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Commit b4aa69fd authored by kyle_tso's avatar kyle_tso
Browse files

Support scanDirectories with JNI callback function 



MtpServer needs this function to update the database for directory
copy operation.

Test: Call this function from MtpServer and database is updated in
directory copy scenario.

Change-Id: I9b316f4dbf7f35922292c33ab02f9efebc867aa8
Signed-off-by: default avatarkyle_tso <kyle_tso@htc.com>
parent e887e2b9

media/java/android/mtp/MtpDatabase.java

+6 −0
Original line number Original line Diff line number Diff line
@@ -421,6 +421,12 @@ public class MtpDatabase implements AutoCloseable { 
        }

        }

    }

    }





    private void doScanDirectory(String path) {

        String[] scanPath;

        scanPath = new String[] { path };

        mMediaScanner.scanDirectories(scanPath);

    }



    private Cursor createObjectQuery(int storageID, int format, int parent) throws RemoteException {

    private Cursor createObjectQuery(int storageID, int format, int parent) throws RemoteException {

        String where;

        String where;

        String[] whereArgs;

        String[] whereArgs;

media/jni/android_mtp_MtpDatabase.cpp

+18 −0
Original line number Original line Diff line number Diff line
@@ -55,6 +55,7 @@ using namespace android; 




static jmethodID method_beginSendObject;

static jmethodID method_beginSendObject;

static jmethodID method_endSendObject;

static jmethodID method_endSendObject;

static jmethodID method_doScanDirectory;

static jmethodID method_getObjectList;

static jmethodID method_getObjectList;

static jmethodID method_getNumObjects;

static jmethodID method_getNumObjects;

static jmethodID method_getSupportedPlaybackFormats;

static jmethodID method_getSupportedPlaybackFormats;
@@ -119,6 +120,8 @@ public: 
                                            MtpObjectFormat format,

                                            MtpObjectFormat format,

                                            bool succeeded);

                                            bool succeeded);





    virtual void                    doScanDirectory(const char* path);



    virtual MtpObjectHandleList*    getObjectList(MtpStorageID storageID,

    virtual MtpObjectHandleList*    getObjectList(MtpStorageID storageID,

                                    MtpObjectFormat format,

                                    MtpObjectFormat format,

                                    MtpObjectHandle parent);

                                    MtpObjectHandle parent);
@@ -265,6 +268,16 @@ void MyMtpDatabase::endSendObject(const char* path, MtpObjectHandle handle, 
    checkAndClearExceptionFromCallback(env, __FUNCTION__);

    checkAndClearExceptionFromCallback(env, __FUNCTION__);

}

}





void MyMtpDatabase::doScanDirectory(const char* path) {

    JNIEnv* env = AndroidRuntime::getJNIEnv();

    jstring pathStr = env->NewStringUTF(path);

    env->CallVoidMethod(mDatabase, method_doScanDirectory, pathStr);



    if (pathStr)

        env->DeleteLocalRef(pathStr);

    checkAndClearExceptionFromCallback(env, __FUNCTION__);

}



MtpObjectHandleList* MyMtpDatabase::getObjectList(MtpStorageID storageID,

MtpObjectHandleList* MyMtpDatabase::getObjectList(MtpStorageID storageID,

                                                  MtpObjectFormat format,

                                                  MtpObjectFormat format,

                                                  MtpObjectHandle parent) {

                                                  MtpObjectHandle parent) {
@@ -1308,6 +1321,11 @@ int register_android_mtp_MtpDatabase(JNIEnv *env) 
        ALOGE("Can't find endSendObject");

        ALOGE("Can't find endSendObject");

        return -1;

        return -1;

    }

    }

    method_doScanDirectory = env->GetMethodID(clazz, "doScanDirectory", "(Ljava/lang/String;)V");

    if (method_doScanDirectory == NULL) {

        ALOGE("Can't find doScanDirectory");

        return -1;

    }

    method_getObjectList = env->GetMethodID(clazz, "getObjectList", "(III)[I");

    method_getObjectList = env->GetMethodID(clazz, "getObjectList", "(III)[I");

    if (method_getObjectList == NULL) {

    if (method_getObjectList == NULL) {

        ALOGE("Can't find getObjectList");

        ALOGE("Can't find getObjectList");