Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/de/intevation/artifactdatabase/rest/ArtifactResource.java @ 48:41c225c8bd41

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Add i18n support via "Accept-Language" HTTP headers. artifacts/trunk@168 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 01 Oct 2009 16:03:12 +0000
parents af22d4de275c
children 9a29899b31e5
rev   line source
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1 package de.intevation.artifactdatabase.rest;
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3 import org.restlet.resource.ResourceException;
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4
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5 import org.restlet.representation.Representation;
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6 import org.restlet.representation.EmptyRepresentation;
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7
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8 import org.restlet.ext.xml.DomRepresentation;
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9
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10 import de.intevation.artifacts.ArtifactDatabase;
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11 import de.intevation.artifacts.ArtifactDatabaseException;
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12 import de.intevation.artifacts.Artifact;
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13 import de.intevation.artifacts.ArtifactNamespaceContext;
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14
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15 import org.restlet.data.Request;
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16 import org.restlet.data.Response;
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17 import org.restlet.data.Status;
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18 import org.restlet.data.MediaType;
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19
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20 import org.apache.log4j.Logger;
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22 import org.w3c.dom.Document;
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24 import java.io.IOException;
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26 import de.intevation.artifactdatabase.XMLUtils;
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27
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28 /**
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29 * @author Sascha L. Teichmann (sascha.teichmann@intevation)
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30 */
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31 public class ArtifactResource
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32 extends BaseResource
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33 {
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34 private static Logger logger = Logger.getLogger(ArtifactResource.class);
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36 public static final String XPATH_ACTION = "/action/type/@name";
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37
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38 public static final String PATH = "/artifact/{uuid}";
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40 public static final String NO_ACTION_MESSAGE = "no action given";
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41 public static final String NO_SUCH_ACTION_MESSAGE = "no such action";
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42
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43 public static final String NO_ARTIFACT_FOUND = "Artifact not found";
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45 public static final String ADVANCE = "advance";
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46 public static final String FEED = "feed";
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47
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48 protected Representation innerGet()
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49 throws ResourceException
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50 {
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51 Request request = getRequest();
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53 String identifier = (String)request.getAttributes().get("uuid");
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54
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55 if (logger.isDebugEnabled()) {
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56 logger.debug("looking for artifact id '" + identifier + "'");
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57 }
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58
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59 ArtifactDatabase db = (ArtifactDatabase)getContext()
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60 .getAttributes().get("database");
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61
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62 try {
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63 return new DomRepresentation(
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64 MediaType.APPLICATION_XML,
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65 db.describe(identifier, getCallMeta()));
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66 }
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67 catch (ArtifactDatabaseException adbe) {
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68 logger.warn(adbe.getLocalizedMessage(), adbe);
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69 Response response = getResponse();
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70 response.setStatus(
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71 Status.CLIENT_ERROR_NOT_FOUND, adbe.getMessage());
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72 return new EmptyRepresentation();
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73 }
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74 }
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75
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76 protected Representation dispatch(
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77 String identifier,
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78 String action,
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79 Document source,
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80 ArtifactDatabase db
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81 ) {
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82 Document out = null;
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83
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84 try {
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85 if (action.equals(FEED)) {
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86 out = db.feed(identifier, source, getCallMeta());
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87 }
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88 else if (action.equals(ADVANCE)) {
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89 out = db.advance(identifier, source, getCallMeta());
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90 }
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91 else {
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92 throw new ArtifactDatabaseException(NO_SUCH_ACTION_MESSAGE);
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93 }
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94 }
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95 catch (ArtifactDatabaseException adbe) {
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96 logger.warn(adbe.getLocalizedMessage(), adbe);
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97 Response response = getResponse();
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98 response.setStatus(
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99 Status.CLIENT_ERROR_BAD_REQUEST, adbe.getMessage());
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100 return new EmptyRepresentation();
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101 }
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102
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103 return new DomRepresentation(MediaType.APPLICATION_XML, out);
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104 }
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105
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106 protected Representation innerPost(Representation requestRepr) {
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107
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108 Document inputDocument = null;
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109 try {
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110 DomRepresentation input = new DomRepresentation(requestRepr);
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111 inputDocument = input.getDocument();
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112 }
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113 catch (IOException ioe) {
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114 logger.error(ioe.getMessage());
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115 Response response = getResponse();
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116 response.setStatus(Status.CLIENT_ERROR_BAD_REQUEST, ioe);
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117 return new EmptyRepresentation();
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118 }
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119
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120 String action = XMLUtils.xpathString(
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121 inputDocument,
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122 XPATH_ACTION,
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123 ArtifactNamespaceContext.INSTANCE);
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124
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125 if (action == null || action.length() == 0) {
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126 Response response = getResponse();
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127 response.setStatus(
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128 Status.CLIENT_ERROR_BAD_REQUEST, NO_ACTION_MESSAGE);
28
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129 return new EmptyRepresentation();
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130 }
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131
40
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132 Request request = getRequest();
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133
28
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134 String identifier = (String)request.getAttributes().get("uuid");
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135
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136 ArtifactDatabase db = (ArtifactDatabase)getContext()
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137 .getAttributes().get("database");
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138
32
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139 return dispatch(identifier, action, inputDocument, db);
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140 }
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141 }
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142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8:
http://dive4elements.wald.intevation.org