binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/AbstractForwardedTransaction.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.mdsal.binding.dom.adapter;
   9
  10 import com.google.common.base.Preconditions;
  11 import com.google.common.util.concurrent.FluentFuture;
  12 import com.google.common.util.concurrent.MoreExecutors;
  13 import java.util.Optional;
  14 import org.opendaylight.mdsal.common.api.AsyncTransaction;
  15 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  16 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadTransaction;
  17 import org.opendaylight.yangtools.concepts.Delegator;
  18 import org.opendaylight.yangtools.concepts.Identifiable;
  19 import org.opendaylight.yangtools.yang.binding.DataObject;
  20 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  22 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  23
  24 abstract class AbstractForwardedTransaction<T extends AsyncTransaction<YangInstanceIdentifier, NormalizedNode<?, ?>>>
  25         implements Delegator<T>, Identifiable<Object> {
  26
  27     private final T delegate;
  28     private final BindingToNormalizedNodeCodec codec;
  29
  30     AbstractForwardedTransaction(final T delegateTx, final BindingToNormalizedNodeCodec codec) {
  31         this.delegate = Preconditions.checkNotNull(delegateTx, "Delegate must not be null");
  32         this.codec = Preconditions.checkNotNull(codec, "Codec must not be null");
  33     }
  34
  35
  36     @Override
  37     public final  Object getIdentifier() {
  38         return delegate.getIdentifier();
  39     }
  40
  41     @Override
  42     public final  T getDelegate() {
  43         return delegate;
  44     }
  45
  46     @SuppressWarnings("unchecked")
  47     protected final <S extends AsyncTransaction<YangInstanceIdentifier, NormalizedNode<?, ?>>> S getDelegateChecked(
  48             final Class<S> txType) {
  49         Preconditions.checkState(txType.isInstance(delegate));
  50         return (S) delegate;
  51     }
  52
  53     protected final BindingToNormalizedNodeCodec getCodec() {
  54         return codec;
  55     }
  56
  57     protected final <D extends DataObject> FluentFuture<Optional<D>> doRead(
  58             final DOMDataTreeReadTransaction readTx, final LogicalDatastoreType store,
  59             final InstanceIdentifier<D> path) {
  60         Preconditions.checkArgument(!path.isWildcarded(), "Invalid read of wildcarded path %s", path);
  61
  62         return readTx.read(store, codec.toYangInstanceIdentifierBlocking(path))
  63                 .transform(codec.getCodecRegistry().deserializeFunction(path)::apply, MoreExecutors.directExecutor());
  64     }
  65 }