JP2002049597A - Communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication device of a low communication cost which can suppress the using frequency of communication channel that is necessary for monitoring the state of a server computer. SOLUTION: A processing request part 10 of a client computer 101 requests an arithmetic processing to a server computer 104. The computer 104 calculates the total processing time via a work application processing part 17 which carries out the arithmetic processing requested by the part 10 and on the basis of the processing time required for the arithmetic processing predicted from the actual past processing time and also the processing time required for the processing request that is kept in a processing standby state. Then the computer 104 notifies the computer 101 of the calculated total processing time. The computer 101 receives the total processing time required for completing the arithmetic processing that is predicted by the computer 104 and predicts the time when the arithmetic processing of the computer 104 is completed. An answer reception part 12 is started at the predicted time to receive the arithmetic processing result from the server 104.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a communication device,
In particular, the present invention relates to an asynchronous communication device between a client and a server.

[0002]

2. Description of the Related Art JP-A-9-34762 discloses that a client computer issues a reservation processing request to a server computer, and the server computer stores the processing result until a request from the client computer is issued. A system is shown in which the computer can execute another task without being aware of the processing progress of the server computer.

[0003]

In the above prior art, it is necessary for the client computer to be connected to the server computer and to constantly monitor the state of the server computer. For example, the client computer can be carried outdoors using a public line. When used as a terminal, communication costs increase. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a low-cost communication device that suppresses the use of a line for monitoring the state of a server computer.

[0004]

The present invention employs the following means in order to solve the above-mentioned problems.

[0005] The processing request section of the client computer requests the server computer to perform arithmetic processing. The server computer is
A business application processing unit for executing the arithmetic processing requested by the processing request unit; and a business request management unit. The business request management unit is in a processing time required for the arithmetic processing predicted from past processing time results and in a processing waiting state. Calculate the total processing time based on the processing time required for the processing request,
Notify the client computer of the calculated total processing time.
The client computer receives the total processing time required until the completion of the arithmetic processing predicted by the server, predicts the time at which the arithmetic processing of the server ends, activates a response receiving unit at the predicted time, and executes the arithmetic processing from the server. Receive the result.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a diagram showing a communication device according to an embodiment of the present invention. In the figure, reference numeral 10 denotes a processing request unit of the client computer 101, which sends a processing request to the business application processing unit 17 of the server computer 104. A prediction completion time monitoring unit 11 receives the total processing time predicted by the server computer, and calculates a prediction completion time, which is the time at which the processing of the server computer 104 is completed, based on the received total processing time. When the predicted completion time elapses, the response receiving unit 12 is activated. 1
A response receiving unit 2 requests the server computer 104 to transmit a processing result of the business application processing unit 17. A client application processing result display unit 13 displays the received processing result of the business application processing unit 17. Reference numeral 14 denotes a message management unit on the client computer side.
02 and the processing result reception queue 103, and controls connection and disconnection of the line.

Reference numeral 15 denotes a message management unit on the server computer 104 side, which manages the message reception queue 105 and the processing result transmission queue 106 and controls connection and disconnection of a line. Reference numeral 16 denotes a business request management unit, which calculates the estimated completion time of the processing of the business application processing unit 17, that is, the total processing time by referring to the processing time database 108 and the waiting time database 109, and notifies the client computer 101 of the calculation result. I do. Reference numeral 17 denotes a business application processing unit which processes a processing request transmitted from the client computer with reference to the business database 107. Reference numeral 18 denotes a business application processing time monitoring unit that monitors the processing time of the business application processing unit. Reference numeral 19 denotes a business application waiting time management unit. The processing time database 108 and the waiting time are used when the business application processing unit 17 starts and ends processing. Update the database 109.

Reference numeral 101 denotes a client computer; 102, a message transmission queue for temporarily storing processing requests transmitted by the processing request unit 10 of the client computer; 103, a processing result reception queue for temporarily storing processing results received from the server computer 104; Is a message reception queue for temporarily storing the processing request received from the client computer; 106, a processing result transmission queue for temporarily storing the processing result processed by the business application processing unit 17;
Is a business database used by the business application 17, 108 is a processing time database storing the required processing time of each application, and 109 is a waiting time database storing the required processing time of the application in the processing waiting state.

FIG. 12 shows the format of a database. FIG. 12 (a) shows the format of a processing time database, and FIG. 12 (b) shows the format of a waiting time database. As shown in the figure, the processing time database (a) has an access request type,
The waiting time database (b) includes a reservation ID, an execution sequence number, and a predicted processing time which is a cumulative value of the waiting time of each application.

FIG. 13 is a diagram showing a message format. FIG. 13A shows a processing request message transmitted from a client computer, FIG. 13B shows a processing time notification message transmitted from a server computer, and FIG. A transmission request message transmitted by the client computer when the scheduled end time comes, and FIG. 4D is a processing result message transmitted by the server computer. As shown in the figure, the processing request message (a) includes a request ID, access request type, database identification information, and access condition information set for each processing request. The processing time notification message (b) includes a request ID, a reservation ID assigned by the server computer, and a total processing time.
The transmission request message (c) includes the reservation ID. The processing result message (d) includes a reservation ID and a processing result processed by the server computer.

FIG. 2 shows a processing request unit 1 of the client computer.
It is a figure showing processing of 0. When receiving the user's instruction, the processing request unit 10 determines whether the instruction is a business instruction or a transmission instruction.
, A processing request is issued to instruct the message management unit 14 of the client computer to perform a message creation process shown in FIG. If the instruction is a transmission instruction, in step 202, the message management unit is instructed to transmit the created message.

FIG. 3 is a diagram showing the processing of the prediction completion time monitoring unit 11 of the client computer. In the process 302, the prediction completion time monitoring unit 11 calculates the prediction completion time by adding the current time to the entire processing time indicated in the processing time notification message shown in FIG. 13B received from the server computer. Next, it waits for the prediction completion time to arrive, and when the prediction completion time arrives, starts the response receiving unit 12.

FIG. 4 shows a response receiving section 1 of the client computer.
FIG. 9 is a diagram showing a process 2; When receiving the activation signal from the prediction completion time monitoring unit 11, the response receiving unit 12
A transmission request message shown in (c) is created and transmitted to the server computer.

FIG. 5 is a diagram showing the processing of the processing result display section 13 of the client computer. When receiving the user's instruction, the processing result display unit 13 acquires the processing result from the processing result receiving queue and displays the acquired processing result.

FIG. 6 is a diagram showing the processing of the message management unit 14 of the client computer. Message management unit 14
Creates a processing request message with a request ID as shown in FIG.
In step 2, the created message is stored in the message transmission queue 102. In the process of transmitting a message in the process 611, the process first connects to the server computer 104 and transmits the message. In process 612, the process waits for reception of the predicted completion time data of the process of the business application 17 transmitted by the business request management unit 16, and upon receiving the predicted completion time data, activates the predicted completion time monitoring unit and establishes a connection with the server computer. Disconnect. In a process 621, a process of receiving a process result is performed. First, it connects to the server computer 104 and transmits a transmission request message shown in FIG. Next, a response from the server computer is received. It is determined whether or not there is a message for notifying the processing time in the received response. If there is a message, re-monitoring is started.
3 and then cut off the connection with the server computer.
In step 631, reference processing of the processing result is performed. First, a message is obtained from the processing result reception queue 103, and then the obtained message is transmitted to the result display unit 13.

FIG. 7 shows the message management unit 1 of the server computer.
FIG. 9 is a diagram illustrating a process 5; In step 701, a message receiving process starts. First, a reservation ID is assigned to the message received from the client computer, and the message assigned in the process 702 is assigned to the message reception queue 10.
5, and then activates the business request management unit 16. In a process 711, a message reference process is started. First, a message is obtained from the message reception queue 105,
The acquired message is transferred to the business application processing unit 17
Send to In a process 721, a process result storing process is started. First, a processing result is obtained from the business application processing unit 17. Next, a processing result message shown in FIG. 13D is created based on the obtained processing result, and processing 7 is performed.
At 22, the created message is stored in the processing result transmission queue 106. In a process 731, a process result transmission process is started. First, in process 732, FIG.
Receiving the processing request message shown in FIG. Next, the reservation ID included in the message is extracted, and it is determined whether or not the processing result message specified by the reservation ID is accumulated in the transmission queue 106. If the processing result is stored, the processing result message is transmitted. Otherwise, the remaining processing time is calculated from the waiting time database and
A processing time notification message shown in (b) is created, and the message is transmitted to the client computer.

FIG. 8 shows the business request management unit 16 of the server computer.
It is a figure which shows the process of. In process 801, the process of the business request management unit is started, and first, a waiting time is calculated. The waiting time is stored in the waiting time database 109 in FIG.
Referring to the waiting time data shown in (b), the database 109 is searched for the estimated processing time of all the messages currently waiting to be processed. Next, in step 802, a processing time is calculated. The processing time is obtained by searching the processing time database 108 storing the processing time data shown in FIG. 12A using the access request type, the database identification information, and the access condition for each processing request as a search key. Next, a total processing time is calculated by adding the waiting time and the processing time, and a total processing time notification message shown in FIG. 13B is created. Next, in step 803, the message is transmitted to the client computer. At the same time, it requests the business request management unit to update the waiting time database 109 and the processing time database 108.

FIG. 9 is a diagram showing the processing of the business application processing unit 17 of the server computer. In a process 901, the process of the business application is started. First, it waits for the arrival of a processing request message by referring to the message in the message reception queue 105. Processing 902 when there is a processing request
, The requested processing is started, and the start of the processing is notified to the business application processing time monitoring unit 18. Next, the operation database 107 is accessed to obtain a processing result. Next, in step 903, the end of the processing is notified to the business application processing time monitoring unit. Next, the processing result transmission queue 1 of the processing result is sent to the message transmitting unit.
06 is requested.

FIG. 10 is a diagram showing the processing of the business application waiting time management unit 19 of the server computer. Processing 1
At 001, the process of the business application waiting time management unit is started. First, it is determined whether the database update request received from the business request management unit is a record addition request or a record deletion request of a completed process,
If the request is an addition request, the record requested in the process 1002 is added. If the request is a deletion request, the record of the process completed in the process 1003 is deleted.

FIG. 11 is a diagram showing the processing of the business application processing time monitoring unit 18 of the server computer. Processing 1
In 101, the processing of the business application processing time monitoring unit is started. First, a start time of an application process is obtained, and a process completion notification is obtained in a process 1103 to wait for the completion of the process, and a process completion time is obtained.
In processing 1102, a processing time is calculated, and a processing completion time and a processing start time are obtained. Next, the record of the processing time database 108 is updated with the calculated processing time. Next, the business application waiting time management unit is started, and the completed record in the waiting time database is deleted.

Next, the overall operation will be described. First, the processing request unit 10 of the client computer 101 receives a business instruction to the server computer 104 and issues a processing request to the message management unit 14 (processing 201). The message management unit 14 assigns a processing request ID to each processing request, and stores the processing request with the ID added as a processing request transmission message (FIG. 13A) in a message transmission queue (processing 602). Further, upon receiving the server transmission instruction, the processing request unit 10 requests the message management unit 14 for server transmission (process 202). Upon receiving the request, the message management unit 14 connects to the server computer, and collectively transmits all the messages stored in the message transmission queue 102 to the message management unit 15 of the server computer. Wait (process 612).

Message management unit 1 of server computer 104
5 receives a message, assigns a unique reservation ID to all messages managed by the server computer 104 to each message, accumulates the assigned message in the message reception queue 105, and activates the business request management unit 16 (processing). 702).

The business request management unit 16 acquires, from the waiting time database 109, the total of the estimated processing times of all the messages currently waiting for processing as the waiting time, and calculates the estimated processing time for each requested message as the processing time. A search is made from the database, and the total processing time is calculated by adding it to the waiting time (processing 802). Further, a processing time notification message shown in FIG. This series of processing is repeated until all request messages are completed, and when the processing of all request messages is completed, the created processing time notification message is notified to the message management unit 14 (processing 803). Further, the estimated processing time of each retrieved message is stored in the waiting time database through the business application waiting time management unit 19 (processing 1002).

The business application processing unit 17 repeatedly refers to the message reception queue through the message management unit 15 to see if there is a processing request message in the message reception queue, and notifies the business application processing time monitoring unit 18 of the start of processing when the message is stored. (Step 902). The business application processing unit 17 accesses the business database 107 according to the processing request and outputs the processing result, and then notifies the business application processing time monitoring unit 18 of the end of the processing (processing 903).

The output processing result is stored in the message management unit 15.
Through the process result transmission queue 106 (process 722).
The business application processing time monitoring unit 18 receives a processing start notification from the business application processing unit 17 (processing 90
2), the time at that time is acquired as the processing start time, and the processing time is calculated from the difference between the end times when the processing end notification (processing 903) is received (processing 110).
2). The calculated processing time is stored in the processing time database in FIG.
According to the processing time database table format shown in FIG. 2A, the access request, the database identification, and the access condition are updated as the predicted processing time using the key as a key. afterwards,
The business application processing time monitoring unit 18 deletes the record corresponding to the reservation ID of the completed processing request from the waiting time database through the business application waiting time management unit 19 (processing 1003).

When the client computer 101 receives the processing time notification (processing 803) from the server computer 104, the prediction completion time monitoring unit 11 calculates the prediction completion time by adding the current time to the processing time corresponding to the last processing request ID. (Step 302). Thereafter, the prediction completion time monitoring unit 11 waits until the prediction completion time elapses. Here, for example, by operating the prediction completion time monitoring unit 11 as a resident process,
The client computer can be stopped regardless of the state of the server computer. Further, it becomes possible to continue monitoring when the client computer is restarted.

When the prediction completion time monitoring unit 11 detects that the current time has passed the prediction completion time, the response reception unit 12 starts the process of receiving the response result. As described above, when a connection trigger comes, the user automatically connects to the server system, thereby making it unnecessary for the user to predict the connection trigger and obtain a processing result.

The response receiving unit 12 creates a transmission request message shown in FIG. 13C from the reservation ID received in the processing time notification message, and requests the message management unit 14 to receive the processing result (Step 732). . The message management unit 14 connects to the server computer 104 and transmits a transmission request message to the message management unit 15.

Upon receiving the transmission request message, the message management unit 15 refers to the processing result transmission queue and checks whether a processing result message corresponding to each reservation ID has been created. When a processing result message has been created, a corresponding processing result message is transmitted to the client computer 101. When the processing result message has not been created, the remaining processing time is calculated by referring to the waiting time database 109, accumulating the predicted processing times of the records up to the reservation ID (processing 732) of the reception request in the order of the execution order, Recreate the processing time notification message. After repeating this processing for all reservation IDs of the reception request, a processing time notification message is created, and then a notification is sent to the client computer.

When the message management unit 14 receives the processing result, it stores it in the processing result reception queue 103. When the processing time notification message is received again, the prediction completion time monitoring unit 11 monitors the arrival of the prediction completion time.

The client computer 101 disconnects the line with the server system 104 when the reception of the processing result or the processing time notification message is completed. When receiving the display instruction, the result display unit 13 obtains a response result message from the processing result reception queue 103 and displays the obtained message.

As described above, according to the present embodiment,
The client computer only needs to connect to the server computer when transmitting a processing request and receiving a processing result. Therefore, unnecessary line connection for monitoring the processing state of the server system can be reduced, and communication costs can be reduced.

[0033]

As described above, according to the present invention, it is possible to provide a low-cost communication device in which the use of a line for monitoring the state of a server computer is suppressed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a communication device according to an embodiment of the present invention.

FIG. 2 is a diagram showing processing of a processing request unit of a client computer.

FIG. 3 is a diagram showing a process of a prediction completion time monitoring unit of the client computer.

FIG. 4 is a diagram showing processing of a response receiving unit of the client computer.

FIG. 5 is a diagram showing processing of a result display unit of the client computer.

FIG. 6 is a diagram showing processing of a message management unit of the client computer.

FIG. 7 is a diagram showing processing of a message management unit of the server computer.

FIG. 8 is a diagram showing processing of a message management unit of the server computer.

FIG. 9 is a diagram showing processing of a business application of the server computer.

FIG. 10 is a diagram showing a process of a business application waiting time management unit of the server computer.

FIG. 11 is a diagram showing a process of a business application processing time monitoring unit of the server computer.

FIG. 12 is a diagram showing a format of a database.

FIG. 13 is a diagram showing a message format.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Processing request part 11 Prediction completion time monitoring part 12 Response receiving part 13 Result display part 14 Message management part 15 Message management part 16 Business request management part 17 Business application processing part 18 Business application processing time monitoring part 19 Business application waiting time management part Reference Signs List 101 client computer 102 message transmission queue 103 processing result reception queue 104 server computer 105 message reception queue 106 processing result transmission queue 107 business database 108 processing time database 109 waiting time database

Claims (5)

[Claims] A processing request unit for requesting the server to perform an arithmetic process; and a time at which the server completes the arithmetic process by receiving a total processing time required until completion of the arithmetic process predicted by the server; A client computer including a prediction completion time monitoring unit that activates a response receiving unit at the predicted time and receives a calculation processing result from a server; a business application processing unit that performs the calculation processing requested by the processing request unit; A business request for calculating the total processing time based on the processing time required for the arithmetic processing and the processing time required for a processing request in a processing waiting state predicted from the processing time results, and notifying the client computer of the calculated total processing time. A communication device comprising: the server having a management unit. 2. A process requesting unit for requesting a server to perform an arithmetic process, and receiving from the server a total predicted process time required for completing the requested arithmetic process predicted from the server's own past process time results. A communication device comprising a client computer having an operation completion time management unit for estimating a time at which the operation processing of the server ends and activating a response receiving unit at the estimated time to receive an operation processing result from the server 3. A business application processing unit for executing an arithmetic processing requested by a client, and a processing time required for the arithmetic processing predicted from past processing time results and a processing time required for a processing request in a processing waiting state. A communication device comprising a server having a task request management unit for calculating the total processing time and notifying the client computer of the calculation processing time in response to a request from the client computer. 4. The processing time according to claim 1, wherein the server calculates a processing time required for the arithmetic processing and a processing time required for a processing request in a processing waiting state, based on past processing time results. A communication completion device that predicts a processing completion time based on the information and notifies the client computer of the predicted processing completion time. 5. The communication apparatus according to claim 4, wherein the server includes a waiting time database storing processing times required for processing requests in a processing waiting state.