1 package org.opendaylight.controller.sal.connect.netconf;
5 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.NetconfState;
6 import org.opendaylight.yangtools.yang.common.QName;
7 import org.opendaylight.yangtools.yang.common.RpcResult;
8 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
9 import org.opendaylight.yangtools.yang.data.api.SimpleNode;
10 import org.opendaylight.yangtools.yang.data.impl.ImmutableCompositeNode;
11 import org.opendaylight.yangtools.yang.data.impl.util.CompositeNodeBuilder;
12 import org.opendaylight.yangtools.yang.model.util.repo.SchemaSourceProvider;
14 import com.google.common.base.Optional;
15 import com.google.common.base.Preconditions;
17 class NetconfRemoteSchemaSourceProvider implements SchemaSourceProvider<String> {
19 public static final QName IETF_NETCONF_MONITORING = QName.create(
20 "urn:ietf:params:xml:ns:yang:ietf-netconf-monitoring", "2010-10-04", "ietf-netconf-monitoring");
21 public static final QName GET_SCHEMA_QNAME = QName.create(IETF_NETCONF_MONITORING, "get-schema");
22 public static final QName GET_DATA_QNAME = QName.create(IETF_NETCONF_MONITORING, "data");
26 public NetconfRemoteSchemaSourceProvider(NetconfDevice device) {
32 public Optional<String> getSchemaSource(String moduleName, Optional<String> revision) {
33 CompositeNodeBuilder<ImmutableCompositeNode> request = ImmutableCompositeNode.builder(); //
34 request.setQName(GET_SCHEMA_QNAME) //
35 .addLeaf("format", "yang") //
36 .addLeaf("identifier", moduleName); //
37 if (revision.isPresent()) {
38 request.addLeaf("version", revision.get());
41 device.logger.trace("Loading YANG schema source for {}:{}", moduleName, revision);
42 RpcResult<CompositeNode> schemaReply = device.invokeRpc(GET_SCHEMA_QNAME, request.toInstance());
43 if (schemaReply.isSuccessful()) {
44 String schemaBody = getSchemaFromRpc(schemaReply.getResult());
45 if (schemaBody != null) {
46 device.logger.trace("YANG Schema successfully retrieved from remote for {}:{}", moduleName, revision);
47 return Optional.of(schemaBody);
50 device.logger.warn("YANG shcema was not successfully retrieved.");
51 return Optional.absent();
54 private String getSchemaFromRpc(CompositeNode result) {
58 SimpleNode<?> simpleNode = result.getFirstSimpleByName(GET_DATA_QNAME.withoutRevision());
59 Object potential = simpleNode.getValue();
60 if (potential instanceof String) {
61 return (String) potential;
66 public static final boolean isSupportedFor(Set<QName> capabilities) {
67 return capabilities.contains(IETF_NETCONF_MONITORING);