opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/RoutedGetConstantService.java

   1 /*
   2  * Copyright (c) 2017 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.clustering.it.provider.impl;
  10
  11 import com.google.common.util.concurrent.CheckedFuture;
  12 import com.google.common.util.concurrent.Futures;
  13 import javax.annotation.Nonnull;
  14 import javax.annotation.Nullable;
  15 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMRpcIdentifier;
  17 import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementation;
  18 import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementationRegistration;
  19 import org.opendaylight.controller.md.sal.dom.api.DOMRpcProviderService;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
  21 import org.opendaylight.controller.md.sal.dom.spi.DefaultDOMRpcResult;
  22 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  23 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  24 import org.opendaylight.yangtools.yang.common.QName;
  25 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  26 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  27 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
  28 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  29 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
  30 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
  31 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 public class RoutedGetConstantService implements DOMRpcImplementation {
  36
  37     private static final Logger LOG = LoggerFactory.getLogger(RoutedGetConstantService.class);
  38
  39     private static final QName OUTPUT =
  40             QName.create("tag:opendaylight.org,2017:controller:yang:lowlevel:target","2017-02-15", "output");
  41     private static final QName CONSTANT =
  42             QName.create("tag:opendaylight.org,2017:controller:yang:lowlevel:target","2017-02-15", "constant");
  43     private static final QName CONTEXT =
  44             QName.create("tag:opendaylight.org,2017:controller:yang:lowlevel:target","2017-02-15", "context");
  45     private static final QName GET_CONTEXTED_CONSTANT =
  46             QName.create("tag:opendaylight.org,2017:controller:yang:lowlevel:target","2017-02-15",
  47                     "get-contexted-constant");
  48
  49     private final String constant;
  50
  51     private RoutedGetConstantService(final String constant) {
  52         this.constant = constant;
  53     }
  54
  55     public static DOMRpcImplementationRegistration<RoutedGetConstantService> registerNew(
  56             final BindingNormalizedNodeSerializer codec, final DOMRpcProviderService rpcProviderService,
  57             final String constant, final InstanceIdentifier<?> context) {
  58
  59         LOG.debug("Registering get-contexted-constant on context: {}, with value: {}", context, constant);
  60
  61         final YangInstanceIdentifier yid = codec.toYangInstanceIdentifier(context);
  62         final DOMRpcIdentifier id = DOMRpcIdentifier.create(SchemaPath.create(true, GET_CONTEXTED_CONSTANT), yid);
  63
  64         return rpcProviderService.registerRpcImplementation(new RoutedGetConstantService(constant), id);
  65     }
  66
  67     @Nonnull
  68     @Override
  69     public CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(@Nonnull final DOMRpcIdentifier rpc,
  70                                                                   @Nullable final NormalizedNode<?, ?> input) {
  71         LOG.debug("get-contexted-constant invoked, current value: {}", constant);
  72
  73         final LeafNode<Object> value = ImmutableLeafNodeBuilder.create()
  74                 .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(CONSTANT))
  75                 .withValue(constant)
  76                 .build();
  77
  78         final ContainerNode result = ImmutableContainerNodeBuilder.create()
  79                 .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(OUTPUT))
  80                 .withChild(value)
  81                 .build();
  82
  83         return Futures.immediateCheckedFuture(new DefaultDOMRpcResult(result));
  84     }
  85 }