infra/data-impl/src/main/java/io/fd/honeycomb/v3po/data/impl/ReadWriteTransaction.java

   1 /*
   2  * Copyright (c) 2016 Cisco and/or its affiliates.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at:
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package io.fd.honeycomb.v3po.data.impl;
  18
  19 import com.google.common.base.Optional;
  20 import com.google.common.base.Preconditions;
  21 import com.google.common.util.concurrent.CheckedFuture;
  22 import com.google.common.util.concurrent.ListenableFuture;
  23 import javax.annotation.Nonnull;
  24 import org.opendaylight.controller.md.sal.common.api.TransactionStatus;
  25 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  26 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  27 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  28 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  29 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadTransaction;
  30 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  31 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  32 import org.opendaylight.yangtools.yang.common.RpcResult;
  33 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  34 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  35
  36 /**
  37  * Composite DOM transaction that delegates reads to a {@link DOMDataReadTransaction} delegate and writes to a {@link
  38  * DOMDataWriteTransaction} delegate.
  39  */
  40 final class ReadWriteTransaction implements DOMDataReadWriteTransaction {
  41
  42     private final DOMDataReadOnlyTransaction delegateReadTx;
  43     private final DOMDataWriteTransaction delegateWriteTx;
  44
  45     ReadWriteTransaction(@Nonnull final DOMDataReadOnlyTransaction delegateReadTx,
  46                          @Nonnull final DOMDataWriteTransaction delegateWriteTx) {
  47         this.delegateReadTx = Preconditions.checkNotNull(delegateReadTx, "delegateReadTx should not be null");
  48         this.delegateWriteTx = Preconditions.checkNotNull(delegateWriteTx, "delegateWriteTx should not be null");
  49     }
  50
  51     @Override
  52     public boolean cancel() {
  53         delegateReadTx.close();
  54         return delegateWriteTx.cancel();
  55     }
  56
  57     @Override
  58     public void put(final LogicalDatastoreType store, final YangInstanceIdentifier path,
  59                     final NormalizedNode<?, ?> data) {
  60         delegateWriteTx.put(store, path, data);
  61     }
  62
  63     @Override
  64     public void merge(final LogicalDatastoreType store, final YangInstanceIdentifier path,
  65                       final NormalizedNode<?, ?> data) {
  66         delegateWriteTx.merge(store, path, data);
  67     }
  68
  69     @Override
  70     public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  71         delegateWriteTx.delete(store, path);
  72     }
  73
  74     @Override
  75     public CheckedFuture<Void, TransactionCommitFailedException> submit() {
  76         return delegateWriteTx.submit();
  77     }
  78
  79     @Override
  80     public ListenableFuture<RpcResult<TransactionStatus>> commit() {
  81         return delegateWriteTx.commit();
  82     }
  83
  84     @Override
  85     public CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(final LogicalDatastoreType store,
  86                                                                                    final YangInstanceIdentifier path) {
  87         return delegateReadTx.read(store, path);
  88     }
  89
  90     @Override
  91     public CheckedFuture<Boolean, ReadFailedException> exists(final LogicalDatastoreType store,
  92                                                               final YangInstanceIdentifier path) {
  93         return delegateReadTx.exists(store, path);
  94     }
  95
  96     @Override
  97     public Object getIdentifier() {
  98         return this;
  99     }
 100 }
 101