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annotate artifact-database/src/main/java/de/intevation/artifactdatabase/rest/ServicesResource.java @ 95:0edcaf5b5c78

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The path to database can be configured with a path relative to the configuration directory. artifacts/trunk@1007 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 27 Apr 2010 16:12:37 +0000
parents d348fe1fd822
children 933bbc9fc11f
rev   line source
72
b01e47317a78 Added '/services' url to web server to list the available services in XML.
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1 package de.intevation.artifactdatabase.rest;
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2
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3 import de.intevation.artifactdatabase.XMLUtils.ElementCreator;
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4
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5 import de.intevation.artifactdatabase.XMLUtils;
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6
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7 import de.intevation.artifacts.ArtifactDatabase;
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8 import de.intevation.artifacts.ArtifactNamespaceContext;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import org.restlet.data.MediaType;
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13
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14 import org.restlet.ext.xml.DomRepresentation;
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15
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16 import org.restlet.representation.Representation;
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17
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18 import org.restlet.resource.ResourceException;
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19
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20 import org.w3c.dom.Document;
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21 import org.w3c.dom.Element;
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22
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23 /**
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24 * Resource to list the available service offered by the artifact database.
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25 *
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26 * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a>
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27 */
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28 public class ServicesResource
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29 extends BaseResource
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30 {
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31 private static Logger logger = Logger.getLogger(ServicesResource.class);
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32
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33 /**
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34 * server URL where to reach the resource.
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35 */
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36 public static final String PATH = "/services";
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37
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38 @Override
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39 protected Representation innerGet()
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40 throws ResourceException
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41 {
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42 Document document = XMLUtils.newDocument();
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43
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44 ElementCreator ec = new ElementCreator(
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45 document,
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46 ArtifactNamespaceContext.NAMESPACE_URI,
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47 ArtifactNamespaceContext.NAMESPACE_PREFIX);
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48
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49 ArtifactDatabase db = (ArtifactDatabase)getContext()
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50 .getAttributes().get("database");
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51
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52 Element root = ec.create("result");
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53 document.appendChild(root);
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54
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55 Element type = ec.create("type");
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56 ec.addAttr(type, "name", "service-list");
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57 root.appendChild(type);
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58
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59 Element factories = ec.create("services");
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60 root.appendChild(factories);
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61
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62 String [][] factoryNames = db.serviceNamesAndDescriptions();
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63
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64 for (int i = 0; i < factoryNames.length; ++i) {
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65 String [] nd = factoryNames[i];
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66 Element factoryElement = ec.create("service");
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67 ec.addAttr(factoryElement, "name", nd[0]);
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68 ec.addAttr(factoryElement, "description", nd[1]);
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69 factories.appendChild(factoryElement);
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70 }
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71
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72 document.normalizeDocument();
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73
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74 return new DomRepresentation(
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75 MediaType.APPLICATION_XML, document);
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76 }
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77 }
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78 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org