opendaylight/md-sal/sal-binding-api/src/main/java/org/opendaylight/controller/md/sal/binding/api/ForwardingReadOnlyTransaction.java

   1 /*
   2  * Copyright (c) 2017 Red Hat, 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.controller.md.sal.binding.api;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.collect.ForwardingObject;
  12 import com.google.common.util.concurrent.CheckedFuture;
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  15 import org.opendaylight.yangtools.yang.binding.DataObject;
  16 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  17
  18 /**
  19  * Utility {@link ReadOnlyTransaction} implementation which forwards all interface method
  20  * invocation to a delegate instance.
  21  */
  22 @SuppressWarnings("deprecation") // due to CheckedFuture
  23 public class ForwardingReadOnlyTransaction extends ForwardingObject implements ReadOnlyTransaction {
  24
  25     private final ReadOnlyTransaction delegate;
  26
  27     protected ForwardingReadOnlyTransaction(ReadOnlyTransaction delegate) {
  28         this.delegate = delegate;
  29     }
  30
  31     @Override
  32     protected ReadTransaction delegate() {
  33         return delegate;
  34     }
  35
  36     @Override
  37     public <T extends DataObject> CheckedFuture<Optional<T>, ReadFailedException> read(LogicalDatastoreType store,
  38             InstanceIdentifier<T> path) {
  39         return delegate.read(store, path);
  40     }
  41
  42     @Override
  43     public Object getIdentifier() {
  44         return delegate.getIdentifier();
  45     }
  46
  47     @Override
  48     public void close() {
  49         delegate.close();
  50     }
  51 }