Mercurial > hg > MetaDataManagerRestlet

comparison src/de/mpiwg/itgroup/nimanager/edit/Editor.java @ 4:aae47a713589

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editing
author dwinter
date Mon, 02 Jan 2012 12:42:28 +0100
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3:dfd72ea936ff 4:aae47a713589
1 package de.mpiwg.itgroup.nimanager.edit;
2
3 import java.io.UnsupportedEncodingException;
4 import java.net.URLDecoder;
5 import java.util.ArrayList;
6 import java.util.Collection;
7 import java.util.HashMap;
8 import java.util.Iterator;
9 import java.util.List;
10 import java.util.Map;
11 import java.util.Set;
12
13 import org.apache.commons.lang.StringUtils;
14 import org.apache.log4j.Level;
15 import org.apache.log4j.Logger;
16 import org.apache.log4j.lf5.util.StreamUtils;
17 import org.openrdf.model.Statement;
18 import org.openrdf.repository.RepositoryException;
19 import org.openrdf.repository.RepositoryResult;
20 import org.restlet.Context;
21 import org.restlet.data.ClientInfo;
22 import org.restlet.data.Form;
23 import org.restlet.data.MediaType;
24 import org.restlet.data.Status;
25 import org.restlet.engine.component.ChildContext;
26 import org.restlet.representation.Representation;
27 import org.restlet.representation.StringRepresentation;
28 import org.restlet.resource.Get;
29 import org.restlet.resource.Post;
30 import org.restlet.resource.ServerResource;
31 import org.restlet.security.User;
32
33 import de.mpiwg.itgroup.metaDataManagerRestlet.RestServer;
34 import de.mpiwg.itgroup.triplestoremanager.exceptions.TripleStoreHandlerException;
35 import de.mpiwg.itgroup.triplestoremanager.owl.MetaDataHandler;
36 import de.mpiwg.itgroup.triplestoremanager.owl.TripleStoreHandler;
37 import de.mpiwg.itgroup.triplestoremanager.owl.TripleStoreHandler.LiteralQuadruple;
38 import de.mpiwg.itgroup.triplestoremanager.owl.TripleStoreHandler.Quadruple;
39 import edu.stanford.smi.protegex.owl.model.impl.DefaultRDFProperty;
40 import edu.stanford.smi.protege.model.DefaultCls;
41 /**
42 * @author dwinter
43 *
44 * Edit an Entity defined by OWL modell
45 */
46 public class Editor extends ServerResource {
47
48 private String NAMED_ENTITIES_ONTOLOGIE_URL = "http://ontologies.mpiwg-berlin.mpg.de/authorities/namedIdentities";
49 private String VIRTUOSO_PW;
50 private String VIRTUOSO_USER;
51 private String virtuoso_server_url;
52 private String TRIPLE_INDEX_PATH;
53 private Logger rl = Logger.getRootLogger();
54 private MetaDataHandler mh;
55 private TripleStoreHandler th;
56 private String editGraph="file:///personEdits.rdf";
57
58
59 public Editor (){
60 ChildContext context = (ChildContext)Context.getCurrent();
61 virtuoso_server_url = context.getParameters().getFirstValue("de.mpwig.itgroup.personSearch.virtuoso.url");
62 VIRTUOSO_PW = context.getParameters().getFirstValue("de.mpwig.itgroup.personSearch.virtuoso.pw");
63 VIRTUOSO_USER = context.getParameters().getFirstValue("de.mpwig.itgroup.personSearch.virtuoso.user");
64 rl.setLevel(Level.DEBUG);
65 try {
66 th = TripleStoreHandler.getInstance(virtuoso_server_url, VIRTUOSO_USER, VIRTUOSO_PW);
67
68 //th = new TripleStoreHandler(virtuoso_server_url, VIRTUOSO_USER, VIRTUOSO_PW);
69 } catch (TripleStoreHandlerException e) {
70 // TODO Auto-generated catch block
71 e.printStackTrace();
72 }
73
74 mh = MetaDataHandler.getInstance();
75 }
76
77 public Editor(String serverUrl,String User, String PW){
78 virtuoso_server_url = serverUrl;
79 VIRTUOSO_PW = PW;
80 VIRTUOSO_USER = User;
81
82 try {
83 th = TripleStoreHandler.getInstance(virtuoso_server_url, VIRTUOSO_USER, VIRTUOSO_PW);
84 //th = new TripleStoreHandler(virtuoso_server_url, VIRTUOSO_USER, VIRTUOSO_PW);
85 } catch (TripleStoreHandlerException e) {
86 // TODO Auto-generated catch block
87 e.printStackTrace();
88 }
89
90 mh = MetaDataHandler.getInstance();
91 }
92 /**
93 * Hole alle Properties eines Instance wie definiert in OWL.
94 * @param instance
95 * @return
96 */
97 private HashMap<String, Object> getProperties(String instance, List<String> NSFilter){
98 RepositoryResult<Statement> stmts;
99 HashMap<String, Object> retMap = new HashMap<String, Object>();
100 try {
101 stmts= th.getStatements(instance, "http://www.w3.org/1999/02/22-rdf-syntax-ns#type", null);
102 } catch (RepositoryException e) {
103 // TODO Auto-generated catch block
104 e.printStackTrace();
105 return null;
106 }
107 try {
108 while(stmts.hasNext()){
109 Statement stmt = stmts.next();
110 addPropsOfType(retMap,stmt.getObject().stringValue(),instance, NSFilter);
111 }
112 } catch (RepositoryException e) {
113 // TODO Auto-generated catch block
114 e.printStackTrace();
115 return null;
116 }
117
118
119 return retMap;
120 }
121 private void addPropsOfType(HashMap<String, Object> retMap,
122 String cls, String instance, List<String> NSfilter) {
123
124 // Set props = mh.getAssociatedPropsForClass(cls);
125 // Iterator propsIt = props.iterator();
126 // while (propsIt.hasNext()){
127 // Object prop = propsIt.next();
128 //
129 //
130 // }
131 Collection props = mh.getAssociatedPropsForClass(cls);
132
133 // filter namespaces
134 if (NSfilter!=null){
135
136 Object[] propsCopy = props.toArray();
137 for (Object prop:propsCopy){
138 if (DefaultRDFProperty.class.isInstance(prop)){
139 DefaultRDFProperty rdfProp = (DefaultRDFProperty)prop;
140 rl.debug(rdfProp.getNamespace());
141 if (!NSfilter.contains(rdfProp.getNamespace())){ // nicht im filter
142 props.remove(prop);
143 }
144 }
145 }
146 }
147
148 Map<String, Object> newProps;
149 try {
150 newProps = th.getJenaRDFValues(props, instance, mh.getOwlModel(),true);
151 } catch (RepositoryException e) {
152 // TODO Auto-generated catch block
153 e.printStackTrace();
154 return;
155 }
156
157 retMap.putAll(newProps);
158
159
160 }
161
162 @Post
163 public Representation postHTML(Representation entity){
164 User user = handleBasicAuthentification(entity);
165 if (user==null){
166 setStatus(Status.CLIENT_ERROR_UNAUTHORIZED);
167 return null;
168 }
169
170 Form form = new Form(entity);
171
172 String id = form.getFirstValue("id");
173 if (id==null){
174 setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
175 return new StringRepresentation("Parameter ID missing");
176 }
177
178 String type = form.getFirstValue("type");
179 if (type==null){
180 setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
181 return new StringRepresentation("Parameter type missing");
182 }
183
184
185 ArrayList<Quadruple> quads = new ArrayList<Quadruple>();
186 ArrayList<Quadruple> deleteQuads = new ArrayList<Quadruple>();
187 Map<String,String> formMap = form.getValuesMap();
188 for (String key: formMap.keySet()){
189 if (isDataTypeProperty(key,type)){
190 String value=formMap.get(key);
191
192 //remove white space
193 value=StringUtils.stripEnd(value, null);
194 value=StringUtils.stripStart(value, null);
195
196 if (value!=null && !value.equals("")){ //not empty
197 deleteQuads.add(new LiteralQuadruple(id, key, null, editGraph));
198 quads.add(new LiteralQuadruple(id, key, formMap.get(key), editGraph));
199 }
200 }
201 }
202 try {
203 th.remove(deleteQuads);
204 th.write(quads);
205 } catch (RepositoryException e) {
206 setStatus(Status.SERVER_ERROR_INTERNAL);
207 e.printStackTrace();
208 return null;
209 } catch (TripleStoreHandlerException e) {
210 setStatus(Status.SERVER_ERROR_INTERNAL);
211 e.printStackTrace();
212 return null;
213 }
214
215 return new StringRepresentation("written");
216
217 }
218
219 /**
220 * Checks if the
221 * @param key
222 * @param value
223 * @return
224 */
225 private boolean isDataTypeProperty(String key,String type) {
226
227
228 Collection props = mh.getAssociatedPropsForClass(type);
229
230
231 Object[] propsCopy = props.toArray();
232 for (Object prop:propsCopy){
233 if (DefaultRDFProperty.class.isInstance(prop)){
234 DefaultRDFProperty rdfProp = (DefaultRDFProperty)prop;
235 rl.debug(rdfProp.getNamespace());
236 if (rdfProp.getName().equals(key)){
237 rl.debug(rdfProp);
238 return true;
239 }
240 }
241 }
242 return false;
243 }
244
245
246 @Get("html")
247 public Representation getHTML(Representation entity){
248 Form form = getRequest().getResourceRef().getQueryAsForm();
249
250
251 String id =form.getValuesMap().get("id");
252 try {
253 id = URLDecoder.decode(id, "utf-8");
254 } catch (UnsupportedEncodingException e) {
255 e.printStackTrace();
256 e.printStackTrace();
257 setStatus(Status.SERVER_ERROR_INTERNAL, "REPOSITORY ERROR");
258 return new StringRepresentation(
259 "<xml><error>Unsupported encoding</error></xml>",
260 MediaType.TEXT_HTML);
261
262 }
263 id=StringUtils.stripEnd(id, null);
264 id=StringUtils.stripStart(id, null);
265
266 ArrayList<String> NSFilter = new ArrayList<String>();
267 NSFilter.add("http://xmlns.com/foaf/0.1/"); // only foaf
268 HashMap<String, Object> props = getProperties(id, NSFilter);
269
270
271 ArrayList<String> NSFilterRDF = new ArrayList<String>();
272 NSFilterRDF.add("http://www.w3.org/1999/02/22-rdf-syntax-ns#"); // only foaf
273 HashMap<String, Object> propsRDF = getProperties(id, NSFilterRDF);
274
275 String RDFtype = ((DefaultCls)(propsRDF.get("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"))).getName();
276
277
278 String retString="<html><body><form method=\"post\" class=\"editEntity\">";
279 retString+=String.format("<input type=\"hidden\" name=\"id\" value=\"%s\" len=\"50\">", id);
280 retString+=String.format("<input type=\"hidden\" name=\"type\" value=\"%s\" len=\"50\">", RDFtype);
281 for (String prop: props.keySet()){
282
283 retString+=String.format("<div class=\"labelEntity\">%s<input type=\"text\" name=\"%s\" value=\"%s\" len=\"50\"></div>",
284 prop,prop,String.valueOf(props.get(prop)));
285 }
286
287 retString+="<input type=\"submit\"/>";
288 retString+="</form></body></html>";
289 return new StringRepresentation(retString,MediaType.TEXT_HTML);
290
291 }
292
293
294 private User handleBasicAuthentification(Representation entity) {
295 RestServer restServer = (RestServer) getApplication();
296 if (!restServer.authenticate(getRequest(), getResponse())) {
297 // Not authenticated
298 return null;
299 }
300
301 ClientInfo ci = getRequest().getClientInfo();
302 rl.debug(ci);
303 return getRequest().getClientInfo().getUser();
304
305 }
306
307 public static void main(String args[]) {
308 Logger.getRootLogger().setLevel(Level.DEBUG);
309 Editor ed = new Editor("jdbc:virtuoso://virtuoso.mpiwg-berlin.mpg.de:1111","dba","wa55er");
310 ArrayList<String> NSFilter = new ArrayList<String>();
311 NSFilter.add("http://xmlns.com/foaf/0.1/"); // only foaf
312 HashMap<String, Object> props = ed.getProperties("http://ontologies.mpiwg-berlin.mpg.de/tempObjects/person/370868",NSFilter);
313 System.out.println(props);
314
315 }
316 }