DataObject readOperationalData(final InstanceIdentifier<? extends DataObject> path) {
  55         return this.readFrom(this.configuration, path);
  56     }
  57
  58     public DataObject readFrom(final FlowManagementReader store, final InstanceIdentifier<? extends DataObject> path) {
  59         if (Objects.equal(FRMRuntimeDataProvider.FLOWS_PATH, path)) {
  60             return store.readAllFlows();
  61         }
  62         if (FRMRuntimeDataProvider.FLOWS_PATH.contains(path)) {
  63             return store.readFlow(this.toFlowKey(path));
  64         }
  65         return null;
  66     }
  67
  68     @Override
  69     public FlowCommitTransaction requestCommit(final DataModification<InstanceIdentifier<? extends DataObject>, DataObject> modification) {
  70         return new FlowCommitTransaction(this, modification);
  71     }
  72
  73     public FlowKey toFlowKey(final InstanceIdentifier<? extends DataObject> identifier) {
  74         Preconditions.<InstanceIdentifier<? extends DataObject>> checkNotNull(identifier);
  75
  76         Iterable<PathArgument> path = identifier.getPathArguments();
  77         PathArgument get = path.iterator().next();
  78         final Identifier itemKey = Arguments.<IdentifiableItem> checkInstanceOf(get, IdentifiableItem.class).getKey();
  79         return Arguments.<FlowKey> checkInstanceOf(itemKey, FlowKey.class);
  80     }
  81
  82     public RpcResult<Void> finish(final FlowCommitTransaction transaction) {
  83         Iterable<FlowConfig> toRemove = transaction.getToRemove();
  84         for (final FlowConfig flow : toRemove) {
  85             this.manager.removeStaticFlow(flow.getName(), flow.getNode());
  86         }
  87         Iterable<FlowConfig> toUpdate = transaction.getToUpdate();
  88         for (final FlowConfig flow : toUpdate) {
  89             this.manager.removeStaticFlow(flow.getName(), flow.getNode());
  90             this.manager.addStaticFlow(flow);
  91         }
  92         return Rpcs.<Void> getRpcResult(true, null, Collections.<RpcError> emptySet());
  93     }
  94
  95     public RpcResult<Void> rollback(final FlowCommitTransaction transaction) {
  96         return null;
  97     }
  98
  99     public DataProviderService getDataService() {
 100         return this.dataService;
 101     }
 102
 103     public void setDataService(final DataProviderService dataService) {
 104         this.dataService = dataService;
 105     }
 106
 107     public DataChangeListener<InstanceIdentifier<? extends DataObject>, DataObject> getChangeListener() {
 108         return this.changeListener;
 109     }
 110
 111     public void setChangeListener(final DataChangeListener<InstanceIdentifier<? extends DataObject>, DataObject> changeListener) {
 112         this.changeListener = changeListener;
 113     }
 114
 115     public IForwardingRulesManager getManager() {
 116         return this.manager;
 117     }
 118
 119     public void setManager(final IForwardingRulesManager manager) {
 120         this.manager = manager;
 121     }
 122 }