opendaylight/netconf/sal-netconf-connector/src/main/java/org/opendaylight/controller/sal/connect/netconf/sal/tx/ReadWriteTx.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
   9 package org.opendaylight.controller.sal.connect.netconf.sal.tx;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.util.concurrent.CheckedFuture;
  13 import com.google.common.util.concurrent.Futures;
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import java.util.concurrent.ExecutionException;
  16 import org.opendaylight.controller.md.sal.common.api.TransactionStatus;
  17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  18 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  19 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadTransaction;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  22 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  23 import org.opendaylight.yangtools.yang.common.RpcResult;
  24 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  25 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  26
  27 public class ReadWriteTx implements DOMDataReadWriteTransaction {
  28
  29     private final DOMDataReadTransaction delegateReadTx;
  30     private final DOMDataWriteTransaction delegateWriteTx;
  31
  32     public ReadWriteTx(final DOMDataReadTransaction delegateReadTx, final DOMDataWriteTransaction delegateWriteTx) {
  33         this.delegateReadTx = delegateReadTx;
  34         this.delegateWriteTx = delegateWriteTx;
  35     }
  36
  37     @Override
  38     public boolean cancel() {
  39         return delegateWriteTx.cancel();
  40     }
  41
  42     @Override
  43     public void put(final LogicalDatastoreType store, final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
  44         delegateWriteTx.put(store, path, data);
  45     }
  46
  47     @Override
  48     public void merge(final LogicalDatastoreType store, final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
  49         delegateWriteTx.merge(store, path, data);
  50     }
  51
  52     @Override
  53     public void delete(final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  54         delegateWriteTx.delete(store, path);
  55     }
  56
  57     @Override
  58     public CheckedFuture<Void, TransactionCommitFailedException> submit() {
  59         return delegateWriteTx.submit();
  60     }
  61
  62     @Override
  63     public ListenableFuture<RpcResult<TransactionStatus>> commit() {
  64         return delegateWriteTx.commit();
  65     }
  66
  67     @Override
  68     public CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> read(
  69             final LogicalDatastoreType store, final YangInstanceIdentifier path) {
  70         return delegateReadTx.read(store, path);
  71     }
  72
  73     @Override public CheckedFuture<Boolean, ReadFailedException> exists(
  74         final LogicalDatastoreType store,
  75         final YangInstanceIdentifier path) {
  76         final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException>
  77             data = read(store, path);
  78
  79         try {
  80             return Futures.immediateCheckedFuture(data.get().isPresent());
  81         } catch (InterruptedException | ExecutionException e) {
  82             return Futures.immediateFailedCheckedFuture(new ReadFailedException("Exists failed",e));
  83         }
  84     }
  85
  86     @Override
  87     public Object getIdentifier() {
  88         return this;
  89     }
  90 }