Diploma Thesis Santiago Gómez Sáez - IAAS

B.1. Normalized Message Format Content Description
68 if source is sql
69 - src_main_info_structure_name : string
70 - target_main_info_structure_name : string
71 if source is nosql
72 - src_main_info_structure_name : string
73 - target_main_info_structure_name : string
74 - src_secondary_info_structure_name : string
75 - target_secondary_info_structure_name : string
76
77 // Attachment
78 - if target_op_status == error
79 - target_op_error : vector // map of error code and
80 else
81
82
error message per backend db
83 - if source protocol == mysql
84
85 - vector // result sets are
86
inserted as arraylist in the body
87 - ResultSetMetadata: Vector
88 - columncount : int // number of columns in this ResultSet
object.
89 - columntype : arraylist // the designated column’s SQL type.
90 - isnullable : arraylist // if the column can contain null
values
91 - isAutoIncrement : arraylist // if the column values
increment when the rows do
92 - tableName : arraylist // name of the table where a
column is contained
93 - stringcolumnlabel : arraylist // label which sql proposes
for printing reasons
94 - stringcolumnname : arraylist // column name
95 - ColumnDisplaySize : arraylist // Indicates the designated
column’s normal maximum width in characters.
96 - Scale : arraylist // column’s number of digits to right
of the decimal point
97 - RowCount : int // number of rows
98 - ColumnMapper : Hashmap (column index, name) // mapping of the
column index with the column name
99 - ColumnSigned : arraylist // if the values of the columns
100 else
101 - versionControl
102 - nosql metadata
are signed or unsigned
103 - nosql JSON payload
104
105 ////////////////////////////////////////////////////////////////////////
106
107 Note: response to the user -> distributed atomic transaction mechanism used. If one of
the backend datasources reports an error as a response, the final response to the
tenant is an error response:
108
109 - Error response: string of the error + the datasource/s which gave the error.
97