opendaylight/md-sal/sal-dom-compat/src/main/java/org/opendaylight/controller/sal/core/compat/DOMStoreReadTransactionAdapter.java

   1 /*
   2  * Copyright (c) 2018 Pantheon Technologies, s.r.o. 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.controller.sal.core.compat;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.base.Optional;
  13 import com.google.common.collect.ForwardingObject;
  14 import com.google.common.util.concurrent.CheckedFuture;
  15 import com.google.common.util.concurrent.MoreExecutors;
  16 import org.opendaylight.controller.md.sal.common.api.MappingCheckedFuture;
  17 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  18 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  20 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  21
  22 public class DOMStoreReadTransactionAdapter<T extends org.opendaylight.mdsal.dom.spi.store.DOMStoreReadTransaction>
  23         extends ForwardingObject implements DOMStoreReadTransaction {
  24     private final T delegate;
  25
  26     public DOMStoreReadTransactionAdapter(final T delegate) {
  27         this.delegate = requireNonNull(delegate);
  28     }
  29
  30     @Override
  31     protected T delegate() {
  32         return delegate;
  33     }
  34
  35     @Override
  36     public Object getIdentifier() {
  37         return delegate.getIdentifier();
  38     }
  39
  40     @Override
  41     public void close() {
  42         delegate.close();
  43     }
  44
  45     @Override
  46     public CheckedFuture<com.google.common.base.Optional<NormalizedNode<?, ?>>, ReadFailedException> read(
  47             final YangInstanceIdentifier path) {
  48         return MappingCheckedFuture.create(delegate.read(path).transform(
  49             Optional::fromJavaUtil, MoreExecutors.directExecutor()), ReadFailedExceptionAdapter.INSTANCE);
  50     }
  51
  52     @Override
  53     public CheckedFuture<Boolean, ReadFailedException> exists(final YangInstanceIdentifier path) {
  54         return MappingCheckedFuture.create(delegate.exists(path), ReadFailedExceptionAdapter.INSTANCE);
  55     }
  56 }