1 | // License: GPL. Copyright 2007 by Immanuel Scholz and others
|
---|
2 | package org.openstreetmap.josm.io;
|
---|
3 |
|
---|
4 | import static org.openstreetmap.josm.tools.I18n.tr;
|
---|
5 |
|
---|
6 | import java.io.IOException;
|
---|
7 | import java.io.InputStream;
|
---|
8 | import java.io.InputStreamReader;
|
---|
9 | import java.io.StringReader;
|
---|
10 | import java.io.UnsupportedEncodingException;
|
---|
11 | import java.util.Date;
|
---|
12 |
|
---|
13 | import javax.xml.parsers.ParserConfigurationException;
|
---|
14 | import javax.xml.parsers.SAXParserFactory;
|
---|
15 |
|
---|
16 | import org.openstreetmap.josm.data.coor.LatLon;
|
---|
17 | import org.openstreetmap.josm.data.osm.ChangesetDataSet;
|
---|
18 | import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
|
---|
19 | import org.openstreetmap.josm.data.osm.ChangesetDataSet.ChangesetModificationType;
|
---|
20 | import org.openstreetmap.josm.data.osm.history.HistoryNode;
|
---|
21 | import org.openstreetmap.josm.data.osm.history.HistoryOsmPrimitive;
|
---|
22 | import org.openstreetmap.josm.data.osm.history.HistoryRelation;
|
---|
23 | import org.openstreetmap.josm.data.osm.history.HistoryWay;
|
---|
24 | import org.openstreetmap.josm.gui.progress.NullProgressMonitor;
|
---|
25 | import org.openstreetmap.josm.gui.progress.ProgressMonitor;
|
---|
26 | import org.openstreetmap.josm.tools.CheckParameterUtil;
|
---|
27 | import org.openstreetmap.josm.tools.DateUtils;
|
---|
28 | import org.xml.sax.Attributes;
|
---|
29 | import org.xml.sax.InputSource;
|
---|
30 | import org.xml.sax.Locator;
|
---|
31 | import org.xml.sax.SAXException;
|
---|
32 | import org.xml.sax.SAXParseException;
|
---|
33 | import org.xml.sax.helpers.DefaultHandler;
|
---|
34 |
|
---|
35 | /**
|
---|
36 | * Parser for OSM changeset content.
|
---|
37 | *
|
---|
38 | */
|
---|
39 | public class OsmChangesetContentParser {
|
---|
40 |
|
---|
41 | private InputSource source;
|
---|
42 | private ChangesetDataSet data;
|
---|
43 |
|
---|
44 | private class Parser extends DefaultHandler {
|
---|
45 |
|
---|
46 | /** the current primitive to be read */
|
---|
47 | private HistoryOsmPrimitive currentPrimitive;
|
---|
48 | /** the current change modification type */
|
---|
49 | private ChangesetDataSet.ChangesetModificationType currentModificationType;
|
---|
50 |
|
---|
51 | private Locator locator;
|
---|
52 |
|
---|
53 | @Override
|
---|
54 | public void setDocumentLocator(Locator locator) {
|
---|
55 | this.locator = locator;
|
---|
56 | }
|
---|
57 |
|
---|
58 | protected void throwException(String message) throws OsmDataParsingException {
|
---|
59 | throw new OsmDataParsingException(
|
---|
60 | message
|
---|
61 | ).rememberLocation(locator);
|
---|
62 | }
|
---|
63 |
|
---|
64 | protected void throwException(Exception e) throws OsmDataParsingException {
|
---|
65 | throw new OsmDataParsingException(
|
---|
66 | e
|
---|
67 | ).rememberLocation(locator);
|
---|
68 | }
|
---|
69 |
|
---|
70 | protected long getMandatoryAttributeLong(Attributes attr, String name) throws SAXException{
|
---|
71 | String v = attr.getValue(name);
|
---|
72 | if (v == null) {
|
---|
73 | throwException(tr("Missing mandatory attribute ''{0}''.", name));
|
---|
74 | }
|
---|
75 | Long l = 0l;
|
---|
76 | try {
|
---|
77 | l = Long.parseLong(v);
|
---|
78 | } catch(NumberFormatException e) {
|
---|
79 | throwException(tr("Illegal value for mandatory attribute ''{0}'' of type long. Got ''{1}''.", name, v));
|
---|
80 | }
|
---|
81 | if (l < 0) {
|
---|
82 | throwException(tr("Illegal value for mandatory attribute ''{0}'' of type long (>=0). Got ''{1}''.", name, v));
|
---|
83 | }
|
---|
84 | return l;
|
---|
85 | }
|
---|
86 |
|
---|
87 | protected long getAttributeLong(Attributes attr, String name, long defaultValue) throws SAXException{
|
---|
88 | String v = attr.getValue(name);
|
---|
89 | if (v == null)
|
---|
90 | return defaultValue;
|
---|
91 | Long l = 0l;
|
---|
92 | try {
|
---|
93 | l = Long.parseLong(v);
|
---|
94 | } catch(NumberFormatException e) {
|
---|
95 | throwException(tr("Illegal value for mandatory attribute ''{0}'' of type long. Got ''{1}''.", name, v));
|
---|
96 | }
|
---|
97 | if (l < 0) {
|
---|
98 | throwException(tr("Illegal value for mandatory attribute ''{0}'' of type long (>=0). Got ''{1}''.", name, v));
|
---|
99 | }
|
---|
100 | return l;
|
---|
101 | }
|
---|
102 |
|
---|
103 | protected Double getMandatoryAttributeDouble(Attributes attr, String name) throws SAXException{
|
---|
104 | String v = attr.getValue(name);
|
---|
105 | if (v == null) {
|
---|
106 | throwException(tr("Missing mandatory attribute ''{0}''.", name));
|
---|
107 | }
|
---|
108 | double d = 0.0;
|
---|
109 | try {
|
---|
110 | d = Double.parseDouble(v);
|
---|
111 | } catch(NumberFormatException e) {
|
---|
112 | throwException(tr("Illegal value for mandatory attribute ''{0}'' of type double. Got ''{1}''.", name, v));
|
---|
113 | }
|
---|
114 | return d;
|
---|
115 | }
|
---|
116 |
|
---|
117 | protected String getMandatoryAttributeString(Attributes attr, String name) throws SAXException{
|
---|
118 | String v = attr.getValue(name);
|
---|
119 | if (v == null) {
|
---|
120 | throwException(tr("Missing mandatory attribute ''{0}''.", name));
|
---|
121 | }
|
---|
122 | return v;
|
---|
123 | }
|
---|
124 |
|
---|
125 | protected String getAttributeString(Attributes attr, String name, String defaultValue) {
|
---|
126 | String v = attr.getValue(name);
|
---|
127 | if (v == null)
|
---|
128 | return defaultValue;
|
---|
129 | return v;
|
---|
130 | }
|
---|
131 |
|
---|
132 | protected boolean getMandatoryAttributeBoolean(Attributes attr, String name) throws SAXException{
|
---|
133 | String v = attr.getValue(name);
|
---|
134 | if (v == null) {
|
---|
135 | throwException(tr("Missing mandatory attribute ''{0}''.", name));
|
---|
136 | }
|
---|
137 | if ("true".equals(v)) return true;
|
---|
138 | if ("false".equals(v)) return false;
|
---|
139 | throwException(tr("Illegal value for mandatory attribute ''{0}'' of type boolean. Got ''{1}''.", name, v));
|
---|
140 | // not reached
|
---|
141 | return false;
|
---|
142 | }
|
---|
143 |
|
---|
144 | protected HistoryOsmPrimitive createPrimitive(Attributes atts, OsmPrimitiveType type) throws SAXException {
|
---|
145 | long id = getMandatoryAttributeLong(atts,"id");
|
---|
146 | long version = getMandatoryAttributeLong(atts,"version");
|
---|
147 | long changesetId = getMandatoryAttributeLong(atts,"changeset");
|
---|
148 | boolean visible= getMandatoryAttributeBoolean(atts, "visible");
|
---|
149 | long uid = getAttributeLong(atts, "uid",-1);
|
---|
150 | String user = getAttributeString(atts, "user", tr("<anonymous>"));
|
---|
151 | String v = getMandatoryAttributeString(atts, "timestamp");
|
---|
152 | Date timestamp = DateUtils.fromString(v);
|
---|
153 | HistoryOsmPrimitive primitive = null;
|
---|
154 | if (type.equals(OsmPrimitiveType.NODE)) {
|
---|
155 | double lat = getMandatoryAttributeDouble(atts, "lat");
|
---|
156 | double lon = getMandatoryAttributeDouble(atts, "lon");
|
---|
157 | primitive = new HistoryNode(
|
---|
158 | id,version,visible,user,uid,changesetId,timestamp, new LatLon(lat,lon)
|
---|
159 | );
|
---|
160 |
|
---|
161 | } else if (type.equals(OsmPrimitiveType.WAY)) {
|
---|
162 | primitive = new HistoryWay(
|
---|
163 | id,version,visible,user,uid,changesetId,timestamp
|
---|
164 | );
|
---|
165 | }if (type.equals(OsmPrimitiveType.RELATION)) {
|
---|
166 | primitive = new HistoryRelation(
|
---|
167 | id,version,visible,user,uid,changesetId,timestamp
|
---|
168 | );
|
---|
169 | }
|
---|
170 | return primitive;
|
---|
171 | }
|
---|
172 |
|
---|
173 | protected void startNode(Attributes atts) throws SAXException {
|
---|
174 | currentPrimitive= createPrimitive(atts, OsmPrimitiveType.NODE);
|
---|
175 | }
|
---|
176 |
|
---|
177 | protected void startWay(Attributes atts) throws SAXException {
|
---|
178 | currentPrimitive= createPrimitive(atts, OsmPrimitiveType.WAY);
|
---|
179 | }
|
---|
180 | protected void startRelation(Attributes atts) throws SAXException {
|
---|
181 | currentPrimitive= createPrimitive(atts, OsmPrimitiveType.RELATION);
|
---|
182 | }
|
---|
183 |
|
---|
184 | protected void handleTag(Attributes atts) throws SAXException {
|
---|
185 | String key= getMandatoryAttributeString(atts, "k");
|
---|
186 | String value= getMandatoryAttributeString(atts, "v");
|
---|
187 | currentPrimitive.put(key,value);
|
---|
188 | }
|
---|
189 |
|
---|
190 | protected void handleNodeReference(Attributes atts) throws SAXException {
|
---|
191 | long ref = getMandatoryAttributeLong(atts, "ref");
|
---|
192 | ((HistoryWay)currentPrimitive).addNode(ref);
|
---|
193 | }
|
---|
194 |
|
---|
195 | protected void handleMember(Attributes atts) throws SAXException {
|
---|
196 | long ref = getMandatoryAttributeLong(atts, "ref");
|
---|
197 | String v = getMandatoryAttributeString(atts, "type");
|
---|
198 | OsmPrimitiveType type = null;
|
---|
199 | try {
|
---|
200 | type = OsmPrimitiveType.fromApiTypeName(v);
|
---|
201 | } catch(IllegalArgumentException e) {
|
---|
202 | throwException(tr("Illegal value for mandatory attribute ''{0}'' of type OsmPrimitiveType. Got ''{1}''.", "type", v));
|
---|
203 | }
|
---|
204 | String role = getMandatoryAttributeString(atts, "role");
|
---|
205 | org.openstreetmap.josm.data.osm.history.RelationMember member = new org.openstreetmap.josm.data.osm.history.RelationMember(role, type,ref);
|
---|
206 | ((HistoryRelation)currentPrimitive).addMember(member);
|
---|
207 | }
|
---|
208 |
|
---|
209 | @Override public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
|
---|
210 | if (qName.equals("node")) {
|
---|
211 | startNode(atts);
|
---|
212 | } else if (qName.equals("way")) {
|
---|
213 | startWay(atts);
|
---|
214 | } else if (qName.equals("relation")) {
|
---|
215 | startRelation(atts);
|
---|
216 | } else if (qName.equals("tag")) {
|
---|
217 | handleTag(atts);
|
---|
218 | } else if (qName.equals("nd")) {
|
---|
219 | handleNodeReference(atts);
|
---|
220 | } else if (qName.equals("member")) {
|
---|
221 | handleMember(atts);
|
---|
222 | } else if (qName.equals("osmChange")) {
|
---|
223 | // do nothing
|
---|
224 | } else if (qName.equals("create")) {
|
---|
225 | currentModificationType = ChangesetModificationType.CREATED;
|
---|
226 | } else if (qName.equals("modify")) {
|
---|
227 | currentModificationType = ChangesetModificationType.UPDATED;
|
---|
228 | } else if (qName.equals("delete")) {
|
---|
229 | currentModificationType = ChangesetModificationType.DELETED;
|
---|
230 | } else {
|
---|
231 | System.err.println(tr("Warning: unsupported start element ''{0}'' in changeset content at position ({1},{2}). Skipping.", qName, locator.getLineNumber(), locator.getColumnNumber()));
|
---|
232 | }
|
---|
233 | }
|
---|
234 |
|
---|
235 | @Override
|
---|
236 | public void endElement(String uri, String localName, String qName) throws SAXException {
|
---|
237 | if (qName.equals("node")
|
---|
238 | || qName.equals("way")
|
---|
239 | || qName.equals("relation")) {
|
---|
240 | if (currentModificationType == null) {
|
---|
241 | throwException(tr("Illegal document structure. Found node, way, or relation outside of ''create'', ''modify'', or ''delete''."));
|
---|
242 | }
|
---|
243 | data.put(currentPrimitive, currentModificationType);
|
---|
244 | } else if (qName.equals("osmChange")) {
|
---|
245 | // do nothing
|
---|
246 | } else if (qName.equals("create")) {
|
---|
247 | currentModificationType = null;
|
---|
248 | } else if (qName.equals("modify")) {
|
---|
249 | currentModificationType = null;
|
---|
250 | } else if (qName.equals("delete")) {
|
---|
251 | currentModificationType = null;
|
---|
252 | } else if (qName.equals("tag")) {
|
---|
253 | // do nothing
|
---|
254 | } else if (qName.equals("nd")) {
|
---|
255 | // do nothing
|
---|
256 | } else if (qName.equals("member")) {
|
---|
257 | // do nothing
|
---|
258 | } else {
|
---|
259 | System.err.println(tr("Warning: unsupported end element ''{0}'' in changeset content at position ({1},{2}). Skipping.", qName, locator.getLineNumber(), locator.getColumnNumber()));
|
---|
260 | }
|
---|
261 | }
|
---|
262 |
|
---|
263 | @Override
|
---|
264 | public void error(SAXParseException e) throws SAXException {
|
---|
265 | throwException(e);
|
---|
266 | }
|
---|
267 |
|
---|
268 | @Override
|
---|
269 | public void fatalError(SAXParseException e) throws SAXException {
|
---|
270 | throwException(e);
|
---|
271 | }
|
---|
272 | }
|
---|
273 |
|
---|
274 | /**
|
---|
275 | * Create a parser
|
---|
276 | *
|
---|
277 | * @param source the input stream with the changeset content as XML document. Must not be null.
|
---|
278 | * @throws IllegalArgumentException thrown if source is null.
|
---|
279 | */
|
---|
280 | public OsmChangesetContentParser(InputStream source) throws UnsupportedEncodingException {
|
---|
281 | CheckParameterUtil.ensureParameterNotNull(source, "source");
|
---|
282 | this.source = new InputSource(new InputStreamReader(source, "UTF-8"));
|
---|
283 | data = new ChangesetDataSet();
|
---|
284 | }
|
---|
285 |
|
---|
286 | public OsmChangesetContentParser(String source) {
|
---|
287 | CheckParameterUtil.ensureParameterNotNull(source, "source");
|
---|
288 | this.source = new InputSource(new StringReader(source));
|
---|
289 | data = new ChangesetDataSet();
|
---|
290 | }
|
---|
291 |
|
---|
292 | /**
|
---|
293 | * Parses the content
|
---|
294 | *
|
---|
295 | * @param progressMonitor the progress monitor. Set to {@see NullProgressMonitor#INSTANCE}
|
---|
296 | * if null
|
---|
297 | * @return the parsed data
|
---|
298 | * @throws OsmDataParsingException thrown if something went wrong. Check for chained
|
---|
299 | * exceptions.
|
---|
300 | */
|
---|
301 | public ChangesetDataSet parse(ProgressMonitor progressMonitor) throws OsmDataParsingException {
|
---|
302 | if (progressMonitor == null) {
|
---|
303 | progressMonitor = NullProgressMonitor.INSTANCE;
|
---|
304 | }
|
---|
305 | try {
|
---|
306 | progressMonitor.beginTask("");
|
---|
307 | progressMonitor.indeterminateSubTask(tr("Parsing changeset content ..."));
|
---|
308 | SAXParserFactory.newInstance().newSAXParser().parse(source, new Parser());
|
---|
309 | } catch(OsmDataParsingException e){
|
---|
310 | throw e;
|
---|
311 | } catch (ParserConfigurationException e) {
|
---|
312 | throw new OsmDataParsingException(e);
|
---|
313 | } catch(SAXException e) {
|
---|
314 | throw new OsmDataParsingException(e);
|
---|
315 | } catch(IOException e) {
|
---|
316 | throw new OsmDataParsingException(e);
|
---|
317 | } finally {
|
---|
318 | progressMonitor.finishTask();
|
---|
319 | }
|
---|
320 | return data;
|
---|
321 | }
|
---|
322 |
|
---|
323 | /**
|
---|
324 | * Parses the content from the input source
|
---|
325 | *
|
---|
326 | * @return the parsed data
|
---|
327 | * @throws OsmDataParsingException thrown if something went wrong. Check for chained
|
---|
328 | * exceptions.
|
---|
329 | */
|
---|
330 | public ChangesetDataSet parse() throws OsmDataParsingException {
|
---|
331 | return parse(null);
|
---|
332 | }
|
---|
333 | }
|
---|