| 1 | /** |
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| 2 | * |
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| 3 | */ |
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| 4 | package de.mpiwg.itgroup.annotations.restlet.annotations_ui; |
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| 5 | |
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| 6 | /* |
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| 7 | * #%L |
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| 8 | * AnnotationManager |
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| 9 | * %% |
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| 10 | * Copyright (C) 2012 - 2014 MPIWG Berlin |
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| 11 | * %% |
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| 12 | * This program is free software: you can redistribute it and/or modify |
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| 13 | * it under the terms of the GNU Lesser General Public License as |
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| 14 | * published by the Free Software Foundation, either version 3 of the |
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| 15 | * License, or (at your option) any later version. |
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| 16 | * |
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| 17 | * This program is distributed in the hope that it will be useful, |
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| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 20 | * GNU General Lesser Public License for more details. |
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| 21 | * |
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| 22 | * You should have received a copy of the GNU General Lesser Public |
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| 23 | * License along with this program. If not, see |
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| 24 | * <http://www.gnu.org/licenses/lgpl-3.0.html>. |
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| 25 | * #L% |
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| 26 | */ |
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| 27 | |
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| 28 | import java.util.List; |
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| 29 | import java.util.logging.Logger; |
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| 30 | |
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| 31 | import org.restlet.data.Form; |
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| 32 | import org.restlet.data.MediaType; |
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| 33 | import org.restlet.data.Reference; |
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| 34 | import org.restlet.representation.Representation; |
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| 35 | import org.restlet.representation.StringRepresentation; |
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| 36 | import org.restlet.resource.Get; |
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| 37 | import org.restlet.resource.ResourceException; |
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| 38 | import org.restlet.resource.ServerResource; |
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| 39 | |
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| 40 | import de.mpiwg.itgroup.annotations.Annotation; |
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| 41 | import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore; |
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| 42 | import de.mpiwg.itgroup.annotations.restlet.AnnotatorResourceImpl; |
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| 43 | import de.mpiwg.itgroup.annotations.restlet.BaseRestlet; |
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| 44 | |
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| 45 | /** |
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| 46 | * Resource class for the list of annotations. |
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| 47 | * |
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| 48 | * @author casties |
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| 49 | * |
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| 50 | */ |
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| 51 | public class AnnotationsResource extends ServerResource { |
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| 52 | |
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| 53 | public static Logger logger = Logger.getLogger(AnnotationsResource.class.getCanonicalName()); |
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| 54 | |
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| 55 | private AnnotationStore store; |
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| 56 | |
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| 57 | @Override |
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| 58 | protected void doInit() throws ResourceException { |
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| 59 | super.doInit(); |
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| 60 | // get store instance |
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| 61 | if (store == null) { |
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| 62 | store = ((BaseRestlet) getApplication()).getAnnotationStore(); |
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| 63 | } |
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| 64 | } |
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| 65 | |
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| 66 | /** |
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| 67 | * GET with HTML content type. Lists all annotations. |
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| 68 | * |
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| 69 | * @param entity |
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| 70 | * @return |
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| 71 | */ |
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| 72 | @Get("html") |
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| 73 | public Representation doGetHTML(Representation entity) { |
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| 74 | Form form = getRequest().getResourceRef().getQueryAsForm(); |
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| 75 | int limit = AnnotatorResourceImpl.getInt(form.getFirstValue("limit", "100")); |
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| 76 | int offset = AnnotatorResourceImpl.getInt(form.getFirstValue("offset", "0")); |
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| 77 | int max = offset + limit; |
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| 78 | int numannots = store.getAnnotationCount(); |
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| 79 | String baseUrl = this.getReference().getHierarchicalPart(); |
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| 80 | StringBuilder result = null; |
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| 81 | // list all annotations |
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| 82 | result = new StringBuilder("<html><body>\n<h1>Annotations</h1>\n"); |
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| 83 | result.append("<p>"); |
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| 84 | if (offset > 0) { |
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| 85 | result.append(String.format(" <a href=\"%s?offset=%s&limit=%s\">prev</a> ", baseUrl, Math.max(offset - limit, 0), limit)); |
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| 86 | } |
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| 87 | result.append(String.format("| %s - %s of %s annotations |", offset, (offset + limit), numannots)); |
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| 88 | if (max < numannots) { |
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| 89 | result.append(String.format(" <a href=\"%s?offset=%s&limit=%s\">next</a>", baseUrl, Math.min(max, numannots), limit)); |
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| 90 | } |
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| 91 | result.append("</p>\n"); |
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| 92 | result.append("<table>"); |
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| 93 | result.append("<tr><th>uri</th><th>text</th><th>target</th><th>fragment</th><th>creator</th></tr>"); |
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| 94 | List<Annotation> annotations = store.getAnnotations("id", "*", limit, offset); |
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| 95 | for (Annotation annotation : annotations) { |
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| 96 | Reference url = this.getReference().clone(); |
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| 97 | url.addSegment(annotation.getUrlId()); |
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| 98 | result.append(String.format("<tr><td><a href=\"%s\">%s</a></td><td>%s</td><td><a href=\"%s\">%s</a></td><td>%s</td><td>%s</td></tr>\n", url, |
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| 99 | annotation.getUri(), annotation.getBodyText(), annotation.getTargetBaseUri(), annotation.getTargetBaseUri(), |
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| 100 | annotation.getTargetFragment(), annotation.getCreatorName())); |
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| 101 | } |
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| 102 | result.append("</table>\n"); |
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| 103 | result.append("</body>\n</html>"); |
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| 104 | return new StringRepresentation(result, MediaType.TEXT_HTML); |
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| 105 | } |
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| 106 | |
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| 107 | } |
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