source: AnnotationManagerN4J/src/main/java/de/mpiwg/itgroup/annotations/restlet/annotations_ui/AnnotationResource.java @ 95:acd44dfec9c8

Last change on this file since 95:acd44dfec9c8 was 95:acd44dfec9c8, checked in by casties, 9 years ago

added last update field for annotations in database.
File size: 8.6 KB
Line 
1/**
2 *
3 */
4package de.mpiwg.itgroup.annotations.restlet.annotations_ui;
5
6/*
7 * #%L
8 * AnnotationManager
9 * %%
10 * Copyright (C) 2012 - 2014 MPIWG Berlin
11 * %%
12 * This program is free software: you can redistribute it and/or modify
13 * it under the terms of the GNU Lesser General Public License as
14 * published by the Free Software Foundation, either version 3 of the
15 * License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 * GNU General Lesser Public License for more details.
21 *
22 * You should have received a copy of the GNU General Lesser Public
23 * License along with this program.  If not, see
24 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
25 * #L%
26 */
27
28import java.io.UnsupportedEncodingException;
29import java.net.URLDecoder;
30import java.util.logging.Logger;
31
32import org.restlet.data.Form;
33import org.restlet.data.MediaType;
34import org.restlet.data.Reference;
35import org.restlet.data.Status;
36import org.restlet.representation.Representation;
37import org.restlet.representation.StringRepresentation;
38import org.restlet.resource.Delete;
39import org.restlet.resource.Get;
40import org.restlet.resource.Put;
41import org.restlet.resource.ResourceException;
42import org.restlet.resource.ServerResource;
43
44import de.mpiwg.itgroup.annotations.Annotation;
45import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore;
46import de.mpiwg.itgroup.annotations.restlet.BaseRestlet;
47
48/**
49 * Resource class for a single annotation.
50 *
51 * @author casties
52 *
53 */
54public class AnnotationResource extends ServerResource {
55
56    public static Logger logger = Logger.getLogger("de.mpiwg.itgroup.annotations.restlet.annotations_ui.AnnotationResource");
57
58    protected AnnotationStore store;
59
60    protected String requestId;
61
62    protected Annotation annotation;
63
64    @Override
65    protected void doInit() throws ResourceException {
66        super.doInit();
67        // id from URI /annotations/annotation/{id}
68        requestId = (String) getRequest().getAttributes().get("id");
69        logger.fine("annoation-id=" + requestId);
70        // get store instance
71        if (store == null) {
72            store = ((BaseRestlet) getApplication()).getAnnotationStore();
73        }
74        // get annotation from store
75        if (requestId != null) {
76            // URL decode
77            try {
78                requestId = URLDecoder.decode(requestId, "UTF-8");
79            } catch (UnsupportedEncodingException e) {
80                // this shouldn't happen
81            }
82            // the ID in the path is encoded
83            String id = Annotation.decodeId(requestId);
84            annotation = store.getAnnotationById(id);
85        }
86    }
87
88    /**
89     * GET with HTML content type. Shows the annotation.
90     *
91     * @param entity
92     * @return
93     */
94    @Get("html")
95    public Representation doGetHTML(Representation entity) {
96        if (annotation == null) {
97            // invalid id
98            setStatus(Status.CLIENT_ERROR_NOT_FOUND);
99            return null;
100        }
101        String result = null;
102        // get form parameter
103        Form f = this.getQuery();
104        String form = f.getFirstValue("form");
105        if (form != null && form.equals("edit")) {
106            /*
107            // output edit form
108            result = "<html><body>\n";
109            result += String.format("<h1>Edit person %s</h1>\n", annotation.getId());
110            result += String.format("<p><a href=\"%s\">All persons</a></p>", this.getReference().getParentRef());
111            // tunnel PUT method through POST
112            result += String.format("<form method=\"post\" action=\"%s?method=PUT\">\n", this.getReference().getHierarchicalPart());
113            result += "<table>";
114            result += String.format("<tr><td><b>name</b></td><td><input type=\"text\" name=\"name\" value=\"%s\"/></td></tr>\n",
115                    annotation.getName());
116            result += String.format("<tr><td><b>uri</b></td><td><input type=\"text\" name=\"uri\" value=\"%s\"/></td></tr>\n",
117                    annotation.getUriString());
118            result += "</table>\n";
119            result += "<p><input type=\"submit\"/></p>";
120            result += "</table>\n</form>\n</body>\n</html>";
121            */
122        } else {
123            // output content
124            result = "<html><body>\n<h1>Annotation</h1>\n";
125            result += String.format("<p><a href=\"%s\">All annotations</a></p>", this.getReference().getParentRef());
126            result += "<table>";
127            result += String.format("<tr><td><b>uri</b></td><td>%s</td></tr>\n", annotation.getUri());
128            result += String.format("<tr><td><b>text</b></td><td>%s</td></tr>\n", annotation.getBodyText());
129            result += String.format("<tr><td><b>target</b></td><td>%s</td></tr>\n", annotation.getTargetBaseUri());
130            result += String.format("<tr><td><b>fragment</b></td><td>%s</td></tr>\n", annotation.getTargetFragment());
131            result += String.format("<tr><td><b>quote</b></td><td>%s</td></tr>\n", annotation.getQuote());
132            result += String.format("<tr><td><b>resource</b></td><td>%s</td></tr>\n", annotation.getResourceUri());
133            result += String.format("<tr><td><b>creator</b></td><td>%s</td></tr>\n", annotation.getCreatorName());
134            result += String.format("<tr><td><b>created</b></td><td>%s</td></tr>\n", annotation.getCreated());
135            result += String.format("<tr><td><b>updated</b></td><td>%s</td></tr>\n", annotation.getUpdated());
136            result += "</table>\n";
137            result += "<br/>\n";
138            result += "<table>";
139            result += String.format("<tr><td><b>admin permission</b></td><td>%s</td></tr>\n", annotation.getAdminPermission() != null ? annotation.getAdminPermission().getIdString() : "null");
140            result += String.format("<tr><td><b>delete permission</b></td><td>%s</td></tr>\n", annotation.getDeletePermission() != null ? annotation.getDeletePermission().getIdString() : "null");
141            result += String.format("<tr><td><b>update permission</b></td><td>%s</td></tr>\n", annotation.getUpdatePermission() != null ? annotation.getUpdatePermission().getIdString() : "null");
142            result += String.format("<tr><td><b>read permission</b></td><td>%s</td></tr>\n", annotation.getReadPermission() != null ? annotation.getReadPermission().getIdString() : "null");
143            result += "</table>\n";
144            //result += "<p><a href=\"?form=edit\">Edit annotation</a></p>\n";
145            // tunnel POST as DELETE
146            result += String.format(
147                    "<form method=\"post\" action=\"%s?method=DELETE\"><input type=\"submit\" value=\"Delete annotation\"/></form>\n",
148                    this.getReference().getHierarchicalPart());
149            result += "</body>\n</html>";
150        }
151        return new StringRepresentation(result, MediaType.TEXT_HTML);
152    }
153
154    /**
155     * PUT updates the annotation.
156     *
157     * @param entity
158     * @return
159     */
160    @Put
161    public Representation doPut(Representation entity) {
162        logger.fine("AnnotationResource.doPut!");
163        if (annotation == null) {
164            // invalid id
165            setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
166            return null;
167        }
168        // NOT YET
169        return null;
170        /*
171        // TODO: do authentication
172        Form form = new Form(entity);
173        String name = form.getFirstValue("name");
174        String uri = form.getFirstValue("uri");
175        if (name != null && !name.isEmpty()) {
176            annotation.setName(name);
177        }
178        if (uri != null && !uri.isEmpty()) {
179            annotation.setUri(uri);
180        }
181        store.storeActor(annotation);
182        // return 303: see other
183        setStatus(Status.REDIRECTION_SEE_OTHER);
184        // go GET same URL
185        Reference url = this.getReference();
186        this.getResponse().setLocationRef(url);
187        return null;
188        */
189    }
190
191    /**
192     * DELETE deletes the annotation.
193     *
194     * @param entity
195     * @return
196     */
197    @Delete
198    public Representation doDelete(Representation entity) {
199        logger.fine("AnnotationResource.doDelete!");
200        if (annotation == null) {
201            // invalid id
202            setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
203            return null;
204        }
205        // TODO: do authentication
206        store.deleteAnnotationById(annotation.getUri());
207        // return 303: see other
208        setStatus(Status.REDIRECTION_SEE_OTHER);
209        // go GET parent URL
210        Reference url = this.getReference().getParentRef();
211        this.getResponse().setLocationRef(url);
212        return null;
213    }
214}
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