opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/broker/impl/RoutedDOMRpcRoutingTableEntry.java

   1 /*
   2  * Copyright (c) 2015 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.md.sal.dom.broker.impl;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.util.concurrent.CheckedFuture;
  13 import com.google.common.util.concurrent.Futures;
  14 import java.util.List;
  15 import java.util.Map;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
  17 import org.opendaylight.controller.md.sal.dom.api.DOMRpcIdentifier;
  18 import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementation;
  19 import org.opendaylight.controller.md.sal.dom.api.DOMRpcImplementationNotAvailableException;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
  21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  22 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  23 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
  24 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 final class RoutedDOMRpcRoutingTableEntry extends AbstractDOMRpcRoutingTableEntry {
  29     private static final Logger LOG = LoggerFactory.getLogger(RoutedDOMRpcRoutingTableEntry.class);
  30     private final DOMRpcIdentifier globalRpcId;
  31     private final YangInstanceIdentifier keyId;
  32
  33     private RoutedDOMRpcRoutingTableEntry(final DOMRpcIdentifier globalRpcId, final YangInstanceIdentifier keyId, final Map<YangInstanceIdentifier, List<DOMRpcImplementation>> impls) {
  34         super(globalRpcId.getType(), impls);
  35         this.keyId = Preconditions.checkNotNull(keyId);
  36         this.globalRpcId = Preconditions.checkNotNull(globalRpcId);
  37     }
  38
  39     RoutedDOMRpcRoutingTableEntry(final RpcDefinition def, final YangInstanceIdentifier keyId, final Map<YangInstanceIdentifier, List<DOMRpcImplementation>> impls) {
  40         super(def.getPath(), impls);
  41         this.keyId = Preconditions.checkNotNull(keyId);
  42         this.globalRpcId = DOMRpcIdentifier.create(def.getPath());
  43     }
  44
  45     @Override
  46     protected CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(final NormalizedNode<?, ?> input) {
  47         final Optional<NormalizedNode<?, ?>> maybeKey = NormalizedNodes.findNode(input, keyId);
  48
  49         // Routing key is present, attempt to deliver as a routed RPC
  50         if (maybeKey.isPresent()) {
  51             final NormalizedNode<?, ?> key = maybeKey.get();
  52             final Object value = key.getValue();
  53             if (value instanceof YangInstanceIdentifier) {
  54                 final YangInstanceIdentifier iid = (YangInstanceIdentifier) value;
  55                 final List<DOMRpcImplementation> impls = getImplementations(iid);
  56                 if (impls != null) {
  57                     return impls.get(0).invokeRpc(DOMRpcIdentifier.create(getSchemaPath(), iid), input);
  58                 }
  59                 LOG.debug("No implementation for context {} found", iid);
  60             } else {
  61                 LOG.warn("Ignoring wrong context value {}", value);
  62             }
  63         }
  64
  65         final List<DOMRpcImplementation> impls = getImplementations(null);
  66         if (impls != null) {
  67             return impls.get(0).invokeRpc(globalRpcId, input);
  68         } else {
  69             return Futures.<DOMRpcResult, DOMRpcException>immediateFailedCheckedFuture(new DOMRpcImplementationNotAvailableException("No implementation of RPC %s available", getSchemaPath()));
  70         }
  71     }
  72
  73     @Override
  74     protected RoutedDOMRpcRoutingTableEntry newInstance(final Map<YangInstanceIdentifier, List<DOMRpcImplementation>> impls) {
  75         return new RoutedDOMRpcRoutingTableEntry(globalRpcId, keyId, impls);
  76     }
  77 }