/*
- * Copyright (c) 1998-2001, Index Data.
+ * Copyright (c) 1998-2003, Index Data.
* See the file LICENSE for details.
*
- * $Id: yaz-z-query.cpp,v 1.11 2002-10-09 12:50:26 adam Exp $
+ * $Id: yaz-z-query.cpp,v 1.17 2005-06-25 15:53:19 adam Exp $
*/
#include <yaz++/z-query.h>
#include <yaz/pquery.h>
+using namespace yazpp_1;
+
Yaz_Z_Query::Yaz_Z_Query()
{
odr_encode = odr_createmem (ODR_ENCODE);
int Yaz_Z_Query::set_rpn (const char *rpn)
{
- buf = 0;
+ m_buf = 0;
odr_reset (odr_encode);
Z_Query *query = (Z_Query*) odr_malloc (odr_encode, sizeof(*query));
query->which = Z_Query_type_1;
query->u.type_1 = p_query_rpn (odr_encode, PROTO_Z3950, rpn);
if (!query->u.type_1)
- return -1;
+ return -1;
if (!z_Query (odr_encode, &query, 0, 0))
- return -1;
+ return -1;
// z_Query(odr_print, &query, 0, 0);
- buf = odr_getbuf (odr_encode, &len, 0);
- return len;
+ m_buf = odr_getbuf (odr_encode, &m_len, 0);
+ return m_len;
}
void Yaz_Z_Query::set_Z_Query(Z_Query *z_query)
{
- buf = 0;
+ m_buf = 0;
odr_reset (odr_encode);
if (!z_Query (odr_encode, &z_query, 0, 0))
- return;
- buf = odr_getbuf (odr_encode, &len, 0);
+ return;
+ m_buf = odr_getbuf (odr_encode, &m_len, 0);
}
Yaz_Z_Query::~Yaz_Z_Query()
Z_Query *Yaz_Z_Query::get_Z_Query ()
{
Z_Query *query;
- if (!buf)
- return 0;
- odr_setbuf (odr_decode, buf, len, 0);
+ if (!m_buf)
+ return 0;
+ odr_reset(odr_decode);
+ odr_setbuf(odr_decode, m_buf, m_len, 0);
if (!z_Query(odr_decode, &query, 0, 0))
- return 0;
+ return 0;
return query;
}
void Yaz_Z_Query::print(char *str, int len)
{
-
+ Z_Query *query;
+ *str = 0;
+ if (!m_buf)
+ return;
+ odr_setbuf (odr_decode, m_buf, m_len, 0);
+ if (!z_Query(odr_decode, &query, 0, 0))
+ return;
+ WRBUF wbuf = zquery2pquery(query);
+ if (wbuf)
+ {
+ if (wrbuf_len(wbuf) > len-1)
+ {
+ memcpy(str, wrbuf_buf(wbuf), len-1);
+ str[len-1] = '\0';
+ }
+ else
+ strcpy(str, wrbuf_buf(wbuf));
+ wrbuf_free(wbuf,1);
+ }
+ odr_reset(odr_decode);
}
int Yaz_Z_Query::match(Yaz_Z_Query *other)
{
- if (len != other->len)
- return 0;
- if (!buf || !other->buf)
- return 0;
- if (memcmp(buf, other->buf, len))
- return 0;
+ if (m_len != other->m_len)
+ return 0;
+ if (!m_buf || !other->m_buf)
+ return 0;
+ if (memcmp(m_buf, other->m_buf, m_len))
+ return 0;
return 1;
}
+
+void Yaz_Z_Query::oid2str(Odr_oid *o, WRBUF buf)
+{
+ for (; *o >= 0; o++) {
+ char ibuf[16];
+ sprintf(ibuf, "%d", *o);
+ wrbuf_puts(buf, ibuf);
+ if (o[1] > 0)
+ wrbuf_putc(buf, '.');
+ }
+}
+
+void Yaz_Z_Query::pr_term(WRBUF wbuf, char *buf, int len)
+{
+ int i;
+ wrbuf_putc(wbuf, '"');
+ for (i = 0; i<len; i++)
+ {
+ int ch = buf[i];
+ if (ch == '"')
+ wrbuf_putc(wbuf, '\\');
+ wrbuf_putc(wbuf, ch);
+ }
+ wrbuf_puts(wbuf, "\" ");
+}
+
+int Yaz_Z_Query::rpn2pquery(Z_RPNStructure *s, WRBUF buf)
+{
+ if (s->which == Z_RPNStructure_simple)
+ {
+ Z_Operand *o = s->u.simple;
+
+ if (o->which == Z_Operand_APT)
+ {
+ Z_AttributesPlusTerm *at = s->u.simple->u.attributesPlusTerm;
+ if (at->attributes) {
+ int i;
+ for (i = 0; i < at->attributes->num_attributes; i++) {
+ wrbuf_puts(buf, "@attr ");
+ if (at->attributes->attributes[i]->attributeSet) {
+ oid2str(at->attributes->attributes[i]->attributeSet, buf);
+ wrbuf_putc(buf, ' ');
+ }
+ wrbuf_printf(buf, "%d=", *at->attributes->attributes[i]->attributeType);
+ wrbuf_printf(buf, "%d ", *at->attributes->attributes[i]->value.numeric);
+ }
+ }
+ if (at->term->which == Z_Term_general)
+ {
+ pr_term(buf, (char*) at->term->u.general->buf,
+ at->term->u.general->len);
+ }
+ else if (at->term->which == Z_Term_characterString)
+ {
+ wrbuf_puts(buf, "@term string ");
+ pr_term(buf, at->term->u.characterString,
+ strlen(at->term->u.characterString));
+
+ }
+ }
+ else if (o->which == Z_Operand_resultSetId)
+ {
+ wrbuf_printf(buf, "@set %s ", o->u.resultSetId);
+ }
+ }
+ else if (s->which == Z_RPNStructure_complex)
+ {
+ Z_Complex *c = s->u.complex;
+
+ switch (c->roperator->which) {
+ case Z_Operator_and: wrbuf_puts(buf, "@and "); break;
+ case Z_Operator_or: wrbuf_puts(buf, "@or "); break;
+ case Z_Operator_and_not: wrbuf_puts(buf, "@not "); break;
+ case Z_Operator_prox: wrbuf_puts(buf, "@prox "); break;
+ default: wrbuf_puts(buf, "@unknown ");
+ }
+ if (!rpn2pquery(c->s1, buf))
+ return 0;
+ if (!rpn2pquery(c->s2, buf))
+ return 0;
+ }
+ return 1;
+}
+
+WRBUF Yaz_Z_Query::zquery2pquery(Z_Query *q)
+{
+ if (q->which != Z_Query_type_1 && q->which != Z_Query_type_101)
+ return 0;
+ WRBUF buf = wrbuf_alloc();
+ if (q->u.type_1->attributeSetId) {
+ /* Output attribute set ID */
+ wrbuf_puts(buf, "@attrset ");
+ oid2str(q->u.type_1->attributeSetId, buf);
+ wrbuf_putc(buf, ' ');
+ }
+ return rpn2pquery(q->u.type_1->RPNStructure, buf) ? buf : 0;
+}
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+
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