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Retrieving keys and values

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This commit is contained in:
Eric Fischer 2015-08-20 14:27:39 -07:00
parent 224321f6c8
commit 863c9a5929
3 changed files with 51 additions and 3 deletions
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4
pool.c
View File

@ -5,7 +5,7 @@
#define POOL_WIDTH 256
static int hash(char *s) {
static int hash(const char *s) {
int h = 0;
for (; *s; s++) {
h = h * 37 + *s;
@ -57,7 +57,7 @@ struct pool_val *pool(struct pool *p, char *s, int type) {
return *v;
}
int is_pooled(struct pool *p, char *s, int type) {
int is_pooled(struct pool *p, const char *s, int type) {
int h = hash(s);
struct pool_val **v = &(p->vals[h]);

2
pool.h
View File

@ -21,4 +21,4 @@ struct pool_val *pool(struct pool *p, char *s, int type);
void pool_free(struct pool *p);
void pool_free_strings(struct pool *p);
void pool_init(struct pool *p, int n);
int is_pooled(struct pool *p, char *s, int type);
int is_pooled(struct pool *p, const char *s, int type);

48
tile-join.cc
View File

@ -1,3 +1,6 @@
// for vasprintf() on Linux
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
@ -6,6 +9,7 @@
#include <zlib.h>
#include <math.h>
#include "vector_tile.pb.h"
#include "tile.h"
extern "C" {
#include "projection.h"
@ -105,6 +109,50 @@ void handle(std::string message, int z, unsigned x, unsigned y, struct pool **fi
for (int g = 0; g < feat.geometry_size(); g++) {
outfeature->add_geometry(feat.geometry(g));
}
for (int t = 0; t + 1 < feat.tags_size(); t += 2) {
if (feat.tags(t) >= layer.keys_size() || feat.tags(t + 1) >= layer.values_size()) {
printf("out of range: %d=%d\n", feat.tags(t), feat.tags(t + 1));
continue;
}
const char *key = layer.keys(feat.tags(t)).c_str();
mapnik::vector::tile_value const &val = layer.values(feat.tags(t + 1));
char *value;
int type;
if (val.has_string_value()) {
value = strdup(val.string_value().c_str());
type = VT_STRING;
} else if (val.has_int_value()) {
asprintf(&value, "%lld", val.int_value());
type = VT_NUMBER;
} else if (val.has_double_value()) {
asprintf(&value, "%g", val.double_value());
type = VT_NUMBER;
} else if (val.has_float_value()) {
asprintf(&value, "%g", val.float_value());
type = VT_NUMBER;
} else if (val.has_bool_value()) {
asprintf(&value, "%s", val.bool_value() ? "true" : "false");
type = VT_BOOLEAN;
} else if (val.has_sint_value()) {
asprintf(&value, "%lld", val.sint_value());
type = VT_NUMBER;
} else if (val.has_uint_value()) {
asprintf(&value, "%llu", val.uint_value());
type = VT_NUMBER;
} else {
continue;
}
if (!is_pooled(file_keys[ll], key, type)) {
pool(file_keys[ll], strdup(key), type);
}
printf("%d: %s=%s\n", type, key, value);
free(value);
}
}
}
}