|
1
|
1 package de.mpiwg.itgroup.annotations.restlet;
|
|
|
2
|
|
|
3 import java.io.File;
|
|
|
4 import java.io.FileInputStream;
|
|
|
5 import java.io.FileNotFoundException;
|
|
|
6 import java.io.IOException;
|
|
|
7 import java.io.InputStream;
|
|
|
8 import java.util.Hashtable;
|
|
|
9 import java.util.Properties;
|
|
|
10
|
|
|
11 import javax.naming.NamingEnumeration;
|
|
|
12 import javax.naming.NamingException;
|
|
|
13 import javax.naming.directory.Attribute;
|
|
|
14 import javax.naming.directory.DirContext;
|
|
|
15 import javax.naming.directory.InitialDirContext;
|
|
|
16 import javax.naming.directory.SearchControls;
|
|
|
17 import javax.naming.directory.SearchResult;
|
|
|
18 import javax.servlet.ServletContext;
|
|
|
19
|
|
|
20 import org.apache.log4j.BasicConfigurator;
|
|
|
21 import org.apache.log4j.Logger;
|
|
3
|
22 import org.neo4j.graphdb.GraphDatabaseService;
|
|
|
23 import org.neo4j.graphdb.factory.GraphDatabaseFactory;
|
|
|
24 import org.neo4j.kernel.AbstractGraphDatabase;
|
|
|
25 import org.neo4j.server.WrappingNeoServerBootstrapper;
|
|
1
|
26 import org.restlet.Application;
|
|
|
27 import org.restlet.Context;
|
|
|
28 import org.restlet.Restlet;
|
|
|
29 import org.restlet.routing.Router;
|
|
|
30
|
|
4
|
31 import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore;
|
|
1
|
32
|
|
|
33 public class RestServer extends Application {
|
|
|
34
|
|
4
|
35 public static Logger logger = Logger.getLogger(RestServer.class);
|
|
1
|
36
|
|
|
37 /**
|
|
|
38 * Properties holding consumer keys and secrets
|
|
|
39 */
|
|
|
40 private Properties consumerKeys;
|
|
3
|
41 public String CONSUMER_KEYS_PATH = "WEB-INF/consumerkeys.property";
|
|
|
42
|
|
|
43 private GraphDatabaseService graphDb;
|
|
|
44 public static final String GRAPHDB_KEY = "annotationmanager.graphdb";
|
|
|
45 public String DB_PATH = "WEB-INF/neo4j-annotation-db";
|
|
1
|
46
|
|
4
|
47 private WrappingNeoServerBootstrapper srv;
|
|
|
48 public static final String GRAPHDBSRV_KEY = "annotationmanager.graphdb.srv";
|
|
|
49
|
|
|
50 private AnnotationStore store;
|
|
|
51 public static final String ANNSTORE_KEY = "annotationmanager.store";
|
|
|
52
|
|
1
|
53 /**
|
|
|
54 * constructor
|
|
|
55 *
|
|
|
56 * @param parentContext
|
|
|
57 */
|
|
|
58 public RestServer(Context parentContext) {
|
|
|
59 super(parentContext);
|
|
3
|
60 // TODO: is this the right place to run the log4j configurator?
|
|
1
|
61 BasicConfigurator.configure();
|
|
3
|
62
|
|
|
63 ServletContext sc = (ServletContext) getContext().getServerDispatcher().getContext().getAttributes()
|
|
1
|
64 .get("org.restlet.ext.servlet.ServletContext");
|
|
|
65 if (sc != null) {
|
|
3
|
66 // look for database service in context
|
|
|
67 graphDb = (GraphDatabaseService) sc.getAttribute(GRAPHDB_KEY);
|
|
|
68 if (graphDb == null) {
|
|
|
69 /*
|
|
|
70 * open database
|
|
|
71 */
|
|
|
72 String dbFn = getResourcePath(sc, DB_PATH);
|
|
|
73 if (dbFn != null) {
|
|
|
74 logger.debug("opening DB " + dbFn);
|
|
|
75 graphDb = new GraphDatabaseFactory().newEmbeddedDatabase(dbFn);
|
|
4
|
76 registerShutdownHook(graphDb);
|
|
3
|
77 // store in context
|
|
|
78 sc.setAttribute(GRAPHDB_KEY, graphDb);
|
|
4
|
79 // AnnotationStore
|
|
|
80 store = new AnnotationStore(graphDb);
|
|
|
81 sc.setAttribute(ANNSTORE_KEY, store);
|
|
|
82 // admin server
|
|
|
83 srv = new WrappingNeoServerBootstrapper((AbstractGraphDatabase) graphDb);
|
|
3
|
84 logger.debug("Starting DB admin server...");
|
|
4
|
85 // store in context
|
|
|
86 sc.setAttribute(GRAPHDBSRV_KEY, srv);
|
|
3
|
87 srv.start();
|
|
|
88 } else {
|
|
|
89 logger.error("Unable to get resource " + DB_PATH);
|
|
1
|
90 }
|
|
|
91 }
|
|
3
|
92 /*
|
|
|
93 * read consumerKeys from webapp
|
|
|
94 */
|
|
|
95 consumerKeys = new Properties();
|
|
|
96 InputStream ps = getResourceAsStream(sc, CONSUMER_KEYS_PATH);
|
|
1
|
97 if (ps != null) {
|
|
3
|
98 logger.debug("loading consumer keys from " + CONSUMER_KEYS_PATH);
|
|
1
|
99 try {
|
|
|
100 consumerKeys.load(ps);
|
|
|
101 } catch (IOException e) {
|
|
|
102 // TODO Auto-generated catch block
|
|
|
103 e.printStackTrace();
|
|
|
104 }
|
|
3
|
105 logger.debug("consumer keys: " + consumerKeys);
|
|
1
|
106 } else {
|
|
3
|
107 logger.error("Unable to get resource " + CONSUMER_KEYS_PATH);
|
|
1
|
108 }
|
|
|
109 } else {
|
|
3
|
110 logger.error("Unable to get ServletContext!");
|
|
1
|
111 }
|
|
3
|
112
|
|
1
|
113 }
|
|
3
|
114
|
|
1
|
115 /**
|
|
3
|
116 * returns consumer secret for consumer key. returns null if consumer key
|
|
|
117 * doesn't exist.
|
|
|
118 *
|
|
1
|
119 * @param consumerKey
|
|
|
120 * @return
|
|
|
121 */
|
|
|
122 public String getConsumerSecret(String consumerKey) {
|
|
|
123 return consumerKeys.getProperty(consumerKey);
|
|
|
124 }
|
|
|
125
|
|
|
126 /*
|
|
|
127 * (non-Javadoc)
|
|
|
128 *
|
|
|
129 * @see org.restlet.Application#createInboundRoot()
|
|
|
130 */
|
|
|
131 @Override
|
|
|
132 public Restlet createInboundRoot() {
|
|
3
|
133 // this.authenticator = createAuthenticator();
|
|
1
|
134
|
|
|
135 Router router = new Router(getContext());
|
|
3
|
136
|
|
1
|
137 router.attach("/annotator/annotations", AnnotatorAnnotations.class);
|
|
|
138 router.attach("/annotator/annotations/{id}", AnnotatorAnnotations.class);
|
|
4
|
139 router.attach("/annotator/search", AnnotatorSearch.class);
|
|
3
|
140
|
|
|
141 // router.attach("",redirector); router.attach("/annotator",
|
|
|
142 // ExtendedAnnotationInput.class);
|
|
|
143
|
|
1
|
144 router.attach("/", AnnotatorInfo.class);
|
|
3
|
145 // authenticator.setNext(router);
|
|
|
146 // return authenticator;
|
|
|
147
|
|
1
|
148 return router;
|
|
|
149 }
|
|
|
150
|
|
|
151 /**
|
|
|
152 * Hole den vollen Benutzernamen aus dem LDAP
|
|
|
153 *
|
|
|
154 * @param creator
|
|
|
155 * @return
|
|
|
156 */
|
|
|
157 public String getUserNameFromLdap(String creator) {
|
|
|
158 String retString = creator; // falls nichts gefunden wird einfach den
|
|
|
159 // creator zurueckgeben
|
|
|
160 Hashtable<String, String> env = new Hashtable<String, String>();
|
|
|
161 String sp = "com.sun.jndi.ldap.LdapCtxFactory";
|
|
|
162 env.put(javax.naming.Context.INITIAL_CONTEXT_FACTORY, sp);
|
|
|
163
|
|
3
|
164 // TODO: should go into config file
|
|
|
165 String ldapUrl = "ldap://ldapreplik.mpiwg-berlin.mpg.de/dc=mpiwg-berlin,dc=mpg,dc=de";
|
|
1
|
166 env.put(javax.naming.Context.PROVIDER_URL, ldapUrl);
|
|
|
167
|
|
|
168 DirContext dctx;
|
|
|
169 try {
|
|
|
170 dctx = new InitialDirContext(env);
|
|
|
171 } catch (NamingException e1) {
|
|
|
172 // TODO Auto-generated catch block
|
|
|
173 e1.printStackTrace();
|
|
|
174 return retString;
|
|
|
175 }
|
|
|
176
|
|
|
177 String base = "ou=People";
|
|
|
178
|
|
|
179 SearchControls sc = new SearchControls();
|
|
|
180 String[] attributeFilter = { "cn", "mail" };
|
|
|
181 sc.setReturningAttributes(attributeFilter);
|
|
|
182 sc.setSearchScope(SearchControls.SUBTREE_SCOPE);
|
|
|
183
|
|
|
184 String filter = "(uid=" + creator + ")";
|
|
|
185
|
|
|
186 try {
|
|
3
|
187 NamingEnumeration<SearchResult> results = dctx.search(base, filter, sc);
|
|
1
|
188 while (results.hasMore()) {
|
|
|
189 SearchResult sr = (SearchResult) results.next();
|
|
|
190 javax.naming.directory.Attributes attrs = sr.getAttributes();
|
|
|
191
|
|
|
192 Attribute attr = attrs.get("cn");
|
|
|
193 retString = (String) attr.get();
|
|
|
194 }
|
|
|
195 } catch (NamingException e) {
|
|
|
196 // TODO Auto-generated catch block
|
|
|
197 e.printStackTrace();
|
|
|
198 }
|
|
|
199
|
|
|
200 try {
|
|
|
201 dctx.close();
|
|
|
202 } catch (NamingException e) {
|
|
|
203 // TODO Auto-generated catch block
|
|
|
204 e.printStackTrace();
|
|
|
205 }
|
|
|
206 return retString;
|
|
|
207 }
|
|
|
208
|
|
3
|
209 /**
|
|
|
210 * returns resource from path (in webapp) as InputStream.
|
|
|
211 *
|
|
|
212 * @param sc
|
|
|
213 * @param path
|
|
|
214 * @return
|
|
|
215 */
|
|
|
216 protected InputStream getResourceAsStream(ServletContext sc, String path) {
|
|
|
217 InputStream ps = sc.getResourceAsStream(path);
|
|
|
218 if (ps == null) {
|
|
|
219 // try as file
|
|
|
220 File pf = new File(sc.getRealPath(path));
|
|
|
221 if (pf != null) {
|
|
|
222 logger.debug("trying file for: " + pf);
|
|
|
223 try {
|
|
|
224 ps = new FileInputStream(pf);
|
|
|
225 } catch (FileNotFoundException e) {
|
|
|
226 logger.error(e);
|
|
|
227 }
|
|
|
228 }
|
|
|
229 }
|
|
|
230 return ps;
|
|
|
231 }
|
|
|
232
|
|
|
233 /**
|
|
|
234 * get a real file name for a web app file pathname.
|
|
|
235 *
|
|
|
236 * If filename starts with "/" its treated as absolute else the path is
|
|
|
237 * appended to the base directory of the web-app.
|
|
|
238 *
|
|
|
239 * @param filename
|
|
|
240 * @param sc
|
|
|
241 * @return
|
|
|
242 */
|
|
|
243 public static String getResourcePath(ServletContext sc, String filename) {
|
|
|
244 File f = new File(filename);
|
|
|
245 // is the filename absolute?
|
|
|
246 if (!f.isAbsolute()) {
|
|
|
247 // relative path -> use getRealPath to resolve in webapp
|
|
|
248 filename = sc.getRealPath(filename);
|
|
|
249 }
|
|
|
250 return filename;
|
|
|
251 }
|
|
|
252
|
|
4
|
253 /* (non-Javadoc)
|
|
|
254 * @see org.restlet.Application#stop()
|
|
|
255 */
|
|
|
256 @Override
|
|
|
257 public synchronized void stop() throws Exception {
|
|
|
258 /*
|
|
|
259 * trying to clean up databases, nur sure if this is the right way...
|
|
|
260 */
|
|
|
261 if (srv != null) {
|
|
|
262 logger.debug("Stopping DB admin server...");
|
|
|
263 srv.stop();
|
|
|
264 srv = null;
|
|
|
265 }
|
|
|
266 if (graphDb != null) {
|
|
|
267 logger.debug("Stopping DB...");
|
|
|
268 graphDb.shutdown();
|
|
|
269 graphDb = null;
|
|
|
270 }
|
|
|
271 super.stop();
|
|
|
272 }
|
|
|
273
|
|
|
274 private static void registerShutdownHook(final GraphDatabaseService graphDb) {
|
|
|
275 // Registers a shutdown hook for the Neo4j instance so that it
|
|
|
276 // shuts down nicely when the VM exits (even if you "Ctrl-C" the
|
|
|
277 // running example before it's completed)
|
|
|
278 Runtime.getRuntime().addShutdownHook(new Thread() {
|
|
|
279 @Override
|
|
|
280 public void run() {
|
|
|
281 graphDb.shutdown();
|
|
|
282 }
|
|
|
283 });
|
|
|
284 }
|
|
|
285
|
|
|
286
|
|
1
|
287 }
|
