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author | Ivo van Dongen <info@ivovandongen.nl> | 2017-03-22 15:05:03 +0200 |
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committer | Ivo van Dongen <ivovandongen@users.noreply.github.com> | 2017-03-28 15:44:22 +0300 |
commit | fa7489fb7ea8ec85cb746e0bc497518d72c638b9 (patch) | |
tree | 477c100890466ca0093af9e101554dca530f9ae8 /platform/android/src/geojson/feature_collection.cpp | |
parent | f70f604e5b99062a24764716ccdeda64c36320be (diff) | |
download | qtlocation-mapboxgl-fa7489fb7ea8ec85cb746e0bc497518d72c638b9.tar.gz |
[android] geojson conversion optimisation
Diffstat (limited to 'platform/android/src/geojson/feature_collection.cpp')
-rw-r--r-- | platform/android/src/geojson/feature_collection.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/platform/android/src/geojson/feature_collection.cpp b/platform/android/src/geojson/feature_collection.cpp new file mode 100644 index 0000000000..2f156532ae --- /dev/null +++ b/platform/android/src/geojson/feature_collection.cpp @@ -0,0 +1,40 @@ +#include "feature_collection.hpp" + +#include "feature.hpp" + +namespace mbgl { +namespace android { +namespace geojson { + +mbgl::FeatureCollection FeatureCollection::convert(jni::JNIEnv& env, jni::Object<FeatureCollection> jCollection) { + auto jFeatureList = FeatureCollection::getFeatures(env, jCollection); + auto jFeatures = java::util::List::toArray<Feature>(env, jFeatureList); + auto size = size_t(jFeatures.Length(env)); + + auto collection = mbgl::FeatureCollection(); + collection.reserve(size); + + for (size_t i = 0; i < size; i++) { + auto jFeature = jFeatures.Get(env, i); + collection.push_back(Feature::convert(env, jFeature)); + jni::DeleteLocalRef(env, jFeature); + } + + return collection; +} + +jni::Object<java::util::List> FeatureCollection::getFeatures(jni::JNIEnv& env, jni::Object<FeatureCollection> jCollection) { + static auto method = FeatureCollection::javaClass.GetMethod<jni::Object<java::util::List> ()>(env, "getFeatures"); + return jCollection.Call(env, method); +} + +void FeatureCollection::registerNative(jni::JNIEnv& env) { + // Lookup the class + javaClass = *jni::Class<FeatureCollection>::Find(env).NewGlobalRef(env).release(); +} + +jni::Class<FeatureCollection> FeatureCollection::javaClass; + +} // namespace geojson +} // namespace android +} // namespace mbgl
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