Naming consistency: MediaAnalytics to MediaMetrics

Bug: 145780674
Test: build, boot, dumpsys media.metrics
Test: atest mediametrics_tests CtsNativeMediaMetricsTestCases
Change-Id: Icbfa98da9e61702aee9a1d807b5e126b4b9c6458
diff --git a/media/libmediametrics/Android.bp b/media/libmediametrics/Android.bp
index f599190..7fd5408 100644
--- a/media/libmediametrics/Android.bp
+++ b/media/libmediametrics/Android.bp
@@ -2,8 +2,8 @@
     name: "libmediametrics",
 
     srcs: [
-        "IMediaAnalyticsService.cpp",
-        "MediaAnalyticsItem.cpp",
+        "IMediaMetricsService.cpp",
+        "MediaMetricsItem.cpp",
         "MediaMetrics.cpp",
     ],
 
diff --git a/media/libmediametrics/IMediaAnalyticsService.cpp b/media/libmediametrics/IMediaMetricsService.cpp
similarity index 80%
rename from media/libmediametrics/IMediaAnalyticsService.cpp
rename to media/libmediametrics/IMediaMetricsService.cpp
index 534aece..b5675e6 100644
--- a/media/libmediametrics/IMediaAnalyticsService.cpp
+++ b/media/libmediametrics/IMediaMetricsService.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#define LOG_TAG "MediaAnalytics"
+#define LOG_TAG "MediaMetrics"
 
 #include <stdint.h>
 #include <inttypes.h>
@@ -29,8 +29,8 @@
 #include <utils/Log.h>
 #include <utils/String8.h>
 
-#include <media/MediaAnalyticsItem.h>
-#include <media/IMediaAnalyticsService.h>
+#include <media/MediaMetricsItem.h>
+#include <media/IMediaMetricsService.h>
 
 namespace android {
 
@@ -41,15 +41,15 @@
     SUBMIT_BUFFER,
 };
 
-class BpMediaAnalyticsService: public BpInterface<IMediaAnalyticsService>
+class BpMediaMetricsService: public BpInterface<IMediaMetricsService>
 {
 public:
-    explicit BpMediaAnalyticsService(const sp<IBinder>& impl)
-        : BpInterface<IMediaAnalyticsService>(impl)
+    explicit BpMediaMetricsService(const sp<IBinder>& impl)
+        : BpInterface<IMediaMetricsService>(impl)
     {
     }
 
-    status_t submit(MediaAnalyticsItem *item) override
+    status_t submit(mediametrics::Item *item) override
     {
         if (item == nullptr) {
             return BAD_VALUE;
@@ -57,7 +57,7 @@
         ALOGV("%s: (ONEWAY) item=%s", __func__, item->toString().c_str());
 
         Parcel data;
-        data.writeInterfaceToken(IMediaAnalyticsService::getInterfaceDescriptor());
+        data.writeInterfaceToken(IMediaMetricsService::getInterfaceDescriptor());
 
         status_t status = item->writeToParcel(&data);
         if (status != NO_ERROR) { // assume failure logged in item
@@ -79,7 +79,7 @@
         ALOGV("%s: (ONEWAY) length:%zu", __func__, length);
 
         Parcel data;
-        data.writeInterfaceToken(IMediaAnalyticsService::getInterfaceDescriptor());
+        data.writeInterfaceToken(IMediaMetricsService::getInterfaceDescriptor());
 
         status_t status = data.writeInt32(length)
                 ?: data.write((uint8_t*)buffer, length);
@@ -95,18 +95,18 @@
     }
 };
 
-IMPLEMENT_META_INTERFACE(MediaAnalyticsService, "android.media.IMediaAnalyticsService");
+IMPLEMENT_META_INTERFACE(MediaMetricsService, "android.media.IMediaMetricsService");
 
 // ----------------------------------------------------------------------
 
-status_t BnMediaAnalyticsService::onTransact(
+status_t BnMediaMetricsService::onTransact(
     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
 {
     switch (code) {
     case SUBMIT_ITEM: {
-        CHECK_INTERFACE(IMediaAnalyticsService, data, reply);
+        CHECK_INTERFACE(IMediaMetricsService, data, reply);
 
-        MediaAnalyticsItem * const item = MediaAnalyticsItem::create();
+        mediametrics::Item * const item = mediametrics::Item::create();
         status_t status = item->readFromParcel(data);
         if (status != NO_ERROR) { // assume failure logged in item
             return status;
@@ -116,7 +116,7 @@
         return NO_ERROR;
     }
     case SUBMIT_BUFFER: {
-        CHECK_INTERFACE(IMediaAnalyticsService, data, reply);
+        CHECK_INTERFACE(IMediaMetricsService, data, reply);
         int32_t length;
         status_t status = data.readInt32(&length);
         if (status != NO_ERROR || length <= 0) {
diff --git a/media/libmediametrics/MediaMetrics.cpp b/media/libmediametrics/MediaMetrics.cpp
index cf268e0..4aceac5 100644
--- a/media/libmediametrics/MediaMetrics.cpp
+++ b/media/libmediametrics/MediaMetrics.cpp
@@ -21,7 +21,7 @@
 #include <string.h>
 #include <sys/types.h>
 
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/MediaMetrics.h>
 
 //
@@ -34,25 +34,25 @@
 
 // manage the overall record
 mediametrics_handle_t mediametrics_create(mediametricskey_t key) {
-    android::MediaAnalyticsItem *item = android::MediaAnalyticsItem::create(key);
+    android::mediametrics::Item *item = android::mediametrics::Item::create(key);
     return (mediametrics_handle_t) item;
 }
 
 void mediametrics_delete(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return;
     delete item;
 }
 
 mediametricskey_t mediametrics_getKey(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return NULL;
     return strdup(item->getKey().c_str());
 }
 
 // nuplayer, et al use it when acting as proxies
 void mediametrics_setUid(mediametrics_handle_t handle, uid_t uid) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->setUid(uid);
 }
 
@@ -61,31 +61,31 @@
 
 void mediametrics_setInt32(mediametrics_handle_t handle, attr_t attr,
                                 int32_t value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->setInt32(attr, value);
 }
 
 void mediametrics_setInt64(mediametrics_handle_t handle, attr_t attr,
                                 int64_t value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->setInt64(attr, value);
 }
 
 void mediametrics_setDouble(mediametrics_handle_t handle, attr_t attr,
                                  double value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->setDouble(attr, value);
 }
 
 void mediametrics_setRate(mediametrics_handle_t handle, attr_t attr,
                                int64_t count, int64_t duration) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->setRate(attr, count, duration);
 }
 
 void mediametrics_setCString(mediametrics_handle_t handle, attr_t attr,
                                  const char *value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->setCString(attr, value);
 }
 
@@ -94,25 +94,25 @@
 
 void mediametrics_addInt32(mediametrics_handle_t handle, attr_t attr,
                                 int32_t value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->addInt32(attr, value);
 }
 
 void mediametrics_addInt64(mediametrics_handle_t handle, attr_t attr,
                                 int64_t value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->addInt64(attr, value);
 }
 
 void mediametrics_addDouble(mediametrics_handle_t handle, attr_t attr,
                                  double value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->addDouble(attr, value);
 }
 
 void mediametrics_addRate(mediametrics_handle_t handle, attr_t attr,
                                int64_t count, int64_t duration) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item != NULL) item->addRate(attr, count, duration);
 }
 
@@ -123,28 +123,28 @@
 
 bool mediametrics_getInt32(mediametrics_handle_t handle, attr_t attr,
                                 int32_t * value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return false;
     return item->getInt32(attr, value);
 }
 
 bool mediametrics_getInt64(mediametrics_handle_t handle, attr_t attr,
                                 int64_t * value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return false;
     return item->getInt64(attr, value);
 }
 
 bool mediametrics_getDouble(mediametrics_handle_t handle, attr_t attr,
                                  double *value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return false;
     return item->getDouble(attr, value);
 }
 
 bool mediametrics_getRate(mediametrics_handle_t handle, attr_t attr,
                                int64_t * count, int64_t * duration, double *rate) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return false;
     return item->getRate(attr, count, duration, rate);
 }
@@ -152,7 +152,7 @@
 // NB: caller owns the string that comes back, is responsible for freeing it
 bool mediametrics_getCString(mediametrics_handle_t handle, attr_t attr,
                                  char **value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return false;
 
     return item->getCString(attr, value);
@@ -164,36 +164,36 @@
 }
 
 bool mediametrics_selfRecord(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return false;
     return item->selfrecord();
 }
 
 mediametrics_handle_t mediametrics_dup(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
-    if (item == NULL) return android::MediaAnalyticsItem::convert(item);
-    return android::MediaAnalyticsItem::convert(item->dup());
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
+    if (item == NULL) return android::mediametrics::Item::convert(item);
+    return android::mediametrics::Item::convert(item->dup());
 }
 
 const char *mediametrics_readable(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return "";
     return item->toCString();
 }
 
 int32_t mediametrics_count(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return 0;
     return item->count();
 }
 
 bool mediametrics_isEnabled() {
     // static, so doesn't need an instance
-    return android::MediaAnalyticsItem::isEnabled();
+    return android::mediametrics::Item::isEnabled();
 }
 
 bool mediametrics_getAttributes(mediametrics_handle_t handle, char **buffer, size_t *length) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    android::mediametrics::Item *item = (android::mediametrics::Item *) handle;
     if (item == NULL) return false;
     return item->writeToByteString(buffer, length) == android::NO_ERROR;
 
diff --git a/media/libmediametrics/MediaAnalyticsItem.cpp b/media/libmediametrics/MediaMetricsItem.cpp
similarity index 87%
rename from media/libmediametrics/MediaAnalyticsItem.cpp
rename to media/libmediametrics/MediaMetricsItem.cpp
index 8025e49..98158d2 100644
--- a/media/libmediametrics/MediaAnalyticsItem.cpp
+++ b/media/libmediametrics/MediaMetricsItem.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#define LOG_TAG "MediaAnalyticsItem"
+#define LOG_TAG "mediametrics::Item"
 
 #include <inttypes.h>
 #include <stdlib.h>
@@ -31,15 +31,15 @@
 #include <utils/threads.h>
 
 #include <binder/IServiceManager.h>
-#include <media/IMediaAnalyticsService.h>
-#include <media/MediaAnalyticsItem.h>
+#include <media/IMediaMetricsService.h>
+#include <media/MediaMetricsItem.h>
 #include <private/android_filesystem_config.h>
 
 // Max per-property string size before truncation in toString().
 // Do not make too large, as this is used for dumpsys purposes.
 static constexpr size_t kMaxPropertyStringSize = 4096;
 
-namespace android {
+namespace android::mediametrics {
 
 #define DEBUG_SERVICEACCESS     0
 #define DEBUG_API               0
@@ -49,24 +49,24 @@
 // the service is off.
 #define SVC_TRIES               2
 
-MediaAnalyticsItem* MediaAnalyticsItem::convert(mediametrics_handle_t handle) {
-    MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+mediametrics::Item* mediametrics::Item::convert(mediametrics_handle_t handle) {
+    mediametrics::Item *item = (android::mediametrics::Item *) handle;
     return item;
 }
 
-mediametrics_handle_t MediaAnalyticsItem::convert(MediaAnalyticsItem *item ) {
+mediametrics_handle_t mediametrics::Item::convert(mediametrics::Item *item ) {
     mediametrics_handle_t handle = (mediametrics_handle_t) item;
     return handle;
 }
 
-MediaAnalyticsItem::~MediaAnalyticsItem() {
+mediametrics::Item::~Item() {
     if (DEBUG_ALLOCATIONS) {
-        ALOGD("Destroy  MediaAnalyticsItem @ %p", this);
+        ALOGD("Destroy  mediametrics::Item @ %p", this);
     }
     clear();
 }
 
-void MediaAnalyticsItem::clear() {
+void mediametrics::Item::clear() {
 
     // clean allocated storage from key
     mKey.clear();
@@ -88,8 +88,8 @@
 }
 
 // make a deep copy of myself
-MediaAnalyticsItem *MediaAnalyticsItem::dup() {
-    MediaAnalyticsItem *dst = new MediaAnalyticsItem(this->mKey);
+mediametrics::Item *mediametrics::Item::dup() {
+    mediametrics::Item *dst = new mediametrics::Item(this->mKey);
 
     if (dst != NULL) {
         // key as part of constructor
@@ -110,50 +110,50 @@
     return dst;
 }
 
-MediaAnalyticsItem &MediaAnalyticsItem::setTimestamp(nsecs_t ts) {
+mediametrics::Item &mediametrics::Item::setTimestamp(nsecs_t ts) {
     mTimestamp = ts;
     return *this;
 }
 
-nsecs_t MediaAnalyticsItem::getTimestamp() const {
+nsecs_t mediametrics::Item::getTimestamp() const {
     return mTimestamp;
 }
 
-MediaAnalyticsItem &MediaAnalyticsItem::setPid(pid_t pid) {
+mediametrics::Item &mediametrics::Item::setPid(pid_t pid) {
     mPid = pid;
     return *this;
 }
 
-pid_t MediaAnalyticsItem::getPid() const {
+pid_t mediametrics::Item::getPid() const {
     return mPid;
 }
 
-MediaAnalyticsItem &MediaAnalyticsItem::setUid(uid_t uid) {
+mediametrics::Item &mediametrics::Item::setUid(uid_t uid) {
     mUid = uid;
     return *this;
 }
 
-uid_t MediaAnalyticsItem::getUid() const {
+uid_t mediametrics::Item::getUid() const {
     return mUid;
 }
 
-MediaAnalyticsItem &MediaAnalyticsItem::setPkgName(const std::string &pkgName) {
+mediametrics::Item &mediametrics::Item::setPkgName(const std::string &pkgName) {
     mPkgName = pkgName;
     return *this;
 }
 
-MediaAnalyticsItem &MediaAnalyticsItem::setPkgVersionCode(int64_t pkgVersionCode) {
+mediametrics::Item &mediametrics::Item::setPkgVersionCode(int64_t pkgVersionCode) {
     mPkgVersionCode = pkgVersionCode;
     return *this;
 }
 
-int64_t MediaAnalyticsItem::getPkgVersionCode() const {
+int64_t mediametrics::Item::getPkgVersionCode() const {
     return mPkgVersionCode;
 }
 
 
 // find the proper entry in the list
-size_t MediaAnalyticsItem::findPropIndex(const char *name) const
+size_t mediametrics::Item::findPropIndex(const char *name) const
 {
     size_t i = 0;
     for (; i < mPropCount; i++) {
@@ -162,7 +162,7 @@
     return i;
 }
 
-MediaAnalyticsItem::Prop *MediaAnalyticsItem::findProp(const char *name) const {
+mediametrics::Item::Prop *mediametrics::Item::findProp(const char *name) const {
     const size_t i = findPropIndex(name);
     if (i < mPropCount) {
         return &mProps[i];
@@ -172,7 +172,7 @@
 
 // consider this "find-or-allocate".
 // caller validates type and uses clearPropValue() accordingly
-MediaAnalyticsItem::Prop *MediaAnalyticsItem::allocateProp(const char *name) {
+mediametrics::Item::Prop *mediametrics::Item::allocateProp(const char *name) {
     const size_t i = findPropIndex(name);
     if (i < mPropCount) {
         return &mProps[i]; // already have it, return
@@ -184,7 +184,7 @@
     return prop;
 }
 
-MediaAnalyticsItem::Prop *MediaAnalyticsItem::allocateProp() {
+mediametrics::Item::Prop *mediametrics::Item::allocateProp() {
     if (mPropCount == mPropSize && growProps() == false) {
         ALOGE("%s: failed allocation for new properties", __func__);
         return nullptr;
@@ -193,7 +193,7 @@
 }
 
 // used within the summarizers; return whether property existed
-bool MediaAnalyticsItem::removeProp(const char *name) {
+bool mediametrics::Item::removeProp(const char *name) {
     const size_t i = findPropIndex(name);
     if (i < mPropCount) {
         mProps[i].clear();
@@ -209,7 +209,7 @@
 
 // remove indicated keys and their values
 // return value is # keys removed
-size_t MediaAnalyticsItem::filter(size_t n, const char *attrs[]) {
+size_t mediametrics::Item::filter(size_t n, const char *attrs[]) {
     size_t zapped = 0;
     for (size_t i = 0; i < n; ++i) {
         const char *name = attrs[i];
@@ -235,7 +235,7 @@
 
 // remove any keys NOT in the provided list
 // return value is # keys removed
-size_t MediaAnalyticsItem::filterNot(size_t n, const char *attrs[]) {
+size_t mediametrics::Item::filterNot(size_t n, const char *attrs[]) {
     std::set<std::string> check(attrs, attrs + n);
     size_t zapped = 0;
     for (size_t j = 0; j < mPropCount;) {
@@ -260,7 +260,7 @@
     return zapped;
 }
 
-bool MediaAnalyticsItem::growProps(int increment)
+bool mediametrics::Item::growProps(int increment)
 {
     if (increment <= 0) {
         increment = kGrowProps;
@@ -276,7 +276,7 @@
         mPropSize = nsize;
         return true;
     } else {
-        ALOGW("MediaAnalyticsItem::growProps fails");
+        ALOGW("mediametrics::Item::growProps fails");
         return false;
     }
 }
@@ -284,7 +284,7 @@
 // Parcel / serialize things for binder calls
 //
 
-status_t MediaAnalyticsItem::readFromParcel(const Parcel& data) {
+status_t mediametrics::Item::readFromParcel(const Parcel& data) {
     int32_t version;
     status_t status = data.readInt32(&version);
     if (status != NO_ERROR) return status;
@@ -298,7 +298,7 @@
     }
 }
 
-status_t MediaAnalyticsItem::readFromParcel0(const Parcel& data) {
+status_t mediametrics::Item::readFromParcel0(const Parcel& data) {
     const char *s = data.readCString();
     mKey = s == nullptr ? "" : s;
     int32_t pid, uid;
@@ -323,7 +323,7 @@
     return NO_ERROR;
 }
 
-status_t MediaAnalyticsItem::writeToParcel(Parcel *data) const {
+status_t mediametrics::Item::writeToParcel(Parcel *data) const {
     if (data == nullptr) return BAD_VALUE;
 
     const int32_t version = 0;
@@ -339,7 +339,7 @@
     }
 }
 
-status_t MediaAnalyticsItem::writeToParcel0(Parcel *data) const {
+status_t mediametrics::Item::writeToParcel0(Parcel *data) const {
     status_t status =
         data->writeCString(mKey.c_str())
         ?: data->writeInt32(mPid)
@@ -357,20 +357,20 @@
     return NO_ERROR;
 }
 
-const char *MediaAnalyticsItem::toCString() {
+const char *mediametrics::Item::toCString() {
    return toCString(PROTO_LAST);
 }
 
-const char * MediaAnalyticsItem::toCString(int version) {
+const char * mediametrics::Item::toCString(int version) {
     std::string val = toString(version);
     return strdup(val.c_str());
 }
 
-std::string MediaAnalyticsItem::toString() const {
+std::string mediametrics::Item::toString() const {
    return toString(PROTO_LAST);
 }
 
-std::string MediaAnalyticsItem::toString(int version) const {
+std::string mediametrics::Item::toString(int version) const {
     std::string result;
     char buffer[kMaxPropertyStringSize];
 
@@ -388,9 +388,9 @@
 
 // for the lazy, we offer methods that finds the service and
 // calls the appropriate daemon
-bool MediaAnalyticsItem::selfrecord() {
+bool mediametrics::Item::selfrecord() {
     ALOGD_IF(DEBUG_API, "%s: delivering %s", __func__, this->toString().c_str());
-    sp<IMediaAnalyticsService> svc = getInstance();
+    sp<IMediaMetricsService> svc = getInstance();
     if (svc != NULL) {
         status_t status = svc->submit(this);
         if (status != NO_ERROR) {
@@ -403,7 +403,6 @@
     }
 }
 
-namespace mediametrics {
 //static
 bool BaseItem::isEnabled() {
     // completely skip logging from certain UIDs. We do this here
@@ -420,12 +419,12 @@
         return false;
     }
 
-    int enabled = property_get_int32(MediaAnalyticsItem::EnabledProperty, -1);
+    int enabled = property_get_int32(Item::EnabledProperty, -1);
     if (enabled == -1) {
-        enabled = property_get_int32(MediaAnalyticsItem::EnabledPropertyPersist, -1);
+        enabled = property_get_int32(Item::EnabledPropertyPersist, -1);
     }
     if (enabled == -1) {
-        enabled = MediaAnalyticsItem::EnabledProperty_default;
+        enabled = Item::EnabledProperty_default;
     }
     return enabled > 0;
 }
@@ -440,7 +439,7 @@
 
 static sp<MediaMetricsDeathNotifier> sNotifier;
 // static
-sp<IMediaAnalyticsService> BaseItem::sAnalyticsService;
+sp<IMediaMetricsService> BaseItem::sMediaMetricsService;
 static std::mutex sServiceMutex;
 static int sRemainingBindAttempts = SVC_TRIES;
 
@@ -448,20 +447,20 @@
 void BaseItem::dropInstance() {
     std::lock_guard  _l(sServiceMutex);
     sRemainingBindAttempts = SVC_TRIES;
-    sAnalyticsService = nullptr;
+    sMediaMetricsService = nullptr;
 }
 
 // static
 bool BaseItem::submitBuffer(const char *buffer, size_t size) {
 /*
-    MediaAnalyticsItem item;
+    mediametrics::Item item;
     status_t status = item.readFromByteString(buffer, size);
     ALOGD("%s: status:%d, size:%zu, item:%s", __func__, status, size, item.toString().c_str());
     return item.selfrecord();
     */
 
     ALOGD_IF(DEBUG_API, "%s: delivering %zu bytes", __func__, size);
-    sp<IMediaAnalyticsService> svc = getInstance();
+    sp<IMediaMetricsService> svc = getInstance();
     if (svc != nullptr) {
         const status_t status = svc->submitBuffer(buffer, size);
         if (status != NO_ERROR) {
@@ -474,7 +473,7 @@
 }
 
 //static
-sp<IMediaAnalyticsService> BaseItem::getInstance() {
+sp<IMediaMetricsService> BaseItem::getInstance() {
     static const char *servicename = "media.metrics";
     static const bool enabled = isEnabled(); // singleton initialized
 
@@ -486,13 +485,13 @@
     // think of remainingBindAttempts as telling us whether service == nullptr because
     // (1) we haven't tried to initialize it yet
     // (2) we've tried to initialize it, but failed.
-    if (sAnalyticsService == nullptr && sRemainingBindAttempts > 0) {
+    if (sMediaMetricsService == nullptr && sRemainingBindAttempts > 0) {
         const char *badness = "";
         sp<IServiceManager> sm = defaultServiceManager();
         if (sm != nullptr) {
             sp<IBinder> binder = sm->getService(String16(servicename));
             if (binder != nullptr) {
-                sAnalyticsService = interface_cast<IMediaAnalyticsService>(binder);
+                sMediaMetricsService = interface_cast<IMediaMetricsService>(binder);
                 sNotifier = new MediaMetricsDeathNotifier();
                 binder->linkToDeath(sNotifier);
             } else {
@@ -501,7 +500,7 @@
         } else {
             badness = "No Service Manager access";
         }
-        if (sAnalyticsService == nullptr) {
+        if (sMediaMetricsService == nullptr) {
             if (sRemainingBindAttempts > 0) {
                 sRemainingBindAttempts--;
             }
@@ -509,14 +508,13 @@
                     __func__, servicename, badness);
         }
     }
-    return sAnalyticsService;
+    return sMediaMetricsService;
 }
 
-} // namespace mediametrics
 
 // merge the info from 'incoming' into this record.
 // we finish with a union of this+incoming and special handling for collisions
-bool MediaAnalyticsItem::merge(MediaAnalyticsItem *incoming) {
+bool mediametrics::Item::merge(mediametrics::Item *incoming) {
 
     // if I don't have key or session id, take them from incoming
     // 'this' should never be missing both of them...
@@ -623,7 +621,7 @@
 
 } // namespace
 
-status_t MediaAnalyticsItem::writeToByteString(char **pbuffer, size_t *plength) const
+status_t mediametrics::Item::writeToByteString(char **pbuffer, size_t *plength) const
 {
     if (pbuffer == nullptr || plength == nullptr)
         return BAD_VALUE;
@@ -701,7 +699,7 @@
     return NO_ERROR;
 }
 
-status_t MediaAnalyticsItem::readFromByteString(const char *bufferptr, size_t length)
+status_t mediametrics::Item::readFromByteString(const char *bufferptr, size_t length)
 {
     if (bufferptr == nullptr) return BAD_VALUE;
 
@@ -761,7 +759,7 @@
     return NO_ERROR;
 }
 
-status_t MediaAnalyticsItem::Prop::writeToParcel(Parcel *data) const
+status_t mediametrics::Item::Prop::writeToParcel(Parcel *data) const
 {
    switch (mType) {
    case kTypeInt32:
@@ -791,7 +789,7 @@
    }
 }
 
-status_t MediaAnalyticsItem::Prop::readFromParcel(const Parcel& data)
+status_t mediametrics::Item::Prop::readFromParcel(const Parcel& data)
 {
     const char *key = data.readCString();
     if (key == nullptr) return BAD_VALUE;
@@ -834,23 +832,23 @@
     return status;
 }
 
-void MediaAnalyticsItem::Prop::toString(char *buffer, size_t length) const
+void mediametrics::Item::Prop::toString(char *buffer, size_t length) const
 {
     switch (mType) {
     case kTypeInt32:
         snprintf(buffer, length, "%s=%d:", mName, u.int32Value);
         break;
-    case MediaAnalyticsItem::kTypeInt64:
+    case mediametrics::Item::kTypeInt64:
         snprintf(buffer, length, "%s=%lld:", mName, (long long)u.int64Value);
         break;
-    case MediaAnalyticsItem::kTypeDouble:
+    case mediametrics::Item::kTypeDouble:
         snprintf(buffer, length, "%s=%e:", mName, u.doubleValue);
         break;
-    case MediaAnalyticsItem::kTypeRate:
+    case mediametrics::Item::kTypeRate:
         snprintf(buffer, length, "%s=%lld/%lld:",
                 mName, (long long)u.rate.first, (long long)u.rate.second);
         break;
-    case MediaAnalyticsItem::kTypeCString:
+    case mediametrics::Item::kTypeCString:
         // TODO sanitize string for ':' '='
         snprintf(buffer, length, "%s=%s:", mName, u.CStringValue);
         break;
@@ -861,7 +859,7 @@
     }
 }
 
-size_t MediaAnalyticsItem::Prop::getByteStringSize() const
+size_t mediametrics::Item::Prop::getByteStringSize() const
 {
     const size_t header =
         sizeof(uint16_t)      // length
@@ -869,19 +867,19 @@
         + strlen(mName) + 1;  // mName + 0 termination
     size_t payload = 0;
     switch (mType) {
-    case MediaAnalyticsItem::kTypeInt32:
+    case mediametrics::Item::kTypeInt32:
         payload = sizeof(u.int32Value);
         break;
-    case MediaAnalyticsItem::kTypeInt64:
+    case mediametrics::Item::kTypeInt64:
         payload = sizeof(u.int64Value);
         break;
-    case MediaAnalyticsItem::kTypeDouble:
+    case mediametrics::Item::kTypeDouble:
         payload = sizeof(u.doubleValue);
         break;
-    case MediaAnalyticsItem::kTypeRate:
+    case mediametrics::Item::kTypeRate:
         payload = sizeof(u.rate.first) + sizeof(u.rate.second);
         break;
-    case MediaAnalyticsItem::kTypeCString:
+    case mediametrics::Item::kTypeCString:
         payload = strlen(u.CStringValue) + 1;
         break;
     default:
@@ -892,7 +890,6 @@
     return header + payload;
 }
 
-namespace mediametrics {
 
 // TODO: fold into a template later.
 status_t BaseItem::writeToByteString(
@@ -968,9 +965,8 @@
             ?: insert(name, bufferpptr, bufferptrmax);
 }
 
-} // namespace mediametrics
 
-status_t MediaAnalyticsItem::Prop::writeToByteString(
+status_t mediametrics::Item::Prop::writeToByteString(
         char **bufferpptr, char *bufferptrmax) const
 {
     switch (mType) {
@@ -993,7 +989,7 @@
     }
 }
 
-status_t MediaAnalyticsItem::Prop::readFromByteString(
+status_t mediametrics::Item::Prop::readFromByteString(
         const char **bufferpptr, const char *bufferptrmax)
 {
     uint16_t len;
@@ -1036,4 +1032,4 @@
     }
 }
 
-} // namespace android
+} // namespace android::mediametrics
diff --git a/media/libmediametrics/include/IMediaAnalyticsService.h b/media/libmediametrics/include/IMediaMetricsService.h
similarity index 83%
rename from media/libmediametrics/include/IMediaAnalyticsService.h
rename to media/libmediametrics/include/IMediaMetricsService.h
index 30c63e7..d6871ec 100644
--- a/media/libmediametrics/include/IMediaAnalyticsService.h
+++ b/media/libmediametrics/include/IMediaMetricsService.h
@@ -29,15 +29,14 @@
 
 #include <binder/IServiceManager.h>
 
-#include <media/MediaAnalyticsItem.h>
-// nope...#include <media/MediaAnalytics.h>
+#include <media/MediaMetricsItem.h>
 
 namespace android {
 
-class IMediaAnalyticsService: public IInterface
+class IMediaMetricsService: public IInterface
 {
 public:
-    DECLARE_META_INTERFACE(MediaAnalyticsService);
+    DECLARE_META_INTERFACE(MediaMetricsService);
 
     /**
      * Submits the indicated record to the mediaanalytics service, where
@@ -48,14 +47,14 @@
      * \return status which is negative if an error is detected (some errors
                may be silent and return 0 - success).
      */
-    virtual status_t submit(MediaAnalyticsItem *item) = 0;
+    virtual status_t submit(mediametrics::Item *item) = 0;
 
     virtual status_t submitBuffer(const char *buffer, size_t length) = 0;
 };
 
 // ----------------------------------------------------------------------------
 
-class BnMediaAnalyticsService: public BnInterface<IMediaAnalyticsService>
+class BnMediaMetricsService: public BnInterface<IMediaMetricsService>
 {
 public:
     status_t onTransact(uint32_t code,
@@ -66,7 +65,7 @@
 protected:
     // Internal call where release is true if the service is to delete the item.
     virtual status_t submitInternal(
-            MediaAnalyticsItem *item, bool release) = 0;
+            mediametrics::Item *item, bool release) = 0;
 };
 
 }; // namespace android
diff --git a/media/libmediametrics/include/MediaAnalyticsItem.h b/media/libmediametrics/include/MediaMetricsItem.h
similarity index 90%
rename from media/libmediametrics/include/MediaAnalyticsItem.h
rename to media/libmediametrics/include/MediaMetricsItem.h
index bff7c9b..5f33650 100644
--- a/media/libmediametrics/include/MediaAnalyticsItem.h
+++ b/media/libmediametrics/include/MediaMetricsItem.h
@@ -32,7 +32,7 @@
 
 namespace android {
 
-class IMediaAnalyticsService;
+class IMediaMetricsService;
 class Parcel;
 
 /*
@@ -115,8 +115,8 @@
     static const int EnabledProperty_default = 1;
 
     // let's reuse a binder connection
-    static sp<IMediaAnalyticsService> sAnalyticsService;
-    static sp<IMediaAnalyticsService> getInstance();
+    static sp<IMediaMetricsService> sMediaMetricsService;
+    static sp<IMediaMetricsService> getInstance();
     static void dropInstance();
     static bool submitBuffer(const char *buffer, size_t len);
 
@@ -329,26 +329,26 @@
 };
 
 /**
- * MediaMetrics Item is a stack allocated media analytics item used for
+ * MediaMetrics LogItem is a stack allocated media analytics item used for
  * fast logging.  It falls over to a malloc if needed.
  *
  * This is templated with a buffer size to allocate on the stack.
  */
 template <size_t N = 4096>
-class Item : public BufferedItem {
+class LogItem : public BufferedItem {
 public:
-    explicit Item(const std::string key) : Item(key.c_str()) { }
+    explicit LogItem(const std::string key) : LogItem(key.c_str()) { }
 
     // Since this class will not be defined before the base class, we initialize variables
     // in our own order.
-    explicit Item(const char *key) {
+    explicit LogItem(const char *key) {
          mBegin = mBuffer;
          mEnd = mBuffer + N;
          mBaseRealloc = &mReallocPtr;
          init(key);
     }
 
-    ~Item() override {
+    ~LogItem() override {
         if (mReallocPtr != nullptr) { // do the check before calling free to avoid overhead.
             free(mReallocPtr);
         }
@@ -359,18 +359,17 @@
     char mBuffer[N];
 };
 
-} // mediametrics
 
 /**
- * Media Metrics MediaAnalyticsItem
+ * Media Metrics Item
  *
  * A mutable item representing an event or record that will be
  * logged with the Media Metrics service.  For client logging, one should
  * use the mediametrics::Item.
  *
- * The MediaAnalyticsItem is designed for the service as it has getters.
+ * The Item is designed for the service as it has getters.
  */
-class MediaAnalyticsItem : public mediametrics::BaseItem {
+class Item : public mediametrics::BaseItem {
     friend class MediaMetricsJNI;           // TODO: remove this access
 
 public:
@@ -397,14 +396,14 @@
 
     // T must be convertible to mKey
     template <typename T>
-    explicit MediaAnalyticsItem(T key)
+    explicit Item(T key)
         : mKey(key) { }
-    MediaAnalyticsItem() = default;
+    Item() = default;
 
-    MediaAnalyticsItem(const MediaAnalyticsItem&) = delete;
-    MediaAnalyticsItem &operator=(const MediaAnalyticsItem&) = delete;
+    Item(const Item&) = delete;
+    Item &operator=(const Item&) = delete;
 
-    bool operator==(const MediaAnalyticsItem& other) const {
+    bool operator==(const Item& other) const {
         if (mPropCount != other.mPropCount
             || mPid != other.mPid
             || mUid != other.mUid
@@ -418,29 +417,29 @@
          }
          return true;
     }
-    bool operator!=(const MediaAnalyticsItem& other) const {
+    bool operator!=(const Item& other) const {
         return !(*this == other);
     }
 
     template <typename T>
-    static MediaAnalyticsItem* create(T key) {
-        return new MediaAnalyticsItem(key);
+    static Item* create(T key) {
+        return new Item(key);
     }
-    static MediaAnalyticsItem* create() {
-        return new MediaAnalyticsItem();
+    static Item* create() {
+        return new Item();
     }
 
-        static MediaAnalyticsItem* convert(mediametrics_handle_t);
-        static mediametrics_handle_t convert(MediaAnalyticsItem *);
+        static Item* convert(mediametrics_handle_t);
+        static mediametrics_handle_t convert(Item *);
 
         // access functions for the class
-        ~MediaAnalyticsItem();
+        ~Item();
 
         // reset all contents, discarding any extra data
         void clear();
-        MediaAnalyticsItem *dup();
+        Item *dup();
 
-    MediaAnalyticsItem &setKey(const char *key) {
+    Item &setKey(const char *key) {
         mKey = key;
         return *this;
     }
@@ -450,46 +449,46 @@
     size_t count() const { return mPropCount; }
 
     template<typename S, typename T>
-    MediaAnalyticsItem &set(S key, T value) {
+    Item &set(S key, T value) {
         allocateProp(key)->set(value);
         return *this;
     }
 
     // set values appropriately
-    MediaAnalyticsItem &setInt32(const char *key, int32_t value) {
+    Item &setInt32(const char *key, int32_t value) {
         return set(key, value);
     }
-    MediaAnalyticsItem &setInt64(const char *key, int64_t value) {
+    Item &setInt64(const char *key, int64_t value) {
         return set(key, value);
     }
-    MediaAnalyticsItem &setDouble(const char *key, double value) {
+    Item &setDouble(const char *key, double value) {
         return set(key, value);
     }
-    MediaAnalyticsItem &setRate(const char *key, int64_t count, int64_t duration) {
+    Item &setRate(const char *key, int64_t count, int64_t duration) {
         return set(key, std::make_pair(count, duration));
     }
-    MediaAnalyticsItem &setCString(const char *key, const char *value) {
+    Item &setCString(const char *key, const char *value) {
         return set(key, value);
     }
 
     // fused get/add/set; if attr wasn't there, it's a simple set.
     // type-mismatch counts as "wasn't there".
     template<typename S, typename T>
-    MediaAnalyticsItem &add(S key, T value) {
+    Item &add(S key, T value) {
         allocateProp(key)->add(value);
         return *this;
     }
 
-    MediaAnalyticsItem &addInt32(const char *key, int32_t value) {
+    Item &addInt32(const char *key, int32_t value) {
         return add(key, value);
     }
-    MediaAnalyticsItem &addInt64(const char *key, int64_t value) {
+    Item &addInt64(const char *key, int64_t value) {
         return add(key, value);
     }
-    MediaAnalyticsItem &addDouble(const char *key, double value) {
+    Item &addDouble(const char *key, double value) {
         return add(key, value);
     }
-    MediaAnalyticsItem &addRate(const char *key, int64_t count, int64_t duration) {
+    Item &addRate(const char *key, int64_t count, int64_t duration) {
         return add(key, std::make_pair(count, duration));
     }
 
@@ -555,19 +554,19 @@
 
         // timestamp, pid, and uid only used on server side
         // timestamp is in 'nanoseconds, unix time'
-        MediaAnalyticsItem &setTimestamp(nsecs_t);
+        Item &setTimestamp(nsecs_t);
         nsecs_t getTimestamp() const;
 
-        MediaAnalyticsItem &setPid(pid_t);
+        Item &setPid(pid_t);
         pid_t getPid() const;
 
-        MediaAnalyticsItem &setUid(uid_t);
+        Item &setUid(uid_t);
         uid_t getUid() const;
 
-        MediaAnalyticsItem &setPkgName(const std::string &pkgName);
+        Item &setPkgName(const std::string &pkgName);
         std::string getPkgName() const { return mPkgName; }
 
-        MediaAnalyticsItem &setPkgVersionCode(int64_t);
+        Item &setPkgVersionCode(int64_t);
         int64_t getPkgVersionCode() const;
 
     // our serialization code for binder calls
@@ -589,7 +588,7 @@
         // with rules for first/last/add, etc
         // XXX: document semantics and how they are indicated
         // caller continues to own 'incoming'
-        bool merge(MediaAnalyticsItem *incoming);
+        bool merge(Item *incoming);
 
 private:
     // handle Parcel version 0
@@ -712,19 +711,19 @@
 
         template <typename T> void visit(T f) const {
             switch (mType) {
-            case MediaAnalyticsItem::kTypeInt32:
+            case Item::kTypeInt32:
                 f(u.int32Value);
                 return;
-            case MediaAnalyticsItem::kTypeInt64:
+            case Item::kTypeInt64:
                 f(u.int64Value);
                 return;
-            case MediaAnalyticsItem::kTypeDouble:
+            case Item::kTypeDouble:
                 f(u.doubleValue);
                 return;
-            case MediaAnalyticsItem::kTypeRate:
+            case Item::kTypeRate:
                 f(u.rate);
                 return;
-            case MediaAnalyticsItem::kTypeCString:
+            case Item::kTypeCString:
                 f(u.CStringValue);
                 return;
             default:
@@ -885,7 +884,7 @@
 
     class iterator {
     public:
-       iterator(size_t pos, const MediaAnalyticsItem &_item)
+       iterator(size_t pos, const Item &_item)
            : i(std::min(pos, _item.count()))
            , item(_item) { }
        iterator &operator++() {
@@ -901,7 +900,7 @@
 
     private:
       size_t i;
-      const MediaAnalyticsItem &item;
+      const Item &item;
     };
 
     iterator begin() const {
@@ -938,6 +937,7 @@
     nsecs_t       mTimestamp = 0;
 };
 
+} // namespace mediametrics
 } // namespace android
 
 #endif