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