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