metaproxy  1.13.0
filter_sd_remove.cpp
Go to the documentation of this file.
1 /* This file is part of Metaproxy.
2  Copyright (C) Index Data
3 
4 Metaproxy is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
7 version.
8 
9 Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 for more details.
13 
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18 
19 #include "config.hpp"
20 #include "filter_sd_remove.hpp"
21 #include <metaproxy/package.hpp>
22 #include <metaproxy/util.hpp>
23 #include <yaz/zgdu.h>
24 #include <yaz/diagbib1.h>
25 #include <metaproxy/filter.hpp>
26 
27 namespace metaproxy_1 {
28  namespace filter {
29  class SD_Remove : public Base {
30  public:
31  SD_Remove();
32  ~SD_Remove();
33  void process(metaproxy_1::Package & package) const;
34  void configure(const xmlNode * ptr, bool test_only,
35  const char *path);
36  };
37  }
38 }
39 
40 namespace mp = metaproxy_1;
41 namespace yf = mp::filter;
42 
43 yf::SD_Remove::SD_Remove()
44 {
45 }
46 
47 yf::SD_Remove::~SD_Remove()
48 {
49 }
50 
51 void yf::SD_Remove::configure(const xmlNode *xmlnode, bool test_only,
52  const char *path)
53 {
54  if (xmlnode)
55  {
56  xmlNode *ptr;
57  for (ptr = xmlnode->children; ptr; ptr = ptr->next)
58  {
59  if (ptr->type == XML_ELEMENT_NODE)
60  throw mp::filter::FilterException("Bad element "
61  + std::string((const char *)
62  ptr->name));
63  }
64  }
65 }
66 
67 static void diagrec_to_sutrs(WRBUF b, Z_DiagRec *diag)
68 {
69  wrbuf_puts(b," ERROR ");
70  if (diag->which != Z_DiagRec_defaultFormat)
71  wrbuf_puts(b, "diag not in default format");
72  else
73  {
74  Z_DefaultDiagFormat *e = diag->u.defaultFormat;
75  wrbuf_printf(b, ODR_INT_PRINTF ": %s", *e->condition,
76  diagbib1_str(*e->condition));
77  if (e->u.v2Addinfo && *e->u.v2Addinfo) // v3Addinfo is same data
78  {
79  wrbuf_puts(b, " -- ");
80  wrbuf_puts(b, e->u.v2Addinfo);
81  }
82  }
83  wrbuf_puts(b, "\n");
84 }
85 
86 void yf::SD_Remove::process(mp::Package &package) const
87 {
88  package.move();
89 
90  Z_GDU *gdu_res = package.response().get();
91  if (gdu_res && gdu_res->which == Z_GDU_Z3950)
92  {
93  Z_NamePlusRecordList *records = 0;
94  Z_APDU *apdu = gdu_res->u.z3950;
95  if (apdu->which == Z_APDU_presentResponse)
96  {
97  Z_PresentResponse * pr_res = apdu->u.presentResponse;
98  if (pr_res->numberOfRecordsReturned
99  && *(pr_res->numberOfRecordsReturned) > 0
100  && pr_res->records
101  && pr_res->records->which == Z_Records_DBOSD)
102  {
103  records = pr_res->records->u.databaseOrSurDiagnostics;
104  }
105  }
106  if (apdu->which == Z_APDU_searchResponse)
107  {
108  Z_SearchResponse *sr_res = apdu->u.searchResponse;
109  if (
110  sr_res->numberOfRecordsReturned
111  && *(sr_res->numberOfRecordsReturned) > 0
112  && sr_res->records
113  && sr_res->records->which == Z_Records_DBOSD)
114  {
115  records = sr_res->records->u.databaseOrSurDiagnostics;
116  }
117  }
118  if (records)
119  {
120  mp::odr odr_en(ODR_ENCODE);
121  int i;
122  for (i = 0; i < records->num_records; i++)
123  {
124  Z_NamePlusRecord *npr = records->records[i];
125  if (npr->which == Z_NamePlusRecord_surrogateDiagnostic)
126  {
127  WRBUF w = wrbuf_alloc();
128  diagrec_to_sutrs(w, npr->u.surrogateDiagnostic);
129  npr->which = Z_NamePlusRecord_databaseRecord;
130  npr->u.databaseRecord = z_ext_record_sutrs(odr_en,
131  wrbuf_buf(w),
132  wrbuf_len(w));
133  wrbuf_destroy(w);
134  }
135  }
136  package.response() = gdu_res;
137  }
138  }
139 }
140 
141 
142 static mp::filter::Base* filter_creator()
143 {
144  return new mp::filter::SD_Remove;
145 }
146 
147 extern "C" {
148  struct metaproxy_1_filter_struct metaproxy_1_filter_sd_remove = {
149  0,
150  "sd_remove",
152  };
153 }
154 
155 
156 /*
157  * Local variables:
158  * c-basic-offset: 4
159  * c-file-style: "Stroustrup"
160  * indent-tabs-mode: nil
161  * End:
162  * vim: shiftwidth=4 tabstop=8 expandtab
163  */
164 
void configure(const xmlNode *ptr, bool test_only, const char *path)
struct metaproxy_1_filter_struct metaproxy_1_filter_sd_remove
static void diagrec_to_sutrs(WRBUF b, Z_DiagRec *diag)
void process(metaproxy_1::Package &package) const
static mp::filter::Base * filter_creator()