2 * Copyright (c) 2013 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.nettyutil.handler.exi;
11 import com.google.common.collect.Lists;
12 import java.util.List;
13 import org.opendaylight.controller.config.util.xml.XmlUtil;
14 import org.opendaylight.netconf.api.NetconfMessage;
15 import org.opendaylight.netconf.api.xml.XmlNetconfConstants;
16 import org.openexi.proc.common.EXIOptions;
17 import org.w3c.dom.Document;
18 import org.w3c.dom.Element;
19 import org.slf4j.Logger;
20 import org.slf4j.LoggerFactory;
23 * Start-exi netconf message.
25 public final class NetconfStartExiMessage extends NetconfMessage {
27 public static final String START_EXI = "start-exi";
28 public static final String ALIGNMENT_KEY = "alignment";
29 public static final String FIDELITY_KEY = "fidelity";
30 public static final String COMMENTS_KEY = "comments";
31 public static final String DTD_KEY = "dtd";
32 public static final String LEXICAL_VALUES_KEY = "lexical-values";
33 public static final String PIS_KEY = "pis";
34 public static final String PREFIXES_KEY = "prefixes";
35 private static final Logger LOG = LoggerFactory.getLogger(NetconfStartExiMessage.class);
36 private NetconfStartExiMessage(final Document doc) {
40 public static NetconfStartExiMessage create(final EXIOptions exiOptions, final String messageId) {
41 final Document doc = XmlUtil.newDocument();
42 final Element rpcElement = doc.createElementNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0,
43 XmlNetconfConstants.RPC_KEY);
44 rpcElement.setAttributeNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0,
45 XmlNetconfConstants.MESSAGE_ID, messageId);
47 // TODO draft http://tools.ietf.org/html/draft-varga-netconf-exi-capability-02#section-3.5.1 has no namespace for start-exi element in xml
48 final Element startExiElement = doc.createElementNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_EXI_1_0,
51 addAlignment(exiOptions, doc, startExiElement);
52 addFidelity(exiOptions, doc, startExiElement);
54 rpcElement.appendChild(startExiElement);
56 doc.appendChild(rpcElement);
57 return new NetconfStartExiMessage(doc);
60 private static void addFidelity(final EXIOptions exiOptions, final Document doc, final Element startExiElement) {
61 final List<Element> fidelityElements = Lists.newArrayList();
62 createFidelityElement(doc, fidelityElements, exiOptions.getPreserveComments(), COMMENTS_KEY);
63 createFidelityElement(doc, fidelityElements, exiOptions.getPreserveDTD(), DTD_KEY);
64 createFidelityElement(doc, fidelityElements, exiOptions.getPreserveLexicalValues(), LEXICAL_VALUES_KEY);
65 createFidelityElement(doc, fidelityElements, exiOptions.getPreservePIs(), PIS_KEY);
66 createFidelityElement(doc, fidelityElements, exiOptions.getPreserveNS(), PREFIXES_KEY);
68 if (fidelityElements.isEmpty() == false) {
69 final Element fidelityElement = doc.createElementNS(
70 XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_EXI_1_0, FIDELITY_KEY);
71 for (final Element element : fidelityElements) {
72 fidelityElement.appendChild(element);
74 startExiElement.appendChild(fidelityElement);
78 private static void addAlignment(final EXIOptions exiOptions, final Document doc, final Element startExiElement) {
79 final Element alignmentElement = doc.createElementNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_EXI_1_0,
82 String alignmentString;
83 switch (exiOptions.getAlignmentType()) {
85 alignmentString = EXIParameters.EXI_PARAMETER_BYTE_ALIGNED;
89 alignmentString = EXIParameters.EXI_PARAMETER_COMPRESSED;
93 alignmentString = EXIParameters.EXI_PARAMETER_PRE_COMPRESSION;
97 LOG.warn("Unexpected value in EXI alignment type: {} , using default value", exiOptions.getAlignmentType());
99 alignmentString = EXIParameters.EXI_PARAMETER_BIT_PACKED;
104 alignmentElement.setTextContent(alignmentString);
105 startExiElement.appendChild(alignmentElement);
108 private static void createFidelityElement(final Document doc, final List<Element> fidelityElements, final boolean fidelity, final String fidelityName) {
111 fidelityElements.add(doc.createElementNS(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_EXI_1_0,