opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/compat/BackwardsCompatibleDataBroker.java

   1 package org.opendaylight.controller.md.sal.dom.broker.impl.compat;
   2
   3 import org.opendaylight.controller.md.sal.common.api.RegistrationListener;
   4 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
   5 import org.opendaylight.controller.md.sal.common.api.data.DataChangeEvent;
   6 import org.opendaylight.controller.md.sal.common.api.data.DataCommitHandler;
   7 import org.opendaylight.controller.md.sal.common.api.data.DataCommitHandlerRegistration;
   8 import org.opendaylight.controller.md.sal.common.api.data.DataReader;
   9 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizer;
  10 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  11 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
  12 import org.opendaylight.controller.sal.common.DataStoreIdentifier;
  13 import org.opendaylight.controller.sal.core.api.data.DataChangeListener;
  14 import org.opendaylight.controller.sal.core.api.data.DataModificationTransaction;
  15 import org.opendaylight.controller.sal.core.api.data.DataProviderService;
  16 import org.opendaylight.controller.sal.core.api.data.DataValidator;
  17 import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
  18 import org.opendaylight.yangtools.concepts.Delegator;
  19 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  20 import org.opendaylight.yangtools.concepts.Registration;
  21 import org.opendaylight.yangtools.concepts.util.ListenerRegistry;
  22 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
  23 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
  24 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  25 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  26 import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
  27
  28 public class BackwardsCompatibleDataBroker implements DataProviderService, SchemaContextListener {
  29
  30     DOMDataBroker backingBroker;
  31     DataNormalizer normalizer;
  32     private final ListenerRegistry<DataChangeListener> fakeRegistry = ListenerRegistry.create();
  33
  34
  35     public BackwardsCompatibleDataBroker(final DOMDataBroker newBiDataImpl) {
  36         backingBroker = newBiDataImpl;
  37     }
  38
  39     @Override
  40     public void onGlobalContextUpdated(final SchemaContext ctx) {
  41         normalizer = new DataNormalizer(ctx);
  42     }
  43
  44     @Override
  45     public CompositeNode readConfigurationData(final InstanceIdentifier legacyPath) {
  46         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 InstanceIdentifier legacyPath) {
  56         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 InstanceIdentifier path,
  71             final DataChangeListener listener) {
  72         return fakeRegistry .register(listener);
  73     }
  74
  75     @Override
  76     public Registration<DataCommitHandler<InstanceIdentifier, CompositeNode>> registerCommitHandler(
  77             final InstanceIdentifier path, final DataCommitHandler<InstanceIdentifier, CompositeNode> commitHandler) {
  78         // FIXME Do real forwarding
  79         return new AbstractObjectRegistration<DataCommitHandler<InstanceIdentifier,CompositeNode>>(commitHandler) {
  80             @Override
  81             protected void removeRegistration() {
  82                 // NOOP
  83             }
  84         };
  85     }
  86
  87     @Override
  88     public ListenerRegistration<RegistrationListener<DataCommitHandlerRegistration<InstanceIdentifier, CompositeNode>>> registerCommitHandlerListener(
  89             final RegistrationListener<DataCommitHandlerRegistration<InstanceIdentifier, CompositeNode>> commitHandlerListener) {
  90         return null;
  91     }
  92
  93     // Obsolote functionality
  94
  95     @Override
  96     public void addValidator(final DataStoreIdentifier store, final DataValidator validator) {
  97         throw new UnsupportedOperationException();
  98     }
  99
 100     @Override
 101     public void removeValidator(final DataStoreIdentifier store, final DataValidator validator) {
 102         throw new UnsupportedOperationException();
 103     }
 104
 105     @Override
 106     public void addRefresher(final DataStoreIdentifier store, final DataRefresher refresher) {
 107         throw new UnsupportedOperationException();
 108     }
 109
 110     @Override
 111     public void removeRefresher(final DataStoreIdentifier store, final DataRefresher refresher) {
 112         throw new UnsupportedOperationException();
 113     }
 114
 115     @Override
 116     public Registration<DataReader<InstanceIdentifier, CompositeNode>> registerConfigurationReader(
 117             final InstanceIdentifier path, final DataReader<InstanceIdentifier, CompositeNode> reader) {
 118         throw new UnsupportedOperationException("Data Reader contract is not supported.");
 119     }
 120
 121     @Override
 122     public Registration<DataReader<InstanceIdentifier, CompositeNode>> registerOperationalReader(
 123             final InstanceIdentifier path, final DataReader<InstanceIdentifier, CompositeNode> reader) {
 124         throw new UnsupportedOperationException("Data Reader contract is not supported.");
 125     }
 126
 127     private final class TranslatingListenerInvoker implements DOMDataChangeListener, Delegator<DataChangeListener> {
 128
 129
 130         private DataChangeListener delegate;
 131
 132         @Override
 133         public void onDataChanged(final AsyncDataChangeEvent<InstanceIdentifier, NormalizedNode<?, ?>> normalizedChange) {
 134
 135             DataChangeEvent<InstanceIdentifier, CompositeNode> legacyChange = null;
 136             delegate.onDataChanged(legacyChange);
 137         }
 138
 139         @Override
 140         public DataChangeListener getDelegate() {
 141
 142             return delegate;
 143         }
 144
 145
 146     }
 147
 148 }