Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/rest/ServiceResource.java @ 464:d4facc5e52e6 2.9.17

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Added tag 2.9.16 for changeset 86be4d8e44d4
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 05 Apr 2013 17:15:07 +0200
parents 9798e4d83681
children
rev   line source
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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.artifacts.ArtifactDatabase;
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12 import de.intevation.artifacts.ArtifactDatabaseException;
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13
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14 import java.io.IOException;
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15
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16 import org.apache.log4j.Logger;
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17
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18 import org.restlet.Request;
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19 import org.restlet.Response;
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20 import org.restlet.data.MediaType;
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21 import org.restlet.data.Status;
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22
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23 import org.restlet.ext.xml.DomRepresentation;
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24
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25 import org.restlet.representation.EmptyRepresentation;
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26 import org.restlet.representation.Representation;
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28 import org.w3c.dom.Document;
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29
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30 import de.intevation.artifacts.Service;
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32 /**
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33 * Resource to process incoming XML documents with a given service.
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34 *
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35 * @author <a href="mailto:sascha.teichmann@intevation">Sascha L. Teichmann</a>
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36 */
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37 public class ServiceResource
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38 extends BaseResource
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39 {
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40 private static Logger logger = Logger.getLogger(ServiceResource.class);
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41
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42 /**
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43 * server URL where to reach the resource.
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44 */
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45 public static final String PATH = "/service/{service}";
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46
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47 /**
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48 * Error message if no corresponing service is provided by
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49 * the artifact database.
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50 */
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51 public static final String NO_SUCH_ACTION_MESSAGE = "no such service";
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52
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53 @Override
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54 protected Representation innerPost(Representation requestRepr) {
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55
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56 Document inputDocument = null;
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57 try {
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58 DomRepresentation input = new DomRepresentation(requestRepr);
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59 input.setNamespaceAware(true);
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60 inputDocument = input.getDocument();
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61 }
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62 catch (IOException ioe) {
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63 logger.error(ioe.getMessage());
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64 Response response = getResponse();
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65 response.setStatus(Status.CLIENT_ERROR_BAD_REQUEST, ioe);
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66 return new EmptyRepresentation();
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67 }
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68
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69 Request request = getRequest();
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71 String service = (String)request.getAttributes().get("service");
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72
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73 ArtifactDatabase db = (ArtifactDatabase)getContext()
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74 .getAttributes().get("database");
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75
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76 try {
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77 return guessRepresentation(
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78 db.process(service, inputDocument, getCallMeta()));
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79 }
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80 catch (ArtifactDatabaseException adbe) {
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81 logger.warn(adbe.getLocalizedMessage(), adbe);
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82 Response response = getResponse();
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83 response.setStatus(
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84 Status.CLIENT_ERROR_BAD_REQUEST, adbe.getMessage());
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85 return new EmptyRepresentation();
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86 }
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87 }
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88
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89 protected static Representation guessRepresentation(Service.Output output) {
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90
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91 MediaType mediaType = new MediaType(output.getMIMEType());
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92 Object data = output.getData();
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93
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94 if (data instanceof Document) {
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95 return new DomRepresentation(mediaType, (Document)data);
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96 }
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97
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98 if (data instanceof byte []) {
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99 return new ByteArrayRepresentation(mediaType, (byte [])data);
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100 }
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101
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102 return new EmptyRepresentation();
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103 }
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104 }
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105 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org