Mercurial > dive4elements > framework

annotate artifact-database/src/main/java/org/dive4elements/artifactdatabase/rest/BaseOutResource.java @ 570:584591f8203c 3.2.x

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Upgrade to Log4j 2
author Tom Gottfried <tom@intevation.de>
date Mon, 28 Feb 2022 17:41:14 +0100
parents 415df0fc4fa1
children
rev   line source
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1 /*
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2 * Copyright (c) 2011 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 package org.dive4elements.artifactdatabase.rest;
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9
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10 import org.dive4elements.artifacts.common.utils.XMLUtils;
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11
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12 import org.dive4elements.artifacts.ArtifactDatabase;
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13 import org.dive4elements.artifacts.ArtifactDatabaseException;
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14 import org.dive4elements.artifacts.ArtifactNamespaceContext;
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15 import org.dive4elements.artifacts.CallMeta;
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16
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17 import java.io.IOException;
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18
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19 import org.apache.logging.log4j.Logger;
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20 import org.apache.logging.log4j.LogManager;
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21
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22 import org.restlet.Request;
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23 import org.restlet.Response;
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24
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25 import org.restlet.data.MediaType;
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26 import org.restlet.data.Status;
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27
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28 import org.restlet.ext.xml.DomRepresentation;
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29
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30 import org.restlet.representation.EmptyRepresentation;
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31 import org.restlet.representation.Representation;
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32
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33 import org.restlet.resource.ResourceException;
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34
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35 import org.w3c.dom.Document;
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36
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37
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38 /**
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39 * Base Resource to serve the out()-outputs of collections and artifacts.
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40 *
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41 * @author <a href="mailto:ingo.weinzierl@intevation">Ingo Weinzierl</a>
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42 */
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43 public abstract class BaseOutResource
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44 extends BaseResource
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45 {
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46 /** The logger used in this class.*/
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47 private static Logger logger = LogManager.getLogger(BaseOutResource.class);
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48
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49 /** XPath to figure out the MIME type of the requested result.*/
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50 public static final String XPATH_MIME_TYPE =
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51 "/art:action/art:out/art:mime-type/@value";
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52
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53 /** Default result MIME type: octet stream.*/
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54 public static final MediaType DEFAULT_MIME_TYPE =
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55 MediaType.APPLICATION_OCTET_STREAM;
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56
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57
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58 @Override
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59 protected Representation innerPost(Representation requestRepr)
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60 throws ResourceException
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61 {
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62 Document inputDocument = null;
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63
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64 try {
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65 DomRepresentation input = new DomRepresentation(requestRepr);
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66 input.setNamespaceAware(true);
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67 inputDocument = input.getDocument();
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68 }
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69 catch (IOException ioe) {
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70 logger.error(ioe.getMessage());
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71 Response response = getResponse();
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72 response.setStatus(Status.CLIENT_ERROR_BAD_REQUEST, ioe);
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73 return new EmptyRepresentation();
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74 }
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75
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76 ArtifactDatabase db = getArtifactDatabase();
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77
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78 Request request = getRequest();
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79
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80 String identifier = getIdentifier();
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81 String outType = getType();
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82
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83 if (logger.isDebugEnabled()) {
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84 logger.debug("looking for artifact id '" + identifier + "'");
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85 }
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86
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87 String mimeTypeString = XMLUtils.xpathString(
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88 inputDocument,
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89 XPATH_MIME_TYPE,
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90 ArtifactNamespaceContext.INSTANCE);
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91
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92 MediaType mimeType = DEFAULT_MIME_TYPE;
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93
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94 if (mimeTypeString != null && mimeTypeString.length() != 0) {
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95 try {
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96 mimeType = MediaType.valueOf(mimeTypeString);
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97 }
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98 catch (Exception e) {
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99 logger.error(e.getLocalizedMessage());
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100 }
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101 }
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102
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103 try {
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104 return new OutRepresentation(
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105 mimeType,
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106 doOut(identifier, outType, inputDocument, db, getCallMeta()));
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107 }
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108 catch (ArtifactDatabaseException adbe) {
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109 Response response = getResponse();
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110 response.setStatus(
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111 Status.CLIENT_ERROR_NOT_FOUND, adbe.getMessage());
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112 return new EmptyRepresentation();
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113 }
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114 }
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115
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116 /**
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117 * Returns the identifier of the artifact or collection.
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118 *
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119 * @return the identifier.
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120 */
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121 protected abstract String getIdentifier();
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122
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123
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124 /**
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125 * Returns the concrete output type of the artifact or collection.
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126 *
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127 * @return the output type.
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128 */
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129 protected abstract String getType();
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130
143
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131 /**
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132 * This method is called to process the operation on artifacts or
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133 * collections.
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134 *
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135 * @param identifier The identifier of the artifact or collection.
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136 * @param type The output type.
143
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137 * @param input The input document of the request.
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138 * @param db The artifact database.
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139 * @param meta The CallMeta object.
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140 *
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141 * @return the result of the operation.
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142 */
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143 protected abstract ArtifactDatabase.DeferredOutput doOut(
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144 String identifier,
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145 String type,
143
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146 Document input,
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147 ArtifactDatabase db,
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148 CallMeta meta)
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149 throws ArtifactDatabaseException;
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150 }
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151 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org