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ETL_FTP_EXCELX_FTP_EXCEL.mql | MQL Samples | MentDB Weak Server

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...";

		ftp 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 {ftp 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]" "*xlsx";
	
	# 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;
		ftp cd "session_remote" [CONF_DIR_SOURCE];
		json load "valid_files" (ftp ls "session_remote" [CONF_SOURCE_FILTER]);
		json parse_array "valid_files" "/" "obj" {

			-> "[filename]" (json select "obj" /name);
			ftp 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);
			ftp rm file "session_remote" [filename];
			log write (concat "Remove source file '" [CONF_DIR_SOURCE] "/" [filename] "'.") OK null null;

		};
	
	} {

		try {ftp 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.xxx")
  )
  "Transform the file"
{

	# CONFIGURATION ;
	-> "[CONF_DESTINATION_NEW_FILENAME]" (concat "new_filename_" (date systimestamp_min) ".xls");
	-> "[CONF_DESTINATION_SHEETNAME]" "sheet1";
	
	# HANDLE ;
	try {

		# Mark the flow as step 3;
		stack flow_step [FLOW_PID] 3 "transform...";

		excel load empty "flow";
		excel sheet add "flow" [CONF_DESTINATION_SHEETNAME];
		
		log write (concat "Build the file 'home/" [FLOW_PID] "/" [CONF_DESTINATION_NEW_FILENAME] "' from 'home/" [FLOW_PID] "/" [filename] "'...") OK null null;
		
		excel cell set "flow" [CONF_DESTINATION_SHEETNAME] 0 0 "ColNameA" STR;
		excel cell set "flow" [CONF_DESTINATION_SHEETNAME] 0 1 "ColNameB" STR;
		excel cell set "flow" [CONF_DESTINATION_SHEETNAME] 0 2 "ColNameC" STR;

		excelx load "ex_source" (concat "home/" [FLOW_PID] "/" [filename]);

		-> "[index]" 1;
		-> "[nb_ex_source]" (excelx sheet max_row "ex_source" "sheet1");
		for (-> "[i_excel_source]" 1) (<= [i_excel_source] [nb_ex_source]) (++ "[i_excel_source]") {
		
			-> "[T_A]" (excelx cell get "ex_source" "sheet1" [i_excel_source] 0);
			-> "[T_B]" (excelx cell get "ex_source" "sheet1" [i_excel_source] 1);
			-> "[T_C]" (excelx cell get "ex_source" "sheet1" [i_excel_source] 2);

			excel cell set "flow" [CONF_DESTINATION_SHEETNAME] [index] 0 [T_A] STR;
			excel cell set "flow" [CONF_DESTINATION_SHEETNAME] [index] 1 [T_B] STR;
			excel cell set "flow" [CONF_DESTINATION_SHEETNAME] [index] 2 [T_C] STR;
			
			++ "[index]";
		
		};
		
		excelx close "ex_source";

		excel save "flow" (concat "home/" [FLOW_PID] "/" [CONF_DESTINATION_NEW_FILENAME]);
		excel close "flow";

		log write (concat "Builded.") 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]" [CONF_DESTINATION_NEW_FILENAME];
	
	} {

		try {excel close "flow";} {} "[err]";
		try {excelx close "ex_source";} {} "[sub_err]";

		#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"
{

	# CONFIGURATION ;
	-> "[CONF_DESTINATION_CM]" "demo_cm";
	
	# HANDLE ;
	try {
	
		# Flow initialization;
		stack flow_step [FLOW_PID] 4 "destination_connect...";

		ftp connect "destination_sess" {cm get [CONF_DESTINATION_CM];};
		ftp active "destination_sess";
		ftp passive "destination_sess";
		ftp active compression "destination_sess" true;
		ftp set type "destination_sess" "BINARY";
		
		#Step 4 is valid;
		stack flow_step [FLOW_PID] 4 "destination_connect_ok";
		
		include "folder1.folder2.folder3.step_5_load.exe";
	
	} {

		try {ftp disconnect "destination_sess";} {} "[err]";

		#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_DIR_DESTINATION]" "/remote/dir";
	
	# HANDLE ;
	try {
	
		ftp cd "destination_sess" [CONF_DIR_DESTINATION];

		# Mark the flow as step 5;
		stack flow_step [FLOW_PID] 5 "load...";
		
		log write (concat "Send '" (concat "home/" [FLOW_PID] "/" [filename]) "' to '" (concat [CONF_DIR_DESTINATION] "/" [filename]) "' ...") OK null null;

		# Send file into the destination directory;
		ftp put "destination_sess" (concat "home/" [FLOW_PID] "/" [filename]) "RESUME";
		
		log write "Sended." OK null null;

		ftp disconnect "destination_sess";
		
		#Step 5 is valid;
		stack flow_step [FLOW_PID] 5 "load_ok";
		
	} {
	
		try {ftp disconnect "destination_sess";} {} "[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";
};
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