JP2004046717A - Logging device, logging method, and logging program - Google Patents

Abstract

Provided is a logging device capable of easily setting output conditions of log data from an application.
A logging device includes an output determination unit and an output execution unit, and upon receiving a log request from an application, outputs a log data to a display device or an external storage device. The output determination unit 11 refers to output setting information corresponding to the type of log data and common output setting information that does not depend on the type of log data, and outputs log data according to the type of log data of the log request. The necessity and output destination are determined. Then, the output execution unit 12 outputs the log data from the application to the display device 30 or the external storage device 40 based on the instruction from the output determination unit 11.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a logging device that outputs log data during execution of an application program, a logging method, and a logging program.
[0002]
[Prior art]
During development or operation of an application, it may be necessary to check the internal operation status. As a method of checking the internal operation status, there are a method of performing tracing by a debugger and a method of outputting log data indicating the processing status of a program. Of these, the output of log data is effective when the execution of the program cannot be stopped by the debugger or when irregular phenomena are analyzed, such as during operation.
[0003]
As another means for solving such a problem, there is a logging device described in JP-A-2001-318809. When the application outputs log data, the logging device assigns, to the log data, one or more of a segment, a data length, a date and time, a process name, and a program name as key attributes. It controls output of log data from the application according to the key attributes and the contents of the management table. In the management table, information indicating the necessity of outputting log data and information about an output destination file are stored in correspondence with the key attribute, and can be appropriately set, so that only necessary log data is designated. Can be output to a file.
[0004]
However, the logging device described in the above publication needs to set information corresponding to an attribute key added to log data from an application in an information management table prior to a logging process. Not always easy. In other words, it is easy to check the attribute key added to the log data from the application when operating the application, and to set the necessity information of the log data output and the output destination information at the time of output for each of them. Not.
[0005]
In addition, the necessity of outputting log data and the output destination are set in detail corresponding to the attribute key in a special case such as when an error occurs.In normal operation, the minimum log data is set. It is sufficient to output them all together in one file or a small number of files. Even in such an operation, it is troublesome to create a management table corresponding to each attribute key.
[0006]
Further, depending on the application to be operated, an attribute key is not added to the log data, and another logging device is required to acquire the log data of such an application.
[0007]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and has as its object to provide a logging device, a logging method, and a logging program that can easily set conditions for outputting log data from an application. It is another object of the present invention to provide a logging device, a logging method, and a logging program that enable logging according to a log data processing function of an application.
[0008]
[Means for Solving the Problems]
The logging device of the present invention outputs log data based on a log request from an application, and stores output setting information corresponding to the type of log data and common output setting information independent of the type of log data. Output setting information storage unit, and an output control unit that controls the output of log data from the application, the output control unit, according to the type in the log request, the output setting information storage unit And outputs log data based on the log request. Therefore, it is possible to easily set the log data output conditions from the application.
[0009]
The output setting information in the logging device of the present invention includes output necessity information indicating necessity of outputting the log data and output destination information indicating an output destination of the log data. In this way, different output destinations can be set according to the type of log.
[0010]
The output destination information in the logging device of the present invention includes designation of a file name in which the log data is stored and designation of a display unit. In this way, different output destinations can be set in more detail according to the type of log.
[0011]
The output setting unit in the logging device of the present invention outputs the log data using the common output setting information when the type cannot be specified from the log request. In this case, it is also possible to output a log of an application that cannot output log type information.
[0012]
The output control unit in the logging device of the present invention, when the output setting information corresponding to the type in the log request can not be acquired from the output setting information storage unit, the log using the common output setting information Outputs data. In this case, the operation can be performed by setting only the log output setting information that is necessary.
[0013]
The logging device of the present invention further includes a logging necessity setting information storage unit that stores logging necessity setting information indicating necessity of the log data output processing itself, and the output control unit performs the logging necessity setting. When there is no information, the output of the log data based on the log request is all stopped.
[0014]
The logging method of the present invention outputs log data of an application, and includes a log request receiving step of receiving a log request from an application, and a log to be output in the log request received in the log request receiving step. A type grasping step for grasping a type of data, an output setting information acquiring step for acquiring output setting information corresponding to the grasped type, and the log A log data output step of controlling output of log data based on the request, wherein the output setting information obtaining step depends on the type of log data when output setting information corresponding to the type of log data cannot be obtained. The common output setting information that is not used is output setting information corresponding to the log request. is there.
[0015]
The output setting information in the logging method of the present invention includes output necessity information indicating whether log data is required to be output and output destination information indicating an output destination of the log data.
[0016]
The output destination information in the logging method of the present invention includes designation of a file name in which the log data is stored and designation of a display unit.
[0017]
A program according to the present invention realizes the above-described logging device by a computer.
A program according to the present invention is for causing a computer to execute each step in the above-described logging method.
[0019]
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 diagram illustrating a schematic configuration of a logging device according to an embodiment of the present invention. 1 includes an output determination unit 11 and an output execution unit 12, and receives a log request 201 from an application 20 and outputs log data 102 to a display device 30 or an external storage device 40. is there.
[0020]
The application 20 outputs log data indicating an operation state at a checkpoint or the like, and transmits a log request 201 to which type information of log data is added to the logging device 10. Error information, debug information, and the like can be used as the type information, but any type can be set.
[0021]
The output determination unit 11 of the logging device 10 receives the log request 201 and determines whether log data output is necessary. That is, based on the state of the logging necessity flag 13, the content of the type information of the log data included in the log request 201 and the setting state of the output setting information 14, the necessity information of the log data included in the log request 201, Acquire the output destination ID. Then, when the output is necessary, the received log data and the output destination ID are sent to the output execution unit 12. If output is unnecessary, discard the received log data.
[0022]
The output execution unit 12 refers to the output setting information 14 based on the output destination ID sent from the output control unit 11, acquires output destination detailed information, and sends the log data 101 to the acquired output destination. The output execution unit 12 forms an output control unit together with the output control unit 11.
[0023]
As the output destination of the log data, the display device 30 and the external storage device 40 can be set. When outputting to the external storage phase value 40, the log file 41 to be stored is specified.
[0024]
The logging necessity flag 13 is information indicating the necessity of the log data output processing itself. When this flag is on, the log data is not output even if there is a log request from the application. belongs to. The output setting information 14 indicates output necessity information indicating whether log data is output and output destination information indicating a log data output destination. The output setting information 14 includes output setting information corresponding to the type of log data, Includes common output setting information independent of type.
[0025]
2 and 3 show examples of the output setting information. FIG. 2 is an example of an output setting table 141 in which a type key indicating the type of log data is associated with an output necessity flag and an output destination ID, and FIG. 13 is an example of an output destination detailed table 142 that has been made.
[0026]
In the example of FIG. 2, a type key “0” corresponding to common output setting information that does not depend on the type of log data, and type keys “1” to “5” that can be arbitrarily set are registered. . The type key “0” itself is registered by default together with the output destination ID “A” (“A” indicates the display destination of the display device), and the output necessity flag and other output destination IDs are arbitrarily set. It is possible. For the type keys other than the type key “0”, the registration of the output necessity flag and the output destination ID is optional. For example, in the example of FIG. 2, the output destination ID is “unset” (blank indicates unset), like the type key “4”, and the type key “5” indicates the output necessity flag and the output necessity flag. The destination IDs are both “not set”. In the example of FIG. 2, the output necessity flag is set in association with the type key regardless of the number of output destinations. However, the output necessity flag is set for each type key and output destination. Is also possible.
[0027]
The output destination detailed table 142 stores information on a file when the external storage device 40 is set as the output destination (“Bn” indicates the external storage device), in association with the output destination ID. In the example of FIG. 3, as the information about the file, “file name” (not only the file name but also the path may be stored), “file format” (“0” is a write-once file, “ "1" indicates a ring buffer type file.), And the number of file digits and the number of file lines when outputting to the ring buffer type file are set.
[0028]
An example of the logging process when the output setting information 14 as shown in FIGS. 2 and 3 is set and the logging necessity flag 13 is set to “ON” will be described. For example, when an application requests a log data log with the type key “1”, the log determination unit 11 refers to the output setting table 141 and adds the output destination ID “B1” to the log data to execute the output. Send to section 12. The output execution unit 12 refers to the output destination table 142 and stores the log data in the file name “logfile1.txt” of the external storage device 40.
[0029]
As described above, the output setting information 14 is for setting whether or not to output log data based on a log request when the logging necessity flag 13 is on, and to which output destination to output the log data. However, as shown in FIG. 2, it is not necessary to completely register all items. If not set, determination is made using information registered corresponding to the type key “0” associated with common output setting information that does not depend on the type of log data.
[0030]
In the logging device 10 of FIG. 1, the setting of the logging necessity flag and the setting of the output setting information are performed by the setting information management unit 15 based on the setting instruction 202 from the application 20. The setting process can be performed at an arbitrary time and by an arbitrary method (operator setting, dynamic setting at the time of application execution, and the like). In addition, the setting items can be set individually, or the setting file 42 in which a plurality of setting items have been created is read in advance and can be set collectively.
[0031]
The computer for realizing the logging device by the predetermined program may be the same as or different from the computer that executes the application. Also, the display device and the external storage device that output the log data may be shared with the application device, or may be different devices.
[0032]
Next, the logging operation of the logging device of FIG. 1 will be described with reference to the schematic flowchart of FIG. When the logging request 201 is received from the application 20, first, it refers to the logging necessity flag 13 (step S401), and determines whether logging is necessary (step S402). If the logging necessity flag 13 is off, the log data included in the log request 201 is discarded, and the process ends.
[0033]
If the logging necessity flag 13 is off, the output setting information 14 is referred to (step S403), and it is determined whether or not the type key is included in the log request (step S404). If the type key is included, it is determined whether the type key is registered in the output setting table (step S405). If the type key is registered, the output necessity flag is referred to (step S406). If it is off, discard the log data and end. If the output necessity flag is not set, it is determined to be on.
[0034]
If the output necessity flag is on, it is determined whether an output destination corresponding to the type key has been set (whether an output destination ID has been registered) (step S407). Then, log data based on the log request 201 is output (S408). If the output destination corresponding to the type key has not been set, it is determined whether or not the output destination of the common output (the output destination of the type key “0”) has been set (step S409). The log data based on the log request 201 is output to the set output destination (S410). If the output destination of the type key “0” is not set, log data based on the log request 201 is output to the display device 30 (S411).
[0035]
If it is determined in step S404 that the type key is not included in the log request, and if the type key added to the log request is not registered in the output setting table in step S405, the process proceeds to step S409. The output control is performed based on the common output setting information. By performing such control, a common default output is performed even when the output setting information is not completely set, and the setting load of the output setting information can be reduced. In this example, default output is uniformly performed regardless of whether the output necessity flag of the type key “0” is on or off. However, the default is output only when the output necessity flag of the type key “0” is on. You may make it output. In this case, a step of determining the output necessity flag of the type key “0” is added before step S409.
[0036]
As is clear from the description of FIG. 1, in the flow of FIG. 4, steps S408, S410, and S411 are performed by the output execution unit 12, and other steps are performed by the output determination unit 11.
[0037]
Next, the setting operation of the logging device of FIG. 1 will be described with reference to the schematic flowchart of FIG. In step S501, the setting of the necessity of the log data output processing itself is determined, and if necessary, the logging necessity flag is set to on (step S502). If not, the logging necessity flag is set to off. (Step S503).
[0038]
In step S504, the setting for each type key is determined. If the setting is not for each type key (common output setting), it is determined whether the setting is for a common output destination (step S505). Then, in the case of setting a common output destination, output destination information (file name, file format, etc.) is set (step S506). In this example, the output necessity flag of the common output setting information is always treated as on, but if it can be set off, a step of determining whether to set the output necessity flag is added before step S505. .
[0039]
If it is determined in step S504 that the setting is for each type key, the type key and output necessity are set (step S507), and the output destination is determined in step S508. Output destination information is set (step S509).
[0040]
In step S507, first, a type key to be set (including change and deletion) is searched from the output setting table 141. If the type key has been registered in the output setting table 141, the necessity flag is set and the output destination is set. If the type key is not registered, it is newly added to the output setting table 141. In the case of a new addition, the uniform output necessity flag may be set to ON. In step S509, the output destination (file name or the like) to be set is searched from the output destination detailed table 142. When the output destination is already registered in the output destination detailed table 142, the output setting table 141 is set using the output destination ID. If the output destination is not registered, a new output destination ID is created and added to the output destination detail table 142, and the output setting table 141 is updated using the created output destination ID.
[0041]
If the output setting information set in this way is stored together in the external storage device 40 as the setting file 42 for each application status, the setting operation for performing the same setting is simplified.
[0042]
【The invention's effect】
As is apparent from the above description, according to the present invention, it is possible to easily set the log data output conditions from the application. Further, logging according to the log data processing function of the application can be performed.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a schematic configuration of a logging device according to an embodiment of the present invention; FIG. 2 is a diagram illustrating an example of an output setting table according to an embodiment of the present invention; FIG. 4 is a diagram illustrating an example of a destination detail table. FIG. 4 is a diagram illustrating a schematic flow of a logging operation of the logging device according to the embodiment of the present invention. FIG. 5 is a schematic flow of a setting operation of the logging device according to the embodiment of the present invention. Diagrams [Description of symbols]
Reference Signs List 10 logging device 11 output determination unit 12 output execution unit 13 logging necessity setting flag 14 output setting information 141 output setting table 142 output destination details Table 15 Setting information management unit 20 Application 30 Display device 40 External storage device 41 Log file 42 Setting file

Claims (11)

A logging device that outputs log data based on a log request from an application,
In advance, output setting information corresponding to the type of log data, and output setting information storage unit that stores common output setting information independent of the type of log data,
An output control unit that controls output of log data from the application,
The logging device, wherein the output control unit refers to the output setting information storage unit and outputs log data based on the log request according to the type in the log request. The logging device according to claim 1,
A logging device, wherein the output setting information includes output necessity information indicating necessity of outputting the log data and output destination information indicating an output destination of the log data. The logging device according to claim 2, wherein
The logging device, wherein the output destination information includes designation of a file name in which the log data is stored, and designation of a display unit. The logging device according to any one of claims 1 to 3, wherein the output setting unit uses the common output setting information to output the log data when the type cannot be specified from the log request. A logging device that is to output. 5. The logging device according to claim 1, wherein the output control unit is configured to acquire output setting information corresponding to the type in the log request from the output setting information storage unit. 6. A logging device for outputting the log data using the common output setting information. The logging device according to any one of claims 1 to 5, further comprising: a logging necessity setting information storage unit that stores logging necessity setting information indicating necessity of log data output processing itself,
A logging device, wherein the output control unit stops outputting log data based on the log request when the logging necessity setting information is negative. A logging method that outputs application log data,
A log request receiving step of receiving a log request from the application,
In the log request received in the log request receiving step, a type grasping step of grasping a type of log data to be output,
An output setting information acquisition step of acquiring output setting information corresponding to the grasped type,
A log data output step of controlling output of log data based on the log request, based on the output setting information obtained in the output setting information obtaining step,
The output setting information obtaining step includes, when output setting information corresponding to the type of the log data cannot be obtained, common output setting information independent of the type of the log data, and output setting information corresponding to the log request. The logging method that is what you do. The logging method according to claim 7, wherein:
The logging method, wherein the output setting information includes output necessity information indicating necessity of outputting the log data and output destination information indicating an output destination of the log data. The logging method according to claim 8, wherein
A logging method, wherein the output destination information includes designation of a file name in which the log data is stored and designation of a display unit. A logging program for realizing a logging device according to any one of claims 1 to 6 by a computer. 10. A logging program for causing a computer to execute each step in the logging method according to claim 7.

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