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#include "postgres.h"
#include "funcapi.h"
#include "catalog/pg_type.h"
#include "fmgr.h"
#undef DEBUG
//#define DEBUG 1
#include "pagc_api.h"
#include "pagc_std_api.h"
#include "std_pg_hash.h"
#include "parseaddress-api.h"
#ifdef PG_MODULE_MAGIC
PG_MODULE_MAGIC;
#endif
Datum standardize_address(PG_FUNCTION_ARGS);
Datum standardize_address1(PG_FUNCTION_ARGS);
static char *text2char(text *in)
{
char *out = palloc(VARSIZE(in));
memcpy(out, VARDATA(in), VARSIZE(in) - VARHDRSZ);
out[VARSIZE(in) - VARHDRSZ] = '\0';
return out;
}
/*
* The signature for standardize_address follows. The lextab, gaztab and
* rultab should not change once the reference has been standardized and
* the same tables must be used for a geocode request as were used on the
* reference set or the matching will get degregated.
*
* select * from standardize_address(
* lextab text, -- name of table of view
* gaztab text, -- name of table or view
* rultab text, -- name of table of view
* micro text, -- '123 main st'
* macro text); -- 'boston ma 01002'
*
* If you want to standardize a whole table then call it like:
*
* insert into stdaddr (...)
* select (std).* from (
* select standardize_address(
* 'lextab', 'gaztab', 'rultab', micro, marco) as std
* from table_to_standardize) as foo;
*
* The structure of the lextab and gaztab tables of views must be:
*
* seq int4
* word text
* stdword text
* token int4
*
* the rultab table or view must have columns:
*
* rule text
*/
PG_FUNCTION_INFO_V1(standardize_address);
Datum standardize_address(PG_FUNCTION_ARGS)
{
TupleDesc tuple_desc;
AttInMetadata *attinmeta;
STANDARDIZER *std;
char *lextab;
char *gaztab;
char *rultab;
char *micro;
char *macro;
Datum result;
STDADDR *stdaddr;
char **values;
int k;
HeapTuple tuple;
DBG("Start standardize_address");
lextab = text2char(PG_GETARG_TEXT_P(0));
gaztab = text2char(PG_GETARG_TEXT_P(1));
rultab = text2char(PG_GETARG_TEXT_P(2));
micro = text2char(PG_GETARG_TEXT_P(3));
macro = text2char(PG_GETARG_TEXT_P(4));
DBG("calling RelationNameGetTupleDesc");
if (get_call_result_type( fcinfo, NULL, &tuple_desc ) != TYPEFUNC_COMPOSITE ) {
elog(ERROR, "standardize_address() was called in a way that cannot accept record as a result");
}
BlessTupleDesc(tuple_desc);
attinmeta = TupleDescGetAttInMetadata(tuple_desc);
DBG("calling GetStdUsingFCInfo(fcinfo, '%s', '%s', '%s')", lextab, gaztab, rultab);
std = GetStdUsingFCInfo(fcinfo, lextab, gaztab, rultab);
if (!std)
elog(ERROR, "standardize_address() failed to create the address standardizer object!");
DBG("calling std_standardize_mm('%s', '%s')", micro, macro);
stdaddr = std_standardize_mm( std, micro, macro, 0 );
DBG("back from fetch_stdaddr");
values = (char **) palloc(16 * sizeof(char *));
for (k=0; k<16; k++) {
values[k] = NULL;
}
DBG("setup values array for natts=%d", tuple_desc->natts);
if (stdaddr) {
values[0] = stdaddr->building ? pstrdup(stdaddr->building) : NULL;
values[1] = stdaddr->house_num ? pstrdup(stdaddr->house_num) : NULL;
values[2] = stdaddr->predir ? pstrdup(stdaddr->predir) : NULL;
values[3] = stdaddr->qual ? pstrdup(stdaddr->qual) : NULL;
values[4] = stdaddr->pretype ? pstrdup(stdaddr->pretype) : NULL;
values[5] = stdaddr->name ? pstrdup(stdaddr->name) : NULL;
values[6] = stdaddr->suftype ? pstrdup(stdaddr->suftype) : NULL;
values[7] = stdaddr->sufdir ? pstrdup(stdaddr->sufdir) : NULL;
values[8] = stdaddr->ruralroute ? pstrdup(stdaddr->ruralroute) : NULL;
values[9] = stdaddr->extra ? pstrdup(stdaddr->extra) : NULL;
values[10] = stdaddr->city ? pstrdup(stdaddr->city) : NULL;
values[11] = stdaddr->state ? pstrdup(stdaddr->state) : NULL;
values[12] = stdaddr->country ? pstrdup(stdaddr->country) : NULL;
values[13] = stdaddr->postcode ? pstrdup(stdaddr->postcode) : NULL;
values[14] = stdaddr->box ? pstrdup(stdaddr->box) : NULL;
values[15] = stdaddr->unit ? pstrdup(stdaddr->unit) : NULL;
}
DBG("calling heap_form_tuple");
tuple = BuildTupleFromCStrings(attinmeta, values);
/* make the tuple into a datum */
DBG("calling HeapTupleGetDatum");
result = HeapTupleGetDatum(tuple);
/* clean up (this is not really necessary */
DBG("freeing values, nulls, and stdaddr");
stdaddr_free(stdaddr);
DBG("returning standardized result");
PG_RETURN_DATUM(result);
}
PG_FUNCTION_INFO_V1(standardize_address1);
Datum standardize_address1(PG_FUNCTION_ARGS)
{
TupleDesc tuple_desc;
AttInMetadata *attinmeta;
STANDARDIZER *std;
char *lextab;
char *gaztab;
char *rultab;
char *addr;
char *micro;
char *macro;
Datum result;
STDADDR *stdaddr;
char **values;
int k;
HeapTuple tuple;
ADDRESS *paddr;
HHash *stH;
int err;
DBG("Start standardize_address");
lextab = text2char(PG_GETARG_TEXT_P(0));
gaztab = text2char(PG_GETARG_TEXT_P(1));
rultab = text2char(PG_GETARG_TEXT_P(2));
addr = text2char(PG_GETARG_TEXT_P(3));
DBG("calling RelationNameGetTupleDesc");
if (get_call_result_type( fcinfo, NULL, &tuple_desc ) != TYPEFUNC_COMPOSITE ) {
elog(ERROR, "standardize_address() was called in a way that cannot accept record as a result");
}
BlessTupleDesc(tuple_desc);
attinmeta = TupleDescGetAttInMetadata(tuple_desc);
DBG("Got tupdesc, allocating HHash");
stH = (HHash *) palloc0(sizeof(HHash));
if (!stH) {
elog(ERROR, "standardize_address: Failed to allocate memory for hash!");
return -1;
}
DBG("going to load_state_hash");
err = load_state_hash(stH);
if (err) {
DBG("got err=%d from load_state_hash().", err);
#ifdef USE_HSEARCH
DBG("calling hdestroy_r(stH).");
hdestroy_r(stH);
#endif
elog(ERROR, "standardize_address: load_state_hash() failed(%d)!", err);
return -1;
}
DBG("calling parseaddress()");
paddr = parseaddress(stH, addr, &err);
if (!paddr) {
elog(ERROR, "parse_address: parseaddress() failed!");
return -1;
}
/* check for errors and comput length of macro string */
if (paddr->street2)
elog(ERROR, "standardize_address() can not be passed an intersection.");
if (! paddr-> address1)
elog(ERROR, "standardize_address() could not parse the address into components.");
k = 1;
if (paddr->city) k += strlen(paddr->city) + 1;
if (paddr->st) k += strlen(paddr->st) + 1;
if (paddr->zip) k += strlen(paddr->zip) + 1;
if (paddr->cc) k += strlen(paddr->cc) + 1;
/* create micro and macro from paddr */
micro = pstrdup(paddr->address1);
macro = (char *) palloc(k * sizeof(char));
*macro = '\0';
if (paddr->city) { strcat(macro, paddr->city); strcat(macro, ","); }
if (paddr->st ) { strcat(macro, paddr->st ); strcat(macro, ","); }
if (paddr->zip ) { strcat(macro, paddr->zip ); strcat(macro, ","); }
if (paddr->cc ) { strcat(macro, paddr->cc ); strcat(macro, ","); }
DBG("calling GetStdUsingFCInfo(fcinfo, '%s', '%s', '%s')", lextab, gaztab, rultab);
std = GetStdUsingFCInfo(fcinfo, lextab, gaztab, rultab);
if (!std)
elog(ERROR, "standardize_address() failed to create the address standardizer object!");
DBG("calling std_standardize_mm('%s', '%s')", micro, macro);
stdaddr = std_standardize_mm( std, micro, macro, 0 );
DBG("back from fetch_stdaddr");
values = (char **) palloc(16 * sizeof(char *));
for (k=0; k<16; k++) {
values[k] = NULL;
}
DBG("setup values array for natts=%d", tuple_desc->natts);
if (stdaddr) {
values[0] = stdaddr->building ? pstrdup(stdaddr->building) : NULL;
values[1] = stdaddr->house_num ? pstrdup(stdaddr->house_num) : NULL;
values[2] = stdaddr->predir ? pstrdup(stdaddr->predir) : NULL;
values[3] = stdaddr->qual ? pstrdup(stdaddr->qual) : NULL;
values[4] = stdaddr->pretype ? pstrdup(stdaddr->pretype) : NULL;
values[5] = stdaddr->name ? pstrdup(stdaddr->name) : NULL;
values[6] = stdaddr->suftype ? pstrdup(stdaddr->suftype) : NULL;
values[7] = stdaddr->sufdir ? pstrdup(stdaddr->sufdir) : NULL;
values[8] = stdaddr->ruralroute ? pstrdup(stdaddr->ruralroute) : NULL;
values[9] = stdaddr->extra ? pstrdup(stdaddr->extra) : NULL;
values[10] = stdaddr->city ? pstrdup(stdaddr->city) : NULL;
values[11] = stdaddr->state ? pstrdup(stdaddr->state) : NULL;
values[12] = stdaddr->country ? pstrdup(stdaddr->country) : NULL;
values[13] = stdaddr->postcode ? pstrdup(stdaddr->postcode) : NULL;
values[14] = stdaddr->box ? pstrdup(stdaddr->box) : NULL;
values[15] = stdaddr->unit ? pstrdup(stdaddr->unit) : NULL;
}
DBG("calling heap_form_tuple");
tuple = BuildTupleFromCStrings(attinmeta, values);
/* make the tuple into a datum */
DBG("calling HeapTupleGetDatum");
result = HeapTupleGetDatum(tuple);
/* clean up (this is not really necessary */
DBG("freeing values, nulls, and stdaddr");
stdaddr_free(stdaddr);
DBG("freeing values, hash, and paddr");
free_state_hash(stH);
DBG("returning standardized result");
PG_RETURN_DATUM(result);
}
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