opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/compat/BackwardsCompatibleDataBroker.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.sal.dom.broker.impl.compat;
   9
  10 import javax.annotation.concurrent.ThreadSafe;
  11 import org.opendaylight.controller.md.sal.common.api.RegistrationListener;
  12 import org.opendaylight.controller.md.sal.common.api.data.DataCommitHandler;
  13 import org.opendaylight.controller.md.sal.common.api.data.DataCommitHandlerRegistration;
  14 import org.opendaylight.controller.md.sal.common.api.data.DataReader;
  15 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizer;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  17 import org.opendaylight.controller.sal.common.DataStoreIdentifier;
  18 import org.opendaylight.controller.sal.core.api.data.DataChangeListener;
  19 import org.opendaylight.controller.sal.core.api.data.DataModificationTransaction;
  20 import org.opendaylight.controller.sal.core.api.data.DataProviderService;
  21 import org.opendaylight.controller.sal.core.api.data.DataValidator;
  22 import org.opendaylight.controller.sal.core.api.model.SchemaService;
  23 import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
  24 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  25 import org.opendaylight.yangtools.concepts.Registration;
  26 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
  27 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  28 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  29 import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
  30
  31 @Deprecated
  32 @ThreadSafe
  33 public class BackwardsCompatibleDataBroker implements DataProviderService {
  34
  35     private final DOMDataBroker backingBroker;
  36     private volatile DataNormalizer normalizer;
  37     private final ListenerRegistration<SchemaContextListener> schemaReg;
  38
  39     public BackwardsCompatibleDataBroker(final DOMDataBroker newBiDataImpl, final SchemaService schemaService) {
  40         backingBroker = newBiDataImpl;
  41         schemaReg = schemaService.registerSchemaContextListener(new SchemaListener());
  42     }
  43
  44     @Override
  45     public CompositeNode readConfigurationData(final YangInstanceIdentifier legacyPath) {
  46         final BackwardsCompatibleTransaction<?> tx = BackwardsCompatibleTransaction.readOnlyTransaction(backingBroker.newReadOnlyTransaction(),normalizer);
  47         try {
  48             return tx.readConfigurationData(legacyPath);
  49         } finally {
  50             tx.commit();
  51         }
  52     }
  53
  54     @Override
  55     public CompositeNode readOperationalData(final YangInstanceIdentifier legacyPath) {
  56         final BackwardsCompatibleTransaction<?> tx = BackwardsCompatibleTransaction.readOnlyTransaction(backingBroker.newReadOnlyTransaction(),normalizer);
  57         try {
  58             return tx.readOperationalData(legacyPath);
  59         } finally {
  60             tx.commit();
  61         }
  62     }
  63
  64     @Override
  65     public DataModificationTransaction beginTransaction() {
  66         return BackwardsCompatibleTransaction.readWriteTransaction(backingBroker.newReadWriteTransaction(), normalizer);
  67     }
  68
  69     @Override
  70     public ListenerRegistration<DataChangeListener> registerDataChangeListener(final YangInstanceIdentifier legacyPath,
  71             final DataChangeListener listener) {
  72         final YangInstanceIdentifier normalizedPath = normalizer.toNormalized(legacyPath);
  73
  74         final TranslatingListenerInvoker translatingCfgListener =
  75                 TranslatingListenerInvoker.createConfig(listener, normalizer);
  76         translatingCfgListener.register(backingBroker, normalizedPath);
  77
  78         final TranslatingListenerInvoker translatingOpListener =
  79                 TranslatingListenerInvoker.createOperational(listener, normalizer);
  80         translatingOpListener.register(backingBroker, normalizedPath);
  81
  82         return new DelegateListenerRegistration(translatingCfgListener, translatingOpListener, listener);
  83     }
  84
  85     @Override
  86     public Registration registerCommitHandler(
  87             final YangInstanceIdentifier path, final DataCommitHandler<YangInstanceIdentifier, CompositeNode> commitHandler) {
  88         // FIXME Do real forwarding
  89         return new AbstractObjectRegistration<DataCommitHandler<YangInstanceIdentifier,CompositeNode>>(commitHandler) {
  90             @Override
  91             protected void removeRegistration() {
  92                 // NOOP
  93             }
  94         };
  95     }
  96
  97     @Override
  98     public ListenerRegistration<RegistrationListener<DataCommitHandlerRegistration<YangInstanceIdentifier, CompositeNode>>> registerCommitHandlerListener(
  99             final RegistrationListener<DataCommitHandlerRegistration<YangInstanceIdentifier, CompositeNode>> commitHandlerListener) {
 100         return null;
 101     }
 102
 103     // Obsolete functionality
 104
 105     @Override
 106     public void addValidator(final DataStoreIdentifier store, final DataValidator validator) {
 107         throw new UnsupportedOperationException();
 108     }
 109
 110     @Override
 111     public void removeValidator(final DataStoreIdentifier store, final DataValidator validator) {
 112         throw new UnsupportedOperationException();
 113     }
 114
 115     @Override
 116     public void addRefresher(final DataStoreIdentifier store, final DataRefresher refresher) {
 117         throw new UnsupportedOperationException();
 118     }
 119
 120     @Override
 121     public void removeRefresher(final DataStoreIdentifier store, final DataRefresher refresher) {
 122         throw new UnsupportedOperationException();
 123     }
 124
 125     @Override
 126     public Registration registerConfigurationReader(
 127             final YangInstanceIdentifier path, final DataReader<YangInstanceIdentifier, CompositeNode> reader) {
 128         throw new UnsupportedOperationException("Data Reader contract is not supported.");
 129     }
 130
 131     @Override
 132     public Registration registerOperationalReader(
 133             final YangInstanceIdentifier path, final DataReader<YangInstanceIdentifier, CompositeNode> reader) {
 134         throw new UnsupportedOperationException("Data Reader contract is not supported.");
 135     }
 136
 137     private static class DelegateListenerRegistration implements ListenerRegistration<DataChangeListener> {
 138         private final TranslatingListenerInvoker translatingCfgListener;
 139         private final TranslatingListenerInvoker translatingOpListener;
 140         private final DataChangeListener listener;
 141
 142         public DelegateListenerRegistration(final TranslatingListenerInvoker translatingCfgListener, final TranslatingListenerInvoker translatingOpListener, final DataChangeListener listener) {
 143             this.translatingCfgListener = translatingCfgListener;
 144             this.translatingOpListener = translatingOpListener;
 145             this.listener = listener;
 146         }
 147
 148         @Override
 149         public void close() {
 150             translatingCfgListener.close();
 151             translatingOpListener.close();
 152         }
 153
 154         @Override
 155         public DataChangeListener getInstance() {
 156             return listener;
 157         }
 158     }
 159
 160     private class SchemaListener implements SchemaContextListener {
 161
 162         @Override
 163         public void onGlobalContextUpdated(final SchemaContext ctx) {
 164             normalizer = new DataNormalizer(ctx);
 165         }
 166
 167     }
 168 }