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combined-MySQL.sql
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-- This is an amalgamation of all MySQL scripts
--- User Message Queues tables
DROP TABLE IF EXISTS `umq_messages`, `umq_conversations`, `umq_services`, `umq_queues`;
CREATE TABLE `umq_queues` (
`id` INT NOT NULL AUTO_INCREMENT
, `name` VARCHAR(255) NOT NULL
, PRIMARY KEY (`id`)
, UNIQUE KEY (`name`)
) ENGINE=InnoDB;
CREATE TABLE `umq_services` (
`id` INT NOT NULL AUTO_INCREMENT
, `name` VARCHAR(255) NOT NULL
, `queue_id` INT NOT NULL
, PRIMARY KEY (`id`)
, UNIQUE KEY (`name`)
, FOREIGN KEY (`queue_id`) REFERENCES `umq_queues`(`id`)
) ENGINE=InnoDB;
CREATE TABLE `umq_conversations` (
`id` INT NOT NULL AUTO_INCREMENT
, `status` INT NOT NULL DEFAULT (0)
, `service_id` INT NOT NULL
, `far_service_id` INT NOT NULL
, `created_at` TIMESTAMP(3) NOT NULL
, PRIMARY KEY (`id`)
, FOREIGN KEY (`service_id`) REFERENCES `umq_services`(`id`)
, FOREIGN KEY (`far_service_id`) REFERENCES `umq_services`(`id`)
) ENGINE=InnoDB;
CREATE TABLE `umq_messages` (
`id` INT NOT NULL AUTO_INCREMENT
, `status` INT NOT NULL DEFAULT (0)
, `conversation_id` INT NOT NULL
, `service_id` INT NOT NULL
, `queue_id` INT NOT NULL
, `message_type` VARCHAR(255) NOT NULL
, `message_body` LONGTEXT NOT NULL
, `created_at` TIMESTAMP(3) NOT NULL
, PRIMARY KEY (`id`)
, FOREIGN KEY (`conversation_id`) REFERENCES `umq_conversations`(`id`)
, FOREIGN KEY (`service_id`) REFERENCES `umq_services`(`id`)
, FOREIGN KEY (`queue_id`) REFERENCES `umq_queues`(`id`)
) ENGINE=InnoDB;
SET SQL_SAFE_UPDATES = 0;
DROP PROCEDURE IF EXISTS `usp_umq_setup_service`;
/*
CALL `usp_umq_setup_service`(NULL, NULL, NULL);
CALL `usp_umq_setup_service`(NULL, NULL, 'DROP_ONLY');
CALL `usp_umq_setup_service`('UcsFpTargetQueue/ZK123456', 'UcsFpTargetService/ZK123456', NULL);
CALL `usp_umq_setup_service`('UcsFpTargetQueue/WQW-PC/6D4F07/wqw-pc/UcsFPHub', 'UcsFpTargetService/WQW-PC/6D4F07/wqw-pc/UcsFPHub', 'DROP_ONLY');
*/
DELIMITER $$
CREATE PROCEDURE `usp_umq_setup_service` (
IN `@queue_name` VARCHAR(128)
, IN `@svc_name` VARCHAR(128)
, IN `@mode` VARCHAR(20)
) BEGIN
/*------------------------------------------------------------------------
'
' UcsFPHub (c) 2019 by Unicontsoft
'
' Unicontsoft Fiscal Printers Hub
'
' This project is licensed under the terms of the MIT license
' See the LICENSE file in the project root for more information
'
------------------------------------------------------------------------*/
DECLARE `@service_id` INT;
DECLARE `@queue_id` INT;
SET `@queue_name` = COALESCE(NULLIF(`@queue_name`, ''), CONCAT('UcsFpInitiator', 'Queue', '/', CONNECTION_ID()));
SET `@svc_name` = COALESCE(NULLIF(`@svc_name`, ''), CONCAT('UcsFpInitiator', 'Service', '/', CONNECTION_ID()));
SET `@mode` = COALESCE(`@mode`, '');
SET `@service_id` = (SELECT `id` FROM `umq_services` WHERE `name` = `@svc_name`);
SET `@queue_id` = (SELECT `id` FROM `umq_queues` WHERE `name` = `@queue_name`);
IF `@service_id` IS NOT NULL AND `@mode` IN ('DROP_SERVICE', 'DROP_EXISTING', 'DROP_ONLY')
THEN
DELETE FROM `umq_messages`
WHERE `service_id` = `@service_id`;
DELETE FROM `umq_messages`
WHERE `conversation_id` IN (SELECT `id` FROM `umq_conversations` WHERE `service_id` = `@service_id`);
DELETE FROM `umq_messages`
WHERE `conversation_id` IN (SELECT `id` FROM `umq_conversations` WHERE `far_service_id` = `@service_id`);
DELETE FROM `umq_conversations`
WHERE `service_id` = `@service_id`;
DELETE FROM `umq_conversations`
WHERE `far_service_id` = `@service_id`;
DELETE FROM `umq_services`
WHERE `id` = `@service_id`;
END IF;
IF `@queue_id` IS NOT NULL AND `@mode` IN ('DROP_EXISTING', 'DROP_ONLY')
THEN
DELETE FROM `umq_messages`
WHERE `queue_id` = `@queue_id`;
DELETE FROM `umq_messages`
WHERE `service_id` IN (SELECT `id` FROM `umq_services` WHERE `queue_id` = `@queue_id`);
DELETE FROM `umq_messages`
WHERE `conversation_id` IN (SELECT `id` FROM `umq_conversations` WHERE `service_id` IN (SELECT `id` FROM `umq_services` WHERE `queue_id` = `@queue_id`));
DELETE FROM `umq_messages`
WHERE `conversation_id` IN (SELECT `id` FROM `umq_conversations` WHERE `far_service_id` IN (SELECT `id` FROM `umq_services` WHERE `queue_id` = `@queue_id`));
DELETE FROM `umq_conversations`
WHERE `service_id` IN (SELECT `id` FROM `umq_services` WHERE `queue_id` = `@queue_id`);
DELETE FROM `umq_conversations`
WHERE `far_service_id` IN (SELECT `id` FROM `umq_services` WHERE `queue_id` = `@queue_id`);
DELETE FROM `umq_services`
WHERE `queue_id` = `@queue_id`;
DELETE FROM `umq_queues`
WHERE `id` = `@queue_id`;
END IF;
IF NOT EXISTS (SELECT 0 FROM `umq_queues` WHERE `name` = `@queue_name`)
AND `@mode` NOT IN ('DROP_ONLY')
THEN
INSERT INTO `umq_queues`(`name`)
SELECT `@queue_name`;
END IF;
IF NOT EXISTS (SELECT 0 FROM `umq_services` WHERE `name` = `@svc_name`)
AND `@mode` NOT IN ('DROP_ONLY')
THEN
INSERT INTO `umq_services`(`name`, `queue_id`)
SELECT `@svc_name`
, (SELECT `id` FROM `umq_queues` WHERE `name` = `@queue_name`) AS `queue_id`;
END IF;
-- cleanup complete conversations and delivered messages after 30 minutes
DELETE FROM `umq_messages` WHERE `status` <> 0 AND CURRENT_TIMESTAMP(3) > TIMESTAMPADD(MINUTE, 30, `created_at`);
DELETE FROM `umq_conversations` WHERE `status` <> 0 AND CURRENT_TIMESTAMP(3) > TIMESTAMPADD(MINUTE, 30, `created_at`);
END $$
DELIMITER ;
SET SQL_SAFE_UPDATES=0;
DROP PROCEDURE IF EXISTS `usp_umq_send`;
/*
CALL `usp_umq_setup_service`(NULL, NULL, NULL);
CALL `usp_umq_send`('{ "Url": "/printers" }', @response, 'UcsFpTargetService/ZK133759', 30000, @handle, @result);
SELECT @result, @handle, @response;
CALL `usp_umq_send`('{ "Url": "/printers/ZK133759/status" }', @response, 'UcsFpTargetService/ZK133759', 30000, @handle, @result);
SELECT @result, @handle, @response;
*/
DELIMITER $$
CREATE PROCEDURE `usp_umq_send` (
IN `@request` LONGTEXT
, OUT `@response` LONGTEXT
, IN `@target_svc` VARCHAR(128)
, IN `@timeout` INT
, OUT `@handle` INT
, OUT `@retval` INT
) PROC:BEGIN
/*------------------------------------------------------------------------
'
' UcsFPHub (c) 2019 by Unicontsoft
'
' Unicontsoft Fiscal Printers Hub
'
' This project is licensed under the terms of the MIT license
' See the LICENSE file in the project root for more information
'
------------------------------------------------------------------------*/
DECLARE `@queue_name` VARCHAR(128);
DECLARE `@svc_name` VARCHAR(128);
DECLARE `@service_id` INT;
DECLARE `@queue_id` INT;
DECLARE `@far_service_id` INT;
DECLARE `@far_queue_id` INT;
DECLARE `@conv_id` INT;
DECLARE `@msg_id` INT;
DECLARE `@msg_type` VARCHAR(255);
DECLARE `@msg_body` LONGTEXT;
DECLARE `@start_time` TIMESTAMP(3);
SET `@retval` = 0;
SET `@queue_name` = COALESCE(NULLIF(`@queue_name`, ''), CONCAT('UcsFpInitiator', 'Queue', '/', CONNECTION_ID()));
SET `@svc_name` = COALESCE(NULLIF(`@svc_name`, ''), CONCAT('UcsFpInitiator', 'Service', '/', CONNECTION_ID()));
SET `@service_id` = (SELECT `id` FROM `umq_services` WHERE `name` = `@svc_name`);
SET `@queue_id` = (SELECT `queue_id` FROM `umq_services` WHERE `name` = `@svc_name`);
SET `@far_service_id` = (SELECT `id` FROM `umq_services` WHERE `name` = `@target_svc`);
SET `@far_queue_id` = (SELECT `queue_id` FROM `umq_services` WHERE `name` = `@target_svc`);
IF `@handle` IS NOT NULL
THEN
SET `@conv_id` = `@handle`;
ELSE
-- begin conversation
INSERT `umq_conversations`(`service_id`, `far_service_id`, `created_at`)
SELECT `@service_id` AS `service_id`
, `@far_service_id` AS `far_service_id`
, CURRENT_TIMESTAMP(3) AS `created_at`;
SET `@conv_id` = LAST_INSERT_ID();
END IF;
IF `@request` IS NULL
THEN
-- send on conversation '__FIN__'
INSERT `umq_messages`(`conversation_id`, `service_id`, `queue_id`, `message_type`, `message_body`, `created_at`)
SELECT `@conv_id` AS `conversation_id`
, `@far_service_id` AS `service_id`
, `@far_queue_id` AS `queue_id`
, 'DEFAULT' AS `message_type`
, '__FIN__' AS `message_body`
, CURRENT_TIMESTAMP(3) AS `created_at`;
-- end conversation
UPDATE `umq_conversations`
SET `status` = 1
WHERE `id` = `@conv_id`;
LEAVE PROC;
END IF;
-- send on conversation '__PING__'
INSERT `umq_messages`(`conversation_id`, `service_id`, `queue_id`, `message_type`, `message_body`, `created_at`)
SELECT `@conv_id` AS `conversation_id`
, `@far_service_id` AS `service_id`
, `@far_queue_id` AS `queue_id`
, 'DEFAULT' AS `message_type`
, '__PING__' AS `message_body`
, CURRENT_TIMESTAMP(3) AS `created_at`;
-- waitfor receive '__PONG__'
SET `@msg_body` = '';
WHILE `@msg_body` <> '__PONG__'
DO
SET `@start_time` = CURRENT_TIMESTAMP(3);
SET `@msg_id` = NULL;
SET `@msg_type` = '';
SET `@msg_body` = '';
WHILE `@msg_id` IS NULL
AND CURRENT_TIMESTAMP(3) < TIMESTAMPADD(SECOND, 0.1, `@start_time`)
DO
SELECT `id`, `message_type`, `message_body`
INTO `@msg_id`, `@msg_type`, `@msg_body`
FROM `umq_messages`
WHERE `queue_id` = `@queue_id`
AND `status` = 0
ORDER BY `id`
LIMIT 1 FOR UPDATE SKIP LOCKED;
IF `@msg_id` IS NULL
THEN
DO SLEEP(0.001);
END IF;
END WHILE;
IF `@msg_id` IS NULL
THEN
-- end conversation
UPDATE `umq_conversations`
SET `status` = 1
WHERE `id` = `@conv_id`;
SET `@response` = 'Timeout #1';
SET `@retval` = 1;
LEAVE PROC;
END IF;
UPDATE `umq_messages`
SET `status` = 1
WHERE `id` = `@msg_id`;
END WHILE;
-- send on conversation `@request`
INSERT `umq_messages`(`conversation_id`, `service_id`, `queue_id`, `message_type`, `message_body`, `created_at`)
SELECT `@conv_id` AS `conversation_id`
, `@far_service_id` AS `service_id`
, `@far_queue_id` AS `queue_id`
, 'DEFAULT' AS `message_type`
, `@request` AS `message_body`
, CURRENT_TIMESTAMP(3) AS `created_at`;
-- waitfor receive `@response`
SET `@start_time` = CURRENT_TIMESTAMP(3);
SET `@msg_id` = NULL;
SET `@msg_type` = '';
SET `@msg_body` = '';
WHILE `@msg_id` IS NULL
AND CURRENT_TIMESTAMP(3) < TIMESTAMPADD(SECOND, `@timeout` / 1000, `@start_time`)
DO
SELECT `id`, `message_type`, `message_body`
INTO `@msg_id`, `@msg_type`, `@msg_body`
FROM `umq_messages`
WHERE `queue_id` = `@queue_id`
AND `status` = 0
ORDER BY `id`
LIMIT 1 FOR UPDATE SKIP LOCKED;
IF `@msg_id` IS NULL
THEN
DO SLEEP(0.001);
END IF;
END WHILE;
IF `@msg_id` IS NULL
THEN
-- end conversation
UPDATE `umq_conversations`
SET `status` = 1
WHERE `id` = `@conv_id`;
SET `@response` = 'Timeout #2';
SET `@retval` = 1;
LEAVE PROC;
END IF;
UPDATE `umq_messages`
SET `status` = 1
WHERE `id` = `@msg_id`;
-- can signal transport error
IF `@msg_type` <> 'DEFAULT'
THEN
UPDATE `umq_conversations`
SET `status` = 1
WHERE `id` = `@conv_id`;
SET `@response` = `@msg_body`;
SET `@retval` = 1;
LEAVE PROC;
END IF;
SET `@response` = `@msg_body`;
SET `@handle` = `@conv_id`;
LEAVE PROC;
END $$
DELIMITER ;
SET SQL_SAFE_UPDATES=0;
DROP PROCEDURE IF EXISTS `usp_umq_wait_request`;
/*
CALL `usp_umq_setup_service`('UcsFpTargetQueue/DEV-PC/1234', 'UcsFpTargetService/ZK123456', NULL);
CALL `usp_umq_wait_request`('UcsFpTargetQueue/DEV-PC/1234', 1000, @handle, @request, @svc_name, @error_text, @result);
INSERT `umq_messages`(`conversation_id`, `service_id`, `queue_id`, `message_type`, `message_body`, `created_at`)
SELECT @handle AS `conversation_id`
, (SELECT `id` FROM umq_services WHERE `name` = @svc_name) AS `service_id`
, (SELECT `queue_id` FROM umq_services WHERE `name` = @svc_name) AS `queue_id`
, 'DEFAULT' AS `message_type`
, CONCAT('Time is ', CURRENT_TIMESTAMP(3)) AS `message_body`
, CURRENT_TIMESTAMP(3) AS `created_at`;
*/
DELIMITER $$
CREATE PROCEDURE `usp_umq_wait_request` (
IN `@queue_name` VARCHAR(128)
, IN `@timeout` INT
, OUT `@handle` INT
, OUT `@request` LONGTEXT
, OUT `@svc_name` VARCHAR(128)
, OUT `@error_text` VARCHAR(256)
, OUT `@retval` INT
) PROC:BEGIN
/*------------------------------------------------------------------------
'
' UcsFPHub (c) 2019 by Unicontsoft
'
' Unicontsoft Fiscal Printers Hub
'
' This project is licensed under the terms of the MIT license
' See the LICENSE file in the project root for more information
'
------------------------------------------------------------------------*/
DECLARE `@queue_id` INT;
DECLARE `@msg_id` INT;
DECLARE `@msg_type` VARCHAR(255);
DECLARE `@msg_body` LONGTEXT;
DECLARE `@conv_id` INT;
DECLARE `@start_time` TIMESTAMP(3);
DECLARE `@conv_status` INT;
DECLARE `@conv_service_id` INT;
SET `@retval` = 0;
SET `@queue_id` = (SELECT `id` FROM `umq_queues` WHERE `name` = `@queue_name`);
BODY:BEGIN
IF `@queue_id` IS NULL
THEN
SET `@error_text` = 'Queue not found';
SET `@retval` = 98;
LEAVE BODY;
END IF;
WHILE 1=1
DO
-- waitfor receive `@response`
SET `@start_time` = CURRENT_TIMESTAMP(3);
SET `@msg_id` = NULL;
SET `@msg_type` = '';
SET `@msg_body` = '';
WHILE `@msg_id` IS NULL
AND CURRENT_TIMESTAMP(3) < TIMESTAMPADD(SECOND, `@timeout` / 1000, `@start_time`)
DO
SELECT `id`, `message_type`, `message_body`, `conversation_id`
INTO `@msg_id`, `@msg_type`, `@msg_body`, `@conv_id`
FROM `umq_messages`
WHERE `queue_id` = `@queue_id`
AND `status` = 0
ORDER BY `id`
LIMIT 1 FOR UPDATE SKIP LOCKED;
IF `@msg_id` IS NULL
THEN
DO SLEEP(0.001);
END IF;
END WHILE;
IF `@msg_id` IS NULL
THEN
SET `@error_text` = 'Timeout';
SET `@retval` = 99;
LEAVE BODY;
END IF;
UPDATE `umq_messages`
SET `status` = 1
WHERE `id` = `@msg_id`;
IF `@msg_body` = '__FIN__'
THEN
-- do nothing (repeat waitfor)
SET `@msg_body` = NULL;
ELSE
SET `@conv_status` = NULL;
SELECT `status`, `service_id`
INTO `@conv_status`, `@conv_service_id`
FROM `umq_conversations`
WHERE `id` = `@conv_id`;
-- SELECT `@msg_id`, `@conv_status`, `@conv_service_id`, `@msg_type`, `@msg_body`;
IF `@conv_status` = 0
THEN
IF `@msg_body` = '__PING__'
THEN
-- send on conversation '__PONG__'
INSERT `umq_messages`(`conversation_id`, `service_id`, `queue_id`, `message_type`, `message_body`, `created_at`)
SELECT `@conv_id` AS `conversation_id`
, `@conv_service_id` AS `service_id`
, (SELECT `queue_id` FROM `umq_services` WHERE `id` = `@conv_service_id`) AS `queue_id`
, 'DEFAULT' AS `message_type`
, '__PONG__' AS `message_body`
, CURRENT_TIMESTAMP(3) AS `created_at`;
ELSE
SET `@handle` = `@conv_id`;
SET `@svc_name` = (SELECT `name` FROM `umq_services` WHERE `id` = `@conv_service_id`);
IF `@msg_type` <> 'DEFAULT'
THEN
SET `@error_text` = `@msg_body`;
SET `@retval` = 1;
LEAVE BODY;
END IF;
SET `@request` = `@msg_body`;
LEAVE BODY;
END IF;
END IF;
END IF;
END WHILE;
END;
SELECT `@handle` AS Handle, `@request` AS Request, `@svc_name` AS SvcName, `@error_text` AS ErrorText, `@retval` AS Result;
END $$
DELIMITER ;
SET SQL_SAFE_UPDATES=0;
DROP PROCEDURE IF EXISTS `usp_umq_test`;
-- CALL `usp_umq_setup_service`('UcsFpTargetQueue/DEV-PC/1234', 'UcsFpTargetService/ZK123456', NULL);
-- CALL `usp_umq_test`
DELIMITER $$
CREATE PROCEDURE `usp_umq_test` ()
BEGIN
WHILE 1=1
DO
CALL `usp_umq_wait_request`('UcsFpTargetQueue/DEV-PC/1234', 5000, @handle, @request, @svc_name, @error_text, @result);
IF @result = 0
THEN
INSERT `umq_messages`(`conversation_id`, `service_id`, `queue_id`, `message_type`, `message_body`, `created_at`)
SELECT @handle AS `conversation_id`
, (SELECT `id` FROM umq_services WHERE `name` = @svc_name) AS `service_id`
, (SELECT `queue_id` FROM umq_services WHERE `name` = @svc_name) AS `queue_id`
, 'DEFAULT' AS `message_type`
, CONCAT('Time is ', CURRENT_TIMESTAMP(3)) AS `message_body`
, CURRENT_TIMESTAMP(3) AS `created_at`;
END IF;
END WHILE;
END $$
DELIMITER ;