binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/BindingDOMTransactionChainAdapter.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 static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import java.util.function.Supplier;
  14 import org.eclipse.jdt.annotation.NonNull;
  15 import org.opendaylight.mdsal.binding.api.ReadTransaction;
  16 import org.opendaylight.mdsal.binding.api.ReadWriteTransaction;
  17 import org.opendaylight.mdsal.binding.api.TransactionChain;
  18 import org.opendaylight.mdsal.binding.api.TransactionChainClosedException;
  19 import org.opendaylight.mdsal.binding.api.WriteTransaction;
  20 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
  21 import org.opendaylight.mdsal.dom.api.DOMTransactionChainClosedException;
  22 import org.opendaylight.yangtools.concepts.Delegator;
  23 import org.opendaylight.yangtools.yang.common.Empty;
  24
  25 final class BindingDOMTransactionChainAdapter implements TransactionChain, Delegator<DOMTransactionChain> {
  26     private final @NonNull DOMTransactionChain delegate;
  27     private final @NonNull AdapterContext adapterContext;
  28
  29     BindingDOMTransactionChainAdapter(final DOMTransactionChain delegate, final AdapterContext adapterContext) {
  30         this.delegate = requireNonNull(delegate);
  31         this.adapterContext = requireNonNull(adapterContext);
  32     }
  33
  34     @Override
  35     public DOMTransactionChain getDelegate() {
  36         return delegate;
  37     }
  38
  39     @Override
  40     public ReadTransaction newReadOnlyTransaction() {
  41         return new BindingDOMReadTransactionAdapter(adapterContext,
  42             createTransaction(delegate::newReadOnlyTransaction));
  43     }
  44
  45     @Override
  46     public WriteTransaction newWriteOnlyTransaction() {
  47         return new BindingDOMWriteTransactionAdapter<>(adapterContext,
  48             createTransaction(delegate::newWriteOnlyTransaction));
  49     }
  50
  51     @Override
  52     public ReadWriteTransaction newReadWriteTransaction() {
  53         return new BindingDOMReadWriteTransactionAdapter(adapterContext,
  54             createTransaction(delegate::newReadWriteTransaction));
  55     }
  56
  57     @Override
  58     public ListenableFuture<Empty> future() {
  59         return delegate.future();
  60     }
  61
  62     @Override
  63     public void close() {
  64         delegate.close();
  65     }
  66
  67     private static <T> T createTransaction(final Supplier<T> supplier) {
  68         try {
  69             return supplier.get();
  70         } catch (DOMTransactionChainClosedException e) {
  71             throw new TransactionChainClosedException("Transaction chain already closed", e);
  72         }
  73     }
  74 }