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Use the standard JSON writer when writing metadata.json

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This commit is contained in:
Eric Fischer 2018-03-16 15:35:26 -07:00
parent ebb0334ef0
commit 3c827b1d68
6 changed files with 46 additions and 64 deletions
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51
mbtiles.cpp
View File

@ -88,38 +88,6 @@ void mbtiles_write_tile(sqlite3 *outdb, int z, int tx, int ty, const char *data,
}
}
static void quote(std::string &buf, std::string const &s) {
for (size_t i = 0; i < s.size(); i++) {
unsigned char ch = s[i];
if (ch == '\\' || ch == '\"') {
buf.push_back('\\');
buf.push_back(ch);
} else if (ch < ' ') {
char tmp[7];
sprintf(tmp, "\\u%04x", ch);
buf.append(std::string(tmp));
} else {
buf.push_back(ch);
}
}
}
void aprintf(std::string *buf, const char *format, ...) {
va_list ap;
char *tmp;
va_start(ap, format);
if (vasprintf(&tmp, format, ap) < 0) {
fprintf(stderr, "memory allocation failure\n");
exit(EXIT_FAILURE);
}
va_end(ap);
buf->append(tmp, strlen(tmp));
free(tmp);
}
bool type_and_string::operator<(const type_and_string &o) const {
if (string < o.string) {
return true;
@ -505,7 +473,10 @@ void mbtiles_write_metadata(sqlite3 *outdb, const char *outdir, const char *fnam
exit(EXIT_FAILURE);
}
fprintf(fp, "{\n");
json_writer state(fp);
state.json_write_hash();
state.json_write_newline();
sqlite3_stmt *stmt;
bool first = true;
@ -520,19 +491,17 @@ void mbtiles_write_metadata(sqlite3 *outdb, const char *outdir, const char *fnam
exit(EXIT_FAILURE);
}
quote(key, k);
quote(value, v);
if (!first) {
fprintf(fp, ",\n");
}
fprintf(fp, " \"%s\": \"%s\"", key.c_str(), value.c_str());
state.json_comma_newline();
state.json_write_string(k);
state.json_write_string(v);
first = false;
}
sqlite3_finalize(stmt);
}
fprintf(fp, "\n}\n");
state.json_write_newline();
state.json_end_hash();
state.json_write_newline();
fclose(fp);
}
}

2
mbtiles.hpp
View File

@ -44,8 +44,6 @@ void mbtiles_write_metadata(sqlite3 *outdb, const char *outdir, const char *fnam
void mbtiles_close(sqlite3 *outdb, const char *pgm);
void aprintf(std::string *buf, const char *format, ...);
std::map<std::string, layermap_entry> merge_layermaps(std::vector<std::map<std::string, layermap_entry> > const &maps);
std::map<std::string, layermap_entry> merge_layermaps(std::vector<std::map<std::string, layermap_entry> > const &maps, bool trunc);

15
tile-join.cpp
View File

@ -47,6 +47,21 @@ struct stats {
double minlat, minlon, maxlat, maxlon;
};
void aprintf(std::string *buf, const char *format, ...) {
va_list ap;
char *tmp;
va_start(ap, format);
if (vasprintf(&tmp, format, ap) < 0) {
fprintf(stderr, "memory allocation failure\n");
exit(EXIT_FAILURE);
}
va_end(ap);
buf->append(tmp, strlen(tmp));
free(tmp);
}
void handle(std::string message, int z, unsigned x, unsigned y, std::map<std::string, layermap_entry> &layermap, std::vector<std::string> &header, std::map<std::string, std::vector<std::string>> &mapping, std::set<std::string> &exclude, std::set<std::string> &keep_layers, std::set<std::string> &remove_layers, int ifmatched, mvt_tile &outtile, json_object *filter) {
mvt_tile tile;
int features_added = 0;