dom/mdsal-dom-broker/src/main/java/org/opendaylight/mdsal/dom/broker/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.mdsal.dom.broker;
   9
  10 import org.opendaylight.mdsal.dom.api.DOMRpcException;
  11 import org.opendaylight.mdsal.dom.api.DOMRpcIdentifier;
  12 import org.opendaylight.mdsal.dom.api.DOMRpcImplementation;
  13 import org.opendaylight.mdsal.dom.api.DOMRpcImplementationNotAvailableException;
  14 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
  15
  16 import com.google.common.base.Optional;
  17 import com.google.common.base.Preconditions;
  18 import com.google.common.util.concurrent.CheckedFuture;
  19 import com.google.common.util.concurrent.Futures;
  20 import java.util.List;
  21 import java.util.Map;
  22 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  23 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  24 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
  25 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 final class RoutedDOMRpcRoutingTableEntry extends AbstractDOMRpcRoutingTableEntry {
  30     private static final Logger LOG = LoggerFactory.getLogger(RoutedDOMRpcRoutingTableEntry.class);
  31     private final DOMRpcIdentifier globalRpcId;
  32     private final YangInstanceIdentifier keyId;
  33
  34     private RoutedDOMRpcRoutingTableEntry(final DOMRpcIdentifier globalRpcId, final YangInstanceIdentifier keyId, final Map<YangInstanceIdentifier, List<DOMRpcImplementation>> impls) {
  35         super(globalRpcId.getType(), impls);
  36         this.keyId = Preconditions.checkNotNull(keyId);
  37         this.globalRpcId = Preconditions.checkNotNull(globalRpcId);
  38     }
  39
  40     RoutedDOMRpcRoutingTableEntry(final RpcDefinition def, final YangInstanceIdentifier keyId, final Map<YangInstanceIdentifier, List<DOMRpcImplementation>> impls) {
  41         super(def.getPath(), impls);
  42         this.keyId = Preconditions.checkNotNull(keyId);
  43         this.globalRpcId = DOMRpcIdentifier.create(def.getPath());
  44     }
  45
  46     @Override
  47     protected CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(final NormalizedNode<?, ?> input) {
  48         final Optional<NormalizedNode<?, ?>> maybeKey = NormalizedNodes.findNode(input, keyId);
  49
  50         // Routing key is present, attempt to deliver as a routed RPC
  51         if (maybeKey.isPresent()) {
  52             final NormalizedNode<?, ?> key = maybeKey.get();
  53             final Object value = key.getValue();
  54             if (value instanceof YangInstanceIdentifier) {
  55                 final YangInstanceIdentifier iid = (YangInstanceIdentifier) value;
  56
  57                 // Find a DOMRpcImplementation for a specific iid
  58                 final List<DOMRpcImplementation> specificImpls = getImplementations(iid);
  59                 if (specificImpls != null) {
  60                     return specificImpls.get(0).invokeRpc(DOMRpcIdentifier.create(getSchemaPath(), iid), input);
  61                 }
  62
  63                 LOG.debug("No implementation for context {} found will now look for wildcard id", iid);
  64
  65                 // Find a DOMRpcImplementation for a wild card. Usually remote-rpc-connector would register an
  66                 // implementation this way
  67                 final List<DOMRpcImplementation> mayBeRemoteImpls = getImplementations(YangInstanceIdentifier.EMPTY);
  68
  69                 if(mayBeRemoteImpls != null){
  70                     return mayBeRemoteImpls.get(0).invokeRpc(DOMRpcIdentifier.create(getSchemaPath(), iid), input);
  71                 }
  72
  73             } else {
  74                 LOG.warn("Ignoring wrong context value {}", value);
  75             }
  76         }
  77
  78         final List<DOMRpcImplementation> impls = getImplementations(null);
  79         if (impls != null) {
  80             return impls.get(0).invokeRpc(globalRpcId, input);
  81         } else {
  82             return Futures.<DOMRpcResult, DOMRpcException>immediateFailedCheckedFuture(new DOMRpcImplementationNotAvailableException("No implementation of RPC %s available", getSchemaPath()));
  83         }
  84     }
  85
  86     @Override
  87     protected RoutedDOMRpcRoutingTableEntry newInstance(final Map<YangInstanceIdentifier, List<DOMRpcImplementation>> impls) {
  88         return new RoutedDOMRpcRoutingTableEntry(globalRpcId, keyId, impls);
  89     }
  90 }