private StreetTraversalPermission getPermissionsForEntity(
OSMWithTags entity, StreetTraversalPermission def) {
Map<String, String> tags = entity.getTags();
StreetTraversalPermission permission = null;
String highway = tags.get("highway");
String cycleway = tags.get("cycleway");
String access = tags.get("access");
String motorcar = tags.get("motorcar");
String bicycle = tags.get("bicycle");
String foot = tags.get("foot");
/*
* Only a few tags are examined here, because we only care about modes supported by OTP
* (wheelchairs are not of concern here)
*
* Only a few values are checked for, all other values are presumed to be permissive (=>
* This may not be perfect, but is closer to reality, since most people don't follow the
* rules perfectly ;-)
*/
if (access != null) {
if ("no".equals(access) || "license".equals(access)) {
// this can actually be overridden
permission = StreetTraversalPermission.NONE;
if (entity.doesTagAllowAccess("motorcar")) {
permission = permission.add(StreetTraversalPermission.CAR);
}
if (entity.doesTagAllowAccess("bicycle")) {
permission = permission.add(StreetTraversalPermission.BICYCLE);
}
if (entity.doesTagAllowAccess("foot")) {
permission = permission.add(StreetTraversalPermission.PEDESTRIAN);
}
} else {
permission = def;
}
} else if (motorcar != null || bicycle != null || foot != null) {
permission = def;
}
if (motorcar != null) {
if ("no".equals(motorcar) || "license".equals(motorcar)) {
permission = permission.remove(StreetTraversalPermission.CAR);
} else {
permission = permission.add(StreetTraversalPermission.CAR);
}
}
if (bicycle != null) {
if ("no".equals(bicycle) || "license".equals(bicycle)) {
permission = permission.remove(StreetTraversalPermission.BICYCLE);
} else {
permission = permission.add(StreetTraversalPermission.BICYCLE);
}
}
if (foot != null) {
if ("no".equals(foot) || "license".equals(foot)) {
permission = permission.remove(StreetTraversalPermission.PEDESTRIAN);
} else {
permission = permission.add(StreetTraversalPermission.PEDESTRIAN);
}
}
if (highway != null) {
if ("construction".equals(highway)) {
permission = StreetTraversalPermission.NONE;
}
} else {
if ("construction".equals(cycleway)) {
permission = StreetTraversalPermission.NONE;
}
}
if (permission == null) return def;
return permission;
}
