opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/FailedDataTreeModification.java

   1 /*
   2  * Copyright (c) 2016 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 package org.opendaylight.controller.cluster.databroker.actors.dds;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.base.Preconditions;
  12 import java.util.function.Supplier;
  13 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  14 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  15 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
  16 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModificationCursor;
  17
  18 /**
  19  * An implementation of DataTreeModification which throws a specified {@link RuntimeException} when any of its methods
  20  * are invoked.
  21  *
  22  * @author Robert Varga
  23  */
  24 final class FailedDataTreeModification implements DataTreeModification {
  25     private final Supplier<? extends RuntimeException> supplier;
  26
  27     FailedDataTreeModification(final Supplier<? extends RuntimeException> supplier) {
  28         this.supplier = Preconditions.checkNotNull(supplier);
  29     }
  30
  31     @Override
  32     public Optional<NormalizedNode<?, ?>> readNode(final YangInstanceIdentifier path) {
  33         throw supplier.get();
  34     }
  35
  36     @Override
  37     public DataTreeModification newModification() {
  38         throw supplier.get();
  39     }
  40
  41     @Override
  42     public void delete(final YangInstanceIdentifier path) {
  43         throw supplier.get();
  44     }
  45
  46     @Override
  47     public void merge(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
  48         throw supplier.get();
  49     }
  50
  51     @Override
  52     public void write(final YangInstanceIdentifier path, final NormalizedNode<?, ?> data) {
  53         throw supplier.get();
  54     }
  55
  56     @Override
  57     public void ready() {
  58         throw supplier.get();
  59     }
  60
  61     @Override
  62     public void applyToCursor(final DataTreeModificationCursor cursor) {
  63         throw supplier.get();
  64     }
  65 }