2 * Copyright (c) 2017 Pantheon Technologies s.r.o. and others. All rights reserved.
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
8 package org.opendaylight.mdsal.binding.javav2.dom.adapter.impl.operation;
10 import com.google.common.annotations.Beta;
11 import com.google.common.base.Function;
12 import com.google.common.base.Optional;
13 import com.google.common.base.Preconditions;
14 import com.google.common.collect.ImmutableMap;
15 import com.google.common.util.concurrent.Futures;
16 import com.google.common.util.concurrent.JdkFutureAdapters;
17 import com.google.common.util.concurrent.ListenableFuture;
18 import com.google.common.util.concurrent.MoreExecutors;
19 import java.lang.reflect.InvocationHandler;
20 import java.lang.reflect.Method;
21 import java.lang.reflect.Proxy;
22 import java.util.Map.Entry;
23 import org.opendaylight.mdsal.binding.javav2.dom.adapter.extractor.ContextReferenceExtractor;
24 import org.opendaylight.mdsal.binding.javav2.dom.codec.impl.BindingNormalizedNodeCodecRegistry;
25 import org.opendaylight.mdsal.binding.javav2.dom.codec.impl.BindingToNormalizedNodeCodec;
26 import org.opendaylight.mdsal.binding.javav2.dom.codec.serialized.LazySerializedContainerNode;
27 import org.opendaylight.mdsal.binding.javav2.runtime.reflection.BindingReflections;
28 import org.opendaylight.mdsal.binding.javav2.spec.base.InstanceIdentifier;
29 import org.opendaylight.mdsal.binding.javav2.spec.base.Instantiable;
30 import org.opendaylight.mdsal.binding.javav2.spec.base.Rpc;
31 import org.opendaylight.mdsal.binding.javav2.spec.base.TreeNode;
32 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
33 import org.opendaylight.mdsal.dom.api.DOMRpcService;
34 import org.opendaylight.mdsal.dom.spi.RpcRoutingStrategy;
35 import org.opendaylight.yangtools.yang.common.QName;
36 import org.opendaylight.yangtools.yang.common.RpcResult;
37 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
38 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
39 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
40 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
41 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
42 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
43 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
44 import org.opendaylight.yangtools.yang.model.api.OperationDefinition;
45 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
46 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
49 class RpcServiceAdapter implements InvocationHandler {
51 private final ImmutableMap<Method, RpcInvocationStrategy> rpcNames;
52 private final Class<? extends Rpc<?, ?>> type;
53 private final BindingToNormalizedNodeCodec codec;
54 private final DOMRpcService delegate;
55 private final Rpc<?, ?> proxy;
57 RpcServiceAdapter(final Class<? extends Rpc<?, ?>> type, final BindingToNormalizedNodeCodec codec,
58 final DOMRpcService domService) {
59 this.type = Preconditions.checkNotNull(type);
60 this.codec = Preconditions.checkNotNull(codec);
61 this.delegate = Preconditions.checkNotNull(domService);
62 final ImmutableMap.Builder<Method, RpcInvocationStrategy> rpcBuilder = ImmutableMap.builder();
63 for (final Entry<Method, OperationDefinition> rpc : codec.getRPCMethodToSchema(type).entrySet()) {
64 rpcBuilder.put(rpc.getKey(), createStrategy(rpc.getKey(), (RpcDefinition) rpc.getValue()));
66 rpcNames = rpcBuilder.build();
67 proxy = (Rpc<?, ?>) Proxy.newProxyInstance(type.getClassLoader(), new Class[] { type }, this);
70 private RpcInvocationStrategy createStrategy(final Method method, final RpcDefinition schema) {
71 final RpcRoutingStrategy strategy = RpcRoutingStrategy.from(schema);
72 if (strategy.isContextBasedRouted()) {
73 return new RoutedStrategy(schema.getPath(), method, strategy.getLeaf());
75 return new NonRoutedStrategy(schema.getPath());
78 Rpc<?, ?> getProxy() {
83 public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
85 final RpcInvocationStrategy rpc = rpcNames.get(method);
87 if (method.getParameterTypes().length == 0) {
88 return rpc.invokeEmpty();
90 if (args.length != 1) {
91 throw new IllegalArgumentException("Input must be provided.");
93 return rpc.invoke((TreeNode) args[0]);
96 if (isObjectMethod(method)) {
97 return callObjectMethod(proxy, method, args);
99 throw new UnsupportedOperationException("Method " + method.toString() + "is unsupported.");
102 private static boolean isObjectMethod(final Method method) {
103 switch (method.getName()) {
105 return method.getReturnType().equals(String.class) && method.getParameterTypes().length == 0;
107 return method.getReturnType().equals(int.class) && method.getParameterTypes().length == 0;
109 return method.getReturnType().equals(boolean.class) && method.getParameterTypes().length == 1
110 && method.getParameterTypes()[0] == Object.class;
116 private Object callObjectMethod(final Object self, final Method method, final Object[] args) {
117 switch (method.getName()) {
119 return type.getName() + "$Adapter{delegate=" + delegate.toString() + "}";
121 return System.identityHashCode(self);
123 return self == args[0];
129 private abstract class RpcInvocationStrategy {
131 private final SchemaPath rpcName;
133 protected RpcInvocationStrategy(final SchemaPath path) {
137 final ListenableFuture<RpcResult<?>> invoke(final TreeNode input) {
138 return invoke0(rpcName, serialize(input));
141 abstract NormalizedNode<?, ?> serialize(TreeNode input);
143 final ListenableFuture<RpcResult<?>> invokeEmpty() {
144 return invoke0(rpcName, null);
147 final SchemaPath getRpcName() {
151 private ListenableFuture<RpcResult<?>> invoke0(final SchemaPath schemaPath, final NormalizedNode<?, ?> input) {
152 final ListenableFuture<DOMRpcResult> listenInPoolThread =
153 JdkFutureAdapters.listenInPoolThread(delegate.invokeRpc(schemaPath, input));
154 if (listenInPoolThread instanceof LazyDOMOperationResultFuture) {
155 return ((LazyDOMOperationResultFuture) listenInPoolThread).getBindingFuture();
158 return transformFuture(schemaPath, listenInPoolThread, codec.getCodecFactory());
161 private ListenableFuture<RpcResult<?>> transformFuture(final SchemaPath rpc,
162 final ListenableFuture<DOMRpcResult> domFuture, final BindingNormalizedNodeCodecRegistry codec) {
163 return Futures.transform(domFuture, (Function<DOMRpcResult, RpcResult<?>>) input -> {
164 final NormalizedNode<?, ?> domData = input.getResult();
165 final TreeNode bindingResult;
166 if (domData != null) {
167 final SchemaPath rpcOutput = rpc.createChild(QName.create(rpc.getLastComponent(), "output"));
168 bindingResult = codec.fromNormalizedNodeOperationData(rpcOutput, (ContainerNode) domData);
170 bindingResult = null;
172 return RpcResult.class.cast(RpcResultBuilder.success(bindingResult).build());
173 }, MoreExecutors.directExecutor());
178 private final class NonRoutedStrategy extends RpcInvocationStrategy {
180 protected NonRoutedStrategy(final SchemaPath path) {
185 NormalizedNode<?, ?> serialize(final TreeNode input) {
186 return LazySerializedContainerNode.create(getRpcName(), input, codec.getCodecRegistry());
191 private final class RoutedStrategy extends RpcInvocationStrategy {
193 private final ContextReferenceExtractor refExtractor;
194 private final NodeIdentifier contextName;
196 protected RoutedStrategy(final SchemaPath path, final Method rpcMethod, final QName leafName) {
198 final Optional<Class<? extends Instantiable<?>>> maybeInputType =
199 BindingReflections.resolveOperationInputClass(rpcMethod);
200 Preconditions.checkState(maybeInputType.isPresent(), "RPC method %s has no input", rpcMethod.getName());
201 final Class<? extends Instantiable<?>> inputType = maybeInputType.get();
202 refExtractor = ContextReferenceExtractor.from(inputType);
203 this.contextName = new NodeIdentifier(leafName);
206 @SuppressWarnings("rawtypes")
208 NormalizedNode<?, ?> serialize(final TreeNode input) {
209 final InstanceIdentifier<?> bindingII = refExtractor.extract(input);
210 if (bindingII != null) {
211 final YangInstanceIdentifier yangII = codec.toYangInstanceIdentifierCached(bindingII);
212 final LeafNode contextRef = ImmutableNodes.leafNode(contextName, yangII);
213 return LazySerializedContainerNode.withContextRef(getRpcName(), input, contextRef,
214 codec.getCodecRegistry());
216 return LazySerializedContainerNode.create(getRpcName(), input, codec.getCodecRegistry());