JP7124384B2 - Telegram Assurance System and Telegram Assurance Method - Google Patents

Description

The present invention relates to a message guarantee system and a message guarantee method, and more particularly to a message guarantee system and a message guarantee method in which a sending side system realizes guarantee type message transmission/reception in consideration of the load status of a receiving side system.

A message assurance system has been proposed that guarantees the arrival of messages to the destination when messages are sent and received between systems. The control for guaranteeing message arrival is performed by the transmitting side system and the receiving side system included in the message guarantee system.

As a control for guaranteeing message arrival, for example, the transmitting side system saves the message to be sent in a storage area such as a database. Until it is confirmed that the response from the transmission destination has been received, the transmission side system reads the electronic message from the storage destination at predetermined intervals and repeatedly executes the retransmission of the read electronic message.

In addition, the receiving side system for the above transmitting side system performs a double transmission check to check whether or not the received message including the resent message is duplicated, and a response message to the received message. is sent.

In the above-described control method for guaranteeing message arrival, the receiving side system receives the request message from the sending side system. Further, while the business application (hereinafter referred to as business AP) processing is being executed, the transmitting system repeatedly retransmits the request message until it is confirmed that the response message has been received.

Repeated resending of the request message may cause the receiving system to receive the resent request message many times, resulting in a high load state. Therefore, it is required that the reception side system checks for double transmission of messages at an appropriate frequency, taking into consideration the situation of the transmission side system that receives the response message.

There is a guaranteed message transmission/reception system that prevents the receiving system from falling into a high load state. In the guarantee type message transmission/reception system, the sending side system resends the request message until the receiving side system returns a response message indicating acceptance of the request message sent from the sending side system.

The receiving side system in the guarantee type message transmitting/receiving system receives a request message and returns a response message indicating that the request message has been received to the sending side system at the timing of starting processing for the request message.

Therefore, useless retransmission of the request message from the transmission side system, which was scheduled to be executed even after the reception side system started processing the request message, is stopped. By stopping useless resending of the request message, an increase in communication traffic between the transmitting side system and the receiving side system is suppressed. Also, an increase in the load on the receiving system due to retransmission of the request message from the transmitting system is suppressed.

Patent Documents 1 and 2 describe techniques related to guaranteed message transmission/reception. Patent Document 1 describes a transaction in a highly reliable distributed processing system that solves the problem of double processing when a request message is delayed due to a network failure or the like and a request message is received after the response message has been deleted. A process control scheme is described.

In addition, in Patent Document 2, a normality monitoring software unit that checks the normality of messages sent and received in the processor is provided separately from the message guarantee in the transmission control procedure, and the reliability in mutual communication between multiple processors is provided. An improved message assurance method is described.

In addition, in Patent Document 3, it is possible to dynamically set the value of the delayed time, which is the waiting time until a transaction is retried, according to the time required for device access, thereby reducing the occurrence of useless bus accesses due to retries. A computer system capable of

Further, in Patent Document 4, retransmission is performed according to the capability of the receiving node to prevent processing delay and increase in power consumption due to useless retransmission. A communication device is described that can eliminate the need to reset a retransmission wait time.

JP 2003-150465 A JP-A-05-120178 JP-A-10-269169 JP 2001-127825 A

However, even in the guaranteed-type message transmission/reception system described above, the request message may response processing may be delayed.

In addition, if the transmission of the response message indicating the processing result for the request message is interrupted due to a failure or the like and the request message is resent by the sending system, the effect of suppressing the increase in communication traffic due to resending is reduced.

Therefore, there is a demand for a message assurance system that allows the sending side system to appropriately resend the request message from the business AP according to the reception status of the response message, and allows the receiving side system to execute the response processing in a low load state.

In the transaction processing control method described in Patent Document 1, even if the business application of the sending system is in the state of analyzing the response message to the receiving side system that processes the request indicated by the received message, The request message is resent. That is, with the transaction processing control method described in Patent Document 1, it is difficult to appropriately resend the request message according to the reception status of the response message at the transmission side system.

In addition, the plurality of processors that perform the message assurance method described in Patent Document 2 are not provided with a mechanism for checking whether or not the received request messages are being processed redundantly. Also, the plurality of processors described in Patent Literature 2 generates a response message each time a request message is received. That is, the plurality of processors described in Patent Document 2 generate the same response message even when a resent request message is received, resulting in redundant response processing.

[Purpose of Invention]
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a message assurance system and message assurance method capable of retransmitting a message without increasing the load on the receiving system.

A message assurance system according to the present invention is a message assurance system including a transmission side system and a reception side system, wherein the transmission side system transmits a request message, which is a message indicating an arbitrary request, to the reception side system. It has a transmitting unit and a retransmitting unit that retransmits a request message that satisfies a predetermined condition to the receiving system. A transmitting side system receives a received message that is a message that indicates the completion of receiving the transmitted request message and the calculated scheduled time. and the predetermined condition is that the current time has passed the scheduled time indicated by the received message corresponding to the request message.

A message assurance method according to the present invention is a message assurance method executed in a message assurance system including a transmitting side system and a receiving side system, wherein the transmitting side system receives a request message which is a message indicating an arbitrary request. The request message that satisfies the specified conditions is sent to the system on the receiving side, and the request message that satisfies the predetermined conditions is sent to the system on the receiving side again . Calculate the scheduled time for completion of processing for the request indicated, and send a received message, which is a message indicating that the reception of the transmitted request message has been completed, and the calculated scheduled time, to the sending system, and meet the predetermined conditions is that the current time has passed the scheduled time indicated by the received message corresponding to the request message.

According to the present invention, messages can be resent without increasing the load on the receiving system.

1 is a block diagram showing a configuration example of a first embodiment of a message assurance system according to the present invention; FIG. FIG. 4 is an explanatory diagram showing an example of a default electronic message format in this embodiment; 4 is an explanatory diagram showing an example of transmission message information stored in a transmission message information storage unit 180; FIG. FIG. 4 is an explanatory diagram showing an example of a message format of a reception response message in this embodiment; 4 is an explanatory diagram showing an example of response message information stored in a response message information storage unit 230; FIG. 4 is a flowchart showing operation of request message transmission processing by a request message transmission unit 120 of the first embodiment; 7 is a flowchart showing operations of transmission determination processing by the double transmission determination unit 130 of the first embodiment; 4 is a flow chart showing operation of response message transmission processing by a response message transmission unit 220 according to the first embodiment; 7 is a flowchart showing the operation of an expected process completion time calculation process by an expected process completion time calculator 240 according to the first embodiment; 4 is a flowchart showing the operation of response message reception processing by the response processing unit 160 of the first embodiment; 6 is a flow chart showing the operation of business response processing by the business response processing unit 170 of the first embodiment; 4 is a flowchart showing operation of request message retransmission processing by a retransmission processing unit 140 according to the first embodiment; 4 is a flowchart showing operations of transmission determination processing by a retransmission determination unit 150 of the first embodiment; FIG. 4 is an explanatory diagram showing a hardware configuration example of a transmission side system according to the present invention; FIG. 4 is an explanatory diagram showing a hardware configuration example of a receiving system according to the present invention; 1 is a block diagram showing an overview of a telegraphic guarantee system according to the present invention; FIG.

Embodiment 1.
[Description of configuration]
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of a first embodiment of a message assurance system according to the present invention.

As shown in FIG. 1, the electronic message assurance system 10 of this embodiment includes a transmitting side system 100 and a receiving side system 200 . In the electronic message assurance system 10 of this embodiment, electronic messages are transmitted and received between the transmitting side system 100 and the receiving side system 200 .

The receiver system 200 of this embodiment receives the request message sent from the sender system 100 . Next, the receiving system 200 predicts the time when the processing for the request indicated by the received request message will be completed.

When returning a response message indicating that the request message has been received to the transmitting side system 100, the receiving side system 200 adds information indicating the estimated time of completion of processing to the returned response message. The transmitting side system 100 resends the request message to the receiving side system 200 after the expected completion time of the processing indicated by the returned response message.

With the above configuration, the amount of communication between the transmitting side system 100 and the receiving side system 200 is reduced. In addition, in the receiving system 200, it becomes possible to execute processing for requests and return business responses in a low-load state.

The electronic message assurance system 10 of the present embodiment is a system that can comprehensively guarantee everything from confirmation of duplication of received electronic messages in electronic message transmission/reception processing to transmission of response electronic messages. In the electronic message guarantee system 10 of the present embodiment, the format of the electronic message exchanged between the business AP of the transmitting system 100 and the business AP of the receiving system 200 is not particularly limited.

The function of each component will be described below. As shown in FIG. 1, the transmitting side system 100 includes a transmitting side business AP 110, a request message transmitting section 120, a double transmission determination section 130, a retransmission processing section 140, a retransmission determination section 150, and a response processing section 160. , a business response processing unit 170 , and a transmission message information storage unit 180 .

Further, as shown in FIG. 1 , the receiver system 200 includes a receiver business AP 210 , a response message transmission unit 220 , a response message information storage unit 230 , and an expected processing completion time calculation unit 240 .

The unidirectional arrows shown in the block diagrams indicate the direction in which data (information) flows. However, the possibility of bi-directional data flow at the locations indicated by the respective arrows is not excluded.

First, the function of each component of the sender system 100 will be described. The sending side business AP 110 is an application that issues a request to the receiving side business AP 210 of the receiving side system 200 .

The request message transmission unit 120 has a function of generating a request message. The request message sending unit 120 generates a request message in accordance with a predetermined message format after being called by the sending-side business AP 110 .

After generating the request message, the request message transmission unit 120 requests the double transmission determination unit 130 to determine whether message transmission is possible. When it is determined that the message can be transmitted, the request message transmission unit 120 stores the transmission message information of the request message to be transmitted in the transmission message information storage unit 180 . After storing, the request message transmitting unit 120 transmits the request message.

On the other hand, when it is determined that the electronic message cannot be transmitted, the request electronic message transmitting unit 120 discards the generated request electronic message and terminates the transmission process.

FIG. 2 is an explanatory diagram showing an example of a default electronic message format in this embodiment. As shown in FIG. 2, the message format consists of message classification, message ID, business processing result, and user message body.

The message category indicates the type of message. Any one of "request", "receipt response", or "business response" is set in the message classification.

The message ID is an ID for uniquely identifying each request message. The message ID is set with a number indicating the order in which the request messages were generated.

Further, the business processing result indicates the result of processing the request by the business AP. Either "OK" or "NG" is set in the business process result. Also, the body of the user message required to generate the message is input to the request message transmission unit 120 by the transmitting side business AP 110 .

FIG. 3 is an explanatory diagram showing an example of transmitted message information stored in the transmitted message information storage unit 180. As shown in FIG. As shown in FIG. 3, the transmitted telegram information is composed of a telegram ID, the body of the telegram, whether or not it can be transmitted, and the next transmission time.

The message ID and the message body are the message ID and the user message body of the message format shown in FIG. 2, respectively. Further, the transmittability is information indicating the determination result of the transmittability of the request message indicated by the message ID. The next transmission time is the scheduled time at which the request message indicated by the message ID will be resent.

The transmission message information stored in the transmission message information storage unit 180 is used for controlling the transmission of the request message. The stored transmission telegram information is read by the retransmission processing unit 140, which will be described later, when retransmitting the request telegram.

The double transmission determination unit 130 has a function of determining whether or not the request message can be transmitted. The caller of the double transmission determination unit 130 inputs the request message to be determined to the double transmission determination unit 130 .

The double transmission determination unit 130 determines all transmission message information having message IDs smaller than the message ID of the request message to be determined among the message IDs of the transmission message information stored in the transmission message information storage unit 180. is compared with the user message body of the request message to be determined.

If the same electronic message body as the user electronic message body is found, the double transmission determination unit 130 returns "transmittable" as a transmission determination result to the caller. Also, if all message bodies are different from the user message body, the double transmission determination unit 130 returns “transmittable” as a transmission determination result to the caller.

When the request message transmitting unit 120 transmits the same request message multiple times, if the second request message is sent before the confirmation of the response to the first request message is completed, the receiving system 200 Excessive load. Therefore, if the same message body as the user message body of the request message to be determined is stored in the transmission message information storage unit 180, the double transmission determination unit 130 returns "transmittable" as the transmission determination result.

The retransmission processing unit 140 reads the transmission message information of the request message for which the response from the receiving system 200 has not yet been confirmed from the time when the transmission side system 100 is activated, from the transmission message information storage unit 180 at predetermined intervals, and reads the read transmission message. It has a function to send a request message corresponding to information.

The retransmission processing unit 140 requests the retransmission determination unit 150 to determine whether transmission is possible before transmitting the request message. When requesting the determination, the retransmission processing unit 140 inputs the transmission message information of the request message to be determined to the retransmission determination unit 150 .

If the determination result by the retransmission determination unit 150 is “transmittable”, the retransmission processing unit 140 retransmits the request message. Further, if the determination result by the retransmission determination unit 150 is "transmittable", the retransmission processing unit 140 does not retransmit the request message.

The retransmission determination unit 150 has a function of determining whether or not the request message can be retransmitted. The retransmission determination unit 150 determines that the request message is “transmittable” when the current time has passed the next transmission time of the input transmission message information. Further, the retransmission determination unit 150 determines that the request message is “transmittable” when the current time has not passed the next transmission time of the input transmission message information.

The response processing unit 160 has a function of receiving two types of response messages returned from the receiver system 200 and performing processing according to each of the received response messages.

The first response message is a reception response message returned from the receiving system 200 upon receipt of the request message. The response processing unit 160 that has received the reception response message updates the next transmission time of the transmission message information including the message ID of the reception response message to the expected processing time of the reception response message in order to stop retransmission of the request message.

FIG. 4 is an explanatory diagram showing an example of a message format of a reception response message in this embodiment. As shown in FIG. 4, the message format of the reception response message consists of a message category, a message ID, and an estimated processing time.

"Received response" is set in the message category of the received response message. The message ID of the request message is set in the message ID of the received response message. In addition, the expected processing time for the request indicated by the request message is set as the expected processing time of the received response message.

The second response message is a business response message including the business processing result by the reception-side business AP 210 . The message format of the business response message is the message format shown in FIG. The response processing unit 160 that has received the business response message inputs the received business response message to the business response processing unit 170 .

The business response processing unit 170 deletes the transmission message information including the message ID of the input business response message from the transmission message information storage unit 180 . After deleting, the business response processing unit 170 calls the sender business AP 110 .

Next, the function of each component of the receiver system 200 will be described. The reception-side business AP 210 has a function of performing business processing for the request indicated by the received request message.

The response message transmission unit 220 has a function of receiving a request message and transmitting a reception response message indicating that the request message has been received. The response message transmission unit 220 confirms that the received message is a request message when the message classification of the received message is set to "request".

The response message sending unit 220 also checks whether or not double processing is being performed, calls the receiving-side business AP 210, and returns a business response message indicating the result of the business processing.

When returning the business response message, the response message transmission unit 220 searches the response message information stored in the response message information storage unit 230 for response message information including the message ID of the request message. FIG. 5 is an explanatory diagram showing an example of response message information stored in the response message information storage unit 230. As shown in FIG. As shown in FIG. 5, the response message information consists of a message ID and a response message body.

The response message information is information of a business response message returned to the transmission side system 100 . The message ID is set to the message ID of the corresponding request message. In addition, the content of the business processing result is set in the body of the response message.

When the reception-side business AP 210 receives a request message for which business processing has already been executed, the response message transmission unit 220 reads response message information including the message ID of the request message from the response message information storage unit 230 . Next, the response message transmitting unit 220 generates a business response message based on the read response message information, and returns the generated business response message to the transmission side system 100 .

After generating the business response message, the response message transmission unit 220 stores the response message information of the generated business response message in the response message information storage unit 230 .

The response message transmission unit 220 also checks whether double processing is being performed in the receiving system 200 based on the response message information stored in the response message information storage unit 230 .

If the response message information including the message ID of the request message is not stored, the response message sending unit 220 determines that the received request message is the first request message. Next, the response message transmission unit 220 calls the reception side business AP 210 and the expected processing completion time calculation unit 240 respectively.

The estimated processing completion time calculation unit 240 has a function of calculating the estimated processing completion time of the task processing for the request indicated by the request message based on the size of the received request message, the load condition of the receiving system 200, and the like. The estimated processing completion time calculator 240 returns the calculated estimated processing completion time to the caller.

The response message transmission unit 220 records the message ID and the estimated processing completion time in the received response message, and transmits the received response message to the transmission side system 100 . After transmitting the reception response message, the response message transmission unit 220 generates a business response message using the business processing result by the reception-side business AP 210 .

Next, the response message sending unit 220 returns the generated business response message to the sending system 100 . If the response message information for the received request message is stored in the response message information storage unit 230, the response message transmission unit 220 determines that the request message has already been processed, and returns only the business response message. good too.

[Explanation of operation]
The operation of the electronic message assurance system 10 of this embodiment will be described below with reference to the flow charts shown in FIGS. 6 to 13. FIG.

First, the operation of request message transmission processing performed when the transmission side business AP 110 of the transmission side system 100 of this embodiment requests the request message transmission unit 120 to transmit a request message will be described with reference to FIG. FIG. 6 is a flowchart showing the operation of request message transmission processing by the request message transmission unit 120 of the first embodiment.

The sending-side business AP 110 inputs the body of the user message to the request message sending unit 120 (step S101). The request message sending unit 120 called from the sending-side business AP 110 generates a request message according to the message format shown in FIG. 2 (step S102).

The request message transmission unit 120 sets “request” to the message category of the generated request message, and sets a unique value in the message transmission/reception processing to the message ID. Further, the request message transmission unit 120 sets the message body input from the sending-side business application 110 to the user message body of the generated request message.

Next, the request message transmission unit 120 requests the double transmission determination unit 130 to determine whether or not the request message generated in step S102 can be transmitted (step S103). The double transmission determination unit 130 returns to the request message transmission unit 120 a transmission determination result indicating whether or not the request message can be transmitted.

If the returned transmission determination result indicates "transmittable" (No in step S104), the request message transmission unit 120 ends the request message transmission process without transmitting the generated request message.

When the returned transmission determination result indicates "transmittable" (Yes in step S104), the request message transmission unit 120 stores the transmission message information of the generated request message in the transmission message information storage unit 180 (step S105). ). The content of the transmission determination result returned in step S103 is set as the transmittability of the stored transmission message information.

After the storage of the transmission message information is completed, the request message transmission unit 120 transmits the generated request message (step S106). After transmitting the request message, the request message sending unit 120 ends the request message sending process.

Next, referring to FIG. 7, the operation of transmission determination processing performed when the request message transmission unit 120 requests the double transmission determination unit 130 to determine whether or not the request message can be transmitted in step S103. explain. FIG. 7 is a flow chart showing the operation of transmission determination processing by the double transmission determination unit 130 of the first embodiment.

The double transmission determination unit 130 compares the user message body of the request message scheduled to be transmitted input from the caller with the message body of the transmission message information stored in the transmission message information storage unit 180 (step S111). . The double transmission determining unit 130 compares all pieces of transmitted message information having message IDs smaller in number than the message ID of the request message.

When making the comparison, the double transmission determining unit 130 checks whether or not there is transmission message information having the same message body. As a result of checking, if there is no transmission message information having the same message body (No in step S112), the double transmission determination unit 130 returns a transmission determination result indicating "sendable" to the caller (step S113). ). After returning, double transmission determination section 130 terminates the transmission determination process.

As a result of checking, if there is transmission message information having the same message body (Yes in step S112), the double transmission determination unit 130 returns a transmission determination result indicating "transmittable" to the caller (step S114). ). After returning, double transmission determination section 130 terminates the transmission determination process.

Next, the operation of response message transmission processing performed by the response message transmission unit 220 of the receiving system 200 of the present embodiment upon reception of a request message will be described with reference to FIG. FIG. 8 is a flowchart showing the operation of response message transmission processing by the response message transmission unit 220 of the first embodiment.

First, the response message transmission unit 220 calls the expected processing completion time calculation unit 240 to acquire the expected processing completion time of the request indicated by the received request message (step S121).

Next, the response message transmission unit 220 generates a reception response message for notifying the transmission side system 100 that the request message has been received. The message format of the generated reception response message is the message format shown in FIG.

The response message transmitting unit 220 sets the message category of the generated received response message to “receipt response”, and sets the message ID of the received request message to the message ID. Further, the response message transmitting unit 220 sets the expected processing completion time acquired in step S121 to the expected processing completion time of the received response message to be generated.

Next, the response message transmission unit 220 transmits the generated reception response message to the transmission side system 100 (step S122).

Next, the response message transmission unit 220 checks whether or not the response message information including the message ID of the received request message is stored in the response message information storage unit 230 (step S123).

If the response message information is not stored (No in step S123), the response message transmission unit 220 calls the receiving-side business AP 210 to execute business processing in response to the request (step S124). After the execution, the reception-side business AP 210 inputs the business processing result to the response message transmission unit 220 .

After receiving the business processing result from the reception-side business AP 210, the response message transmission unit 220 generates a business response message (step S125). The message format of the generated business response message is the message format shown in FIG.

The response message transmitting unit 220 sets the message classification of the generated task response message to “business response” and sets the message ID of the received request message to the message ID. In addition, the response message transmitting unit 220 sets either “OK” or “NG” to the business process result of the business response message to be generated based on the business process result from the reception-side business AP 210 .

After generating the business response message, the response message transmission unit 220 stores the response message information of the generated business response message in the response message information storage unit 230 (step S126). After storing, the response message transmitting unit 220 performs the process of step S127.

If the response message information is stored (Yes in step S123), the response message transmission unit 220 reads the corresponding response message information from the response message information storage unit 230 (step S128). Next, the response message transmitting unit 220 generates a business response message based on the read response message information (step S129). After generation, the response message transmission unit 220 performs the process of step S127.

In step S<b>127 , the response message transmission unit 220 transmits the generated business response message to the transmission side system 100 . After the transmission, the response message transmission unit 220 terminates the response message transmission process.

Next, the operation of the expected process completion time calculation process performed when the response message transmission unit 220 calls the expected process completion time calculation unit 240 in step S121 will be described with reference to FIG. FIG. 9 is a flow chart showing the operation of the expected process completion time calculation process by the expected process completion time calculator 240 of the first embodiment.

First, the estimated processing completion time calculator 240 acquires information indicating the load status of the receiving system 200 (step S131).

Next, the estimated processing completion time calculation unit 240 calculates an estimated processing completion time based on the acquired information indicating the load status of the receiving system 200 and the size of the received request message (step S132).

Next, the estimated processing completion time calculator 240 returns the calculated estimated processing completion time to the caller (step S133). After returning, the estimated processing completion time calculation unit 240 terminates the estimated processing completion time calculation processing.

Next, the operation of response message reception processing performed when the response processing unit 160 of the transmission side system 100 of this embodiment receives a response message will be described with reference to FIG. FIG. 10 is a flowchart showing the operation of response message reception processing by the response processing unit 160 of the first embodiment.

The response processing unit 160 receives two types of response messages, a received response message and a business response message. When receiving a response message, the response processing unit 160 confirms the type of the received response message by message category (step S141).

If the confirmed message classification is "reception response" (reception response message in step S141), the response processing unit 160 sets the next transmission time of the transmission message information corresponding to the request message to stop retransmission of the request message. , to the expected processing completion time of the received response message (step S142). After updating, the response processing unit 160 terminates the response message reception process.

If the confirmed message classification is "business response" (business response message in step S141), the response processing unit 160 calls the business response processing unit 170 (step S143). After calling, the response processing unit 160 ends the response message reception processing.

Next, the operation of business response processing performed by the business response processing unit 170 called by the response processing unit 160 in step S143 will be described with reference to FIG. FIG. 11 is a flow chart showing the operation of business response processing by the business response processing unit 170 of the first embodiment.

The business response processing unit 170 deletes the transmission message information including the message ID of the received business response message from the transmission message information storage unit 180 (step S151).

Next, the business response processing unit 170 calls the sender business AP 110 (step S152). After calling, the business response processing unit 170 ends the business response processing.

Next, the operation of request message resend processing performed when the resend processing unit 140 of the transmission side system 100 of this embodiment resends a request message will be described with reference to FIG. FIG. 12 is a flow chart showing operation of request message retransmission processing by the retransmission processing unit 140 of the first embodiment.

First, the retransmission processing unit 140 reads one transmission message information stored in the transmission message information storage unit 180 (step S161).

Next, the retransmission processing unit 140 requests the retransmission determination unit 150 to determine whether or not the request message corresponding to the transmission message information read in step S161 can be transmitted (step S162). Next, the retransmission determination unit 150 returns to the retransmission processing unit 140 a transmission determination result indicating whether or not the request message can be transmitted.

If the returned transmission determination result indicates "transmittable" (No in step S163), the retransmission processing unit 140 ends the request message retransmission process without retransmitting the request message corresponding to the read transmission message information. do.

If the returned transmission determination result indicates "transmittable" (Yes in step S163), the retransmission processing unit 140 stores the transmission message information determination result read in step S161 in the transmission message information storage unit 180. is updated to "sendable" (step S164).

After updating the determination result of the transmission message information, the retransmission processing unit 140 retransmits the request message corresponding to the updated transmission message information to the receiving system 200 (step S165). After resending, the resending processing unit 140 ends the request message resending process.

The retransmission processing unit 140 repeatedly executes the request message retransmission processing shown in FIG. 12 for all pieces of transmission message information stored in the transmission message information storage unit 180 . Further, the retransmission processing unit 140 may use a timer or the like to execute the request message retransmission processing shown in FIG. 12 at predetermined time intervals after the transmission side system 100 is activated.

Next, the operation of transmission determination processing performed when the retransmission processing unit 140 requests the retransmission determination unit 150 to determine whether or not the request message can be transmitted in step S162 will be described with reference to FIG. FIG. 13 is a flowchart showing operations of transmission determination processing by the retransmission determination unit 150 of the first embodiment.

The retransmission determination unit 150 compares the current time with the next transmission time of the transmission message information of the request message input from the caller (step S171).

As a result of the comparison, if the current time has passed the next transmission time (Yes in step S172), the retransmission determination unit 150 returns a transmission determination result indicating "transmittable" to the caller (step S173). After returning, the retransmission determination unit 150 terminates the transmission determination process.

As a result of the comparison, if the current time has not passed the next transmission time (No in step S172), the retransmission determination unit 150 returns a transmission determination result indicating "transmittable" to the caller (step S174). After returning, the retransmission determination unit 150 terminates the transmission determination process.

[Explanation of effect]
The retransmission processing unit 140 of the transmission-side system 100 of this embodiment can appropriately transmit the request message according to the expected processing completion time indicated by the received response message. That is, the transmission side system 100 can reduce the amount of unnecessary communication caused by retransmission of messages and multiple transmissions of the same message by the transmission side business AP 110 . Therefore, the receiving system 200 can also return a response message in a low load state.

The receiver system 200 of the message assurance system 10 of this embodiment also has a response message information storage unit 230 in which information of response messages to request messages once processed is stored in the form of a file or the like. When the same request message is received, the receiver system 200 reads the stored information, generates a response message, and returns the generated response message.

That is, the efficiency of response processing by the receiving system 200 of this embodiment is greater than the efficiency of response processing by a plurality of processors described in Patent Document 2. The receiving system 200 can also check whether or not double processing is being performed based on the response message information stored in the response message information storage unit 230 .

In the techniques described in Patent Documents 3 and 4, the estimated processing completion time is predicted on the transmitting side. In this embodiment, the estimated processing completion time calculator 240 estimates the estimated processing completion time in consideration of the load status of the receiving system 200 . That is, since a more accurate expected processing completion time is predicted, communication between systems is controlled more appropriately.

INDUSTRIAL APPLICABILITY The present invention is preferably used for reducing the amount of communication between existing legacy systems in which it is difficult to modify business APs.

A specific example of the hardware configuration of the transmitting side system 100 of this embodiment and a specific example of the hardware configuration of the receiving side system 200 of this embodiment will be described below.

FIG. 14 is an explanatory diagram showing a hardware configuration example of the transmission side system according to the present invention.
A transmission side system 100 shown in FIG. Further, an input unit 105 for user operation and an output unit 106 for presenting the processing result or the progress of the processing content to the user may be provided.

FIG. 15 is an explanatory diagram showing a hardware configuration example of the receiving system according to the present invention. A receiving system 200 shown in FIG. Further, an input unit 205 for user operation and an output unit 206 for presenting the processing result or the progress of the processing content to the user may be provided.

The main storage unit 102 and the main storage unit 202 are used as a data work area and a data temporary save area. The main storage unit 102 and the main storage unit 202 are, for example, RAM (Random Access Memory).

The communication units 103 and 203 have the function of inputting and outputting data with peripheral devices via a wired network or a wireless network (information communication network).

Auxiliary storage unit 104 and auxiliary storage unit 204 are non-temporary tangible storage media. Non-temporary tangible storage media include, for example, magnetic disks, magneto-optical disks, CD-ROMs (Compact Disk Read Only Memory), DVD-ROMs (Digital Versatile Disk Read Only Memory), and semiconductor memories.

The input unit 105 and the input unit 205 have functions for inputting data and processing instructions. The input unit 105 and the input unit 205 are input devices such as keyboards and mice.

The output unit 106 and the output unit 206 have a function of outputting data. The output unit 106 and the output unit 206 are, for example, a display device such as a liquid crystal display device, or a printing device such as a printer.

In addition, as shown in FIG. 14, each component in the transmitting system 100 is connected to the system bus 107 . In addition, as shown in FIG. 15, each component in the receiving system 200 is connected to a system bus 207 .

The auxiliary storage unit 104 includes, for example, the transmitting side business AP 110, the request message transmission unit 120, the double transmission determination unit 130, the retransmission processing unit 140, the retransmission determination unit 150, the response processing unit 160, and the business response processing unit shown in FIG. A program for realizing 170 is stored.

Also, the main storage unit 102 is used as a storage area of the transmission message information storage unit 180, for example. Also, the request message transmission unit 120 , the retransmission processing unit 140 , and the response processing unit 160 may perform communication processing via the communication unit 103 .

Note that the transmitting system 100 may be realized by hardware. For example, the transmission-side system 100 may be implemented with a circuit that includes hardware components such as LSI (Large Scale Integration) in which a program that implements the functions shown in FIG. 1 is installed.

Further, the transmission side system 100 may be implemented by software by executing a program that provides the functions of the components shown in FIG. 1 by the CPU 101 shown in FIG.

When implemented by software, the CPU 101 loads a program stored in the auxiliary storage unit 104 into the main storage unit 102, executes it, and controls the operation of the transmitting system 100, thereby realizing each function by software. be done.

The auxiliary storage unit 204 stores, for example, a program for realizing the reception-side business AP 210, the response message transmission unit 220, and the expected processing completion time calculation unit 240 shown in FIG.

Also, the main storage unit 202 is used as a storage area for the response message information storage unit 230, for example. Also, the response message transmission unit 220 may execute communication processing via the communication unit 203 .

Note that the receiving system 200 may be realized by hardware. For example, the receiver system 200 may be implemented with a circuit including a hardware component such as an LSI in which a program that implements the functions shown in FIG. 1 is installed.

Receiving-side system 200 may also be realized by software by executing a program that provides the functions of the components shown in FIG. 1 by CPU 201 shown in FIG.

When implemented by software, the CPU 201 loads a program stored in the auxiliary storage unit 204 into the main storage unit 202, executes it, and controls the operation of the receiving system 200, whereby each function is implemented by software. be done.

Also, part or all of each component may be realized by a general-purpose circuit, a dedicated circuit, a processor, etc., or a combination thereof. These may be composed of a single chip, or may be composed of multiple chips connected via a bus. A part or all of each component may be implemented by a combination of the above-described circuit or the like and a program.

When a part or all of each component is realized by a plurality of information processing devices, circuits, etc., the plurality of information processing devices, circuits, etc. may be arranged centrally or distributedly. For example, the information processing device, circuits, and the like may be implemented as a client-and-server system, a cloud computing system, or the like, each of which is connected via a communication network.

Next, an outline of the present invention will be described. FIG. 16 is a block diagram showing an outline of a message guarantee system according to the present invention. A message assurance system 20 according to the present invention is a message assurance system including a sender system 30 (for example, a sender system 100) and a receiver system 40 (for example, a receiver system 200). , a first transmission unit 31 (for example, the request message transmission unit 120) that transmits a request message, which is a message indicating an arbitrary request, to the receiving system 40; and a retransmission unit 32 (for example, a retransmission processing unit 140 and a retransmission determination unit 150). It has a second transmission unit 41 (for example, a response message transmission unit 220) that transmits a received message, which is a message indicating a scheduled time at which processing for the request indicated by the message will be completed, to the transmission side system 30, and the predetermined condition is: It means that the current time has passed the scheduled time indicated by the received message corresponding to the request message.

With such a configuration, the message guarantee system can resend the message without increasing the load on the receiving system. The electronic message assurance system 20 shown in FIG. 16 is a guarantee-type electronic message transmission/reception system that can appropriately transmit/receive electronic messages.

Further, the transmitting system 30 has a first storage unit (for example, the transmission message information storage unit 180) that stores transmission message information that is information indicating the transmitted request message, and the resending unit 32 stores A request message to be sent again may be generated using the transmission message information that is present.

With such a configuration, the electronic message assurance system can efficiently generate a retransmission message.

The second transmission unit 41 also transmits a response message, which is a message indicating the result of processing for the request indicated by the request message, to the transmission-side system 30, and the first transmission unit 31 transmits the request based on the transmitted response message. The transmitted message information of the message may be deleted from the first storage unit.

With such a configuration, the message assurance system can prevent useless retransmission of request messages.

In addition, the receiving system 40 has a second storage unit (for example, the response message information storage unit 230) that stores response message information that is information indicating the transmitted response message, and the second transmission unit 41 stores A response message to be transmitted may be generated using the received response message information.

With such a configuration, the message assurance system can efficiently generate a response message.

Further, the first transmission unit 31 may stop transmitting the request message indicating the same request as the request indicated by the stored transmission message information.

With such a configuration, the message assurance system can prevent unnecessary transmission of request messages.

In addition, the second transmission unit 41 may include the scheduled time according to the load status of the receiving system 40 in the received message. Alternatively, the second transmission unit 41 may transmit the received telegram before the business application processes the request.

Further, the transmission-side system 30 may include a retransmission determination unit (for example, the retransmission determination unit 150) that determines whether retransmission is possible before the retransmission processing by the retransmission unit 32 is executed.

10, 20 message guarantee system 30, 100 transmitting side system 40, 200 receiving side system 31 first transmitting section 32 retransmitting section 41 second transmitting section 101, 201 CPU
102, 202 Main storage units 103, 203 Communication units 104, 204 Auxiliary storage units 105, 205 Input units 106, 206 Output units 107, 207 System bus 110 Transmitting business AP
120 Request message transmission unit 130 Double transmission determination unit 140 Retransmission processing unit 150 Retransmission determination unit 160 Response processing unit 170 Business response processing unit 180 Transmission message information storage unit 210 Receiving side business application
220 response message transmission unit 230 response message information storage unit 240 expected processing completion time calculation unit

Claims (10)

A message assurance system including a sending side system and a receiving side system,
The sending system,
a first transmission unit that transmits a request message, which is a message indicating an arbitrary request, to the receiving system;
a retransmitting unit that retransmits a request message that satisfies a predetermined condition to the receiving system;
The receiving system,
a calculation unit that calculates a scheduled time to complete processing of a request indicated by a request message transmitted from the transmission-side system based on information indicating the load status of the reception-side system;
PreviousRecordCompletion of reception of the transmitted request message, andcalculatedA second transmission unit that transmits a received message, which is a message indicating the scheduled time, to the transmission side systemWhenhas
The predetermined condition is
The current time has passed the scheduled time indicated by the received message corresponding to the request message.
A message assurance system characterized by: The transmission-side system has a first storage unit that stores transmission message information, which is information indicating the transmitted request message,
2. The message assurance system according to claim 1, wherein the resending unit generates a request message to be resent using stored transmission message information. The second transmission unit transmits a response message, which is a message indicating the result of processing for the request indicated by the request message, to the transmission side system,
The message assurance system according to claim 2, wherein the first transmission unit deletes the transmission message information of the request message from the first storage unit based on the transmitted response message. The receiving system has a second storage unit that stores response message information that is information indicating the transmitted response message,
4. The message assurance system according to claim 3, wherein the second transmission unit generates a response message to be transmitted using stored response message information. The message assurance system according to any one of claims 2 to 4, wherein the first transmission unit suspends transmission of the request message indicating the same request as the request indicated by the stored transmission message information. A message assurance method executed in a message assurance system including a transmitting side system and a receiving side system,
The sending system,
Sending a request message, which is a message indicating an arbitrary request, to the receiving system;
retransmitting a request message that satisfies a predetermined condition to the receiving system;
The receiving system,
calculating, based on the information indicating the load status of the receiving system, the scheduled completion time for the request indicated by the request message transmitted from the transmitting system;
PreviousRecordCompletion of reception of the transmitted request message, andcalculatedsending a received message, which is a message indicating the scheduled time, to the transmitting system;
The predetermined condition is
The current time has passed the scheduled time indicated by the received message corresponding to the request message.
A message assurance method characterized by: The sending system
Store transmission telegram information, which is information indicating the transmitted request telegram, in the first storage unit;
7. The message assurance method according to claim 6, wherein a request message to be resent is generated using stored transmission message information. The receiving system transmits a response message, which is a message indicating the result of processing for the request indicated by the request message, to the transmitting system,
8. The message assurance method according to claim 7, wherein the transmission side system deletes the transmission message information of the request message from the first storage unit based on the transmitted response message. The receiving system
Store response telegram information, which is information indicating the transmitted response telegram, in the second storage unit;
The message assurance method according to claim 8, wherein a response message to be transmitted is generated using stored response message information. 10. The message assurance method according to any one of claims 7 to 9, wherein the transmission side system suspends transmission of the request message indicating the same request as the request indicated by the stored transmission message information.

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