opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/BindingDOMRpcImplementationAdapter.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.binding.impl;
   9
  10 import com.google.common.base.Function;
  11 import com.google.common.util.concurrent.CheckedFuture;
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.JdkFutureAdapters;
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import java.util.Collection;
  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.DOMRpcResult;
  20 import org.opendaylight.yangtools.binding.data.codec.impl.BindingNormalizedNodeCodecRegistry;
  21 import org.opendaylight.yangtools.yang.binding.DataContainer;
  22 import org.opendaylight.yangtools.yang.binding.DataObject;
  23 import org.opendaylight.yangtools.yang.binding.RpcService;
  24 import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
  25 import org.opendaylight.yangtools.yang.binding.util.RpcServiceInvoker;
  26 import org.opendaylight.yangtools.yang.common.QName;
  27 import org.opendaylight.yangtools.yang.common.QNameModule;
  28 import org.opendaylight.yangtools.yang.common.RpcError;
  29 import org.opendaylight.yangtools.yang.common.RpcResult;
  30 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  31 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  32 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  33
  34 public class BindingDOMRpcImplementationAdapter implements DOMRpcImplementation {
  35
  36     private static final Function<? super Exception, DOMRpcException> EXCEPTION_MAPPER = new Function<Exception, DOMRpcException>() {
  37
  38         @Override
  39         public DOMRpcException apply(final Exception input) {
  40             // FIXME: Return correct exception
  41             return null;
  42         }
  43
  44     };
  45     private final BindingNormalizedNodeCodecRegistry codec;
  46     private final RpcServiceInvoker invoker;
  47     private final RpcService delegate;
  48     private final QNameModule module;
  49
  50     public <T extends RpcService> BindingDOMRpcImplementationAdapter(final BindingNormalizedNodeCodecRegistry codec, final Class<T> type ,final T delegate) {
  51         this.codec = codec;
  52         this.delegate = delegate;
  53         invoker = RpcServiceInvoker.from(type);
  54         module = BindingReflections.getQNameModule(type);
  55     }
  56
  57     public QNameModule getQNameModule() {
  58         return module;
  59     }
  60
  61     @Override
  62     public CheckedFuture<DOMRpcResult, DOMRpcException> invokeRpc(final DOMRpcIdentifier rpc, final NormalizedNode<?, ?> input) {
  63         final SchemaPath schemaPath = rpc.getType();
  64         final DataObject bindingInput = input != null ? deserilialize(rpc.getType(),input) : null;
  65         final ListenableFuture<RpcResult<?>> bindingResult = invoke(schemaPath,bindingInput);
  66         return transformResult(schemaPath,bindingResult);
  67     }
  68
  69     private DataObject deserilialize(final SchemaPath rpcPath, final NormalizedNode<?, ?> input) {
  70         if(input instanceof LazySerializedContainerNode) {
  71             return ((LazySerializedContainerNode) input).bindingData();
  72         }
  73         final SchemaPath inputSchemaPath = rpcPath.createChild(QName.create(module,"input"));
  74         return codec.fromNormalizedNodeRpcData(inputSchemaPath, (ContainerNode) input);
  75     }
  76
  77
  78     private ListenableFuture<RpcResult<?>> invoke(final SchemaPath schemaPath, final DataObject input) {
  79         return JdkFutureAdapters.listenInPoolThread(invoker.invokeRpc(delegate, schemaPath.getLastComponent(), input));
  80     }
  81
  82     private CheckedFuture<DOMRpcResult, DOMRpcException> transformResult(final SchemaPath schemaPath,
  83             final ListenableFuture<RpcResult<?>> bindingResult) {
  84         final ListenableFuture<DOMRpcResult> transformed = Futures.transform(bindingResult, new Function<RpcResult<?>,DOMRpcResult>() {
  85
  86             @Override
  87             public DOMRpcResult apply(final RpcResult<?> input) {
  88                 return new DOMRpcResult() {
  89
  90                     @Override
  91                     public NormalizedNode<?, ?> getResult() {
  92
  93                         if(input instanceof DataContainer) {
  94                             return codec.toNormalizedNodeRpcData((DataContainer) input);
  95                         }
  96                         return null;
  97                     }
  98
  99                     @Override
 100                     public Collection<RpcError> getErrors() {
 101                         return input.getErrors();
 102                     }
 103                 };
 104             }
 105
 106         });
 107         return Futures.makeChecked(transformed, EXCEPTION_MAPPER);
 108     }
 109
 110
 111
 112 }