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annotate artifact-database/src/main/java/de/intevation/artifactdatabase/rest/ServicesResource.java @ 164:268c2972d4a7

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Implemented the interface method listCollections() in the artifact database. artifacts/trunk@1389 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 03 Mar 2011 14:28:02 +0000
parents 933bbc9fc11f
children b2115f484edb
rev   line source
100
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.artifactdatabase.rest;
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10
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11 import de.intevation.artifactdatabase.XMLUtils.ElementCreator;
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12
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13 import de.intevation.artifactdatabase.XMLUtils;
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14
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15 import de.intevation.artifacts.ArtifactDatabase;
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16 import de.intevation.artifacts.ArtifactNamespaceContext;
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17
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18 import org.apache.log4j.Logger;
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19
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20 import org.restlet.data.MediaType;
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21
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22 import org.restlet.ext.xml.DomRepresentation;
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23
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24 import org.restlet.representation.Representation;
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25
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26 import org.restlet.resource.ResourceException;
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27
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28 import org.w3c.dom.Document;
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29 import org.w3c.dom.Element;
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30
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31 /**
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32 * Resource to list the available service offered by the artifact database.
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33 *
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34 * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a>
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35 */
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36 public class ServicesResource
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37 extends BaseResource
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38 {
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39 private static Logger logger = Logger.getLogger(ServicesResource.class);
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40
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41 /**
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42 * server URL where to reach the resource.
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43 */
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44 public static final String PATH = "/services";
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45
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46 @Override
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47 protected Representation innerGet()
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48 throws ResourceException
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49 {
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50 Document document = XMLUtils.newDocument();
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51
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52 ElementCreator ec = new ElementCreator(
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53 document,
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54 ArtifactNamespaceContext.NAMESPACE_URI,
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55 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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56
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57 ArtifactDatabase db = (ArtifactDatabase)getContext()
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58 .getAttributes().get("database");
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59
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60 Element root = ec.create("result");
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61 document.appendChild(root);
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62
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63 Element type = ec.create("type");
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64 ec.addAttr(type, "name", "service-list");
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65 root.appendChild(type);
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66
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67 Element factories = ec.create("services");
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68 root.appendChild(factories);
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69
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70 String [][] factoryNames = db.serviceNamesAndDescriptions();
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71
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72 for (int i = 0; i < factoryNames.length; ++i) {
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73 String [] nd = factoryNames[i];
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74 Element factoryElement = ec.create("service");
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75 ec.addAttr(factoryElement, "name", nd[0]);
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76 ec.addAttr(factoryElement, "description", nd[1]);
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77 factories.appendChild(factoryElement);
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78 }
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79
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80 document.normalizeDocument();
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81
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82 return new DomRepresentation(
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83 MediaType.APPLICATION_XML, document);
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84 }
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85 }
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86 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org