postgis/loader/shp2pgsql-core.h
2010-09-21 23:11:35 +00:00

202 lines
4.3 KiB
C

/**********************************************************************
* $Id$
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.refractions.net
* Copyright 2001-2003 Refractions Research Inc.
* Copyright 2009 Paul Ramsey <pramsey@cleverelephant.ca>
* Copyright 2009 Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU General Public Licence. See the COPYING file.
*
**********************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <iconv.h>
#include "shapefil.h"
#include "shpcommon.h"
#include "getopt.h"
#include "../liblwgeom/liblwgeom.h"
#define RCSID "$Id$"
/*
* Loader policy constants
*/
#define POLICY_NULL_ABORT 0x0
#define POLICY_NULL_INSERT 0x1
#define POLICY_NULL_SKIP 0x2
/*
* Error message handling
*/
#define SHPLOADERMSGLEN 1024
#define SHPLOADEROK -1
#define SHPLOADERERR 0
#define SHPLOADERWARN 1
#define SHPLOADERRECDELETED 2
#define SHPLOADERRECISNULL 3
/*
* Shapefile (dbf) field name are at most 10chars + 1 NULL.
* Postgresql field names are at most 63 bytes + 1 NULL.
*/
#define MAXFIELDNAMELEN 64
#define MAXVALUELEN 1024
/*
* Default geometry column name
*/
#define GEOMETRY_DEFAULT "geom"
#define GEOGRAPHY_DEFAULT "geog"
/*
* Default character encoding
*/
#define ENCODING_DEFAULT "UTF-8"
/*
* Structure to hold the loader configuration options
*/
typedef struct shp_loader_config
{
/* load mode: c = create, d = delete, a = append, p = prepare */
char opt;
/* table to load into */
char *table;
/* schema to load into */
char *schema;
/* geometry column name to use */
char *geom;
/* the shape file (without the .shp extension) */
char *shp_file;
/* 0 = SQL inserts, 1 = dump */
int dump_format;
/* 0 = MULTIPOLYGON/MULTILINESTRING, 1 = force to POLYGON/LINESTRING */
int simple_geometries;
/* 0 = geometry, 1 = geography */
int geography;
/* 0 = columnname, 1 = "columnName" */
int quoteidentifiers;
/* 0 = allow int8 fields, 1 = no int8 fields */
int forceint4;
/* 0 = no index, 1 = create index after load */
int createindex;
/* 0 = load DBF file only, 1 = load everything */
int readshape;
/* iconv encoding name */
char *encoding;
/* how to handle nulls */
int null_policy;
/* SRID specified */
int sr_id;
/* 0 = new style (PostGIS 1.x) geometries, 1 = old style (PostGIS 0.9.x) geometries */
int hwgeom;
} SHPLOADERCONFIG;
/*
* Structure to holder the current loader state
*/
typedef struct shp_loader_state
{
/* Configuration for this state */
SHPLOADERCONFIG *config;
/* Shapefile handle */
SHPHandle hSHPHandle;
/* Shapefile type */
int shpfiletype;
/* Data file handle */
DBFHandle hDBFHandle;
/* Number of rows in the shapefile */
int num_entities;
/* Number of fields in the shapefile */
int num_fields;
/* Number of rows in the DBF file */
int num_records;
/* Pointer to an array of field names */
char **field_names;
/* Field type */
DBFFieldType *types;
/* Arrays of field widths and precisions */
int *widths;
int *precisions;
/* String containing colume name list in the form "(col1, col2, col3 ... , colN)" */
char *col_names;
/* String containing the PostGIS geometry type, e.g. POINT, POLYGON etc. */
char *pgtype;
/* PostGIS geometry type (numeric version) */
uint32 wkbtype;
/* Number of dimensions to output */
int pgdims;
/* 0 = simple geometry, 1 = multi geometry */
int istypeM;
/* Last (error) message */
char message[SHPLOADERMSGLEN];
} SHPLOADERSTATE;
/* Externally accessible functions */
void strtolower(char *s);
void vasbappend(stringbuffer_t *sb, char *fmt, ... );
void set_config_defaults(SHPLOADERCONFIG *config);
SHPLOADERSTATE *ShpLoaderCreate(SHPLOADERCONFIG *config);
int ShpLoaderOpenShape(SHPLOADERSTATE *state);
int ShpLoaderGetSQLHeader(SHPLOADERSTATE *state, char **strheader);
int ShpLoaderGetSQLCopyStatement(SHPLOADERSTATE *state, char **strheader);
int ShpLoaderGetRecordCount(SHPLOADERSTATE *state);
int ShpLoaderGenerateSQLRowStatement(SHPLOADERSTATE *state, int item, char **strrecord);
int ShpLoaderGetSQLFooter(SHPLOADERSTATE *state, char **strfooter);
void ShpLoaderDestroy(SHPLOADERSTATE *state);