/* Parses the action="foo" tags in JOSM change files. Obvisouly not useful from osmChange files */
static actions_t ParseAction(char **token, int tokens, struct osmdata_t *osmdata)
{
if( osmdata->filetype == FILETYPE_OSMCHANGE || osmdata->filetype == FILETYPE_PLANETDIFF )
return osmdata->action;
actions_t new_action = ACTION_NONE;
char *action = extractAttribute(token, tokens, "action");
if( action == NULL )
new_action = ACTION_CREATE;
else if( strcmp((char *)action, "modify") == 0 )
new_action = ACTION_MODIFY;
else if( strcmp((char *)action, "delete") == 0 )
new_action = ACTION_DELETE;
else
{
fprintf( stderr, "Unknown value for action: %s\n", (char*)action );
exit_nicely();
}
return new_action;
}
static void StartElement(char *name, char *line, struct osmdata_t *osmdata)
{
char *xid, *xlat, *xlon, *xk, *xv, *xrole, *xtype;
char *token[255];
int tokens = 0;
int quote = 0;
char *i;
if (osmdata->filetype == FILETYPE_NONE)
{
if (!strcmp(name, "?xml")) return;
if (!strcmp(name, "osm"))
{
osmdata->filetype = FILETYPE_OSM;
osmdata->action = ACTION_CREATE;
}
else if (!strcmp(name, "osmChange"))
{
osmdata->filetype = FILETYPE_OSMCHANGE;
osmdata->action = ACTION_NONE;
}
else if (!strcmp(name, "planetdiff"))
{
osmdata->filetype = FILETYPE_PLANETDIFF;
osmdata->action = ACTION_NONE;
}
else
{
fprintf( stderr, "Unknown XML document type: %s\n", name );
exit_nicely();
}
return;
}
tokens=1;
token[0] = line;
for (i=line; *i; i++)
{
if (quote)
{
if (*i == '"')
{
quote = 0;
}
}
else
{
if (*i == '"')
{
quote = 1;
}
else if (isspace(*i))
{
*i = 0;
token[tokens++] = i + 1;
}
}
}
if (!strcmp(name, "node")) {
xid = extractAttribute(token, tokens, "id");
xlon = extractAttribute(token, tokens, "lon");
xlat = extractAttribute(token, tokens, "lat");
assert(xid); assert(xlon); assert(xlat);
osmdata->osm_id = strtoosmid((char *)xid, NULL, 10);
osmdata->node_lon = strtod((char *)xlon, NULL);
osmdata->node_lat = strtod((char *)xlat, NULL);
osmdata->action = ParseAction(token, tokens, osmdata);
if (osmdata->osm_id > osmdata->max_node)
osmdata->max_node = osmdata->osm_id;
if (osmdata->count_node == 0) {
time(&osmdata->start_node);
}
osmdata->count_node++;
if (osmdata->count_node%10000 == 0)
printStatus(osmdata);
} else if (!strcmp(name, "tag")) {
xk = extractAttribute(token, tokens, "k");
assert(xk);
/* 'created_by' and 'source' are common and not interesting to mapnik renderer */
if (strcmp((char *)xk, "created_by") && strcmp((char *)xk, "source")) {
char *p;
xv = extractAttribute(token, tokens, "v");
assert(xv);
while ((p = strchr(xk, ' ')))
*p = '_';
addItem(&(osmdata->tags), xk, (char *)xv, 0);
}
} else if (!strcmp(name, "way")) {
xid = extractAttribute(token, tokens, "id");
assert(xid);
osmdata->osm_id = strtoosmid((char *)xid, NULL, 10);
osmdata->action = ParseAction(token, tokens, osmdata);
if (osmdata->osm_id > osmdata->max_way)
osmdata->max_way = osmdata->osm_id;
if (osmdata->count_way == 0) {
time(&osmdata->start_way);
}
osmdata->count_way++;
if (osmdata->count_way%1000 == 0)
printStatus(osmdata);
osmdata->nd_count = 0;
} else if (!strcmp(name, "nd")) {
xid = extractAttribute(token, tokens, "ref");
assert(xid);
osmdata->nds[osmdata->nd_count++] = strtoosmid( (char *)xid, NULL, 10 );
if( osmdata->nd_count >= osmdata->nd_max )
realloc_nodes(osmdata);
} else if (!strcmp(name, "relation")) {
xid = extractAttribute(token, tokens, "id");
assert(xid);
osmdata->osm_id = strtoosmid((char *)xid, NULL, 10);
osmdata->action = ParseAction(token, tokens, osmdata);
if (osmdata->osm_id > osmdata->max_rel)
osmdata->max_rel = osmdata->osm_id;
if (osmdata->count_rel == 0) {
time(&osmdata->start_rel);
}
osmdata->count_rel++;
if (osmdata->count_rel%10 == 0)
printStatus(osmdata);
osmdata->member_count = 0;
} else if (!strcmp(name, "member")) {
xrole = extractAttribute(token, tokens, "role");
assert(xrole);
xtype = extractAttribute(token, tokens, "type");
assert(xtype);
xid = extractAttribute(token, tokens, "ref");
assert(xid);
osmdata->members[osmdata->member_count].id = strtoosmid( (char *)xid, NULL, 0 );
osmdata->members[osmdata->member_count].role = strdup( (char *)xrole );
/* Currently we are only interested in 'way' members since these form polygons with holes */
if (!strcmp(xtype, "way"))
osmdata->members[osmdata->member_count].type = OSMTYPE_WAY;
else if (!strcmp(xtype, "node"))
osmdata->members[osmdata->member_count].type = OSMTYPE_NODE;
else if (!strcmp(xtype, "relation"))
osmdata->members[osmdata->member_count].type = OSMTYPE_RELATION;
osmdata->member_count++;
if( osmdata->member_count >= osmdata->member_max )
realloc_members(osmdata);
} else if (!strcmp(name, "add") ||
!strcmp(name, "create")) {
osmdata->action = ACTION_MODIFY; /* Turns all creates into modifies, makes it resiliant against inconsistant snapshots. */
} else if (!strcmp(name, "modify")) {
osmdata->action = ACTION_MODIFY;
} else if (!strcmp(name, "delete")) {
osmdata->action = ACTION_DELETE;
} else if (!strcmp(name, "bound")) {
/* ignore */
} else if (!strcmp(name, "bounds")) {
/* ignore */
} else if (!strcmp(name, "changeset")) {
/* ignore */
} else {
fprintf(stderr, "%s: Unknown element name: %s\n", __FUNCTION__, name);
}
/* Collect extra attribute information and add as tags */
if (osmdata->extra_attributes && (!strcmp(name, "node") ||
!strcmp(name, "way") ||
!strcmp(name, "relation")))
{
char *xtmp;
xtmp = extractAttribute(token, tokens, "user");
if (xtmp) {
addItem(&(osmdata->tags), "osm_user", (char *)xtmp, 0);
}
xtmp = extractAttribute(token, tokens, "uid");
if (xtmp) {
addItem(&(osmdata->tags), "osm_uid", (char *)xtmp, 0);
}
xtmp = extractAttribute(token, tokens, "version");
if (xtmp) {
addItem(&(osmdata->tags), "osm_version", (char *)xtmp, 0);
}
xtmp = extractAttribute(token, tokens, "timestamp");
if (xtmp) {
addItem(&(osmdata->tags), "osm_timestamp", (char *)xtmp, 0);
}
}
}
