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/*
* Copyright (C) 2021 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.
*/
#include "service_manager.h"
#include <string>
#include "jvm.h"
#include "log.h"
namespace screensharing {
using namespace std;
ServiceManager::ServiceManager(Jni jni)
: service_manager_class_() {
service_manager_class_ = jni.GetClass("android/os/ServiceManager");
get_service_method_ = service_manager_class_.GetStaticMethodId("getService", "(Ljava/lang/String;)Landroid/os/IBinder;");
service_manager_class_.MakeGlobal();
}
ServiceManager& ServiceManager::GetInstance(Jni jni) {
if (instance_ == nullptr) {
instance_ = new ServiceManager(jni);
}
return *instance_;
}
JObject ServiceManager::GetServiceAsInterface(Jni jni, const char* name, const char* type) {
JObject binder = GetService(jni, name);
string stub_class_name = string(type) + "$Stub";
JClass stub_class = jni.GetClass(stub_class_name.c_str());
string method_signature = string("(Landroid/os/IBinder;)L") + type + ";";
jmethodID as_interface_method = stub_class.GetStaticMethodId("asInterface", method_signature.c_str());
auto service = stub_class.CallStaticObjectMethod(as_interface_method, binder.ref());
if (service.IsNull()) {
auto last_slash = strrchr(type, '/');
auto type_name = last_slash == nullptr ? type : last_slash + 1;
Log::Fatal("Unable to get the \"%s\" service object", type_name);
}
return service;
}
JObject ServiceManager::GetService(Jni jni, const char* name) {
Log::D("GetService(\"%s\")", name);
ServiceManager& manager = GetInstance(jni);
JObject binder = manager.service_manager_class_.CallStaticObjectMethod(jni, manager.get_service_method_, JString(jni, name).ref());
if (binder.IsNull()) {
Log::Fatal("Unable to find the \"%s\" service", name);
}
return binder;
}
ServiceManager* ServiceManager::instance_ = nullptr;
} // namespace screensharing
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