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      1 /*
      2  * Copyright 2017, 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 #include <android_runtime/AndroidRuntime.h>
     18 #include <jni.h>
     19 #include <nativehelper/JNIHelp.h>
     20 
     21 #include "android_media_MediaMetricsJNI.h"
     22 #include <media/MediaAnalyticsItem.h>
     23 
     24 
     25 namespace android {
     26 
     27 // place the attributes into a java PersistableBundle object
     28 jobject MediaMetricsJNI::writeMetricsToBundle(JNIEnv* env, MediaAnalyticsItem *item, jobject mybundle) {
     29 
     30     jclass clazzBundle = env->FindClass("android/os/PersistableBundle");
     31     if (clazzBundle==NULL) {
     32         ALOGD("can't find android/os/PersistableBundle");
     33         return NULL;
     34     }
     35     // sometimes the caller provides one for us to fill
     36     if (mybundle == NULL) {
     37         // create the bundle
     38         jmethodID constructID = env->GetMethodID(clazzBundle, "<init>", "()V");
     39         mybundle = env->NewObject(clazzBundle, constructID);
     40         if (mybundle == NULL) {
     41             return NULL;
     42         }
     43     }
     44 
     45     // grab methods that we can invoke
     46     jmethodID setIntID = env->GetMethodID(clazzBundle, "putInt", "(Ljava/lang/String;I)V");
     47     jmethodID setLongID = env->GetMethodID(clazzBundle, "putLong", "(Ljava/lang/String;J)V");
     48     jmethodID setDoubleID = env->GetMethodID(clazzBundle, "putDouble", "(Ljava/lang/String;D)V");
     49     jmethodID setStringID = env->GetMethodID(clazzBundle, "putString", "(Ljava/lang/String;Ljava/lang/String;)V");
     50 
     51     // env, class, method, {parms}
     52     //env->CallVoidMethod(env, mybundle, setIntID, jstr, jint);
     53 
     54     // iterate through my attributes
     55     // -- get name, get type, get value
     56     // -- insert appropriately into the bundle
     57     for (size_t i = 0 ; i < item->mPropCount; i++ ) {
     58             MediaAnalyticsItem::Prop *prop = &item->mProps[i];
     59             // build the key parameter from prop->mName
     60             jstring keyName = env->NewStringUTF(prop->mName);
     61             // invoke the appropriate method to insert
     62             switch (prop->mType) {
     63                 case MediaAnalyticsItem::kTypeInt32:
     64                     env->CallVoidMethod(mybundle, setIntID,
     65                                         keyName, (jint) prop->u.int32Value);
     66                     break;
     67                 case MediaAnalyticsItem::kTypeInt64:
     68                     env->CallVoidMethod(mybundle, setLongID,
     69                                         keyName, (jlong) prop->u.int64Value);
     70                     break;
     71                 case MediaAnalyticsItem::kTypeDouble:
     72                     env->CallVoidMethod(mybundle, setDoubleID,
     73                                         keyName, (jdouble) prop->u.doubleValue);
     74                     break;
     75                 case MediaAnalyticsItem::kTypeCString:
     76                     env->CallVoidMethod(mybundle, setStringID, keyName,
     77                                         env->NewStringUTF(prop->u.CStringValue));
     78                     break;
     79                 default:
     80                         ALOGE("to_String bad item type: %d for %s",
     81                               prop->mType, prop->mName);
     82                         break;
     83             }
     84     }
     85 
     86     return mybundle;
     87 }
     88 
     89 };  // namespace android
     90 
     91