Mercurial > lada > lada-server

annotate src/main/java/de/intevation/lada/rest/LStatusService.java @ 263:2098db2e8fbd M1

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Code documentation.
author Raimund Renkert <rrenkert@intevation.de>
date Wed, 17 Jul 2013 09:40:53 +0200
parents 07c4186cbfab
children 567ce7697fc7
rev   line source
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1 package de.intevation.lada.rest;
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2
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3 import java.util.ArrayList;
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4 import java.util.List;
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5
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6 import javax.enterprise.context.RequestScoped;
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7 import javax.inject.Inject;
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8 import javax.inject.Named;
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9 import javax.ws.rs.Consumes;
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10 import javax.ws.rs.DELETE;
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11 import javax.ws.rs.GET;
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12 import javax.ws.rs.POST;
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13 import javax.ws.rs.PUT;
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14 import javax.ws.rs.Path;
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15 import javax.ws.rs.PathParam;
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16 import javax.ws.rs.Produces;
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17 import javax.ws.rs.core.Context;
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18 import javax.ws.rs.core.HttpHeaders;
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19 import javax.ws.rs.core.MultivaluedMap;
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20 import javax.ws.rs.core.UriInfo;
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21
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22 import de.intevation.lada.auth.Authentication;
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23 import de.intevation.lada.auth.AuthenticationException;
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24 import de.intevation.lada.data.QueryBuilder;
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25 import de.intevation.lada.data.Repository;
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26 import de.intevation.lada.model.LStatus;
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27 import de.intevation.lada.model.LStatusId;
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28
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29 /**
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30 * This class produces a RESTful service to read, write and update
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31 * LStatus objects.
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32 *
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33 * @author <a href="mailto:rrenkert@intevation.de">Raimund Renkert</a>
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34 */
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35 @Path("/status")
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36 @RequestScoped
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37 public class LStatusService
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38 {
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39 /**
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40 * The Repository for LStatus.
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41 */
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42 @Inject
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43 @Named("lstatusrepository")
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44 private Repository repository;
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45
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46 /**
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47 * The authorization module.
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48 */
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49 @Inject
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50 @Named("ldapauth")
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51 private Authentication authentication;
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52
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53 /**
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54 * Request LStatus via a filter.
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55 *
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56 * Query parameters are used for the filter in form of key-value pairs.
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57 *
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58 * @param info The URL query parameters.
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59 * @param header The HTTP header containing authorization information.
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60 * @return Response object.
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61 */
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62 @GET
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63 @Produces("text/json")
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64 public Response filter(
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65 @Context UriInfo info,
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66 @Context HttpHeaders headers
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67 ) {
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68 try {
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69 if (!authentication.isAuthorizedUser(headers)) {
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70 return new Response(false, 699, new ArrayList<LStatus>());
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71 }
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72 MultivaluedMap<String, String> params = info.getQueryParameters();
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73 if (params.isEmpty() ||
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74 !params.containsKey("probeId") ||
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75 !params.containsKey("messungsId")) {
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76 return new Response(false, 609, new ArrayList<LStatus>());
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77 }
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78 String probeId = params.getFirst("probeId");
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79 QueryBuilder<LStatus> builder =
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80 new QueryBuilder<LStatus>(
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81 repository.getEntityManager(), LStatus.class);
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82 builder.and("probeId", probeId)
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83 .and("messungsId", params.getFirst("messungsId"));
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84 return repository.filter(builder.getQuery());
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85 }
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86 catch(AuthenticationException ae) {
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87 return new Response(false, 699, new ArrayList<LStatus>());
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88 }
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89 }
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90
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91 /**
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92 * Update a LStatus object.
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93 *
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94 * @param status The LStatus object to update.
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95 * @param headers The HTTP header containing authorization information.
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96 * @return Response object.
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97 */
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98 @PUT
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99 @Produces("text/json")
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100 @Consumes("application/json")
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101 public Response update(
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102 LStatus status,
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103 @Context HttpHeaders headers
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104 ) {
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105 try {
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106 String probeId = status.getProbeId();
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107 if (authentication.hasAccess(headers, probeId)) {
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108 return repository.update(status);
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109 }
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110 return new Response(false, 698, new ArrayList<LStatus>());
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111 }
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112 catch(AuthenticationException ae) {
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113 return new Response(false, 699, new ArrayList<LStatus>());
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114 }
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115 }
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116
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117 /**
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118 * Create a new LStatus object.
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119 *
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120 * @param status The new LStatus object.
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121 * @param headers The HTTP header containing authorization information.
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122 * @return Response object.
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123 */
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124 @POST
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125 @Produces("text/json")
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126 @Consumes("application/json")
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127 public Response create(
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128 LStatus status,
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129 @Context HttpHeaders headers
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130 ) {
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131 try {
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132 String probeId = status.getProbeId();
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133 if (authentication.hasAccess(headers, probeId)) {
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134 LStatusId id = new LStatusId();
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135 id.setMessungsId(status.getMessungsId());
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136 id.setProbeId(probeId);
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137 status.setId(id);
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138 return repository.create(status);
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139 }
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140 return new Response(false, 698, new ArrayList<LStatus>());
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141 }
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142 catch(AuthenticationException ae) {
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143 return new Response(false, 699, new ArrayList<LStatus>());
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144 }
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145 }
249
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146
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147 /**
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148 * Delete a LStatus object.
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149 *
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150 * @param statusId The object id.
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151 * @param messungsId The LProbe id.
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152 * @param statusId The LStatus id
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153 * @param headers The HTTP header containing authorization information.
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154 * @return Response object.
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155 */
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156 @DELETE
258
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157 @Produces("text/json")
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158 @Path("/{statusId}/{messungsId}/{probeId}")
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159 public Response delete(
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160 @PathParam("statusId") String statusId,
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161 @PathParam("messungsId") String messungsId,
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162 @PathParam("probeId") String probeId,
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163 @Context HttpHeaders headers
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164 ) {
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165 try {
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166 if (authentication.hasAccess(headers, probeId)) {
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167 QueryBuilder<LStatus> builder =
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168 new QueryBuilder<LStatus>(
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169 repository.getEntityManager(),
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170 LStatus.class);
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171 builder.and("SId", statusId)
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172 .and("messungsId", messungsId)
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173 .and("probeId", probeId);
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174 Response response = repository.filter(builder.getQuery());
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175 List<LStatus> list = (List<LStatus>)response.getData();
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176 if (!list.isEmpty()) {
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177 repository.delete(list.get(0));
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178 return new Response(true, 200, null);
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179 }
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180 return new Response(false, 600, null);
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181 }
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182 return new Response(false, 698, new ArrayList<LStatus>());
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183 }
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184 catch(AuthenticationException ae) {
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185 return new Response(false, 699, new ArrayList<LStatus>());
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186 }
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187 }
156
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188 }
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