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.collect.ForwardingObject;
  13 import com.google.common.util.concurrent.CheckedFuture;
  14 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  15 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  16 import org.opendaylight.mdsal.common.api.MappingCheckedFuture;
  17 import org.opendaylight.yangtools.util.concurrent.ExceptionMapper;
  18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  19 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  20
  21 public class DOMStoreReadTransactionAdapter<T extends org.opendaylight.mdsal.dom.spi.store.DOMStoreReadTransaction>
  22         extends ForwardingObject implements DOMStoreReadTransaction {
  23     public static final ExceptionMapper<ReadFailedException> READ_EX_MAPPER =
  24             new ExceptionMapper<ReadFailedException>("read", ReadFailedException.class) {
  25         @Override
  26         protected ReadFailedException newWithCause(final String message, final Throwable cause) {
  27             return cause instanceof org.opendaylight.mdsal.common.api.ReadFailedException
  28                     ? new ReadFailedException(cause.getMessage(), cause.getCause())
  29                             : new ReadFailedException(message, cause);
  30         }
  31     };
  32
  33     private final T delegate;
  34
  35     public DOMStoreReadTransactionAdapter(final T delegate) {
  36         this.delegate = requireNonNull(delegate);
  37     }
  38
  39     @Override
  40     protected T delegate() {
  41         return delegate;
  42     }
  43
  44     @Override
  45     public Object getIdentifier() {
  46         return delegate.getIdentifier();
  47     }
  48
  49     @Override
  50     public void close() {
  51         delegate.close();
  52     }
  53
  54     @Override
  55     public CheckedFuture<com.google.common.base.Optional<NormalizedNode<?, ?>>, ReadFailedException> read(
  56             final YangInstanceIdentifier path) {
  57         return MappingCheckedFuture.create(delegate.read(path), READ_EX_MAPPER);
  58     }
  59
  60     @Override
  61     public CheckedFuture<Boolean, ReadFailedException> exists(final YangInstanceIdentifier path) {
  62         return MappingCheckedFuture.create(delegate.exists(path), READ_EX_MAPPER);
  63     }
  64 }