ETL from FTPS/TXT to LOCAL/REST.mql
ETL script with application 'supervision' compatibility
if (not (group exist "0001_folder1_folder2_folder3")) {
group add "0001_folder1_folder2_folder3";
};
script merge "folder1.folder2.folder3.step_1_source_connect.exe" true 5
(param
)
"Connect to the source"
{
# CONFIGURATION ;
-> "[CONF_NAME_OF_THE_FLOW]" "name_of_the_flow";
-> "[CONF_SOURCE_CM]" "demo_cm";
# INITIALIZATION ;
-> "[FLOW_PID]" [PID];
# HANDLE ;
try {
# Flow initialization;
stack flow_init [FLOW_PID] [CONF_NAME_OF_THE_FLOW] "{}";
stack flow_step [FLOW_PID] 1 "source_connect...";
ftps connect "session_remote" {cm get [CONF_SOURCE_CM];};
#Step 1 is valid;
stack flow_step [FLOW_PID] 1 "source_connect_ok";
include "folder1.folder2.folder3.step_2_extract.exe";
} {
try {ftps disconnect "session_remote";} {} "[err]";
#Step 1 is not valid;
stack flow_step [FLOW_PID] 1 "source_connect_KO";
# Give the error to the stack and stop the process;
exception (1) ([global_err]);
} "[global_err]";
} "Return nothing";
if (not (group is granted script "folder1.folder2.folder3.step_1_source_connect.exe" "0001_folder1_folder2_folder3")) {
group grant script "folder1.folder2.folder3.step_1_source_connect.exe" "0001_folder1_folder2_folder3";
};
script merge "folder1.folder2.folder3.step_2_extract.exe" true 1
(param
)
"Extract files from the source"
{
# CONFIGURATION ;
-> "[CONF_DIR_SOURCE]" "tmp/source";
-> "[CONF_SOURCE_FILTER]" ".*txt";
# HANDLE ;
try {
# Mark the flow as step 2;
stack flow_step [FLOW_PID] 2 "extract...";
# Create the local directory PID;
file mkdir (concat "home/" [FLOW_PID]);
# Get files into PID directory;
log write (concat "Get files from '" [CONF_DIR_SOURCE] "/" [CONF_SOURCE_FILTER] "'.") OK null null;
ftps cd "session_remote" [CONF_DIR_SOURCE];
json load "valid_files" (ftps ls "session_remote" [CONF_SOURCE_FILTER]);
json parse_array "valid_files" "/" "obj" {
-> "[filename]" (json select "obj" /name);
ftps get "session_remote" [filename] (concat "home/" [FLOW_PID] "/" [filename]);
log write (concat "Get file 'home/" [FLOW_PID] "/" [filename] "'.") OK null null;
};
# Delete source file;
json parse_array "valid_files" "/" "obj" {
-> "[filename]" (json select "obj" /name);
ftps rm "session_remote" [filename];
log write (concat "Remove source file '" [CONF_DIR_SOURCE] "/" [filename] "'.") OK null null;
};
} {
try {ftps disconnect "session_remote";} {} "[err]";
#Step 2 is not valid;
stack flow_step [FLOW_PID] 2 "extract_KO";
# Give the error to the stack and stop the process;
exception (1) ([global_err]);
} "[global_err]";
log write (concat (json count "valid_files" /) " file(s) to transform.") OK null null;
if (> (json count "valid_files" /) 0) {
#Step 2 is valid;
stack flow_step [FLOW_PID] 2 (concat "extract_ok_" (json count "valid_files" /) "_files");
json parse_array "valid_files" "/" "obj" {
-> "[filename]" (json select "obj" /name);
stack (date now) "folder1.folder2.folder3.step_3_transform.exe" "[FLOW_PID]" [FLOW_PID] "[filename]" [filename];
};
} {
#Step 2 is valid;
stack flow_step [FLOW_PID] 2 "extract_ok_zero_file";
# No file into the directory;
file delete (concat "home/" [FLOW_PID]);
};
} "Return nothing";
if (not (group is granted script "folder1.folder2.folder3.step_2_extract.exe" "0001_folder1_folder2_folder3")) {
group grant script "folder1.folder2.folder3.step_2_extract.exe" "0001_folder1_folder2_folder3";
};
script merge "folder1.folder2.folder3.step_3_transform.exe" true 1
(param
(var "[FLOW_PID]" {true} "The flow PID" is_null:true is_empty:true "1")
(var "[filename]" {true} "The filename" is_null:true is_empty:true "file.csv")
)
"Transform the file"
{
# CONFIGURATION ;
-> "[CONF_SOURCE_CSV_SEPARATOR]" ",";
-> "[CONF_SOURCE_CSV_QUOTE]" "'";
-> "[CONF_SOURCE_CSV_FORCE_COLUMN]" "A,B,C";
-> "[CONF_SHOW_LOG_BY_NB_ROW]" 100;
# HANDLE ;
try {
# Mark the flow as step 3;
stack flow_step [FLOW_PID] 3 "transform...";
# REST API: don't use step 3;
log write "REST API: don't use step 3" OK null null;
#Step 3 is valid;
stack flow_step [FLOW_PID] 3 "transform_ok";
stack (date now) "folder1.folder2.folder3.step_4_destination_connect.exe" "[FLOW_PID]" [FLOW_PID] "[filename]" [filename];
} {
#Step 3 is not valid;
stack flow_step [FLOW_PID] 3 "transform_KO";
# Give the error to the stack and stop the process;
exception (1) ([global_err]);
} "[global_err]";
} "Return nothing";
if (not (group is granted script "folder1.folder2.folder3.step_3_transform.exe" "0001_folder1_folder2_folder3")) {
group grant script "folder1.folder2.folder3.step_3_transform.exe" "0001_folder1_folder2_folder3";
};
script merge "folder1.folder2.folder3.step_4_destination_connect.exe" true 5
(param
(var "[FLOW_PID]" {true} "The flow PID" is_null:true is_empty:true "1")
(var "[filename]" {true} "The filename" is_null:true is_empty:true "file.xxx")
)
"Connect to the destination"
{
# HANDLE ;
try {
# Flow initialization;
stack flow_step [FLOW_PID] 4 "destination_connect...";
# REST API: don't use step 4;
log write "REST API: don't use step 4" OK null null;
#Step 4 is valid;
stack flow_step [FLOW_PID] 4 "destination_connect_ok";
include "folder1.folder2.folder3.step_5_load.exe";
} {
#Step 4 is not valid;
stack flow_step [FLOW_PID] 4 "destination_connect_KO";
# Give the error to the stack and stop the process;
exception (1) ([global_err]);
} "[global_err]";
} "Return nothing";
if (not (group is granted script "folder1.folder2.folder3.step_4_destination_connect.exe" "0001_folder1_folder2_folder3")) {
group grant script "folder1.folder2.folder3.step_4_destination_connect.exe" "0001_folder1_folder2_folder3";
};
script merge "folder1.folder2.folder3.step_5_load.exe" true 1
(param
)
"Load file to the destination"
{
# CONFIGURATION ;
-> "[CONF_SHOW_LOG_BY_NB_ROW]" 100;
# HANDLE ;
try {
# Mark the flow as step 5;
stack flow_step [FLOW_PID] 5 "load...";
log write (concat "Send data from 'home/" [FLOW_PID] "/" [filename] "' to REST API...") OK null null;
file reader_open "r1_source" (concat "home/" [FLOW_PID] "/" [filename]) TEXT "utf-8";
#Parse the file;
-> "[index]" 0;
-> "[index_all]" 0;
while (is not null (-> "[line_source]" (file reader_get_line "r1_source"));) {
-> "[T_A]" (atom get [line_source] 1 "|");
-> "[T_B]" (atom get [line_source] 2 "|");
-> "[T_C]" (atom get [line_source] 3 "|");
# BEGIN METHOD 1;
json load "header" "{}";
json iobject "header" / "x-user" "admin" STR;
json iobject "header" / "x-password" "pwd" STR;
rest https post "https://localhost:9999/api/addition" (concat "v1=" [T_A] "&v2=" [T_B] "&v3="[T_C]) (json doc "header") "[]";
# END METHOD 1;
# BEGIN METHOD 2;
json load "data" "{}";
json iobject "data" / "A" [T_A] STR;
json iobject "data" / "B" [T_B] STR;
json iobject "data" / "C" [T_C] STR;
rest https_json_post "https://localhost:9999/api/addition" "{}" "[]" (json doc "data");
# END METHOD 2;
++ "[index]";
++ "[index_all]";
if (== [index] [CONF_SHOW_LOG_BY_NB_ROW]) {
-> "[index]" 0;
log write (concat "Current row >>> " [index_all]) OK null null;
};
};
#Close the reader;
file reader_close "r1_source";
log write (concat "Sended.") OK null null;
#Step 5 is valid;
stack flow_step [FLOW_PID] 5 "load_ok";
} {
try {file reader_close "r1_source";} {} "[sub_err]";
#Step 5 is not valid;
stack flow_step [FLOW_PID] 5 "load_KO";
# Give the error to the stack and stop the process;
exception (1) ([global_err]);
} "[global_err]";
} "Return nothing";
if (not (group is granted script "folder1.folder2.folder3.step_5_load.exe" "0001_folder1_folder2_folder3")) {
group grant script "folder1.folder2.folder3.step_5_load.exe" "0001_folder1_folder2_folder3";
};