attempts to validate and construct a messagetype from a read projection schema concode_field_sep Map<String,String> readSupportMetadata concode_elem_sep String PARQUET_READ_SCHEMA concode_elem_sep MessageType requestedSchema concode_field_sep ReadContext init concode_elem_sep ReadContext init concode_elem_sep Map<String,String> getReadSupportMetadata concode_elem_sep RecordMaterializer<T> prepareForRead concode_elem_sep MessageType getRequestedSchema
MessageType function ( MessageType arg0 , String arg1 ) { if ( arg1 == null ) return arg0 ; MessageType loc0 = MessageTypeParser . parseMessageType ( arg1 ) ; return getSchemaForRead ( arg0 , loc0 ) ; }