/*
* Class: mapnik_FeatureSet
* Method: getEnvelope
* Signature: ()Lmapnik/Box2d;
*/
JNIEXPORT jobject JNICALL Java_mapnik_FeatureSet_getEnvelope
(JNIEnv *env, jobject fsobj)
{
PREAMBLE;
mapnik::feature_ptr* fp=LOAD_FEATURE_POINTER(fsobj);
if (!fp) {
throw_runtime_exception(env, "No feature loaded");
return 0;
}
return box2dFromNative(env, (*fp)->envelope());
TRAILER(0);
}
/*
* Class: mapnik_FeatureSet
* Method: getId
* Signature: ()I
*/
JNIEXPORT jint JNICALL Java_mapnik_FeatureSet_getId
(JNIEnv *env, jobject fsobj)
{
PREAMBLE;
mapnik::feature_ptr* fp=LOAD_FEATURE_POINTER(fsobj);
if (!fp) {
throw_runtime_exception(env, "No feature loaded");
return 0;
}
return (*fp)->id();
TRAILER(0);
}
/*
* Class: mapnik_FeatureSet
* Method: getProperty
* Signature: (Ljava/lang/String;)Ljava/lang/Object;
*/
JNIEXPORT jobject JNICALL Java_mapnik_FeatureSet_getProperty
(JNIEnv *env, jobject fsobj, jstring namej)
{
PREAMBLE;
mapnik::feature_ptr* fp=LOAD_FEATURE_POINTER(fsobj);
if (!fp) {
throw_runtime_exception(env, "No feature loaded");
return 0;
}
refjavastring name(env,namej);
// Convert the value
mapnik::value_type const& value= (*fp)->get(name.stringz);
return mapnik::value_type::visit(value, value_to_java(env));
TRAILER(0);
}
/*
* Class: mapnik_FeatureSet
* Method: getProperty
* Signature: (Ljava/lang/String;)Ljava/lang/Object;
*/
JNIEXPORT jobject JNICALL Java_mapnik_FeatureSet_getProperty
(JNIEnv *env, jobject fsobj, jstring namej)
{
PREAMBLE;
mapnik::feature_ptr* fp=LOAD_FEATURE_POINTER(fsobj);
if (!fp) {
throw_runtime_exception(env, "No feature loaded");
return 0;
}
refjavastring name(env,namej);
std::map<std::string,mapnik::value>::iterator iter=(*fp)->props().find(name.stringz);
if (iter==(*fp)->end()) return 0;
// Convert the value
mapnik::value_base const& value=iter->second.base();
return boost::apply_visitor(value_to_java(env), value);
TRAILER(0);
}
/*
* Class: mapnik_FeatureSet
* Method: getPropertyNames
* Signature: ()Ljava/util/Set;
*/
JNIEXPORT jobject JNICALL Java_mapnik_FeatureSet_getPropertyNames
(JNIEnv *env, jobject fsobj)
{
PREAMBLE;
mapnik::feature_ptr* fp=LOAD_FEATURE_POINTER(fsobj);
if (!fp) {
throw_runtime_exception(env, "No feature loaded");
return 0;
}
jobject ret=env->NewObject(CLASS_HASHSET, CTOR_HASHSET);
for (std::map<std::string,mapnik::value>::iterator iter=(*fp)->begin(); iter!=(*fp)->end(); iter++) {
std::string const& name(iter->first);
env->CallBooleanMethod(ret, METHOD_HASHSET_ADD, env->NewStringUTF(name.c_str()));
}
return ret;
TRAILER(0);
}
/*
* Class: mapnik_FeatureSet
* Method: _loadGeometries
* Signature: ()[Lmapnik/Geometry;
*/
JNIEXPORT jobjectArray JNICALL Java_mapnik_FeatureSet__1loadGeometries
(JNIEnv *env, jobject fsobj)
{
PREAMBLE;
mapnik::feature_ptr* fp=LOAD_FEATURE_POINTER(fsobj);
if (!fp) {
throw_runtime_exception(env, "No feature loaded");
return 0;
}
unsigned count=(*fp)->num_geometries();
jobjectArray ret=env->NewObjectArray(count, CLASS_GEOMETRY, (jobject)0);
for (unsigned index=0; index<count; index++) {
mapnik::geometry_type &g((*fp)->get_geometry(index));
jobject gobject=env->NewObject(CLASS_GEOMETRY, CTOR_NATIVEOBJECT);
env->SetLongField(gobject, FIELD_PTR, FROM_POINTER(&g));
env->SetObjectArrayElement(ret, index, gobject);
}
return ret;
TRAILER(0);
}
/*
* Class: mapnik_FeatureSet
* Method: _next
* Signature: ()Z
*/
JNIEXPORT jboolean JNICALL Java_mapnik_FeatureSet__1next
(JNIEnv *env, jobject fsobj)
{
PREAMBLE;
mapnik::featureset_ptr* fsp=LOAD_FEATURESET_POINTER(fsobj);
mapnik::feature_ptr* fp=LOAD_FEATURE_POINTER(fsobj);
if (fp) delete fp;
mapnik::feature_ptr next=(*fsp)->next();
if (!next) {
// End
env->SetLongField(fsobj, FIELD_FEATURESET_FEATURE_PTR, 0);
return false;
} else {
// Another
fp=new mapnik::feature_ptr(next);
env->SetLongField(fsobj, FIELD_FEATURESET_FEATURE_PTR, FROM_POINTER(fp));
return true;
}
TRAILER(false);
}
/*
* Class: mapnik_FeatureSet
* Method: _loadGeometries
* Signature: ()[Lmapnik/Geometry;
*/
JNIEXPORT jobjectArray JNICALL Java_mapnik_FeatureSet__1loadGeometries
(JNIEnv *env, jobject fsobj)
{
PREAMBLE;
mapnik::feature_ptr* fp=LOAD_FEATURE_POINTER(fsobj);
if (!fp) {
throw_runtime_exception(env, "No feature loaded");
return 0;
}
// Mapnik 3.x only holds one geometry<> per feature_impl.
// (In Mapnik 2.x this used to be a variable-length vector of geometries.)
unsigned count=1;
jobjectArray ret=env->NewObjectArray(count, CLASS_GEOMETRY, (jobject)0);
for (unsigned index=0; index<count; index++) {
mapnik::geometry::geometry<double> const &g((*fp)->get_geometry());
jobject gobject=env->NewObject(CLASS_GEOMETRY, CTOR_NATIVEOBJECT);
env->SetLongField(gobject, FIELD_PTR, FROM_POINTER(&g));
env->SetObjectArrayElement(ret, index, gobject);
}
return ret;
TRAILER(0);
}