1 | #include "recordaction.h"
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2 | #include "recptprototools.h"
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3 | #include "dublincore.h"
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4 | #include "qualified_dublincore.h"
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5 | #include "rfc1807.h"
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6 | #include "oaitools.h"
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7 | #include <time.h>
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8 |
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9 |
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10 | recordaction::recordaction(text_tset &metadataset) : oaiaction("GetRecord") {
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11 | metaformatptr fptr;
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12 |
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13 | if (metadataset.count("oai_dc") > 0) {
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14 | fptr.set_class(new dublin_core());
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15 | this->formatMap[fptr.get_class()->formatName()] = fptr;
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16 | }
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17 |
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18 | if (metadataset.count("gsdl_qdc") > 0) {
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19 | fptr.set_class(new qualified_dublin_core());
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20 | this->formatMap[fptr.get_class()->formatName()] = fptr;
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21 | }
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22 |
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23 | if (metadataset.count("rfc1807") > 0) {
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24 |
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25 | fptr.set_class(new rfc1807());
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26 | this->formatMap[fptr.get_class()->formatName()] = fptr;
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27 | }
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28 | }
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29 |
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30 | recordaction::~recordaction() {
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31 | metaformat_map::iterator here = this->formatMap.begin();
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32 | metaformat_map::iterator end = this->formatMap.end();
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33 |
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34 | while (here != end) {
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35 | here->second.clear();
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36 | ++here;
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37 | }
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38 | }
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39 |
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40 |
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41 | bool recordaction::validateAction(recptproto *protocol, oaiargs ¶ms)
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42 | {
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43 | // ----------------------------------------------------------------------------
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44 | // 1. Check for invalid arguments
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45 | // ----------------------------------------------------------------------------
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46 | bool invalid_argument_supplied = false;
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47 | text_tmap::const_iterator param_iterator = params.begin();
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48 | while (param_iterator != params.end())
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49 | {
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50 | // Check for arguments that aren't valid for this action
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51 | if (param_iterator->first != "verb" &&
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52 | param_iterator->first != "identifier" &&
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53 | param_iterator->first != "metadataPrefix")
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54 | {
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55 | // We've found an invalid argument
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56 | invalid_argument_supplied = true;
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57 |
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58 | // Delete the invalid argument from the list so it doesn't end up in the <request> tag that is returned
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59 | params.erase(param_iterator->first);
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60 | }
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61 |
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62 | param_iterator++;
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63 | }
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64 |
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65 | // If we found an invalid argument it's an error, so don't go any further
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66 | if (invalid_argument_supplied)
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67 | {
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68 | this->errorType = "badArgument";
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69 | return false;
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70 | }
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71 |
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72 | // ----------------------------------------------------------------------------
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73 | // 2. Handle any exclusive arguments
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74 | // ----------------------------------------------------------------------------
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75 |
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76 | // None!
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77 |
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78 | // ----------------------------------------------------------------------------
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79 | // 3. Handle any required arguments
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80 | // ----------------------------------------------------------------------------
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81 |
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82 | // The "metadataPrefix" argument is required
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83 | text_t metadataPrefix = params["metadataPrefix"];
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84 |
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85 | // Check that the metadataPrefix argument exists
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86 | if (metadataPrefix == "")
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87 | {
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88 | this->errorType = "badArgument";
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89 | return false;
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90 | }
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91 |
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92 | // Check that the metadataPrefix is a format we support
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93 | if (this->formatNotSupported(metadataPrefix))
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94 | {
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95 | this->errorType = "cannotDisseminateFormat";
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96 | return false;
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97 | }
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98 |
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99 | // The "identifier" argument is required
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100 | text_t identifier = params["identifier"];
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101 |
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102 | // Check that the identifier argument exists
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103 | if (identifier == "")
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104 | {
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105 | this->errorType = "badArgument";
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106 | return false;
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107 | }
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108 |
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109 | // Extract the collection name from the identifier specification
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110 | text_t collection = "";
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111 | oaiclassifier::toGSDL(collection, identifier);
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112 |
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113 | // Check a document with the specified identifier exists
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114 | text_tset metadata;
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115 | if (!get_info(identifier, collection, "", metadata, false, protocol, this->gsdlResponse, *logout))
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116 | {
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117 | this->errorType = "idDoesNotExist";
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118 | return false;
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119 | }
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120 |
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121 | // ----------------------------------------------------------------------------
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122 | // 4. Check any remaining arguments
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123 | // ----------------------------------------------------------------------------
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124 |
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125 | // None!
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126 |
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127 | // If we've reached here everything must be fine
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128 | this->errorType = "";
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129 | return true;
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130 | }
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131 |
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132 | //
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133 | // Output the content of a GetRecord request; in this case, the static member
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134 | // output_record below is used to fulfill most of the request
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135 | //
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136 | bool recordaction::output_content(ostream &output, recptproto *protocol, oaiargs ¶ms)
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137 | {
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138 | // validateAction will already have set up the correct response content
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139 | text_t gsdlId = params["identifier"];
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140 | text_t gsdlCollect;
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141 |
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142 | // convert record identifier into GSDL format from OAI
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143 | oaiclassifier::toGSDL(gsdlCollect, gsdlId);
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144 |
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145 | // go direct to output_record
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146 | return output_record(output, gsdlCollect, gsdlId, params["metadataPrefix"]);
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147 | }
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148 |
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149 | //
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150 | // A static member that does everything the output_content method above needs,
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151 | // but can be called when individual records are being output for another
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152 | // action.
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153 | //
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154 | bool recordaction::output_record(ostream &output, recptproto *protocol, const text_t &collection, const text_t &OID, const text_t &metadataPrefix)
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155 | {
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156 | text_tset metadata;
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157 | ofstream logout("oai.log", ios::app);
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158 |
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159 | // get the document information
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160 | if (!get_info(OID, collection, "", metadata, false, protocol, this->gsdlResponse, logout)) {
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161 |
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162 | this->errorType = "idDoesNotExist";
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163 |
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164 | if(this->configuration->getOAIVersion() >= 200) {
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165 | this->output_error(output, errorType);
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166 | return false;
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167 | }
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168 | }
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169 |
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170 | return this->output_record(output, collection, OID, metadataPrefix);
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171 | }
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172 |
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173 | bool recordaction::output_record(ostream &output, const text_t &collection, const text_t &OID,
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174 | const text_t &metadataPrefix)
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175 | { int oaiVersion = this->configuration->getOAIVersion();
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176 |
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177 | // check to see if it's a classifier
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178 | text_t childHead;
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179 | text_t::const_iterator start = OID.begin();
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180 | text_t::const_iterator here = OID.begin();
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181 | here += 2;
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182 | childHead = substr(start, here);
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183 |
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184 | // if it isn't a document, kill it now
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185 | if (childHead == "CL") {
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186 | cerr << "Not a document" << endl;
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187 | return false;
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188 | }
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189 |
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190 | ResultDocInfo_t doc_info = this->gsdlResponse.docInfo[0];
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191 | text_t lastModified = "";
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192 |
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193 | // Fills lastModified with the date from the document in doc_info, in the format YYYY-MM-DD
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194 | this->getLastModifiedDate(doc_info, lastModified);
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195 |
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196 | // If the ID exists, output record for oai response (OAI v1.1)
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197 | // OAI v2.0 will already have bailed if ID doesn't exist (yes?)
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198 | if (this->errorType != "idDoesNotExist") {
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199 | text_t oaiLabel = OID;
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200 | oaiclassifier::toOAI(collection, oaiLabel); // Concatenates HASH id to collection, which OAI needs
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201 |
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202 | // output a record
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203 | output << " <record>\n";
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204 |
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205 | // output header part of oai response
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206 | this->output_record_header(output, oaiLabel, lastModified,
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207 | doc_info.metadata["memberof"].values, oaiVersion);
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208 |
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209 | if (this->errorType != "cannotDisseminateFormat"){
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210 | if (this->formatMap[metadataPrefix].get_class()->output_metadata(output, collection, doc_info)) {
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211 | // output 'about' part of oai response - we probably won't ever use this
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212 | //output << " <about>\n";
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213 | //output << " </about>\n";
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214 | }
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215 | }
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216 | // close record
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217 | output << " </record>\n\n";
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218 | }
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219 | return true;
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220 | }
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