Merge "Refactor GNSS JNI: GnssConfiguration"
diff --git a/services/core/jni/Android.bp b/services/core/jni/Android.bp
index 30f6fa6..d6a56ba 100644
--- a/services/core/jni/Android.bp
+++ b/services/core/jni/Android.bp
@@ -21,6 +21,7 @@
         "BroadcastRadio/TunerCallback.cpp",
         "BroadcastRadio/convert.cpp",
         "BroadcastRadio/regions.cpp",
+        "gnss/GnssConfiguration.cpp",
         "stats/PowerStatsPuller.cpp",
         "stats/SubsystemSleepStatePuller.cpp",
         "com_android_server_adb_AdbDebuggingManager.cpp",
diff --git a/services/core/jni/com_android_server_location_GnssLocationProvider.cpp b/services/core/jni/com_android_server_location_GnssLocationProvider.cpp
index 31b9ad6..e9d048a 100644
--- a/services/core/jni/com_android_server_location_GnssLocationProvider.cpp
+++ b/services/core/jni/com_android_server_location_GnssLocationProvider.cpp
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#define LOG_TAG "GnssLocationProvider"
-
+// Define LOG_TAG and LOG_NDEBUG before <log/log.h> to overwrite the default values.
+#define LOG_TAG "GnssLocationProviderJni"
 #define LOG_NDEBUG 0
 
 #include <android/hardware/gnss/1.0/IGnss.h>
@@ -39,6 +39,7 @@
 #include <nativehelper/JNIHelp.h>
 #include "android_runtime/AndroidRuntime.h"
 #include "android_runtime/Log.h"
+#include "gnss/GnssConfiguration.h"
 #include "hardware_legacy/power.h"
 #include "jni.h"
 #include "utils/Log.h"
@@ -59,7 +60,6 @@
 static jclass class_location;
 static jclass class_gnssNavigationMessage;
 static jclass class_gnssClock;
-static jclass class_gnssConfiguration_halInterfaceVersion;
 static jclass class_gnssAntennaInfoBuilder;
 static jclass class_phaseCenterOffset;
 static jclass class_sphericalCorrections;
@@ -125,7 +125,6 @@
 static jmethodID method_gnssNavigationMessageCtor;
 static jmethodID method_gnssClockCtor;
 static jmethodID method_gnssMeasurementCtor;
-static jmethodID method_halInterfaceVersionCtor;
 static jmethodID method_gnssAntennaInfoBuilderCtor;
 static jmethodID method_phaseCenterOffsetCtor;
 static jmethodID method_sphericalCorrectionsCtor;
@@ -149,6 +148,7 @@
 using android::String16;
 using android::wp;
 using android::binder::Status;
+using android::gnss::GnssConfigurationInterface;
 
 using android::hardware::Return;
 using android::hardware::Void;
@@ -192,10 +192,6 @@
 using IGnssCallback_V1_0 = android::hardware::gnss::V1_0::IGnssCallback;
 using IGnssCallback_V2_0 = android::hardware::gnss::V2_0::IGnssCallback;
 using IGnssCallback_V2_1 = android::hardware::gnss::V2_1::IGnssCallback;
-using IGnssConfiguration_V1_0 = android::hardware::gnss::V1_0::IGnssConfiguration;
-using IGnssConfiguration_V1_1 = android::hardware::gnss::V1_1::IGnssConfiguration;
-using IGnssConfiguration_V2_0 = android::hardware::gnss::V2_0::IGnssConfiguration;
-using IGnssConfiguration_V2_1 = android::hardware::gnss::V2_1::IGnssConfiguration;
 using IGnssDebug_V1_0 = android::hardware::gnss::V1_0::IGnssDebug;
 using IGnssDebug_V2_0 = android::hardware::gnss::V2_0::IGnssDebug;
 using IGnssAntennaInfo = android::hardware::gnss::V2_1::IGnssAntennaInfo;
@@ -269,11 +265,6 @@
 sp<IGnssBatching_V2_0> gnssBatchingIface_V2_0 = nullptr;
 sp<IGnssDebug_V1_0> gnssDebugIface = nullptr;
 sp<IGnssDebug_V2_0> gnssDebugIface_V2_0 = nullptr;
-sp<IGnssConfigurationAidl> gnssConfigurationAidlIface = nullptr;
-sp<IGnssConfiguration_V1_0> gnssConfigurationIface = nullptr;
-sp<IGnssConfiguration_V1_1> gnssConfigurationIface_V1_1 = nullptr;
-sp<IGnssConfiguration_V2_0> gnssConfigurationIface_V2_0 = nullptr;
-sp<IGnssConfiguration_V2_1> gnssConfigurationIface_V2_1 = nullptr;
 sp<IGnssNi> gnssNiIface = nullptr;
 sp<IGnssMeasurement_V1_0> gnssMeasurementIface = nullptr;
 sp<IGnssMeasurement_V1_1> gnssMeasurementIface_V1_1 = nullptr;
@@ -285,6 +276,8 @@
 sp<IGnssVisibilityControl> gnssVisibilityControlIface = nullptr;
 sp<IGnssAntennaInfo> gnssAntennaInfoIface = nullptr;
 
+std::unique_ptr<GnssConfigurationInterface> gnssConfigurationIface = nullptr;
+
 #define WAKE_LOCK_NAME  "GPS"
 
 namespace android {
@@ -467,12 +460,6 @@
     return JNI_TRUE;
 }
 
-static jobject createHalInterfaceVersionJavaObject(JNIEnv* env, jint major, jint minor) {
-    jobject version = env->NewObject(class_gnssConfiguration_halInterfaceVersion,
-            method_halInterfaceVersionCtor, major, minor);
-    return version;
-}
-
 struct ScopedJniString {
     ScopedJniString(JNIEnv* env, jstring javaString) : mEnv(env), mJavaString(javaString) {
         mNativeString = mEnv->GetStringUTFChars(mJavaString, nullptr);
@@ -2159,13 +2146,6 @@
     class_gnssClock = (jclass) env->NewGlobalRef(gnssClockClass);
     method_gnssClockCtor = env->GetMethodID(class_gnssClock, "<init>", "()V");
 
-    jclass gnssConfiguration_halInterfaceVersionClass = env->FindClass(
-            "com/android/server/location/gnss/GnssConfiguration$HalInterfaceVersion");
-    class_gnssConfiguration_halInterfaceVersion =
-            (jclass) env->NewGlobalRef(gnssConfiguration_halInterfaceVersionClass);
-    method_halInterfaceVersionCtor =
-            env->GetMethodID(class_gnssConfiguration_halInterfaceVersion, "<init>", "(II)V");
-
     jclass arrayListClass = env->FindClass("java/util/ArrayList");
     class_arrayList = (jclass)env->NewGlobalRef(arrayListClass);
     method_arrayListCtor = env->GetMethodID(class_arrayList, "<init>", "()V");
@@ -2173,6 +2153,8 @@
 
     jclass doubleArrayClass = env->FindClass("[D");
     class_doubleArray = (jclass)env->NewGlobalRef(doubleArrayClass);
+
+    gnss::GnssConfiguration_class_init_once(env);
 }
 
 /* Initialization needed at system boot and whenever GNSS service dies. */
@@ -2373,44 +2355,38 @@
     if (gnssHalAidl != nullptr) {
         sp<IGnssConfigurationAidl> gnssConfigurationAidl;
         auto status = gnssHalAidl->getExtensionGnssConfiguration(&gnssConfigurationAidl);
-        if (status.isOk()) {
-            gnssConfigurationAidlIface = gnssConfigurationAidl;
-        } else {
-            ALOGD("Unable to get a handle to GnssConfiguration AIDL interface.");
+        if (checkAidlStatus(status,
+                            "Unable to get a handle to GnssConfiguration AIDL interface.")) {
+            gnssConfigurationIface =
+                    std::make_unique<android::gnss::GnssConfiguration>(gnssConfigurationAidl);
         }
     } else if (gnssHal_V2_1 != nullptr) {
         auto gnssConfiguration = gnssHal_V2_1->getExtensionGnssConfiguration_2_1();
-        if (!gnssConfiguration.isOk()) {
-            ALOGD("Unable to get a handle to GnssConfiguration_V2_1");
-        } else {
-            gnssConfigurationIface_V2_1 = gnssConfiguration;
-            gnssConfigurationIface_V2_0 = gnssConfigurationIface_V2_1;
-            gnssConfigurationIface_V1_1 = gnssConfigurationIface_V2_1;
-            gnssConfigurationIface = gnssConfigurationIface_V2_1;
+        if (checkHidlReturn(gnssConfiguration,
+                            "Unable to get a handle to GnssConfiguration_V2_1")) {
+            gnssConfigurationIface =
+                    std::make_unique<android::gnss::GnssConfiguration_V2_1>(gnssConfiguration);
         }
     } else if (gnssHal_V2_0 != nullptr) {
         auto gnssConfiguration = gnssHal_V2_0->getExtensionGnssConfiguration_2_0();
-        if (!gnssConfiguration.isOk()) {
-            ALOGD("Unable to get a handle to GnssConfiguration_V2_0");
-        } else {
-            gnssConfigurationIface_V2_0 = gnssConfiguration;
-            gnssConfigurationIface_V1_1 = gnssConfigurationIface_V2_0;
-            gnssConfigurationIface = gnssConfigurationIface_V2_0;
+        if (checkHidlReturn(gnssConfiguration,
+                            "Unable to get a handle to GnssConfiguration_V2_0")) {
+            gnssConfigurationIface =
+                    std::make_unique<android::gnss::GnssConfiguration_V2_0>(gnssConfiguration);
         }
     } else if (gnssHal_V1_1 != nullptr) {
         auto gnssConfiguration = gnssHal_V1_1->getExtensionGnssConfiguration_1_1();
-        if (!gnssConfiguration.isOk()) {
-            ALOGD("Unable to get a handle to GnssConfiguration_V1_1");
-        } else {
-            gnssConfigurationIface_V1_1 = gnssConfiguration;
-            gnssConfigurationIface = gnssConfigurationIface_V1_1;
+        if (checkHidlReturn(gnssConfiguration,
+                            "Unable to get a handle to GnssConfiguration_V1_1")) {
+            gnssConfigurationIface =
+                    std::make_unique<android::gnss::GnssConfiguration_V1_1>(gnssConfiguration);
         }
     } else {
-        auto gnssConfiguration_V1_0 = gnssHal->getExtensionGnssConfiguration();
-        if (!gnssConfiguration_V1_0.isOk()) {
-            ALOGD("Unable to get a handle to GnssConfiguration");
-        } else {
-            gnssConfigurationIface = gnssConfiguration_V1_0;
+        auto gnssConfiguration = gnssHal->getExtensionGnssConfiguration();
+        if (checkHidlReturn(gnssConfiguration,
+                            "Unable to get a handle to GnssConfiguration_V1_0")) {
+            gnssConfigurationIface =
+                    std::make_unique<android::gnss::GnssConfiguration_V1_0>(gnssConfiguration);
         }
     }
 
@@ -2466,25 +2442,10 @@
 
 static jobject android_location_GnssConfiguration_get_gnss_configuration_version(
         JNIEnv* env, jclass /* jclazz */) {
-    jint major, minor;
-    if (gnssConfigurationIface_V2_1 != nullptr) {
-        major = 2;
-        minor = 1;
-    }
-    else if (gnssConfigurationIface_V2_0 != nullptr) {
-        major = 2;
-        minor = 0;
-    } else if (gnssConfigurationIface_V1_1 != nullptr) {
-        major = 1;
-        minor = 1;
-    } else if (gnssConfigurationIface != nullptr) {
-        major = 1;
-        minor = 0;
-    } else {
+    if (gnssConfigurationIface == nullptr) {
         return nullptr;
     }
-
-    return createHalInterfaceVersionJavaObject(env, major, minor);
+    return gnssConfigurationIface->getVersion(env);
 }
 
 /* Initialization needed each time the GPS service is shutdown. */
@@ -3486,203 +3447,89 @@
 static jboolean android_location_GnssConfiguration_set_emergency_supl_pdn(JNIEnv*,
                                                                           jobject,
                                                                           jint emergencySuplPdn) {
-    if (gnssConfigurationIface == nullptr && gnssConfigurationAidlIface == nullptr) {
+    if (gnssConfigurationIface == nullptr) {
         ALOGE("%s: IGnssConfiguration interface not available.", __func__);
         return JNI_FALSE;
     }
-
-    if (gnssConfigurationAidlIface != nullptr) {
-        auto status = gnssConfigurationAidlIface->setEmergencySuplPdn(emergencySuplPdn);
-        return checkAidlStatus(status, "gnssConfigurationAidlIface setEmergencySuplPdn() failed.");
-    }
-
-    auto result = gnssConfigurationIface->setEmergencySuplPdn(emergencySuplPdn);
-    return checkHidlReturn(result, "IGnssConfiguration setEmergencySuplPdn() failed.");
+    return gnssConfigurationIface->setEmergencySuplPdn(emergencySuplPdn);
 }
 
 static jboolean android_location_GnssConfiguration_set_supl_version(JNIEnv*,
                                                                     jobject,
                                                                     jint version) {
-    if (gnssConfigurationIface == nullptr && gnssConfigurationAidlIface == nullptr) {
+    if (gnssConfigurationIface == nullptr) {
         ALOGE("%s: IGnssConfiguration interface not available.", __func__);
         return JNI_FALSE;
     }
-
-    if (gnssConfigurationAidlIface != nullptr) {
-        auto status = gnssConfigurationAidlIface->setSuplVersion(version);
-        return checkAidlStatus(status, "gnssConfigurationAidlIface setSuplVersion() failed.");
-    }
-
-    auto result = gnssConfigurationIface->setSuplVersion(version);
-    return checkHidlReturn(result, "IGnssConfiguration setSuplVersion() failed.");
+    return gnssConfigurationIface->setSuplVersion(version);
 }
 
 static jboolean android_location_GnssConfiguration_set_supl_es(JNIEnv*,
                                                                jobject,
                                                                jint suplEs) {
-    if (gnssConfigurationIface_V2_0 != nullptr || gnssConfigurationIface_V2_1 != nullptr ||
-        gnssConfigurationAidlIface != nullptr) {
-        ALOGI("Config parameter SUPL_ES is deprecated in IGnssConfiguration.hal version 2.0 and higher.");
-        return JNI_FALSE;
-    }
-
     if (gnssConfigurationIface == nullptr) {
         ALOGE("%s: IGnssConfiguration interface not available.", __func__);
         return JNI_FALSE;
     }
-
-    auto result = gnssConfigurationIface->setSuplEs(suplEs);
-    return checkHidlReturn(result, "IGnssConfiguration setSuplEs() failed.");
+    return gnssConfigurationIface->setSuplEs(suplEs);
 }
 
 static jboolean android_location_GnssConfiguration_set_supl_mode(JNIEnv*,
                                                                  jobject,
                                                                  jint mode) {
-    if (gnssConfigurationIface == nullptr && gnssConfigurationAidlIface == nullptr) {
+    if (gnssConfigurationIface == nullptr) {
         ALOGE("%s: IGnssConfiguration interface not available.", __func__);
         return JNI_FALSE;
     }
-
-    if (gnssConfigurationAidlIface != nullptr) {
-        auto status = gnssConfigurationAidlIface->setSuplMode(mode);
-        return checkAidlStatus(status, "gnssConfigurationAidlIface setSuplMode() failed.");
-    }
-
-    auto result = gnssConfigurationIface->setSuplMode(mode);
-    return checkHidlReturn(result, "IGnssConfiguration setSuplMode() failed.");
+    return gnssConfigurationIface->setSuplMode(mode);
 }
 
 static jboolean android_location_GnssConfiguration_set_gps_lock(JNIEnv*,
                                                                 jobject,
                                                                 jint gpsLock) {
-    if (gnssConfigurationIface_V2_0 != nullptr || gnssConfigurationIface_V2_1 != nullptr ||
-        gnssConfigurationAidlIface != nullptr) {
-        ALOGI("Config parameter GPS_LOCK is deprecated in IGnssConfiguration.hal version 2.0.");
-        return JNI_FALSE;
-    }
-
     if (gnssConfigurationIface == nullptr) {
         ALOGE("%s: IGnssConfiguration interface not available.", __func__);
         return JNI_FALSE;
     }
-
-    auto result = gnssConfigurationIface->setGpsLock(gpsLock);
-    return checkHidlReturn(result, "IGnssConfiguration setGpsLock() failed.");
+    return gnssConfigurationIface->setGpsLock(gpsLock);
 }
 
 static jboolean android_location_GnssConfiguration_set_lpp_profile(JNIEnv*,
                                                                    jobject,
                                                                    jint lppProfile) {
-    if (gnssConfigurationIface == nullptr && gnssConfigurationAidlIface == nullptr) {
+    if (gnssConfigurationIface == nullptr) {
         ALOGE("%s: IGnssConfiguration interface not available.", __func__);
         return JNI_FALSE;
     }
-
-    if (gnssConfigurationAidlIface != nullptr) {
-        auto status = gnssConfigurationAidlIface->setLppProfile(lppProfile);
-        return checkAidlStatus(status, "gnssConfigurationAidlIface setLppProfile() failed.");
-    }
-
-    auto result = gnssConfigurationIface->setLppProfile(lppProfile);
-    return checkHidlReturn(result, "IGnssConfiguration setLppProfile() failed.");
+    return gnssConfigurationIface->setLppProfile(lppProfile);
 }
 
 static jboolean android_location_GnssConfiguration_set_gnss_pos_protocol_select(JNIEnv*,
                                                                             jobject,
                                                                             jint gnssPosProtocol) {
-    if (gnssConfigurationIface == nullptr && gnssConfigurationAidlIface == nullptr) {
+    if (gnssConfigurationIface == nullptr) {
         ALOGE("%s: IGnssConfiguration interface not available.", __func__);
         return JNI_FALSE;
     }
-
-    if (gnssConfigurationAidlIface != nullptr) {
-        auto status = gnssConfigurationAidlIface->setGlonassPositioningProtocol(gnssPosProtocol);
-        return checkAidlStatus(status,
-                               "gnssConfigurationAidlIface setGlonassPositioningProtocol() "
-                               "failed.");
-    }
-
-    auto result = gnssConfigurationIface->setGlonassPositioningProtocol(gnssPosProtocol);
-    return checkHidlReturn(result, "IGnssConfiguration setGlonassPositioningProtocol() failed.");
+    return gnssConfigurationIface->setGlonassPositioningProtocol(gnssPosProtocol);
 }
 
 static jboolean android_location_GnssConfiguration_set_satellite_blacklist(
         JNIEnv* env, jobject, jintArray constellations, jintArray sv_ids) {
-    if (gnssConfigurationIface_V1_1 == nullptr && gnssConfigurationIface_V2_1 == nullptr &&
-        gnssConfigurationAidlIface == nullptr) {
+    if (gnssConfigurationIface == nullptr) {
         ALOGI("IGnssConfiguration interface does not support satellite blacklist.");
         return JNI_FALSE;
     }
-
-    jint *constellation_array = env->GetIntArrayElements(constellations, 0);
-    if (nullptr == constellation_array) {
-        ALOGI("GetIntArrayElements returns nullptr.");
-        return JNI_FALSE;
-    }
-    jsize length = env->GetArrayLength(constellations);
-
-    jint *sv_id_array = env->GetIntArrayElements(sv_ids, 0);
-    if (nullptr == sv_id_array) {
-        ALOGI("GetIntArrayElements returns nullptr.");
-        return JNI_FALSE;
-    }
-
-    if (length != env->GetArrayLength(sv_ids)) {
-        ALOGI("Lengths of constellations and sv_ids are inconsistent.");
-        return JNI_FALSE;
-    }
-
-    if (gnssConfigurationAidlIface != nullptr) {
-        std::vector<BlocklistedSource> sources;
-        sources.resize(length);
-
-        for (int i = 0; i < length; i++) {
-            sources[i].constellation = static_cast<GnssConstellationType>(constellation_array[i]);
-            sources[i].svid = sv_id_array[i];
-        }
-
-        auto status = gnssConfigurationAidlIface->setBlocklist(sources);
-        return checkAidlStatus(status, "gnssConfigurationAidlIface setBlocklist() failed.");
-    } else if (gnssConfigurationIface_V2_1 != nullptr) {
-        hidl_vec<IGnssConfiguration_V2_1::BlacklistedSource> sources;
-        sources.resize(length);
-
-        for (int i = 0; i < length; i++) {
-            sources[i].constellation = static_cast<GnssConstellationType_V2_0>(constellation_array[i]);
-            sources[i].svid = sv_id_array[i];
-        }
-
-        auto result = gnssConfigurationIface_V2_1->setBlacklist_2_1(sources);
-        return checkHidlReturn(result, "IGnssConfiguration_V2_1 setBlacklist_2_1() failed.");
-    }
-
-    hidl_vec<IGnssConfiguration_V1_1::BlacklistedSource> sources;
-    sources.resize(length);
-
-    for (int i = 0; i < length; i++) {
-        sources[i].constellation = static_cast<GnssConstellationType_V1_0>(constellation_array[i]);
-        sources[i].svid = sv_id_array[i];
-    }
-
-    auto result = gnssConfigurationIface_V1_1->setBlacklist(sources);
-    return checkHidlReturn(result, "IGnssConfiguration setBlacklist() failed.");
+    return gnssConfigurationIface->setBlocklist(env, constellations, sv_ids);
 }
 
 static jboolean android_location_GnssConfiguration_set_es_extension_sec(
         JNIEnv*, jobject, jint emergencyExtensionSeconds) {
-    if (gnssConfigurationIface_V2_0 == nullptr && gnssConfigurationAidlIface == nullptr) {
-        ALOGI("Config parameter ES_EXTENSION_SEC is not supported in IGnssConfiguration.hal"
-                " versions earlier than 2.0.");
+    if (gnssConfigurationIface == nullptr) {
+        ALOGE("%s: IGnssConfiguration interface not available.", __func__);
         return JNI_FALSE;
     }
-
-    if (gnssConfigurationAidlIface != nullptr) {
-        auto status = gnssConfigurationAidlIface->setEsExtensionSec(emergencyExtensionSeconds);
-        return checkAidlStatus(status, "gnssConfigurationAidlIface setEsExtensionSec() failed.");
-    }
-
-    auto result = gnssConfigurationIface_V2_0->setEsExtensionSec(emergencyExtensionSeconds);
-    return checkHidlReturn(result, "IGnssConfiguration setEsExtensionSec() failed.");
+    return gnssConfigurationIface->setEsExtensionSec(emergencyExtensionSeconds);
 }
 
 static jint android_location_GnssBatchingProvider_get_batch_size(JNIEnv*, jclass) {
diff --git a/services/core/jni/gnss/GnssConfiguration.cpp b/services/core/jni/gnss/GnssConfiguration.cpp
new file mode 100644
index 0000000..8610c75
--- /dev/null
+++ b/services/core/jni/gnss/GnssConfiguration.cpp
@@ -0,0 +1,264 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Define LOG_TAG before <log/log.h> to overwrite the default value.
+#define LOG_TAG "GnssConfigurationJni"
+
+#include "GnssConfiguration.h"
+
+using android::hardware::gnss::GnssConstellationType;
+using GnssConstellationType_V1_0 = android::hardware::gnss::V1_0::GnssConstellationType;
+using GnssConstellationType_V2_0 = android::hardware::gnss::V2_0::GnssConstellationType;
+
+using android::binder::Status;
+using android::hardware::hidl_vec;
+using android::hardware::Return;
+
+using android::hardware::gnss::IGnssConfiguration;
+using IGnssConfiguration_V1_0 = android::hardware::gnss::V1_0::IGnssConfiguration;
+using IGnssConfiguration_V1_1 = android::hardware::gnss::V1_1::IGnssConfiguration;
+using IGnssConfiguration_V2_0 = android::hardware::gnss::V2_0::IGnssConfiguration;
+using IGnssConfiguration_V2_1 = android::hardware::gnss::V2_1::IGnssConfiguration;
+
+using android::hardware::gnss::BlocklistedSource;
+using BlocklistedSource_V1_1 = IGnssConfiguration_V1_1::BlacklistedSource;
+using BlocklistedSource_V2_1 = IGnssConfiguration_V2_1::BlacklistedSource;
+
+namespace {
+
+jclass class_gnssConfiguration_halInterfaceVersion;
+jmethodID method_halInterfaceVersionCtor;
+
+jboolean checkAidlStatus(const Status& status, const char* errorMessage) {
+    if (!status.isOk()) {
+        ALOGE("%s AIDL transport error: %s", errorMessage, status.toString8().c_str());
+        return JNI_FALSE;
+    }
+    return JNI_TRUE;
+}
+
+template <class T>
+inline void logHidlError(Return<T>& result, const char* errorMessage) {
+    ALOGE("%s HIDL transport error: %s", errorMessage, result.description().c_str());
+}
+
+template <class T>
+jboolean checkHidlReturn(Return<T>& result, const char* errorMessage) {
+    if (!result.isOk()) {
+        logHidlError(result, errorMessage);
+        return JNI_FALSE;
+    } else {
+        return JNI_TRUE;
+    }
+}
+
+jobject createHalInterfaceVersionJavaObject(JNIEnv* env, jint major, jint minor) {
+    return env->NewObject(class_gnssConfiguration_halInterfaceVersion,
+                          method_halInterfaceVersionCtor, major, minor);
+}
+
+} // anonymous namespace
+
+namespace android::gnss {
+
+void GnssConfiguration_class_init_once(JNIEnv* env) {
+    jclass gnssConfiguration_halInterfaceVersionClass = env->FindClass(
+            "com/android/server/location/gnss/GnssConfiguration$HalInterfaceVersion");
+    class_gnssConfiguration_halInterfaceVersion =
+            (jclass)env->NewGlobalRef(gnssConfiguration_halInterfaceVersionClass);
+    method_halInterfaceVersionCtor =
+            env->GetMethodID(class_gnssConfiguration_halInterfaceVersion, "<init>", "(II)V");
+}
+
+// Implementation of GnssConfiguration (AIDL HAL)
+
+GnssConfiguration::GnssConfiguration(const sp<IGnssConfiguration>& iGnssConfiguration)
+      : mIGnssConfiguration(iGnssConfiguration) {}
+
+jobject GnssConfiguration::getVersion(JNIEnv* env) {
+    return createHalInterfaceVersionJavaObject(env, 3, 0);
+}
+
+jboolean GnssConfiguration::setEmergencySuplPdn(jint enable) {
+    auto status = mIGnssConfiguration->setEmergencySuplPdn(enable);
+    return checkAidlStatus(status, "IGnssConfiguration setEmergencySuplPdn() failed.");
+}
+
+jboolean GnssConfiguration::setSuplVersion(jint version) {
+    auto status = mIGnssConfiguration->setSuplVersion(version);
+    return checkAidlStatus(status, "IGnssConfiguration setSuplVersion() failed.");
+}
+
+jboolean GnssConfiguration::setSuplEs(jint enable) {
+    ALOGI("Config parameter SUPL_ES is deprecated in IGnssConfiguration AIDL HAL.");
+    return JNI_FALSE;
+}
+
+jboolean GnssConfiguration::setSuplMode(jint mode) {
+    auto status = mIGnssConfiguration->setSuplMode(mode);
+    return checkAidlStatus(status, "IGnssConfiguration setSuplMode() failed.");
+}
+
+jboolean GnssConfiguration::setGpsLock(jint gpsLock) {
+    ALOGI("Config parameter GPS_LOCK is not supported in IGnssConfiguration AIDL HAL.");
+    return JNI_FALSE;
+}
+
+jboolean GnssConfiguration::setLppProfile(jint lppProfile) {
+    auto status = mIGnssConfiguration->setLppProfile(lppProfile);
+    return checkAidlStatus(status, "IGnssConfiguration setLppProfile() failed.");
+}
+
+jboolean GnssConfiguration::setGlonassPositioningProtocol(jint gnssPosProtocol) {
+    auto status = mIGnssConfiguration->setGlonassPositioningProtocol(gnssPosProtocol);
+    return checkAidlStatus(status, "IGnssConfiguration setGlonassPositioningProtocol() failed.");
+}
+
+jboolean GnssConfiguration::setEsExtensionSec(jint emergencyExtensionSeconds) {
+    auto status = mIGnssConfiguration->setEsExtensionSec(emergencyExtensionSeconds);
+    return checkAidlStatus(status, "IGnssConfiguration setEsExtensionSec() failed.");
+}
+
+jboolean GnssConfiguration::setBlocklist(JNIEnv* env, jintArray& constellations,
+                                         jintArray& sv_ids) {
+    auto sources =
+            getBlocklistedSources<BlocklistedSource, GnssConstellationType>(env, constellations,
+                                                                            sv_ids);
+    auto status = mIGnssConfiguration->setBlocklist(sources);
+    return checkAidlStatus(status, "IGnssConfiguration setBlocklist() failed.");
+}
+
+// Implementation of GnssConfiguration_V1_0
+
+GnssConfiguration_V1_0::GnssConfiguration_V1_0(
+        const sp<IGnssConfiguration_V1_0>& iGnssConfiguration)
+      : mIGnssConfiguration_V1_0(iGnssConfiguration) {}
+
+jobject GnssConfiguration_V1_0::getVersion(JNIEnv* env) {
+    return createHalInterfaceVersionJavaObject(env, 1, 0);
+}
+
+jboolean GnssConfiguration_V1_0::setEmergencySuplPdn(jint enable) {
+    auto result = mIGnssConfiguration_V1_0->setEmergencySuplPdn(enable);
+    return checkHidlReturn(result, "IGnssConfiguration setEmergencySuplPdn() failed.");
+}
+
+jboolean GnssConfiguration_V1_0::setSuplVersion(jint version) {
+    auto result = mIGnssConfiguration_V1_0->setSuplVersion(version);
+    return checkHidlReturn(result, "IGnssConfiguration setSuplVersion() failed.");
+}
+
+jboolean GnssConfiguration_V1_0::setSuplEs(jint enable) {
+    auto result = mIGnssConfiguration_V1_0->setSuplEs(enable);
+    return checkHidlReturn(result, "IGnssConfiguration setSuplEs() failed.");
+}
+
+jboolean GnssConfiguration_V1_0::setSuplMode(jint mode) {
+    auto result = mIGnssConfiguration_V1_0->setSuplMode(mode);
+    return checkHidlReturn(result, "IGnssConfiguration setSuplMode() failed.");
+}
+
+jboolean GnssConfiguration_V1_0::setGpsLock(jint gpsLock) {
+    auto result = mIGnssConfiguration_V1_0->setGpsLock(gpsLock);
+    return checkHidlReturn(result, "IGnssConfiguration setGpsLock() failed.");
+}
+
+jboolean GnssConfiguration_V1_0::setLppProfile(jint lppProfile) {
+    auto result = mIGnssConfiguration_V1_0->setLppProfile(lppProfile);
+    return checkHidlReturn(result, "IGnssConfiguration setLppProfile() failed.");
+}
+
+jboolean GnssConfiguration_V1_0::setGlonassPositioningProtocol(jint gnssPosProtocol) {
+    auto result = mIGnssConfiguration_V1_0->setGlonassPositioningProtocol(gnssPosProtocol);
+    return checkHidlReturn(result, "IGnssConfiguration setGlonassPositioningProtocol() failed.");
+}
+
+jboolean GnssConfiguration_V1_0::setEsExtensionSec(jint emergencyExtensionSeconds) {
+    ALOGI("Config parameter ES_EXTENSION_SEC is not supported in IGnssConfiguration.hal"
+          " versions earlier than 2.0.");
+    return JNI_FALSE;
+}
+
+jboolean GnssConfiguration_V1_0::setBlocklist(JNIEnv* env, jintArray& constellations,
+                                              jintArray& sv_ids) {
+    ALOGI("IGnssConfiguration interface does not support satellite blocklist.");
+    return JNI_FALSE;
+}
+
+// Implementation of GnssConfiguration_V1_1
+
+GnssConfiguration_V1_1::GnssConfiguration_V1_1(
+        const sp<IGnssConfiguration_V1_1>& iGnssConfiguration)
+      : GnssConfiguration_V1_0{iGnssConfiguration}, mIGnssConfiguration_V1_1(iGnssConfiguration) {}
+
+jobject GnssConfiguration_V1_1::getVersion(JNIEnv* env) {
+    return createHalInterfaceVersionJavaObject(env, 1, 1);
+}
+
+jboolean GnssConfiguration_V1_1::setBlocklist(JNIEnv* env, jintArray& constellations,
+                                              jintArray& sv_ids) {
+    auto sources = getBlocklistedSources<BlocklistedSource_V1_1,
+                                         GnssConstellationType_V1_0>(env, constellations, sv_ids);
+    auto result = mIGnssConfiguration_V1_1->setBlacklist(sources);
+    return checkHidlReturn(result, "IGnssConfiguration setBlocklist() failed.");
+}
+
+// Implementation of GnssConfiguration_V2_0
+
+GnssConfiguration_V2_0::GnssConfiguration_V2_0(
+        const sp<IGnssConfiguration_V2_0>& iGnssConfiguration)
+      : GnssConfiguration_V1_1{iGnssConfiguration}, mIGnssConfiguration_V2_0(iGnssConfiguration) {}
+
+jobject GnssConfiguration_V2_0::getVersion(JNIEnv* env) {
+    return createHalInterfaceVersionJavaObject(env, 2, 0);
+}
+
+jboolean GnssConfiguration_V2_0::setSuplEs(jint enable) {
+    ALOGI("Config parameter SUPL_ES is deprecated in IGnssConfiguration.hal version 2.0 and "
+          "higher.");
+    return JNI_FALSE;
+}
+
+jboolean GnssConfiguration_V2_0::setGpsLock(jint enable) {
+    ALOGI("Config parameter GPS_LOCK is deprecated in IGnssConfiguration.hal version 2.0 and "
+          "higher.");
+    return JNI_FALSE;
+}
+
+jboolean GnssConfiguration_V2_0::setEsExtensionSec(jint emergencyExtensionSeconds) {
+    auto result = mIGnssConfiguration_V2_0->setEsExtensionSec(emergencyExtensionSeconds);
+    return checkHidlReturn(result, "IGnssConfiguration setEsExtensionSec() failed.");
+}
+
+// Implementation of GnssConfiguration_V2_1
+
+GnssConfiguration_V2_1::GnssConfiguration_V2_1(
+        const sp<IGnssConfiguration_V2_1>& iGnssConfiguration)
+      : GnssConfiguration_V2_0{iGnssConfiguration}, mIGnssConfiguration_V2_1(iGnssConfiguration) {}
+
+jobject GnssConfiguration_V2_1::getVersion(JNIEnv* env) {
+    return createHalInterfaceVersionJavaObject(env, 2, 1);
+}
+
+jboolean GnssConfiguration_V2_1::setBlocklist(JNIEnv* env, jintArray& constellations,
+                                              jintArray& sv_ids) {
+    auto sources = getBlocklistedSources<BlocklistedSource_V2_1,
+                                         GnssConstellationType_V2_0>(env, constellations, sv_ids);
+    auto result = mIGnssConfiguration_V2_1->setBlacklist_2_1(sources);
+    return checkHidlReturn(result, "IGnssConfiguration setBlocklist() failed.");
+}
+
+} // namespace android::gnss
diff --git a/services/core/jni/gnss/GnssConfiguration.h b/services/core/jni/gnss/GnssConfiguration.h
new file mode 100644
index 0000000..ea0f178
--- /dev/null
+++ b/services/core/jni/gnss/GnssConfiguration.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _ANDROID_SERVER_GNSS_GNSSCONFIGURATION_H
+#define _ANDROID_SERVER_GNSS_GNSSCONFIGURATION_H
+
+#pragma once
+
+#ifndef LOG_TAG
+#error LOG_TAG must be defined before including this file.
+#endif
+
+#include <android/hardware/gnss/1.0/IGnssConfiguration.h>
+#include <android/hardware/gnss/1.1/IGnssConfiguration.h>
+#include <android/hardware/gnss/2.0/IGnssConfiguration.h>
+#include <android/hardware/gnss/2.1/IGnssConfiguration.h>
+#include <android/hardware/gnss/BnGnssConfiguration.h>
+#include <log/log.h>
+
+#include "jni.h"
+
+namespace android::gnss {
+
+void GnssConfiguration_class_init_once(JNIEnv* env);
+
+class GnssConfigurationInterface {
+public:
+    virtual ~GnssConfigurationInterface() {}
+    virtual jobject getVersion(JNIEnv* env) = 0;
+    virtual jboolean setEmergencySuplPdn(jint enable) = 0;
+    virtual jboolean setSuplVersion(jint version) = 0;
+    virtual jboolean setSuplEs(jint enable) = 0;
+    virtual jboolean setSuplMode(jint mode) = 0;
+    virtual jboolean setGpsLock(jint gpsLock) = 0;
+    virtual jboolean setLppProfile(jint lppProfile) = 0;
+    virtual jboolean setGlonassPositioningProtocol(jint gnssPosProtocol) = 0;
+    virtual jboolean setEsExtensionSec(jint emergencyExtensionSeconds) = 0;
+    virtual jboolean setBlocklist(JNIEnv* env, jintArray& constellations, jintArray& sv_ids) = 0;
+
+protected:
+    template <class T_BlocklistSource, class T_ConstellationType>
+    hardware::hidl_vec<T_BlocklistSource> getBlocklistedSources(JNIEnv* env,
+                                                                jintArray& constellations,
+                                                                jintArray& sv_ids) {
+        jint* constellation_array = env->GetIntArrayElements(constellations, 0);
+        if (nullptr == constellation_array) {
+            ALOGI("GetIntArrayElements returns nullptr.");
+            return JNI_FALSE;
+        }
+
+        jsize length = env->GetArrayLength(constellations);
+
+        jint* sv_id_array = env->GetIntArrayElements(sv_ids, 0);
+        if (nullptr == sv_id_array) {
+            ALOGI("GetIntArrayElements returns nullptr.");
+            return JNI_FALSE;
+        }
+
+        if (length != env->GetArrayLength(sv_ids)) {
+            ALOGI("Lengths of constellations and sv_ids are inconsistent.");
+            return JNI_FALSE;
+        }
+
+        hardware::hidl_vec<T_BlocklistSource> sources;
+        sources.resize(length);
+
+        for (int i = 0; i < length; i++) {
+            sources[i].constellation = static_cast<T_ConstellationType>(constellation_array[i]);
+            sources[i].svid = sv_id_array[i];
+        }
+
+        env->ReleaseIntArrayElements(constellations, constellation_array, 0);
+        env->ReleaseIntArrayElements(sv_ids, sv_id_array, 0);
+
+        return sources;
+    }
+};
+
+class GnssConfiguration : public GnssConfigurationInterface {
+public:
+    GnssConfiguration(const sp<android::hardware::gnss::IGnssConfiguration>& iGnssConfiguration);
+    jobject getVersion(JNIEnv* env) override;
+    jboolean setEmergencySuplPdn(jint enable) override;
+    jboolean setSuplVersion(jint version) override;
+    jboolean setSuplEs(jint enable) override;
+    jboolean setSuplMode(jint mode) override;
+    jboolean setGpsLock(jint gpsLock) override;
+    jboolean setLppProfile(jint lppProfile) override;
+    jboolean setGlonassPositioningProtocol(jint gnssPosProtocol) override;
+    jboolean setEsExtensionSec(jint emergencyExtensionSeconds) override;
+    jboolean setBlocklist(JNIEnv* env, jintArray& constellations, jintArray& sv_ids) override;
+
+private:
+    const sp<android::hardware::gnss::IGnssConfiguration> mIGnssConfiguration;
+};
+
+class GnssConfiguration_V1_0 : public GnssConfigurationInterface {
+public:
+    GnssConfiguration_V1_0(
+            const sp<android::hardware::gnss::V1_0::IGnssConfiguration>& iGnssConfiguration);
+    jobject getVersion(JNIEnv* env) override;
+    jboolean setEmergencySuplPdn(jint enable);
+    jboolean setSuplVersion(jint version) override;
+    jboolean setSuplEs(jint enable) override;
+    jboolean setSuplMode(jint mode) override;
+    jboolean setGpsLock(jint gpsLock) override;
+    jboolean setLppProfile(jint lppProfile);
+    jboolean setGlonassPositioningProtocol(jint gnssPosProtocol) override;
+    jboolean setEsExtensionSec(jint emergencyExtensionSeconds) override;
+    jboolean setBlocklist(JNIEnv* env, jintArray& constellations, jintArray& sv_ids) override;
+
+private:
+    const sp<android::hardware::gnss::V1_0::IGnssConfiguration> mIGnssConfiguration_V1_0;
+};
+
+class GnssConfiguration_V1_1 : public GnssConfiguration_V1_0 {
+public:
+    GnssConfiguration_V1_1(
+            const sp<android::hardware::gnss::V1_1::IGnssConfiguration>& iGnssConfiguration);
+
+    jobject getVersion(JNIEnv* env) override;
+
+    jboolean setBlocklist(JNIEnv* env, jintArray& constellations, jintArray& sv_ids) override;
+
+private:
+    const sp<android::hardware::gnss::V1_1::IGnssConfiguration> mIGnssConfiguration_V1_1;
+};
+
+class GnssConfiguration_V2_0 : public GnssConfiguration_V1_1 {
+public:
+    GnssConfiguration_V2_0(
+            const sp<android::hardware::gnss::V2_0::IGnssConfiguration>& iGnssConfiguration);
+    jobject getVersion(JNIEnv* env) override;
+    jboolean setSuplEs(jint enable) override;
+    jboolean setGpsLock(jint enable) override;
+    jboolean setEsExtensionSec(jint emergencyExtensionSeconds) override;
+
+private:
+    const sp<android::hardware::gnss::V2_0::IGnssConfiguration> mIGnssConfiguration_V2_0;
+};
+
+class GnssConfiguration_V2_1 : public GnssConfiguration_V2_0 {
+public:
+    GnssConfiguration_V2_1(
+            const sp<android::hardware::gnss::V2_1::IGnssConfiguration>& iGnssConfiguration);
+    jobject getVersion(JNIEnv* env) override;
+    jboolean setBlocklist(JNIEnv* env, jintArray& constellations, jintArray& sv_ids) override;
+
+private:
+    const sp<android::hardware::gnss::V2_1::IGnssConfiguration> mIGnssConfiguration_V2_1;
+};
+
+} // namespace android::gnss
+
+#endif // _ANDROID_SERVER_GNSS_GNSSCONFIGURATION_H