2 * Copyright (c) 2016 Cisco Systems, Inc. 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.netconf.sal.connect.netconf.schema.mapping;
10 import com.google.common.base.Preconditions;
11 import com.google.common.collect.ImmutableMap;
12 import java.io.IOException;
13 import javax.xml.stream.XMLStreamException;
14 import javax.xml.transform.dom.DOMResult;
15 import javax.xml.transform.dom.DOMSource;
16 import org.opendaylight.mdsal.dom.api.DOMNotification;
17 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
18 import org.opendaylight.mdsal.dom.spi.DefaultDOMRpcResult;
19 import org.opendaylight.netconf.api.NetconfMessage;
20 import org.opendaylight.netconf.api.xml.XmlElement;
21 import org.opendaylight.netconf.api.xml.XmlUtil;
22 import org.opendaylight.netconf.sal.connect.api.MessageTransformer;
23 import org.opendaylight.netconf.sal.connect.netconf.util.NetconfMessageTransformUtil;
24 import org.opendaylight.netconf.sal.connect.util.MessageCounter;
25 import org.opendaylight.yangtools.yang.common.QName;
26 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
27 import org.opendaylight.yangtools.yang.data.api.schema.DOMSourceAnyxmlNode;
28 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
29 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
30 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
31 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
32 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
33 import org.w3c.dom.Document;
34 import org.w3c.dom.Element;
37 * Transforms base netconf RPCs.
39 public class BaseRpcSchemalessTransformer implements MessageTransformer {
40 private final ImmutableMap<QName, ? extends RpcDefinition> mappedRpcs;
41 private final EffectiveModelContext modelContext;
42 private final MessageCounter counter;
44 public BaseRpcSchemalessTransformer(final BaseNetconfSchemas baseSchemas, final MessageCounter counter) {
45 final BaseSchema baseSchema = baseSchemas.getBaseSchema();
46 mappedRpcs = baseSchema.getMappedRpcs();
47 modelContext = baseSchema.getEffectiveModelContext();
48 this.counter = counter;
52 public DOMNotification toNotification(final NetconfMessage message) {
53 throw new UnsupportedOperationException("Notifications not supported.");
57 public NetconfMessage toRpcRequest(final QName rpc, final NormalizedNode payload) {
58 // In case no input for rpc is defined, we can simply construct the payload here
60 final RpcDefinition mappedRpc = Preconditions.checkNotNull(mappedRpcs.get(rpc),
61 "Unknown rpc %s, available rpcs: %s", rpc, mappedRpcs.keySet());
62 final DOMResult domResult = NetconfMessageTransformUtil.prepareDomResultForRpcRequest(rpc, counter);
63 if (mappedRpc.getInput().getChildNodes().isEmpty()) {
64 return new NetconfMessage(domResult.getNode().getOwnerDocument());
67 Preconditions.checkNotNull(payload, "Transforming an rpc with input: %s, payload cannot be null", rpc);
68 Preconditions.checkArgument(payload instanceof ContainerNode,
69 "Transforming an rpc with input: %s, payload has to be a container, but was: %s", rpc, payload);
71 final DOMResult result = domResult;
73 NetconfMessageTransformUtil.writeNormalizedOperationInput((ContainerNode) payload, result, Absolute.of(rpc),
75 } catch (final XMLStreamException | IOException | IllegalStateException e) {
76 throw new IllegalStateException("Unable to serialize input of " + rpc, e);
79 final Document node = result.getNode().getOwnerDocument();
81 return new NetconfMessage(node);
85 public DOMRpcResult toRpcResult(final NetconfMessage message, final QName rpc) {
86 final ContainerNode normalizedNode;
87 if (NetconfMessageTransformUtil.isDataRetrievalOperation(rpc)) {
88 final Element xmlData = NetconfMessageTransformUtil.getDataSubtree(message.getDocument());
89 final Document data = XmlUtil.newDocument();
90 data.appendChild(data.importNode(xmlData, true));
91 DOMSourceAnyxmlNode xmlDataNode = Builders.anyXmlBuilder()
92 .withNodeIdentifier(NetconfMessageTransformUtil.NETCONF_DATA_NODEID)
93 .withValue(new DOMSource(data))
96 normalizedNode = Builders.containerBuilder()
97 .withNodeIdentifier(NetconfMessageTransformUtil.NETCONF_RPC_REPLY_NODEID)
98 .withChild(xmlDataNode).build();
100 //other base rpcs don't have any output, we can simply construct the payload here
101 Preconditions.checkArgument(isOkPresent(message.getDocument()),
102 "Unexpected content in response of rpc: %s, %s", rpc, message);
103 normalizedNode = null;
106 return new DefaultDOMRpcResult(normalizedNode);
109 // FIXME this should go to some util class
110 static boolean isOkPresent(final Document doc) {
111 return XmlElement.fromDomDocument(doc).getOnlyChildElementWithSameNamespaceOptionally("ok").isPresent();