[22739] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * oaiconfig.cpp --
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| 4 | *
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| 5 | * Copyright (C) 2004-2010 The New Zealand Digital Library Project
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| 6 | *
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| 7 | * A component of the Greenstone digital library software
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| 8 | * from the New Zealand Digital Library Project at the
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| 9 | * University of Waikato, New Zealand.
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| 10 | *
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| 11 | * This program is free software; you can redistribute it and/or modify
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| 12 | * it under the terms of the GNU General Public License as published by
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| 13 | * the Free Software Foundation; either version 2 of the License, or
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| 14 | * (at your option) any later version.
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| 15 | *
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| 16 | * This program is distributed in the hope that it will be useful,
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| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | * GNU General Public License for more details.
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| 20 | *
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| 21 | * You should have received a copy of the GNU General Public License
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| 22 | * along with this program; if not, write to the Free Software
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| 23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 24 | *
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| 25 | *********************************************************************/
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| 26 |
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[8182] | 27 | #include "oaiconfig.h"
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| 28 | #include <iostream>
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[20827] | 29 | #include <stdlib.h>
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[8182] | 30 | #include "fileutil.h"
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| 31 |
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| 32 | /**
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[18885] | 33 | * The mapping works as follows in the oai.cfg or collect.cfg file.
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[8182] | 34 | *
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| 35 | * A line is in the format oaimapping <collection field> <oai field>
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| 36 | *
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| 37 | * The map here is used to look up the "Greenstone" name which is mapped from
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| 38 | * a given OAI field name, the reverse direction to that given in the
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| 39 | * Greenstone collect.cfg file. The oairecordaction class instance which
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| 40 | * produces output for an OAI record information request thus uses the map
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| 41 | * to work from the field in the collection it has on hand which OAI
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| 42 | * record name it should use instead.
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| 43 | *
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| 44 | * An extension is to be used for this in which the OAI field name in the
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| 45 | * collect.cfg file can be made specific for a particular record format.
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| 46 | * This is done using the OAI field name in the format of
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[18885] | 47 | * <OAI format>.<OAI field name>
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| 48 | * Thus, an rfc1807 Title field would be referred to as rfc1807.Title
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[8182] | 49 | *
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[18885] | 50 | * A collection-level mapping can be provided in oai.cfg by prepending
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| 51 | * collname to collection field:
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| 52 | * <collname:field> <oai field>
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| 53 |
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[8182] | 54 | * In the absence of a particular format name, the mapping is taken to be
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| 55 | * universal.
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| 56 | */
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| 57 |
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| 58 | oaiconfig::oaiconfig() : configurable () {
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[11732] | 59 | this->resumptionSize = -1; // Default = do not use resumption tokens
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[8182] | 60 | }
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| 61 |
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| 62 | oaiconfig::oaiconfig(text_t &gsdlhome, text_t &gsdlcollect)
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| 63 | {
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[18885] | 64 | // read main configuration file (oai.cfg) to get oai collections
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[8311] | 65 | text_t mainconfig = filename_cat(gsdlhome, "etc", "oai.cfg");
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[8182] | 66 | this->collection = "";
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[11732] | 67 | this->resumptionSize = -1;
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[8182] | 68 | this->read_configfile(mainconfig);
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[11732] | 69 |
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[8182] | 70 | // then if we've not got a specified collection in the gsdlcollect
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| 71 | // parameter, read in all the collection's individual configurations
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| 72 | if (gsdlcollect == "") {
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[18903] | 73 | text_tarray::iterator start = this->collectList.begin();
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| 74 | text_tarray::iterator here = this->collectList.end()-1;
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| 75 | while (here != start) {
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| 76 | if (!this->configureCollection(gsdlhome, *here)) {
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| 77 | this->collectList.erase(here);
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| 78 | }
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| 79 | --here;
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[8182] | 80 | }
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[18903] | 81 | // and do the first one
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| 82 | if (!this->configureCollection(gsdlhome, *here)) {
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| 83 | this->collectList.erase(here);
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[24114] | 84 | }
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[8182] | 85 | }
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| 86 | else {
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[18903] | 87 | // what do we do if this fails?
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[8182] | 88 | this->configureCollection(gsdlhome, gsdlcollect);
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| 89 | }
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| 90 | }
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| 91 |
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| 92 | oaiconfig::~oaiconfig()
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| 93 | {
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| 94 | oaicollectmap::iterator here = this->collectMap.begin();
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| 95 | oaicollectmap::iterator end = this->collectMap.end();
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| 96 | while (here != end) {
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| 97 | delete here->second;
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[9608] | 98 | ++here;
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[8182] | 99 | }
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| 100 | }
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| 101 |
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[11732] | 102 | int oaiconfig::resumeAfter()
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| 103 | { return this->resumptionSize;
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| 104 | }
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| 105 |
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[8182] | 106 | int oaiconfig::getOAIVersion()
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| 107 | {
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| 108 | if (this->oaiVersion == "1.1") {
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| 109 | return 110;
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| 110 | }
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| 111 | return 200;
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| 112 | }
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| 113 |
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[27534] | 114 | bool oaiconfig::isValidCollection(const text_t &collection)
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| 115 | {
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| 116 | for (int c = 0; c < this->collectList.size(); c++)
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| 117 | if (this->collectList[c] == collection) {
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| 118 | return true;
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| 119 | }
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| 120 | return false;
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| 121 | }
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| 122 |
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[18903] | 123 | bool oaiconfig::configureCollection(const text_t &gsdlhome, const text_t &gsdlcollect)
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[8182] | 124 | {
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| 125 | text_t cnfgfile = filename_cat(gsdlhome, "collect", gsdlcollect, "etc", "collect.cfg");
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[18903] | 126 | if (!file_exists(cnfgfile)) {
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| 127 | return false;
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[24114] | 128 | }
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| 129 |
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[8182] | 130 | this->collection = gsdlcollect;
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| 131 | this->read_configfile(cnfgfile);
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[24114] | 132 |
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| 133 | // to work out the earliestDatestamp for the repository, need to
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| 134 | // to read in the build.cfg file of each OAI collection, in order to
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| 135 | // find the oldest earliestDatestamp field of all the OAI collections
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| 136 | text_t buildcnfgfile = filename_cat(gsdlhome, "collect", gsdlcollect, "index", "build.cfg");
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| 137 | if (file_exists(buildcnfgfile)) {
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| 138 | this->read_configfile(buildcnfgfile);
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| 139 | }
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| 140 |
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[18903] | 141 | return true;
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[8182] | 142 | }
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| 143 | void oaiconfig::configure (const text_t &key, const text_tarray &cfgline)
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| 144 | {
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| 145 | // we've got an oai mapping item, and at least two fields
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| 146 | if (key == "oaimapping" && cfgline.size() > 1) {
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| 147 | text_t::const_iterator colonAt;
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[8303] | 148 | text_t index, name, configCollection;
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| 149 |
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| 150 | // Take a default collection as being whatever the collection being configured is...
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| 151 | configCollection = this->collection;
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[8182] | 152 |
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| 153 | // get the name of the (collection) field to map; this may actually
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| 154 | // be in a colon separated format of the type
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| 155 | // <collection name>:<field name>
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| 156 | index = cfgline[0];
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[20607] | 157 | if ((colonAt = findchar(index.begin(), index.end(), ':')) != index.end()) {
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[8303] | 158 | configCollection = substr(index.begin(), colonAt);
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| 159 |
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| 160 | if (this->collection != "" && configCollection != this->collection) {
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| 161 | cerr << "Attempt to configure OAI mappings for " << configCollection << " in " << this->collection << endl;
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| 162 | }
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| 163 |
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| 164 | colonAt += 1;
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| 165 | index = substr(colonAt, index.end());
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| 166 | }
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[8182] | 167 |
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| 168 | // the second parameter is the metadata field to map the collection
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| 169 | // field onto. It may be provided with a metadata protocol (which
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[8276] | 170 | // will be given first and separated by a period or full stop). In
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| 171 | // the case of format.field name, the splitting is done here.
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[20607] | 172 | if ((colonAt = findchar(cfgline[1].begin(), cfgline[1].end(), '.')) != cfgline[1].end()) {
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[8182] | 173 | text_t stub = substr(cfgline[1].begin(), colonAt);
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| 174 | colonAt += 1;
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| 175 | name = substr(colonAt, cfgline[1].end());
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| 176 | index.append(":");
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| 177 | index.append(stub);
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| 178 | }
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| 179 | else {
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| 180 | name = cfgline[1];
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| 181 | }
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| 182 |
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[8303] | 183 | // now 'index' is in the form <collectionfield>:(formatname)
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| 184 | // 'name' is simply the fieldname within the format
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| 185 | // 'configCollection' is the collection to be configured
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[8182] | 186 |
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| 187 | // now simply map the field name (index) onto the collection name (name)
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[8303] | 188 | if (this->collectMap[configCollection] == NULL) {
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| 189 | this->collectMap[configCollection] = new oaicollectconfig(configCollection);
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[8182] | 190 | }
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[8303] | 191 | this->collectMap[configCollection]->fieldMap[index] = name;
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[8182] | 192 |
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[8303] | 193 | // cerr << "Mapping " << index << " to " << name << " in " << configCollection << endl;
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[8182] | 194 |
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| 195 | // TODO: check that the mapped field is actually in use
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| 196 | }
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[8303] | 197 | else if (key == "oaicollection" && cfgline.size() >= 1) {
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[8182] | 198 | // Configure a collection to be used as part of the OAI archive.
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| 199 | // This line should read:
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| 200 | //
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| 201 | // oaicollection <collectionname>
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| 202 | //
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| 203 | // Where <collectionname> is the name of the directory inside the
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| 204 | // gsdl/collect folder which contains the collection.
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| 205 | //
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| 206 | // To configure several collections, merely repeat this line,
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| 207 | // or alternatively use additional collection names after the
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| 208 | // first one.
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| 209 | //
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[18892] | 210 | // This configuration should only appear in oai.cfg
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[8182] | 211 | //
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| 212 | if (this->collection != "") {
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[18892] | 213 | cerr << "Attempt to configure an oai collection outside of oai.cfg" << endl;
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[8182] | 214 | cerr << "Configuration attempted in " << this->collection << " collection." << endl;
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| 215 | exit(1);
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| 216 | }
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[9608] | 217 | for (int c = 0; c < cfgline.size(); ++c) {
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[8303] | 218 | this->collectList.push_back(cfgline[c]);
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[27534] | 219 | addToAllCollectionsList(cfgline[c]);
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[8182] | 220 | }
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| 221 | }
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[27528] | 222 | else if (key == "oaisupercollection" && cfgline.size() > 1) {
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| 223 |
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[27534] | 224 | // Configure a super collection set
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[27528] | 225 | // The line should read
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| 226 | //
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| 227 | // oaisupercollection <setName> [collections part of this set]
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| 228 | //
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| 229 | // Records in specified collections will be advertised as being part
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| 230 | // of the SetName set as well as their collectionName set
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| 231 | //
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| 232 | // This configuration should only appear in oai.cfg
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| 233 | //
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| 234 | if (this->collection != "") {
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| 235 | cerr << "Attempt to configure an oai super collection outside of oai.cfg" << endl;
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| 236 | cerr << "Configuration attempted in " << this->collection << " collection." << endl;
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| 237 | exit(1);
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| 238 | }
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| 239 |
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| 240 | text_t super_set = cfgline[0];
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| 241 | this->superCollectList.push_back(super_set);
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| 242 | this->superCollectMap[super_set] = new oaisupercollectconfig(super_set);
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| 243 | for (int c = 1; c < cfgline.size(); ++c) {
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| 244 | text_t sub_coll = cfgline[c];
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| 245 | // Add the collection into the list for this supercoll
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| 246 | this->superCollectMap[super_set]->collectionList.push_back(sub_coll);
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| 247 | // Add the super coll into the list for the collection
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| 248 | if (this->collectMap[sub_coll]== NULL) {
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| 249 | this->collectMap[sub_coll] = new oaicollectconfig(sub_coll);
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| 250 | }
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| 251 | this->collectMap[sub_coll]->superCollectList.push_back(super_set);
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[27534] | 252 | addToAllCollectionsList(sub_coll);
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[27528] | 253 | }
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| 254 | }
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[18892] | 255 | else if (key == "oaimetadata" && cfgline.size() >= 1) {
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| 256 | // List of metadata prefixes to suuport
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| 257 | // This line should read:
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| 258 | //
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| 259 | // oaicollection <metadataname> <metadataname>...
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| 260 | //
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| 261 | //
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| 262 | // This configuration should only appear in oai.cfg
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| 263 | //
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| 264 | if (this->collection != "") {
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| 265 | cerr << "Attempt to configure oai metadata outside of oai.cfg" << endl;
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| 266 | cerr << "Configuration attempted in " << this->collection << " collection." << endl;
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| 267 | exit(1);
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| 268 | }
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| 269 | for (int c = 0; c < cfgline.size(); ++c) {
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| 270 | // todo: check that the set name is valid
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| 271 | this->metadataSet.insert(cfgline[c]);
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| 272 | }
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| 273 | }
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[8182] | 274 | else if (key == "oaiinfo" && cfgline.size() >= 1) {
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| 275 | // Get a piece of information for the oai repository information
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| 276 | // request. The line should read:
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| 277 | //
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| 278 | // oaiinfo <information field name> <value>
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| 279 | //
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[18892] | 280 | // This configuration should only be attempted in oai.cfg
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[8182] | 281 | //
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| 282 | if (this->collection != "") {
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[18892] | 283 | cerr << "Attempt to set oai information outside of oai.cfg" << endl;
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[8182] | 284 | cerr << "Configuration attempted in " << this->collection << " collection." << endl;
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| 285 | exit(1);
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| 286 | }
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| 287 |
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| 288 | // if no second parameter is given, then the first parameter
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| 289 | if (cfgline.size() == 1) {
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| 290 | this->infoMap[cfgline[0]] = cfgline[0];
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| 291 | }
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| 292 | else {
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| 293 | this->infoMap[cfgline[0]] = cfgline[1];
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| 294 | }
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| 295 | }
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[22212] | 296 | else if ( key == "oaisetname" || key == "oaisetdescription") {
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| 297 | text_t coll_name;
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| 298 | text_t value = "";
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| 299 | if (this->collection != "") {
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| 300 | // we are in collect.cfg
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| 301 | coll_name = this->collection;
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| 302 | if (cfgline.size() == 1) {
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| 303 | // just the collection value
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| 304 | value = cfgline[0];
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[8182] | 305 | }
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[22212] | 306 | else if (cfgline.size() == 2) {
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| 307 | // we have a subset name (eg for classifier)
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| 308 | coll_name.append(":");
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| 309 | coll_name.append(cfgline[0]);
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| 310 | value = cfgline[1];
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[8182] | 311 | }
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[22212] | 312 | } else if (cfgline.size() == 2) {
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| 313 | // oai.cfg, line should be collname, setName
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| 314 | coll_name = cfgline[0];
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| 315 | value = cfgline[1];
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[8182] | 316 | }
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[22212] | 317 | if (value != "") {
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[27528] | 318 | // check first for super collection
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| 319 | if (this->superCollectMap[coll_name] != NULL) {
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| 320 | if (key == "oaisetname") {
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| 321 | this->superCollectMap[coll_name]->setName = value;
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| 322 | } else if (key == "oaisetdescription") {
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| 323 | this->superCollectMap[coll_name]->setDescription = value;
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| 324 | }
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| 325 | } else {
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| 326 | if (this->collectMap[coll_name] == NULL) {
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| 327 | this->collectMap[coll_name] = new oaicollectconfig(coll_name);
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| 328 | }
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| 329 | if (key == "oaisetname") {
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| 330 | this->collectMap[coll_name]->setName = value;
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| 331 | } else if (key == "oaisetdescription") {
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| 332 | this->collectMap[coll_name]->setDescription = value;
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| 333 | }
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[8182] | 334 | }
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| 335 | }
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| 336 | }
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[22212] | 337 |
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| 338 | else if (key == "resumeafter" && cfgline.size() >= 1) {
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| 339 | this->resumptionSize = cfgline[0].getint();
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[14284] | 340 | }
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[8182] | 341 |
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[22212] | 342 | else if (key == "maintainer") {
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| 343 | this->maintainer = cfgline[0];
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[8182] | 344 | }
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[22212] | 345 | else if (key == "repositoryName") {
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| 346 | this->repositoryName = cfgline[0];
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[8182] | 347 | }
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[22284] | 348 | else if (key == "repositoryId") {
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| 349 | this->repositoryId = cfgline[0];
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| 350 | }
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| 351 | else if (key == "repositoryIdVersion") {
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| 352 | this->repositoryIdVersion = cfgline[0];
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| 353 | }
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[23233] | 354 | else if (key == "baseServerURL") {
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| 355 | this->baseServerURL = cfgline[0];
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[8182] | 356 | }
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[23233] | 357 | else if (key == "oaiserverPath") {
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| 358 | this->oaiserverPath = cfgline[0];
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[14284] | 359 | }
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[23233] | 360 | else if (key == "libraryPath") {
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| 361 | this->libraryPath = cfgline[0];
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| 362 | }
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| 363 | else if (key == "docRootPath") {
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| 364 | this->docRootPath = cfgline[0];
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| 365 | }
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| 366 |
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[22284] | 367 | else if (key == "oaiversion") {
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| 368 | this->oaiVersion = cfgline[0];
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| 369 | }
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[22212] | 370 | }
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[27534] | 371 |
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| 372 | void oaiconfig::addToAllCollectionsList(const text_t coll_name) {
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[14284] | 373 |
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[27534] | 374 | for (int c=0; c<this->allCollectList.size(); c++) {
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| 375 | if (allCollectList[c] == coll_name) return;
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| 376 | }
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| 377 | this->allCollectList.push_back(coll_name);
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| 378 |
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| 379 | }
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[24114] | 380 |
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[23233] | 381 | text_t oaiconfig::generateBaseServerURL() {
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| 382 | char *server_name = getenv("SERVER_NAME");
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| 383 | char *server_port = getenv("SERVER_PORT");
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| 384 | text_t url = "http://";
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| 385 | url.append(server_name);
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| 386 | url.append(":");
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| 387 | url.append(server_port);
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| 388 | return url;
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| 389 | }
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| 390 |
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[8182] | 391 | text_t oaiconfig::getMapping(const text_t &collection, const text_t &collectfield)
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| 392 | {
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| 393 | if (this->collectMap[collection] == NULL) {
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| 394 | return "";
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| 395 | }
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| 396 | return this->collectMap[collection]->fieldMap[collectfield];
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| 397 | }
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| 398 |
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| 399 | /**
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| 400 | * Get the mapping for a field in a given collection; if no mapping
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| 401 | * exists, the result will be a blank string.
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| 402 | */
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| 403 | text_t oaiconfig::getMapping(const text_t &collection, const text_t &collectfield, const text_t &formatname)
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| 404 | {
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| 405 | text_t fullName = collectfield;
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| 406 | fullName.append(":");
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| 407 | fullName.append(formatname);
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| 408 |
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| 409 | // try the collection-specific options first
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| 410 | if (this->collectMap[collection] != NULL) {
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| 411 | // first try the most specific item - this collection, and given that protocol
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| 412 | if (this->collectMap[collection]->fieldMap.count(fullName) >= 1) {
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| 413 | return this->collectMap[collection]->fieldMap[fullName];
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| 414 | }
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| 415 | // otherwise, fall back to this collection, and all protocols
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| 416 | else if (this->collectMap[collection]->fieldMap.count(collectfield) >= 1) {
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| 417 | return this->collectMap[collection]->fieldMap[collectfield];
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| 418 | }
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| 419 | }
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| 420 |
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| 421 | // if no mappings exist, return an empty item
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| 422 | if (this->collectMap[""] == NULL) {
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| 423 | return "";
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| 424 | }
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| 425 |
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| 426 | // then try generic rules
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| 427 | if (this->collectMap[""]->fieldMap.count(fullName) >= 1) {
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| 428 | return this->collectMap[""]->fieldMap[fullName];
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| 429 | }
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| 430 | else {
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| 431 | return this->collectMap[""]->fieldMap[collectfield];
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| 432 | }
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| 433 | }
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[20629] | 434 |
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[22212] | 435 | text_t oaiconfig::getBaseURL()
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| 436 | {
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[23233] | 437 | if (this->baseServerURL.empty()) {
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| 438 | this->baseServerURL = generateBaseServerURL();
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| 439 | }
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| 440 | return this->baseServerURL + this->oaiserverPath;
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[22212] | 441 | }
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| 442 | text_t oaiconfig::getBaseLibraryURL()
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| 443 | {
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[23233] | 444 | if (this->baseServerURL.empty()) {
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| 445 | this->baseServerURL = generateBaseServerURL();
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| 446 | }
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| 447 | return this->baseServerURL + this->libraryPath;
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[22212] | 448 | }
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| 449 | text_t oaiconfig::getBaseDocRoot()
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| 450 | {
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[23233] | 451 | if (this->baseServerURL.empty()) {
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| 452 | this->baseServerURL = generateBaseServerURL();
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| 453 | }
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| 454 | return this->baseServerURL + this->docRootPath;
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[22212] | 455 | }
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[23233] | 456 |
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| 457 | text_t oaiconfig::getRelativeBaseDocRoot()
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| 458 | {
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| 459 | return this->docRootPath;
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| 460 | }
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[22212] | 461 | text_t oaiconfig::getRepositoryName()
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| 462 | {
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| 463 | return this->repositoryName;
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| 464 | }
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[22284] | 465 | text_t oaiconfig::getRepositoryId()
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| 466 | {
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| 467 | return this->repositoryId;
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| 468 | }
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| 469 | text_t oaiconfig::getRepositoryIdVersion()
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| 470 | {
|
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| 471 | return this->repositoryIdVersion;
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| 472 | }
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[22212] | 473 | text_t oaiconfig::getMaintainer()
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| 474 | {
|
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| 475 | return this->maintainer;
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| 476 | }
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[20629] | 477 | text_t oaiconfig::getSetName(const text_t &setSpec)
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| 478 | {
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[27528] | 479 | if (this->collectMap[setSpec] != NULL) {
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[27673] | 480 | return this->collectMap[setSpec]->setName;
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[20629] | 481 | }
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[27528] | 482 | if (this->superCollectMap[setSpec] != NULL) {
|
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| 483 | return this->superCollectMap[setSpec]->setName;
|
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| 484 | }
|
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| 485 | return "" ;
|
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[22212] | 486 |
|
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[20629] | 487 | }
|
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| 488 |
|
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| 489 | text_t oaiconfig::getSetDescription(const text_t &setSpec)
|
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| 490 | {
|
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[27528] | 491 | if (this->collectMap[setSpec] != NULL) {
|
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| 492 | return this->collectMap[setSpec]->setDescription;
|
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[20629] | 493 | }
|
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[27528] | 494 | if (this->superCollectMap[setSpec] != NULL) {
|
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| 495 | return this->superCollectMap[setSpec]->setDescription;
|
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| 496 | }
|
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[22212] | 497 |
|
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[27528] | 498 | return "" ;
|
---|
| 499 |
|
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[22212] | 500 | }
|
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[20629] | 501 |
|
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[27528] | 502 |
|
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[27534] | 503 | text_tarray oaiconfig::getSuperCollectionsForThisCollection(const text_t &collection)
|
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| 504 | {
|
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| 505 |
|
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[27528] | 506 | text_tarray super_colls;
|
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| 507 | if (this->superCollectList.size() == 0) {
|
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| 508 | return super_colls;
|
---|
| 509 | }
|
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| 510 |
|
---|
| 511 | for (int s = 0; s < this->superCollectList.size(); s++) {
|
---|
| 512 | text_tarray colls = this->superCollectMap[this->superCollectList[s]]->collectionList;
|
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| 513 | for (int c = 0; c < colls.size(); c++)
|
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| 514 | {
|
---|
| 515 | if (colls[c] == collection)
|
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| 516 | {
|
---|
| 517 | super_colls.push_back(this->superCollectList[s]);
|
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| 518 | break;
|
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| 519 | }
|
---|
| 520 | }
|
---|
| 521 | }
|
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| 522 |
|
---|
| 523 | return super_colls;
|
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| 524 | }
|
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