1 |
|
---|
2 | #ifndef Z3950PROTO_H
|
---|
3 | #define Z3050PROTO_H
|
---|
4 |
|
---|
5 | #include "z3950proto.h"
|
---|
6 | #include "comtypes.h"
|
---|
7 | #include <stdio.h>
|
---|
8 |
|
---|
9 | /***
|
---|
10 | We will use the "collection" argument as the name of the database
|
---|
11 | to query on the z3950 server.
|
---|
12 | ***/
|
---|
13 |
|
---|
14 |
|
---|
15 | z3950_server::z3950_server() {
|
---|
16 | count=0;
|
---|
17 | info=NULL;
|
---|
18 | meta["iconcollection"]="/~johnmcp/gsdl/images/zserver.png";
|
---|
19 | }
|
---|
20 |
|
---|
21 |
|
---|
22 |
|
---|
23 |
|
---|
24 | // z3950 Protocol functions
|
---|
25 | z3950proto::z3950proto() {
|
---|
26 | zserver_count=0;
|
---|
27 | }
|
---|
28 |
|
---|
29 | void z3950proto::add_server (const z3950_server& zserver) {
|
---|
30 |
|
---|
31 | // append the new server
|
---|
32 | zserver_count++;
|
---|
33 | zservers.push_back(zserver);
|
---|
34 | }
|
---|
35 |
|
---|
36 | void z3950proto::configure (const text_t &/*key*/,
|
---|
37 | const text_tarray &/*cfgline*/) {
|
---|
38 |
|
---|
39 | // this is called for each line in the gsdlsite.cfg file
|
---|
40 | /* cerr << "z3950proto::configure called:"
|
---|
41 | << "key is " << key.getcstr()
|
---|
42 | << "\n1st line is " << cfgline[0].getcstr() << endl;
|
---|
43 | */
|
---|
44 | }
|
---|
45 |
|
---|
46 |
|
---|
47 | bool z3950proto::init (ostream &/*logout*/) {
|
---|
48 | // set up tcp connection to server here?
|
---|
49 | // we might also read in the config file here (instead of librarymain.cpp)
|
---|
50 |
|
---|
51 | //
|
---|
52 |
|
---|
53 | // logout goes to initout.txt
|
---|
54 | // logout <<"zdebug:init:Number of z3950 servers: "<< zserver_count << "\n";
|
---|
55 | //logout << "\t1st server name: " << zservers[0].getName().getcstr() << "\n";
|
---|
56 | return true;
|
---|
57 |
|
---|
58 | }
|
---|
59 |
|
---|
60 | /*text_t z3950proto::get_protocol_name () {
|
---|
61 | return "z3950proto";
|
---|
62 | }
|
---|
63 | */
|
---|
64 |
|
---|
65 | void z3950proto::get_collection_list (text_tarray &collist,
|
---|
66 | comerror_t &/*err*/,
|
---|
67 | ostream &/*logout*/) {
|
---|
68 | // logout here DOESN'T go to initout.txt
|
---|
69 | // logout << "zdebug: get_collection_list called:\n";
|
---|
70 |
|
---|
71 | /** *** for now, we are assuming that each SERVER is a GSDL collection,
|
---|
72 | as opposed to each DATABASE on the servers.
|
---|
73 | */
|
---|
74 | z3950_server_array::iterator here = zservers.begin();
|
---|
75 | z3950_server_array::iterator end = zservers.end();
|
---|
76 | while (here != end) {
|
---|
77 | collist.push_back(here->getName());
|
---|
78 | //const ShortColInfo_t *info=here->getInfo();
|
---|
79 | //collist.push_back(info->name);
|
---|
80 | here++;
|
---|
81 | }
|
---|
82 | }
|
---|
83 |
|
---|
84 | void z3950proto::has_collection (const text_t &collection, bool &hascollection,
|
---|
85 | comerror_t &/*err*/, ostream &/*logout*/) {
|
---|
86 | z3950_server_array::iterator here = zservers.begin();
|
---|
87 | z3950_server_array::iterator end = zservers.end();
|
---|
88 | while (here != end) {
|
---|
89 | if(here->getName()==collection) {
|
---|
90 | hascollection=true;
|
---|
91 | return;
|
---|
92 | }
|
---|
93 | here++;
|
---|
94 | }
|
---|
95 | hascollection=false;
|
---|
96 | }
|
---|
97 |
|
---|
98 | void z3950proto::ping (const text_t &/*collection*/, bool &wassuccess,
|
---|
99 | comerror_t &/*err*/, ostream &/*logout*/) {
|
---|
100 | // should we just ping the server, or actually create a connection
|
---|
101 | // to the z39.50 server process on the machine ?
|
---|
102 | wassuccess = true;
|
---|
103 | }
|
---|
104 |
|
---|
105 | void z3950proto::get_collectinfo (const text_t &collection,
|
---|
106 | ColInfoResponse_t &collectinfo,
|
---|
107 | comerror_t &err, ostream &logout) {
|
---|
108 |
|
---|
109 | // set err to protocolError if something goes wrong...
|
---|
110 |
|
---|
111 | z3950_server_array::iterator here = zservers.begin();
|
---|
112 | z3950_server_array::iterator end = zservers.end();
|
---|
113 | while (here != end) {
|
---|
114 | if(here->getName()==collection) {
|
---|
115 | break;
|
---|
116 | }
|
---|
117 | here++;
|
---|
118 | }
|
---|
119 |
|
---|
120 | // is this right? ie does end refer to the last element, or AFTER the
|
---|
121 | // last element?
|
---|
122 | if (here==end) {
|
---|
123 | err=protocolError;
|
---|
124 | logout << "z39.50: couldn't find collection"
|
---|
125 | << collection.getcstr()
|
---|
126 | << endl;
|
---|
127 | return;
|
---|
128 | }
|
---|
129 |
|
---|
130 | /* collectinfo.shortInfo.name="sdfg";
|
---|
131 | collectinfo.shortInfo.host="localhost";
|
---|
132 | collectinfo.shortInfo.port=0; */
|
---|
133 | const ShortColInfo_t *colinfo=here->getInfo();
|
---|
134 | collectinfo.shortInfo.name=colinfo->name;
|
---|
135 | collectinfo.shortInfo.host=colinfo->host;
|
---|
136 | collectinfo.shortInfo.port=colinfo->port;
|
---|
137 |
|
---|
138 | collectinfo.isPublic=true;
|
---|
139 | // don't use beta field
|
---|
140 | /*collectinfo.isBeta=false;*/
|
---|
141 | collectinfo.buildDate=1;
|
---|
142 | // leave ccsCols empty (no cross-coll. searching - for now)
|
---|
143 | /*collectinfo.ccsCols=(text_tarray);*/ //not like this!!!
|
---|
144 | collectinfo.languages.push_back("en");
|
---|
145 | collectinfo.languages.push_back("fr");
|
---|
146 | collectinfo.numDocs=0;
|
---|
147 | collectinfo.numWords=0;
|
---|
148 | collectinfo.numBytes=0;
|
---|
149 | // copy the text maps over.
|
---|
150 | // collectinfo.collectionmeta; // text_tmap
|
---|
151 | // delete collectinfo.collectionmeta;
|
---|
152 | collectinfo.collectionmeta=*(here->getMeta());
|
---|
153 | /* collectinfo.format; //text_tmap
|
---|
154 | collectinfo.building; //text_tmap
|
---|
155 | */
|
---|
156 |
|
---|
157 | collectinfo.receptionist="z3950"; /* for now... this is a url,
|
---|
158 | relative to .../cgi-bin */
|
---|
159 | }
|
---|
160 |
|
---|
161 | void z3950proto::get_filterinfo (const text_t &/*collection*/,
|
---|
162 | InfoFiltersResponse_t &/*response*/,
|
---|
163 | comerror_t &/*err*/, ostream &/*logout*/) {
|
---|
164 |
|
---|
165 | }
|
---|
166 |
|
---|
167 | void z3950proto::filter (const text_t &collection,
|
---|
168 | FilterRequest_t &request,
|
---|
169 | FilterResponse_t &response,
|
---|
170 | comerror_t &err, ostream &logout) {
|
---|
171 | // assume this function is only called when creating the title page,
|
---|
172 | // and looking for the metadata regarding icons.
|
---|
173 | response.numDocs=0;
|
---|
174 | response.isApprox=Approximate; // Exact | Approximate | MoreThan
|
---|
175 | // leave response.termInfo empty
|
---|
176 | // leave response.docInfo empty
|
---|
177 | /* got the following for first query:
|
---|
178 | request.filterResultOptions=FRmetadata;
|
---|
179 | request.getParents=getParents
|
---|
180 | request.fields=metadata
|
---|
181 | request.docSet (includes OID);
|
---|
182 | */
|
---|
183 | // fill in the metadata for each of the OIDs (if it is requested)
|
---|
184 | if (request.filterResultOptions & FRmetadata) {
|
---|
185 | // request.fields // type text_tset
|
---|
186 | // docInfo is type ResultDocInfo_tarray
|
---|
187 | ColInfoResponse_t *info = new ColInfoResponse_t;
|
---|
188 | get_collectinfo (collection, *info, err, logout);
|
---|
189 | // should check err returned here....
|
---|
190 |
|
---|
191 | ResultDocInfo_t *docInfo=new ResultDocInfo_t;
|
---|
192 |
|
---|
193 | text_tmap::iterator it=info->collectionmeta.find("collectionname");
|
---|
194 | // cerr now goes to errout.txt in etc directory
|
---|
195 | // "(*it).first" is key, "(*it).second" is value(s).
|
---|
196 | if (it!=info->collectionmeta.end())
|
---|
197 | docInfo->metadata["collectionname"].values.push_back((*it).second);
|
---|
198 | else // needs to exist, but be empty
|
---|
199 | docInfo->metadata["collectionname"].values.push_back("");
|
---|
200 |
|
---|
201 | it=info->collectionmeta.find("iconcollection");
|
---|
202 | if (it!=info->collectionmeta.end())
|
---|
203 | docInfo->metadata["iconcollection"].values.push_back((*it).second);
|
---|
204 | else // needs to exist, but be empty
|
---|
205 | docInfo->metadata["iconcollection"].values.push_back("");
|
---|
206 |
|
---|
207 | it=info->collectionmeta.find("iconcollectionsmall");
|
---|
208 | if (it!=info->collectionmeta.end())
|
---|
209 | docInfo->metadata["iconcollectionsmall"].values.push_back((*it).second);
|
---|
210 | else // needs to exist, but be empty
|
---|
211 | docInfo->metadata["iconcollectionsmall"].values.push_back("");
|
---|
212 |
|
---|
213 |
|
---|
214 | response.docInfo.push_back(*docInfo);
|
---|
215 | }
|
---|
216 |
|
---|
217 | err=noError;
|
---|
218 | }
|
---|
219 |
|
---|
220 | void z3950proto::get_document (const text_t &/*collection*/,
|
---|
221 | const DocumentRequest_t &/*request*/,
|
---|
222 | DocumentResponse_t &/*response*/,
|
---|
223 | comerror_t &err, ostream &logout) {
|
---|
224 |
|
---|
225 | if (0) {
|
---|
226 | err=protocolError;
|
---|
227 | logout << "Some error\n";
|
---|
228 | }
|
---|
229 | }
|
---|
230 |
|
---|
231 |
|
---|
232 | #endif
|
---|