opendaylight/md-sal/samples/clustering-test-app/provider/src/main/java/org/opendaylight/controller/clustering/it/provider/impl/GetConstantService.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 package org.opendaylight.controller.clustering.it.provider.impl;
   9
  10 import com.google.common.util.concurrent.Futures;
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import org.opendaylight.mdsal.dom.api.DOMRpcIdentifier;
  13 import org.opendaylight.mdsal.dom.api.DOMRpcImplementation;
  14 import org.opendaylight.mdsal.dom.api.DOMRpcProviderService;
  15 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
  16 import org.opendaylight.mdsal.dom.spi.DefaultDOMRpcResult;
  17 import org.opendaylight.yangtools.concepts.Registration;
  18 import org.opendaylight.yangtools.yang.common.QName;
  19 import org.opendaylight.yangtools.yang.common.QNameModule;
  20 import org.opendaylight.yangtools.yang.common.YangConstants;
  21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  22 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  23 import org.opendaylight.yangtools.yang.data.spi.node.ImmutableNodes;
  24 import org.slf4j.Logger;
  25 import org.slf4j.LoggerFactory;
  26
  27 public final class GetConstantService implements DOMRpcImplementation {
  28     private static final Logger LOG = LoggerFactory.getLogger(GetConstantService.class);
  29
  30     private static final QNameModule MODULE =
  31         QNameModule.ofRevision("tag:opendaylight.org,2017:controller:yang:lowlevel:target", "2017-02-15").intern();
  32
  33     private static final QName OUTPUT = YangConstants.operationOutputQName(MODULE).intern();
  34     private static final QName CONSTANT = QName.create(MODULE, "constant").intern();
  35     private static final QName GET_CONSTANT = QName.create(MODULE, "get-constant").intern();
  36
  37     private final String constant;
  38
  39     private GetConstantService(final String constant) {
  40         this.constant = constant;
  41     }
  42
  43     public static Registration registerNew(final DOMRpcProviderService rpcProviderService, final String constant) {
  44         LOG.debug("Registering get-constant service, constant value: {}", constant);
  45         return rpcProviderService.registerRpcImplementation(new GetConstantService(constant),
  46             DOMRpcIdentifier.create(GET_CONSTANT));
  47     }
  48
  49     @Override
  50     public ListenableFuture<DOMRpcResult> invokeRpc(final DOMRpcIdentifier rpc, final ContainerNode input) {
  51         LOG.debug("get-constant invoked, current value: {}", constant);
  52
  53         return Futures.immediateFuture(new DefaultDOMRpcResult(ImmutableNodes.newContainerBuilder()
  54             .withNodeIdentifier(new NodeIdentifier(OUTPUT))
  55             .withChild(ImmutableNodes.leafNode(CONSTANT, constant))
  56             .build()));
  57     }
  58 }