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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 //#define LOG_NDEBUG 0
     18 #define LOG_TAG "HTTPHelper"
     19 #include <utils/Log.h>
     20 
     21 #include "HTTPHelper.h"
     22 
     23 #include "android_runtime/AndroidRuntime.h"
     24 #include "android_util_Binder.h"
     25 #include <media/IMediaHTTPService.h>
     26 #include <media/stagefright/foundation/ADebug.h>
     27 #include <nativehelper/ScopedLocalRef.h>
     28 #include "jni.h"
     29 
     30 namespace android {
     31 
     32 sp<IMediaHTTPService> CreateHTTPServiceInCurrentJavaContext() {
     33     if (AndroidRuntime::getJavaVM() == NULL) {
     34         ALOGE("CreateHTTPServiceInCurrentJavaContext called outside "
     35               "JAVA environment.");
     36         return NULL;
     37     }
     38 
     39     JNIEnv *env = AndroidRuntime::getJNIEnv();
     40 
     41     ScopedLocalRef<jclass> clazz(
     42             env, env->FindClass("android/media/MediaHTTPService"));
     43     CHECK(clazz.get() != NULL);
     44 
     45     jmethodID constructID = env->GetMethodID(clazz.get(), "<init>", "()V");
     46     CHECK(constructID != NULL);
     47 
     48     ScopedLocalRef<jobject> httpServiceObj(
     49             env, env->NewObject(clazz.get(), constructID));
     50 
     51     sp<IMediaHTTPService> httpService;
     52     if (httpServiceObj.get() != NULL) {
     53         jmethodID asBinderID =
     54             env->GetMethodID(clazz.get(), "asBinder", "()Landroid/os/IBinder;");
     55         CHECK(asBinderID != NULL);
     56 
     57         ScopedLocalRef<jobject> httpServiceBinderObj(
     58                 env, env->CallObjectMethod(httpServiceObj.get(), asBinderID));
     59         CHECK(httpServiceBinderObj.get() != NULL);
     60 
     61         sp<IBinder> binder =
     62             ibinderForJavaObject(env, httpServiceBinderObj.get());
     63 
     64         httpService = interface_cast<IMediaHTTPService>(binder);
     65     }
     66 
     67     return httpService;
     68 }
     69 
     70 }  // namespace android
     71