2 * Copyright (c) 2015 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
9 package org.opendaylight.netconf.monitoring;
11 import com.google.common.base.Optional;
12 import com.google.common.collect.Maps;
14 import org.opendaylight.netconf.api.DocumentedException;
15 import org.opendaylight.netconf.api.monitoring.NetconfMonitoringService;
16 import org.opendaylight.netconf.api.xml.XmlElement;
17 import org.opendaylight.netconf.api.xml.XmlNetconfConstants;
18 import org.opendaylight.netconf.api.xml.XmlUtil;
19 import org.opendaylight.netconf.util.mapping.AbstractSingletonNetconfOperation;
20 import org.slf4j.Logger;
21 import org.slf4j.LoggerFactory;
22 import org.w3c.dom.Document;
23 import org.w3c.dom.Element;
25 public class GetSchema extends AbstractSingletonNetconfOperation {
26 public static final String GET_SCHEMA = "get-schema";
27 public static final String IDENTIFIER = "identifier";
28 public static final String VERSION = "version";
30 private static final Logger LOG = LoggerFactory.getLogger(GetSchema.class);
31 private final NetconfMonitoringService cap;
33 public GetSchema(final NetconfMonitoringService cap) {
34 super(MonitoringConstants.MODULE_NAME);
39 protected String getOperationName() {
44 protected String getOperationNamespace() {
45 return XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_YANG_IETF_NETCONF_MONITORING;
49 protected Element handleWithNoSubsequentOperations(final Document document, final XmlElement xml)
50 throws DocumentedException {
51 final GetSchemaEntry entry;
53 entry = new GetSchemaEntry(xml);
57 schema = cap.getSchemaForCapability(entry.identifier, entry.version);
58 } catch (final IllegalStateException e) {
59 final Map<String, String> errorInfo = Maps.newHashMap();
60 errorInfo.put(DocumentedException.ErrorTag.OPERATION_FAILED.toString(), e.getMessage());
61 LOG.warn("Rpc error: {}", DocumentedException.ErrorTag.OPERATION_FAILED, e);
62 throw new DocumentedException(e.getMessage(), e, DocumentedException.ErrorType.APPLICATION,
63 DocumentedException.ErrorTag.OPERATION_FAILED,
64 DocumentedException.ErrorSeverity.ERROR, errorInfo);
67 final Element getSchemaResult;
68 getSchemaResult = XmlUtil.createTextElement(document, XmlNetconfConstants.DATA_KEY, schema,
69 Optional.of(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_YANG_IETF_NETCONF_MONITORING));
70 LOG.trace("{} operation successful", GET_SCHEMA);
72 return getSchemaResult;
75 private static final class GetSchemaEntry {
76 private final String identifier;
77 private final Optional<String> version;
79 GetSchemaEntry(final XmlElement getSchemaElement) throws DocumentedException {
80 getSchemaElement.checkName(GET_SCHEMA);
81 getSchemaElement.checkNamespace(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_YANG_IETF_NETCONF_MONITORING);
83 XmlElement identifierElement = null;
85 identifierElement = getSchemaElement.getOnlyChildElementWithSameNamespace(IDENTIFIER);
86 } catch (final DocumentedException e) {
87 LOG.trace("Can't get identifier element as only child element with same namespace due to ", e);
88 throw DocumentedException.wrap(e);
90 identifier = identifierElement.getTextContent();
91 final Optional<XmlElement> versionElement = getSchemaElement
92 .getOnlyChildElementWithSameNamespaceOptionally(VERSION);
93 if (versionElement.isPresent()) {
94 version = Optional.of(versionElement.get().getTextContent());
96 version = Optional.absent();