[15744] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * dynamicclassifieraction.cpp --
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| 4 | * Copyright (C) 2008 DL Consulting Ltd
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| 5 | *
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| 6 | * A component of the Greenstone digital library software
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| 7 | * from the New Zealand Digital Library Project at the
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| 8 | * University of Waikato, New Zealand.
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| 9 | *
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| 10 | * This program is free software; you can redistribute it and/or modify
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| 11 | * it under the terms of the GNU General Public License as published by
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| 12 | * the Free Software Foundation; either version 2 of the License, or
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| 13 | * (at your option) any later version.
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| 14 | *
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| 15 | * This program is distributed in the hope that it will be useful,
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | * GNU General Public License for more details.
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| 19 | *
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| 20 | * You should have received a copy of the GNU General Public License
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| 21 | * along with this program; if not, write to the Free Software
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| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | *
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| 24 | *********************************************************************/
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| 25 |
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| 26 | #include "dynamicclassifieraction.h"
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[15768] | 27 | #include "recptprototools.h"
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[15744] | 28 |
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| 29 |
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| 30 | dynamicclassifieraction::dynamicclassifieraction ()
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| 31 | {
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| 32 | recpt = NULL;
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[15772] | 33 |
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| 34 | cgiarginfo arg_ainfo;
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[15795] | 35 | arg_ainfo.shortname = "dcl";
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| 36 | arg_ainfo.longname = "dynamic classifier ID";
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[15772] | 37 | arg_ainfo.multiplechar = true;
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| 38 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 39 | arg_ainfo.argdefault = "";
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| 40 | arg_ainfo.savedarginfo = cgiarginfo::must;
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| 41 | argsinfo.addarginfo (NULL, arg_ainfo);
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[15807] | 42 |
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| 43 | arg_ainfo.shortname = "dcn";
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| 44 | arg_ainfo.longname = "dynamic classifier node";
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| 45 | arg_ainfo.multiplechar = true;
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| 46 | arg_ainfo.defaultstatus = cgiarginfo::weak;
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| 47 | arg_ainfo.argdefault = "";
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| 48 | arg_ainfo.savedarginfo = cgiarginfo::must;
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| 49 | argsinfo.addarginfo (NULL, arg_ainfo);
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[15744] | 50 | }
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| 51 |
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| 52 |
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| 53 | dynamicclassifieraction::~dynamicclassifieraction()
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| 54 | {
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| 55 | }
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| 56 |
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| 57 |
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| 58 | bool dynamicclassifieraction::check_cgiargs (cgiargsinfoclass &argsinfo, cgiargsclass &args,
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| 59 | recptprotolistclass *protos, ostream &logout)
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| 60 | {
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| 61 | return true;
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| 62 | }
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| 63 |
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| 64 |
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| 65 | void dynamicclassifieraction::get_cgihead_info (cgiargsclass &args, recptprotolistclass *protos,
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| 66 | response_t &response,text_t &response_data,
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| 67 | ostream &logout)
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| 68 | {
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| 69 | response = content;
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| 70 | response_data = "text/html";
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| 71 | }
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| 72 |
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| 73 |
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[15847] | 74 | // define all the macros which might be used by other actions to produce pages.
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[15744] | 75 | void dynamicclassifieraction::define_external_macros (displayclass &disp, cgiargsclass &args,
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| 76 | recptprotolistclass *protos, ostream &logout)
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| 77 | {
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[15847] | 78 | // A valid collection server is vital
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| 79 | recptproto *collectproto = protos->getrecptproto (args["c"], logout);
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| 80 | if (collectproto == NULL)
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| 81 | {
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| 82 | logout << "dynamicclassifieraction::define_external_macros called with NULL collectproto\n";
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| 83 | return;
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| 84 | }
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| 85 |
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| 86 | // Define _dynamicclassifiernavbarentries_ to add buttons to the navigation bar for the dynamic classifiers
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| 87 | text_t navigation_bar_entries = "";
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| 88 | ColInfoResponse_t *cinfo = recpt->get_collectinfo_ptr (collectproto, args["c"], logout);
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| 89 | text_tmap::iterator dynamic_classifier_iterator = cinfo->dynamic_classifiers.begin();
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| 90 | while (dynamic_classifier_iterator != cinfo->dynamic_classifiers.end())
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| 91 | {
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| 92 | text_t dynamic_classifier_id = (*dynamic_classifier_iterator).first;
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| 93 | navigation_bar_entries += "_navbarspacer_";
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| 94 | navigation_bar_entries += "_navtab_(_gwcgi_?c=" + args["c"] + "&a=dc&dcl=" + dynamic_classifier_id + "," + dynamic_classifier_id;
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| 95 | if (args["a"] == "dc" && args["dcl"] == dynamic_classifier_id)
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| 96 | {
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| 97 | navigation_bar_entries += ",selected";
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| 98 | }
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| 99 | navigation_bar_entries += ")";
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| 100 | dynamic_classifier_iterator++;
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| 101 | }
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| 102 |
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| 103 | disp.setmacro("dynamicclassifiernavbarentries", displayclass::defaultpackage, navigation_bar_entries);
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[15744] | 104 | }
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| 105 |
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| 106 |
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| 107 | // define all the macros which are related to pages generated
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| 108 | // by this action. we also load up the formatinfo structure
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| 109 | // here (it's used in do_action as well as here)
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| 110 | void dynamicclassifieraction::define_internal_macros (displayclass &disp, cgiargsclass &args,
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| 111 | recptprotolistclass *protos, ostream &logout)
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| 112 | {
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| 113 | // define_internal_macros sets the following macros:
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| 114 | }
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| 115 |
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| 116 |
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| 117 | bool dynamicclassifieraction::do_action(cgiargsclass &args, recptprotolistclass *protos,
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| 118 | browsermapclass *browsers, displayclass &disp,
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| 119 | outconvertclass &outconvert, ostream &textout,
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| 120 | ostream &logout)
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| 121 | {
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[15795] | 122 | // A valid collection server is vital
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[15744] | 123 | recptproto *collectproto = protos->getrecptproto (args["c"], logout);
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| 124 | if (collectproto == NULL)
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| 125 | {
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| 126 | logout << "dynamicclassifieraction::do_action called with NULL collectproto\n";
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| 127 | return false;
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| 128 | }
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| 129 |
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[15768] | 130 | textout << outconvert << disp << "_document:header_\n";
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| 131 | textout << outconvert << disp << "_document:content_\n";
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| 132 |
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[15795] | 133 | // Check a dynamic classifier ID has been specified
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| 134 | text_t arg_dcl = args["dcl"];
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| 135 | if (arg_dcl.empty())
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[15772] | 136 | {
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[15834] | 137 | textout << outconvert << disp << "Error: Missing dcl argument.\n";
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[15772] | 138 | textout << outconvert << disp << "_document:footer_\n";
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[15795] | 139 | return true;
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[15772] | 140 | }
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| 141 |
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[15795] | 142 | // Check the dynamic classifier ID is valid (ie. there is an entry in the collect.cfg file for it)
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[15772] | 143 | ColInfoResponse_t *cinfo = recpt->get_collectinfo_ptr (collectproto, args["c"], logout);
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[15795] | 144 | if (cinfo->dynamic_classifiers.find(arg_dcl) == cinfo->dynamic_classifiers.end())
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[15772] | 145 | {
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[15834] | 146 | textout << outconvert << disp << "Error: Invalid dcl value \"" << arg_dcl << "\".\n";
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[15772] | 147 | textout << outconvert << disp << "_document:footer_\n";
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[15795] | 148 | return true;
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[15772] | 149 | }
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| 150 |
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[15949] | 151 | // Produce the page
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[15807] | 152 | text_t metadata_element_name = cinfo->dynamic_classifiers[arg_dcl];
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[15949] | 153 | if (args["dcn"].empty())
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[15795] | 154 | {
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[15949] | 155 | // Simple case for the top-level page
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| 156 | output_top_level_page (metadata_element_name, args, collectproto, browsers, disp, outconvert, textout, logout);
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[15795] | 157 | }
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[15949] | 158 | else
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| 159 | {
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| 160 | // More complex case for an internal page
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| 161 | output_internal_page (metadata_element_name, args, collectproto, browsers, disp, outconvert, textout, logout);
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| 162 | }
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[15795] | 163 |
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[15949] | 164 | textout << outconvert << disp << "_document:footer_\n";
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| 165 | return true;
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| 166 | }
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| 167 |
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| 168 |
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| 169 | void dynamicclassifieraction::output_top_level_page (text_t metadata_element_name, cgiargsclass &args,
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| 170 | recptproto *collectproto, browsermapclass *browsers,
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| 171 | displayclass &disp, outconvertclass &outconvert,
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| 172 | ostream &textout, ostream &logout)
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| 173 | {
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| 174 | // Get all the metadata values for the specified element (these become the classifier nodes at the top level)
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| 175 | FilterResponse_t metadata_values_response;
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| 176 | get_metadata_values (metadata_element_name, "", args["c"], collectproto, metadata_values_response, logout);
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| 177 |
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| 178 | // Deal with any hierarchical metadata values
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| 179 | map<text_t, int, lttext_t> classifier_nodes;
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| 180 | ResultDocInfo_tarray::iterator metadata_value_iterator = metadata_values_response.docInfo.begin();
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| 181 | while (metadata_value_iterator != metadata_values_response.docInfo.end())
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[15807] | 182 | {
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[15949] | 183 | // Is this metadata value hierarchical?
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| 184 | text_t metadata_value = (*metadata_value_iterator).OID;
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| 185 | text_t::iterator hierarchy_split_position = findchar(metadata_value.begin(), metadata_value.end(), '|');
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| 186 | if (hierarchy_split_position != metadata_value.end())
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| 187 | {
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| 188 | // Yes, so use the first part of the hierarchy only
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| 189 | metadata_value = substr(metadata_value.begin(), hierarchy_split_position);
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| 190 | }
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[15768] | 191 |
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[15949] | 192 | // Create a node for this metadata value if we haven't seen it before
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| 193 | if (classifier_nodes.find(metadata_value) == classifier_nodes.end())
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[15807] | 194 | {
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[15949] | 195 | classifier_nodes[metadata_value] = 0;
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| 196 | }
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[15940] | 197 |
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[15949] | 198 | // Increment the occurrence count
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| 199 | classifier_nodes[metadata_value] += (*metadata_value_iterator).result_num;
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[15940] | 200 |
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[15949] | 201 | metadata_value_iterator++;
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| 202 | }
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[15940] | 203 |
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[15949] | 204 | // Display the top-level classifier nodes
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| 205 | map<text_t, int, lttext_t>::iterator classifier_nodes_iterator = classifier_nodes.begin();
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| 206 | while (classifier_nodes_iterator != classifier_nodes.end())
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| 207 | {
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| 208 | text_t classifier_node_OID = (*classifier_nodes_iterator).first;
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| 209 | text_t classifier_node_label = (*classifier_nodes_iterator).first;
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| 210 | int classifier_node_numleafdocs = (*classifier_nodes_iterator).second;
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| 211 | output_classifier_node (classifier_node_OID, classifier_node_label, classifier_node_numleafdocs, 0, args, collectproto, browsers, disp, outconvert, textout, logout);
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| 212 | classifier_nodes_iterator++;
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| 213 | }
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| 214 | }
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[15940] | 215 |
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[15807] | 216 |
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[15949] | 217 | void dynamicclassifieraction::output_internal_page (text_t metadata_element_name, cgiargsclass &args,
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| 218 | recptproto *collectproto, browsermapclass *browsers,
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| 219 | displayclass &disp, outconvertclass &outconvert,
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| 220 | ostream &textout, ostream &logout)
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| 221 | {
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| 222 | text_t arg_dcn = args["dcn"];
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| 223 | text_t classifier_node_metadata_value = arg_dcn;
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| 224 | int node_indent = 0;
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[15940] | 225 |
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[15949] | 226 | // Get all the classifier nodes at this level
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| 227 | text_t metadata_value_filter = classifier_node_metadata_value + "|*";
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| 228 | FilterResponse_t metadata_values_response;
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| 229 | get_metadata_values (metadata_element_name, metadata_value_filter, args["c"], collectproto, metadata_values_response, logout);
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[15940] | 230 |
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[15949] | 231 | // Get all the documents at this level
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| 232 | FilterResponse_t document_OIDs_response;
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| 233 | get_documents_with_metadata_value (metadata_element_name, classifier_node_metadata_value, "dls.Title", args["c"], collectproto, document_OIDs_response, logout);
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[15940] | 234 |
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[15949] | 235 | // Check there are some classifier nodes or some documents at this level, otherwise the "dcn" argument was invalid
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| 236 | if (metadata_values_response.docInfo.empty() && document_OIDs_response.docInfo.empty())
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| 237 | {
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| 238 | textout << outconvert << disp << "Error: Invalid dcn value \"" << arg_dcn << "\".\n";
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| 239 | return;
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[15807] | 240 | }
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[15949] | 241 |
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| 242 | // Determine the parent classifier nodes
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| 243 | text_tarray parent_classifier_node_labels;
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| 244 | splitchar(classifier_node_metadata_value.begin(), classifier_node_metadata_value.end(), '|', parent_classifier_node_labels);
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| 245 |
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| 246 | // Display the parent classifier nodes
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| 247 | text_t parent_classifier_node_OID = "";
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| 248 | text_tarray::iterator parent_classifier_node_labels_iterator = parent_classifier_node_labels.begin();
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| 249 | while (parent_classifier_node_labels_iterator != parent_classifier_node_labels.end())
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[15768] | 250 | {
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[15951] | 251 | parent_classifier_node_OID += (parent_classifier_node_OID != "" ? "|" : "");
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[15949] | 252 | parent_classifier_node_OID += *parent_classifier_node_labels_iterator;
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| 253 | text_t parent_classifier_node_label = *parent_classifier_node_labels_iterator;
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| 254 | text_t parent_classifier_node_numleafdocs = "?";
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| 255 | output_classifier_node (parent_classifier_node_OID, parent_classifier_node_label, parent_classifier_node_numleafdocs, node_indent, args, collectproto, browsers, disp, outconvert, textout, logout);
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| 256 | node_indent++;
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[15807] | 257 |
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[15949] | 258 | parent_classifier_node_labels_iterator++;
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| 259 | }
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| 260 |
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| 261 | // Display the classifier nodes at this level
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| 262 | map<text_t, int, lttext_t> classifier_nodes;
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| 263 | ResultDocInfo_tarray::iterator metadata_value_iterator = metadata_values_response.docInfo.begin();
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| 264 | while (metadata_value_iterator != metadata_values_response.docInfo.end())
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| 265 | {
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| 266 | text_t metadata_value = (*metadata_value_iterator).OID;
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| 267 |
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| 268 | if (starts_with(metadata_value, arg_dcn + "|"))
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[15834] | 269 | {
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[15949] | 270 | metadata_value = substr(metadata_value.begin() + (arg_dcn + "|").size(), metadata_value.end());
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[15834] | 271 | }
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| 272 |
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[15949] | 273 | // Is this metadata value hierarchical?
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| 274 | text_t::iterator hierarchy_split_position = findchar(metadata_value.begin(), metadata_value.end(), '|');
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| 275 | if (hierarchy_split_position != metadata_value.end())
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[15807] | 276 | {
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[15949] | 277 | // Yes, so split off the first part of the hierarchy for the classifier node
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| 278 | metadata_value = substr(metadata_value.begin(), hierarchy_split_position);
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[15807] | 279 | }
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| 280 |
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[15949] | 281 | // Create a node for this metadata value if we haven't seen it before
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| 282 | if (classifier_nodes.find(metadata_value) == classifier_nodes.end())
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| 283 | {
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| 284 | classifier_nodes[metadata_value] = 0;
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| 285 | }
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[15834] | 286 |
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[15949] | 287 | // Increment the occurrence count
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| 288 | classifier_nodes[metadata_value] += (*metadata_value_iterator).result_num;
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[15807] | 289 |
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[15949] | 290 | metadata_value_iterator++;
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[15768] | 291 | }
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| 292 |
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[15949] | 293 | // Display the classifier nodes at this level
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| 294 | map<text_t, int, lttext_t>::iterator classifier_nodes_iterator = classifier_nodes.begin();
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| 295 | while (classifier_nodes_iterator != classifier_nodes.end())
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| 296 | {
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| 297 | text_t classifier_node_OID = parent_classifier_node_OID + "|" + (*classifier_nodes_iterator).first;
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| 298 | text_t classifier_node_label = (*classifier_nodes_iterator).first;
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| 299 | int classifier_node_numleafdocs = (*classifier_nodes_iterator).second;
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| 300 | output_classifier_node (classifier_node_OID, classifier_node_label, classifier_node_numleafdocs, node_indent, args, collectproto, browsers, disp, outconvert, textout, logout);
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| 301 | classifier_nodes_iterator++;
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| 302 | }
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| 303 |
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| 304 | // Display the documents at this level
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| 305 | text_tarray document_OIDs;
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| 306 | ResultDocInfo_tarray::iterator document_OID_iterator = document_OIDs_response.docInfo.begin();
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| 307 | while (document_OID_iterator != document_OIDs_response.docInfo.end())
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| 308 | {
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| 309 | document_OIDs.push_back ((*document_OID_iterator).OID);
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| 310 | document_OID_iterator++;
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| 311 | }
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| 312 |
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| 313 | output_document_nodes (document_OIDs, node_indent, args, collectproto, browsers, disp, outconvert, textout, logout);
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[15744] | 314 | }
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[15949] | 315 |
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| 316 |
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| 317 | void dynamicclassifieraction::output_classifier_node (text_t classifier_node_OID, text_t classifier_node_label,
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| 318 | text_t classifier_node_numleafdocs, int classifier_node_indent,
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| 319 | cgiargsclass &args, recptproto *collectproto,
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| 320 | browsermapclass *browsers, displayclass &disp,
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| 321 | outconvertclass &outconvert, ostream &textout,
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| 322 | ostream &logout)
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| 323 | {
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| 324 | // Generate the ResultDocInfo_t containing the information for the classifier node
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| 325 | ResultDocInfo_t classifier_node;
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| 326 | classifier_node.OID = classifier_node_OID;
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| 327 | classifier_node.metadata["doctype"].values.push_back ("classify");
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| 328 | classifier_node.metadata["haschildren"].values.push_back ("1");
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| 329 | classifier_node.metadata["numleafdocs"].values.push_back (classifier_node_numleafdocs);
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| 330 | classifier_node.metadata["Title"].values.push_back (classifier_node_label);
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| 331 |
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| 332 | // Get the format statement for this classifier if there is one, or use the browser's default otherwise
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| 333 | text_t formatstring;
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| 334 | text_t classifier_type = "VList";
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| 335 | browserclass *bptr = browsers->getbrowser (classifier_type);
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| 336 | ColInfoResponse_t *cinfo = recpt->get_collectinfo_ptr (collectproto, args["c"], logout);
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| 337 | if (!get_formatstring (args["dcl"], classifier_type, cinfo->format, formatstring))
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| 338 | {
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| 339 | formatstring = bptr->get_default_formatstring();
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| 340 | }
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| 341 | format_t *formatlistptr = new format_t();
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| 342 | text_tset metadata;
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| 343 | bool getParents = false;
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| 344 | parse_formatstring (formatstring, formatlistptr, metadata, getParents);
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| 345 | bool use_table = is_table_content (formatlistptr);
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| 346 |
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| 347 | // Display the classifier node
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| 348 | bptr->output_section_group (classifier_node, args, args["c"], classifier_node_indent, formatlistptr, use_table, metadata, getParents, collectproto, disp, outconvert, textout, logout);
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| 349 | }
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| 350 |
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| 351 |
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| 352 | void dynamicclassifieraction::output_document_nodes (text_tarray document_OIDs, int document_nodes_indent,
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| 353 | cgiargsclass &args, recptproto *collectproto,
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| 354 | browsermapclass *browsers, displayclass &disp,
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| 355 | outconvertclass &outconvert, ostream &textout,
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| 356 | ostream &logout)
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| 357 | {
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| 358 | // Get the format statement for this classifier if there is one, or use the browser's default otherwise
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| 359 | text_t formatstring;
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| 360 | text_t classifier_type = "VList";
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| 361 | browserclass *bptr = browsers->getbrowser (classifier_type);
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| 362 | ColInfoResponse_t *cinfo = recpt->get_collectinfo_ptr (collectproto, args["c"], logout);
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| 363 | if (!get_formatstring (args["dcl"], classifier_type, cinfo->format, formatstring))
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| 364 | {
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| 365 | formatstring = bptr->get_default_formatstring();
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| 366 | }
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| 367 | format_t *formatlistptr = new format_t();
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| 368 | text_tset metadata;
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| 369 | bool getParents = false;
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| 370 | parse_formatstring (formatstring, formatlistptr, metadata, getParents);
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| 371 | bool use_table = is_table_content (formatlistptr);
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| 372 |
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| 373 | // Request the necessary metadata for the documents
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| 374 | FilterResponse_t document_OIDs_response;
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| 375 | get_info (document_OIDs, args["c"], args["l"], metadata, getParents, collectproto, document_OIDs_response, logout);
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| 376 |
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| 377 | // Display the document nodes
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| 378 | bptr->output_section_group (document_OIDs_response, args, args["c"], document_nodes_indent, formatlistptr, use_table, metadata, getParents, collectproto, disp, outconvert, textout, logout);
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| 379 | }
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