[22739] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * oaitools.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 "oaitools.h"
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| 28 |
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[15428] | 29 | #include "recptprototools.h"
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[8182] | 30 |
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[20589] | 31 |
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[8337] | 32 | void oaiclassifier::swapColonsAndPeriods(text_t &classifier)
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| 33 | {
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[9608] | 34 | for (int i = 1; i <= classifier.size(); ++i) {
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[8337] | 35 | if (classifier[i] == '.') {
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| 36 | classifier[i] = ':';
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| 37 | }
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| 38 | else if (classifier[i] == ':') {
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| 39 | classifier[i] = '.';
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| 40 | }
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| 41 | }
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| 42 |
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| 43 | }
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| 44 |
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[8182] | 45 | text_t oaiclassifier::getGSDL_OID(const text_t &collection, const text_t& oai_id,
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| 46 | recptproto *protocol, ostream &logout)
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| 47 | {
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| 48 | FilterResponse_t response;
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| 49 | text_tset metadata;
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| 50 |
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| 51 | // metadata.insert("gsdl_id");
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| 52 |
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| 53 | bool status_ok = get_children(oai_id, collection, "", metadata, false, protocol, response, logout);
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| 54 | text_t gsdl_id = "";
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| 55 | if (status_ok) {
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| 56 | if(response.docInfo.size() > 0){
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| 57 | gsdl_id = response.docInfo[0].OID;
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| 58 | }
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[8219] | 59 | else {
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| 60 | // Response.docInfo is empty, meaning the doc in question didn't have an oai_id number.
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[8182] | 61 | return gsdl_id; // Return the empty string to indicate this.
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[8219] | 62 | }
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[8182] | 63 | }
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| 64 |
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| 65 | return gsdl_id;
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| 66 | }
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| 67 |
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| 68 | /**
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| 69 | * Called to convert GS classifier/document identifiers that use
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| 70 | * a '.' to separate levels in the hierarchy into OAI identifiers
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| 71 | * that use ':' instead.
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| 72 | */
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[22285] | 73 | void oaiclassifier::toOAI(const text_t repos_id, const text_t &collection, text_t &classifier)
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| 74 | {
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| 75 |
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| 76 | text_t tmp = "oai:";
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| 77 | tmp.append(repos_id);
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| 78 | tmp.append(":");
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| 79 | tmp.append(collection);
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| 80 | toOAI(tmp, classifier);
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| 81 |
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| 82 | }
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| 83 |
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| 84 | /**
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| 85 | * Called to convert GS classifier/document identifiers that use
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| 86 | * a '.' to separate levels in the hierarchy into OAI identifiers
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| 87 | * that use ':' instead.
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| 88 | */
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[8182] | 89 | void oaiclassifier::toOAI(const text_t &collection, text_t &classifier)
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| 90 | {
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[8337] | 91 | oaiclassifier::swapColonsAndPeriods(classifier);
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[8182] | 92 |
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| 93 | // prepend the collection identifier to the beginning of the
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| 94 | // OAI identifier.
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| 95 | text_t tmp = collection;
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| 96 | tmp.append(":");
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| 97 | tmp.append(classifier);
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| 98 |
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| 99 | classifier = tmp;
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| 100 | }
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| 101 |
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[22285] | 102 | void oaiclassifier::getCollectionFromOAIID(const text_t oai_id, text_t &collection_id) {
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| 103 |
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| 104 | // id is like oai:repos-id:collection:OID, we just want the collection bit
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| 105 |
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| 106 | text_t::const_iterator begin = oai_id.begin();
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| 107 | text_t::const_iterator end = oai_id.end();
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| 108 | text_t::const_iterator colon = findchar(begin, end, ':'); // 1
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| 109 | if (colon != end) {
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| 110 | colon = findchar(colon+1, end, ':'); // 2
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| 111 | }
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| 112 | text_t::const_iterator third_colon;
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| 113 | if (colon !=end) {
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| 114 | third_colon = findchar(colon+1, end, ':');
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| 115 | }
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| 116 | if (third_colon != end) {
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| 117 | collection_id = substr(colon+1, third_colon);
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| 118 | }
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| 119 | }
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| 120 |
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[8182] | 121 | /**
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| 122 | * Called to convert OAI classifier/document identifiers that use
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| 123 | * a ':' to separate levels in the hierarchy into GS identifiers
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| 124 | * that use '.' instead.
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| 125 | */
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| 126 | void oaiclassifier::toGSDL(text_t &collection, text_t &classifier)
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| 127 | {
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[8337] | 128 | oaiclassifier::swapColonsAndPeriods(classifier);
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[8182] | 129 |
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| 130 | // separate out the collection identifier that should be
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| 131 | // found at the beginning of the OAI identifier from the
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| 132 | // item identifier within the collection
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| 133 | text_t::iterator colon = find(classifier.begin(), classifier.end(), '.');
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| 134 | if (colon != classifier.end()) {
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| 135 | collection = substr(classifier.begin(), colon);
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| 136 | classifier = substr(colon + 1, classifier.end());
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| 137 | }
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| 138 | else{
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| 139 | collection = classifier;
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| 140 | classifier = "";
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| 141 | }
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| 142 | }
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