1 | /**********************************************************************
|
---|
2 | *
|
---|
3 | * dynamicclassifieraction.cpp --
|
---|
4 | * Copyright (C) 2008 DL Consulting Ltd
|
---|
5 | *
|
---|
6 | * A component of the Greenstone digital library software
|
---|
7 | * from the New Zealand Digital Library Project at the
|
---|
8 | * University of Waikato, New Zealand.
|
---|
9 | *
|
---|
10 | * This program is free software; you can redistribute it and/or modify
|
---|
11 | * it under the terms of the GNU General Public License as published by
|
---|
12 | * the Free Software Foundation; either version 2 of the License, or
|
---|
13 | * (at your option) any later version.
|
---|
14 | *
|
---|
15 | * This program is distributed in the hope that it will be useful,
|
---|
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
18 | * GNU General Public License for more details.
|
---|
19 | *
|
---|
20 | * You should have received a copy of the GNU General Public License
|
---|
21 | * along with this program; if not, write to the Free Software
|
---|
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
23 | *
|
---|
24 | *********************************************************************/
|
---|
25 |
|
---|
26 | #include "dynamicclassifieraction.h"
|
---|
27 | #include "recptprototools.h"
|
---|
28 |
|
---|
29 |
|
---|
30 | dynamicclassifieraction::dynamicclassifieraction ()
|
---|
31 | {
|
---|
32 | recpt = NULL;
|
---|
33 |
|
---|
34 | cgiarginfo arg_ainfo;
|
---|
35 | arg_ainfo.shortname = "dcl";
|
---|
36 | arg_ainfo.longname = "dynamic classifier ID";
|
---|
37 | arg_ainfo.multiplechar = true;
|
---|
38 | arg_ainfo.defaultstatus = cgiarginfo::weak;
|
---|
39 | arg_ainfo.argdefault = "";
|
---|
40 | arg_ainfo.savedarginfo = cgiarginfo::must;
|
---|
41 | argsinfo.addarginfo (NULL, arg_ainfo);
|
---|
42 |
|
---|
43 | arg_ainfo.shortname = "dcn";
|
---|
44 | arg_ainfo.longname = "dynamic classifier node";
|
---|
45 | arg_ainfo.multiplechar = true;
|
---|
46 | arg_ainfo.defaultstatus = cgiarginfo::weak;
|
---|
47 | arg_ainfo.argdefault = "";
|
---|
48 | arg_ainfo.savedarginfo = cgiarginfo::must;
|
---|
49 | argsinfo.addarginfo (NULL, arg_ainfo);
|
---|
50 | }
|
---|
51 |
|
---|
52 |
|
---|
53 | dynamicclassifieraction::~dynamicclassifieraction()
|
---|
54 | {
|
---|
55 | }
|
---|
56 |
|
---|
57 |
|
---|
58 | bool dynamicclassifieraction::check_cgiargs (cgiargsinfoclass &argsinfo, cgiargsclass &args,
|
---|
59 | recptprotolistclass *protos, ostream &logout)
|
---|
60 | {
|
---|
61 | return true;
|
---|
62 | }
|
---|
63 |
|
---|
64 |
|
---|
65 | void dynamicclassifieraction::get_cgihead_info (cgiargsclass &args, recptprotolistclass *protos,
|
---|
66 | response_t &response,text_t &response_data,
|
---|
67 | ostream &logout)
|
---|
68 | {
|
---|
69 | response = content;
|
---|
70 | response_data = "text/html";
|
---|
71 | }
|
---|
72 |
|
---|
73 |
|
---|
74 | // define all the macros which might be used by other actions to produce pages.
|
---|
75 | void dynamicclassifieraction::define_external_macros (displayclass &disp, cgiargsclass &args,
|
---|
76 | recptprotolistclass *protos, ostream &logout)
|
---|
77 | {
|
---|
78 | // A valid collection server is vital
|
---|
79 | recptproto *collectproto = protos->getrecptproto (args["c"], logout);
|
---|
80 | if (collectproto == NULL)
|
---|
81 | {
|
---|
82 | logout << "dynamicclassifieraction::define_external_macros called with NULL collectproto\n";
|
---|
83 | return;
|
---|
84 | }
|
---|
85 |
|
---|
86 | // Define _dynamicclassifiernavbarentries_ to add buttons to the navigation bar for the dynamic classifiers
|
---|
87 | text_t navigation_bar_entries = "";
|
---|
88 | ColInfoResponse_t *cinfo = recpt->get_collectinfo_ptr (collectproto, args["c"], logout);
|
---|
89 | text_tmap::iterator dynamic_classifier_iterator = cinfo->dynamic_classifiers.begin();
|
---|
90 | while (dynamic_classifier_iterator != cinfo->dynamic_classifiers.end())
|
---|
91 | {
|
---|
92 | text_t dynamic_classifier_id = (*dynamic_classifier_iterator).first;
|
---|
93 | navigation_bar_entries += "_navbarspacer_";
|
---|
94 | navigation_bar_entries += "_navtab_(_gwcgi_?c=" + args["c"] + "&a=dc&dcl=" + dynamic_classifier_id + "," + dynamic_classifier_id;
|
---|
95 | if (args["a"] == "dc" && args["dcl"] == dynamic_classifier_id)
|
---|
96 | {
|
---|
97 | navigation_bar_entries += ",selected";
|
---|
98 | }
|
---|
99 | navigation_bar_entries += ")";
|
---|
100 | dynamic_classifier_iterator++;
|
---|
101 | }
|
---|
102 |
|
---|
103 | disp.setmacro("dynamicclassifiernavbarentries", displayclass::defaultpackage, navigation_bar_entries);
|
---|
104 | }
|
---|
105 |
|
---|
106 |
|
---|
107 | // define all the macros which are related to pages generated
|
---|
108 | // by this action. we also load up the formatinfo structure
|
---|
109 | // here (it's used in do_action as well as here)
|
---|
110 | void dynamicclassifieraction::define_internal_macros (displayclass &disp, cgiargsclass &args,
|
---|
111 | recptprotolistclass *protos, ostream &logout)
|
---|
112 | {
|
---|
113 | // define_internal_macros sets the following macros:
|
---|
114 | }
|
---|
115 |
|
---|
116 |
|
---|
117 | bool dynamicclassifieraction::do_action(cgiargsclass &args, recptprotolistclass *protos,
|
---|
118 | browsermapclass *browsers, displayclass &disp,
|
---|
119 | outconvertclass &outconvert, ostream &textout,
|
---|
120 | ostream &logout)
|
---|
121 | {
|
---|
122 | // A valid collection server is vital
|
---|
123 | recptproto *collectproto = protos->getrecptproto (args["c"], logout);
|
---|
124 | if (collectproto == NULL)
|
---|
125 | {
|
---|
126 | logout << "dynamicclassifieraction::do_action called with NULL collectproto\n";
|
---|
127 | return false;
|
---|
128 | }
|
---|
129 |
|
---|
130 | textout << outconvert << disp << "_document:header_\n";
|
---|
131 | textout << outconvert << disp << "_document:content_\n";
|
---|
132 |
|
---|
133 | // Check a dynamic classifier ID has been specified
|
---|
134 | text_t arg_dcl = args["dcl"];
|
---|
135 | if (arg_dcl.empty())
|
---|
136 | {
|
---|
137 | textout << outconvert << disp << "Error: Missing dcl argument.\n";
|
---|
138 | textout << outconvert << disp << "_document:footer_\n";
|
---|
139 | return true;
|
---|
140 | }
|
---|
141 |
|
---|
142 | // Check the dynamic classifier ID is valid (ie. there is an entry in the collect.cfg file for it)
|
---|
143 | ColInfoResponse_t *cinfo = recpt->get_collectinfo_ptr (collectproto, args["c"], logout);
|
---|
144 | if (cinfo->dynamic_classifiers.find(arg_dcl) == cinfo->dynamic_classifiers.end())
|
---|
145 | {
|
---|
146 | textout << outconvert << disp << "Error: Invalid dcl value \"" << arg_dcl << "\".\n";
|
---|
147 | textout << outconvert << disp << "_document:footer_\n";
|
---|
148 | return true;
|
---|
149 | }
|
---|
150 |
|
---|
151 | text_t metadata_element_name = cinfo->dynamic_classifiers[arg_dcl];
|
---|
152 | text_t classifier_type = "VList";
|
---|
153 | browserclass *bptr = browsers->getbrowser (classifier_type);
|
---|
154 |
|
---|
155 | // Get the formatstring if there is one, or use the browser's default otherwise
|
---|
156 | text_t formatstring;
|
---|
157 | if (!get_formatstring (arg_dcl, classifier_type, cinfo->format, formatstring))
|
---|
158 | {
|
---|
159 | formatstring = bptr->get_default_formatstring();
|
---|
160 | }
|
---|
161 | format_t *formatlistptr = new format_t();
|
---|
162 | text_tset metadata;
|
---|
163 | bool getParents = false;
|
---|
164 | parse_formatstring (formatstring, formatlistptr, metadata, getParents);
|
---|
165 | bool use_table = is_table_content (formatlistptr);
|
---|
166 |
|
---|
167 | // Check if a dynamic classifier node has been specified
|
---|
168 | text_t arg_dcn = args["dcn"];
|
---|
169 | if (arg_dcn.empty())
|
---|
170 | {
|
---|
171 | // No, so display the top-level classifier page, containing all the metadata values for the specified element
|
---|
172 | FilterResponse_t metadata_values_response;
|
---|
173 | get_metadata_values (metadata_element_name, args["c"], collectproto, metadata_values_response, logout);
|
---|
174 |
|
---|
175 | // Add metadata necessary for output_section_group() to display the results as classifier nodes
|
---|
176 | ResultDocInfo_tarray::iterator metadata_value_iterator = metadata_values_response.docInfo.begin();
|
---|
177 | while (metadata_value_iterator != metadata_values_response.docInfo.end())
|
---|
178 | {
|
---|
179 | (*metadata_value_iterator).metadata["doctype"].values.push_back("classify");
|
---|
180 | (*metadata_value_iterator).metadata["haschildren"].values.push_back("1");
|
---|
181 | (*metadata_value_iterator).metadata["numleafdocs"].values.push_back((*metadata_value_iterator).result_num);
|
---|
182 | (*metadata_value_iterator).metadata["Title"].values.push_back((*metadata_value_iterator).OID);
|
---|
183 | metadata_value_iterator++;
|
---|
184 | }
|
---|
185 |
|
---|
186 | // Display the classifier nodes
|
---|
187 | bptr->output_section_group (metadata_values_response, args, args["c"], 0, formatlistptr, use_table, metadata, getParents, collectproto, disp, outconvert, textout, logout);
|
---|
188 | }
|
---|
189 | else
|
---|
190 | {
|
---|
191 | // Yes, so get all the documents that fall under this node
|
---|
192 | text_t metadata_value = arg_dcn;
|
---|
193 | FilterResponse_t document_OIDs_response;
|
---|
194 | get_documents_with_metadata_value (metadata_element_name, metadata_value, "dls.Title", args["c"], collectproto, document_OIDs_response, logout);
|
---|
195 |
|
---|
196 | // Check the metadata value is valid
|
---|
197 | if (document_OIDs_response.docInfo.empty())
|
---|
198 | {
|
---|
199 | textout << outconvert << disp << "Error: No documents have metadata value \"" << arg_dcn << "\".\n";
|
---|
200 | textout << outconvert << disp << "_document:footer_\n";
|
---|
201 | return true;
|
---|
202 | }
|
---|
203 |
|
---|
204 | // Make an array of matching document OIDs
|
---|
205 | text_tarray document_OIDs;
|
---|
206 | ResultDocInfo_tarray::iterator document_OID_iterator = document_OIDs_response.docInfo.begin();
|
---|
207 | while (document_OID_iterator != document_OIDs_response.docInfo.end())
|
---|
208 | {
|
---|
209 | document_OIDs.push_back ((*document_OID_iterator).OID);
|
---|
210 | document_OID_iterator++;
|
---|
211 | }
|
---|
212 |
|
---|
213 | // Display the classifier node
|
---|
214 | ResultDocInfo_t classifier_node;
|
---|
215 | classifier_node.OID = arg_dcn;
|
---|
216 | classifier_node.metadata["doctype"].values.push_back("classify");
|
---|
217 | classifier_node.metadata["haschildren"].values.push_back("1");
|
---|
218 | classifier_node.metadata["numleafdocs"].values.push_back(document_OIDs.size());
|
---|
219 | classifier_node.metadata["Title"].values.push_back(classifier_node.OID);
|
---|
220 | bptr->output_section_group (classifier_node, args, args["c"], 0, formatlistptr, use_table, metadata, getParents, collectproto, disp, outconvert, textout, logout);
|
---|
221 |
|
---|
222 | // Request the necessary metadata for the documents under this node
|
---|
223 | FilterResponse_t document_info_response;
|
---|
224 | get_info (document_OIDs, args["c"], args["l"], metadata, getParents, collectproto, document_info_response, logout);
|
---|
225 |
|
---|
226 | // Display the document nodes
|
---|
227 | bptr->output_section_group (document_info_response, args, args["c"], 1, formatlistptr, use_table, metadata, getParents, collectproto, disp, outconvert, textout, logout);
|
---|
228 | }
|
---|
229 |
|
---|
230 | textout << outconvert << disp << "_document:footer_\n";
|
---|
231 | return true;
|
---|
232 | }
|
---|