src/querytowrbuf.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) 1995-2010 Index Data
   3  * See the file LICENSE for details.
   4  */
   5
   6 /** \file querytowrbuf.c
   7     \brief Convert Z39.50 Z_Query to PQF (as WRBUF string)
   8  */
   9
  10 #include <stdio.h>
  11 #include <assert.h>
  12
  13 #include <yaz/logrpn.h>
  14 #include <yaz/querytowrbuf.h>
  15 #include <yaz/oid_db.h>
  16
  17 void yaz_encode_pqf_term(WRBUF b, const char *term, int len)
  18 {
  19     int i;
  20     for (i = 0; i < len; i++)
  21         if (strchr(" \"{", term[i]))
  22             break;
  23     if (i == len && i)
  24         wrbuf_printf(b, "%.*s ", len, term);
  25     else
  26     {
  27         wrbuf_putc(b, '"');
  28         for (i = 0; i<len; i++)
  29         {
  30             if (term[i] == '"')
  31                 wrbuf_putc(b, '\\');
  32             wrbuf_putc(b, term[i]);
  33         }
  34         wrbuf_printf(b, "\" ");
  35     }
  36 }
  37
  38 static void yaz_attribute_element_to_wrbuf(WRBUF b,
  39                                            const Z_AttributeElement *element)
  40 {
  41     int i;
  42
  43     wrbuf_puts(b, "@attr ");
  44     if (element->attributeSet)
  45     {
  46         char oid_name_str[OID_STR_MAX];
  47         const char *setname = yaz_oid_to_string_buf(element->attributeSet,
  48                                                     0, oid_name_str);
  49         if (setname)
  50         {
  51             wrbuf_puts(b, setname);
  52             wrbuf_puts(b, " ");
  53         }
  54     }
  55     wrbuf_printf(b, ODR_INT_PRINTF "=", *element->attributeType);
  56     switch (element->which)
  57     {
  58     case Z_AttributeValue_numeric:
  59         wrbuf_printf(b, ODR_INT_PRINTF, *element->value.numeric);
  60         break;
  61     case Z_AttributeValue_complex:
  62         for (i = 0; i<element->value.complex->num_list; i++)
  63         {
  64             if (i)
  65                 wrbuf_printf(b, ",");
  66             if (element->value.complex->list[i]->which ==
  67                 Z_StringOrNumeric_string)
  68                 wrbuf_printf(b, "%s",
  69                              element->value.complex->list[i]->u.string);
  70             else if (element->value.complex->list[i]->which ==
  71                      Z_StringOrNumeric_numeric)
  72                 wrbuf_printf(b, ODR_INT_PRINTF,
  73                              *element->value.complex->list[i]->u.numeric);
  74         }
  75         break;
  76     default:
  77         wrbuf_printf (b, "@attr 1=unknown");
  78     }
  79     wrbuf_puts(b, " ");
  80 }
  81
  82 static const char *complex_op_name(const Z_Operator *op)
  83 {
  84     switch (op->which)
  85     {
  86     case Z_Operator_and:
  87         return "and";
  88     case Z_Operator_or:
  89         return "or";
  90     case Z_Operator_and_not:
  91         return "not";
  92     case Z_Operator_prox:
  93         return "prox";
  94     default:
  95         return "unknown complex operator";
  96     }
  97 }
  98
  99 static void yaz_apt_to_wrbuf(WRBUF b, const Z_AttributesPlusTerm *zapt)
 100 {
 101     int num_attributes = zapt->attributes->num_attributes;
 102     int i;
 103     for (i = 0; i<num_attributes; i++)
 104         yaz_attribute_element_to_wrbuf(b,zapt->attributes->attributes[i]);
 105
 106     switch (zapt->term->which)
 107     {
 108     case Z_Term_general:
 109         yaz_encode_pqf_term(b, (const char *)zapt->term->u.general->buf,
 110                             zapt->term->u.general->len);
 111         break;
 112     case Z_Term_characterString:
 113         wrbuf_printf(b, "@term string ");
 114         yaz_encode_pqf_term(b, zapt->term->u.characterString,
 115                             strlen(zapt->term->u.characterString));
 116         break;
 117     case Z_Term_numeric:
 118         wrbuf_printf(b, "@term numeric " ODR_INT_PRINTF " ",
 119                      *zapt->term->u.numeric);
 120         break;
 121     case Z_Term_null:
 122         wrbuf_printf(b, "@term null x");
 123         break;
 124     default:
 125         wrbuf_printf(b, "@term null unknown%d ", zapt->term->which);
 126     }
 127 }
 128
 129 static void yaz_rpnstructure_to_wrbuf(WRBUF b, const Z_RPNStructure *zs)
 130 {
 131     if (zs->which == Z_RPNStructure_complex)
 132     {
 133         Z_Operator *op = zs->u.complex->roperator;
 134         wrbuf_printf(b, "@%s ", complex_op_name(op) );
 135         if (op->which== Z_Operator_prox)
 136         {
 137             if (!op->u.prox->exclusion)
 138                 wrbuf_putc(b, 'n');
 139             else if (*op->u.prox->exclusion)
 140                 wrbuf_putc(b, '1');
 141             else
 142                 wrbuf_putc(b, '0');
 143
 144             wrbuf_printf(b, " " ODR_INT_PRINTF " %d "
 145                          ODR_INT_PRINTF " ", *op->u.prox->distance,
 146                          *op->u.prox->ordered,
 147                          *op->u.prox->relationType);
 148
 149             switch(op->u.prox->which)
 150             {
 151             case Z_ProximityOperator_known:
 152                 wrbuf_putc(b, 'k');
 153                 break;
 154             case Z_ProximityOperator_private:
 155                 wrbuf_putc(b, 'p');
 156                 break;
 157             default:
 158                 wrbuf_printf(b, "%d", op->u.prox->which);
 159             }
 160             if (op->u.prox->u.known)
 161                 wrbuf_printf(b, " " ODR_INT_PRINTF " ", *op->u.prox->u.known);
 162             else
 163                 wrbuf_printf(b, " 0 ");
 164         }
 165         yaz_rpnstructure_to_wrbuf(b,zs->u.complex->s1);
 166         yaz_rpnstructure_to_wrbuf(b,zs->u.complex->s2);
 167     }
 168     else if (zs->which == Z_RPNStructure_simple)
 169     {
 170         if (zs->u.simple->which == Z_Operand_APT)
 171             yaz_apt_to_wrbuf(b, zs->u.simple->u.attributesPlusTerm);
 172         else if (zs->u.simple->which == Z_Operand_resultSetId)
 173         {
 174             wrbuf_printf(b, "@set ");
 175             yaz_encode_pqf_term(b, zs->u.simple->u.resultSetId,
 176                                 strlen(zs->u.simple->u.resultSetId));
 177         }
 178         else
 179             wrbuf_printf (b, "(unknown simple structure)");
 180     }
 181     else
 182         wrbuf_puts(b, "(unknown structure)");
 183 }
 184
 185 void yaz_rpnquery_to_wrbuf(WRBUF b, const Z_RPNQuery *rpn)
 186 {
 187     if (rpn->attributeSetId)
 188     {
 189         char oid_name_str[OID_STR_MAX];
 190         const char *oid_name = yaz_oid_to_string_buf(rpn->attributeSetId,
 191                                                      0, oid_name_str);
 192         if (oid_name)
 193             wrbuf_printf(b, "@attrset %s ", oid_name);
 194     }
 195     yaz_rpnstructure_to_wrbuf(b, rpn->RPNStructure);
 196     wrbuf_chop_right(b);
 197 }
 198
 199 void yaz_query_to_wrbuf(WRBUF b, const Z_Query *q)
 200 {
 201     assert(q);
 202     assert(b);
 203     switch (q->which)
 204     {
 205     case Z_Query_type_1:
 206     case Z_Query_type_101:
 207         wrbuf_printf(b,"RPN ");
 208         yaz_rpnquery_to_wrbuf(b, q->u.type_1);
 209         break;
 210     case Z_Query_type_2:
 211         wrbuf_printf(b, "CCL %.*s", q->u.type_2->len, q->u.type_2->buf);
 212         break;
 213     case Z_Query_type_100:
 214         wrbuf_printf(b, "Z39.58 %.*s", q->u.type_100->len,
 215                      q->u.type_100->buf);
 216         break;
 217     case Z_Query_type_104:
 218         if (q->u.type_104->which == Z_External_CQL)
 219             wrbuf_printf(b, "CQL %s", q->u.type_104->u.cql);
 220         else
 221             wrbuf_printf(b,"UNKNOWN type 104 query %d", q->u.type_104->which);
 222     }
 223 }
 224
 225 void yaz_scan_to_wrbuf(WRBUF b, const Z_AttributesPlusTerm *zapt,
 226                        const Odr_oid *attrbute_set)
 227 {
 228     /* should print attr set here */
 229     wrbuf_printf(b, "RPN ");
 230     yaz_apt_to_wrbuf(b, zapt);
 231 }
 232
 233 void wrbuf_diags(WRBUF b, int num_diagnostics, Z_DiagRec **diags)
 234 {
 235     /* we only dump the first diag - that keeps the log cleaner. */
 236     wrbuf_printf(b," ERROR ");
 237     if (diags[0]->which != Z_DiagRec_defaultFormat)
 238         wrbuf_printf(b,"(diag not in default format?)");
 239     else
 240     {
 241         Z_DefaultDiagFormat *e=diags[0]->u.defaultFormat;
 242         if (e->condition)
 243             wrbuf_printf(b, ODR_INT_PRINTF " ",*e->condition);
 244         else
 245             wrbuf_printf(b, "?? ");
 246         if ((e->which==Z_DefaultDiagFormat_v2Addinfo) && (e->u.v2Addinfo))
 247             wrbuf_printf(b,"%s ",e->u.v2Addinfo);
 248         else if ((e->which==Z_DefaultDiagFormat_v3Addinfo) && (e->u.v3Addinfo))
 249             wrbuf_printf(b,"%s ",e->u.v3Addinfo);
 250     }
 251 }
 252
 253 /*
 254  * Local variables:
 255  * c-basic-offset: 4
 256  * c-file-style: "Stroustrup"
 257  * indent-tabs-mode: nil
 258  * End:
 259  * vim: shiftwidth=4 tabstop=8 expandtab
 260  */
 261