question: how many files are in the key-value cache . concode_field_sep String TAG concode_elem_sep int maxKeyValueCacheBytes concode_elem_sep int DEFAULT_MAX_KEY_VALUE_CACHE_BYTES concode_elem_sep int maxKeyValueCacheFiles concode_elem_sep String DIR_NAME concode_elem_sep int DEFAULT_MAX_KEY_VALUE_CACHE_FILES concode_elem_sep File directory concode_elem_sep Object MUTEX_IO concode_field_sep JSONObject jsonFromKeyValueCache concode_elem_sep File createKeyValueCacheFile concode_elem_sep String loadFromKeyValueCache concode_elem_sep void saveToKeyValueCache concode_elem_sep void initialize concode_elem_sep void initialize concode_elem_sep File getKeyValueCacheDir concode_elem_sep void clearFromKeyValueCache concode_elem_sep File getKeyValueCacheFile concode_elem_sep long getKeyValueCacheAge concode_elem_sep void clearKeyValueCacheDir
target: int function ( ) { File [ ] loc0 = getKeyValueCacheDir ( ) . listFiles ( ) ; if ( loc0 == null ) { return 0 ; } return loc0 . length ; }