CN102508716A - Task control device and task control method - Google Patents
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- CN102508716A CN102508716A CN2011103001534A CN201110300153A CN102508716A CN 102508716 A CN102508716 A CN 102508716A CN 2011103001534 A CN2011103001534 A CN 2011103001534A CN 201110300153 A CN201110300153 A CN 201110300153A CN 102508716 A CN102508716 A CN 102508716A
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Abstract
The invention provides a task control device and a task control method. The task control device comprises a task classification module and a task execution module, wherein the task classification module is used for classifying tasks to be executed into independent tasks and tasks with a dependence relation; and the task execution module is used for executing the independent tasks and classifying the tasks with the dependence relation into one or more task queues according to the dependence relation between the tasks, and executing the tasks in each task queue according to the dependence relation between the tasks in each task queue. According to the invention, the tasks are classified and the execution way of the tasks is determined according to the classification result, so that the tasks can be smoothly executed and the execution efficiency is ensured.
Description
Technical field
The present invention relates to field of computer technology, in particular to a kind of task control device and a kind of task control method.
Background technology
All can use the device of carrying out and managing asynchronous task in general enterprise application and other various signal conditioning packages, asynchronous task is meant in the application system according to one section specific business processing program of specifying scheduling scheme to carry out.Management devices of the execution of these asynchronous task and managerial demand is managed and is provided with.
Task device in more existing application systems is generally all adopted the mode that serial is carried out, cannot the concurrent execution of many formations; Perhaps use the thread of given number; Form a thread pool, adopt I/O to accomplish mechanism such as port, multi-thread concurrent Processing tasks; Taking-up task from waiting task one by one in each thread, the mode of carrying out one by one.
And in practical application; Between a plurality of tasks to be carried out is to have certain relation; There is strict sequencing in some; The task executions in back depends on previous or a plurality of task executions results, therefore needs to carry out in sequence, cannot simply adopt multi-thread concurrent to carry out; Then there is not precedence relationship in some task to be carried out, as long as carried out just passablely, can adopt the mode of the concurrent execution of dividing into groups, the demand in this actual scene, and existing systems can't satisfy with device.
Therefore, need a kind of new device that is used for task management, can carry out grouping management, carry out the concurrent execution of task respectively and carry out the efficient that the lifting task is carried out with order task.
Summary of the invention
Problem to be solved by this invention is, a kind of new device that is used for task management is provided, and can carry out grouping management to task, carries out the concurrent execution of task respectively and carries out the efficient that the lifting task is carried out with order.
In view of this, the present invention provides a kind of task control device, comprising: the classification of task module is divided into independent task and the task with dependence with waiting to execute the task; Task execution module; Carry out said independent task; And according to each other dependence; Said task division with dependence in one or more task queues, and according to the dependence between the task in each task queue, is carried out the task in said each task queue in order.Through this technical scheme, task to be divided, and decide the task executions mode according to results, the task that both guaranteed can be carried out smoothly, has guaranteed the efficient of carrying out again.
In technique scheme, preferably, during the arbitrary task execution error of said task execution module in being in task queue, the parameter according to preset judges whether to continue to carry out other tasks in the same task queue.Through this technical scheme, can freely control in the task with dependence, task action result is to the influence of follow-up work.
In technique scheme, preferably, also comprise: hang up control module; When executing the task pending operation, for said independent task, when said independent task is when waiting for the state of carrying out; Allow to carry out pending operation, for task, according to said parameter with dependence; Whether judgement continues to carry out other tasks in the same formation said after having the task execution error of dependence, and in judged result when being, allow to carry out pending operation; For not the time, forbid carrying out pending operation in judged result.Through this technical scheme, guaranteed the smooth execution of task suspension operation.
In technique scheme, preferably, said task execution module also writes down the task executions result in said each task queue; Said task control device also comprises: repeat control module, repeat when operation executing the task, judge whether to exist and wait to repeat the task executions result; And only in judged result when being, for said independent task, carry out said independent task; For task with dependence; According to other tasks in the same formation whether still in commission, and in judged result when being, forbid repeating said task with dependence; For not the time, restart to carry out the task in the said same formation in judged result.Through this technical scheme, the task that guaranteed can repeat smoothly.
In technique scheme, preferably, said task execution module carries out in order said independent task according to preset priority and/or the serial number of giving said independent task.Through this technical scheme, when resource-constrained, can guarantee can not occur stopping up or other mistakes reasonably controlling the execution of independent task.
The present invention also provides a kind of task control method, comprising: step 202 is divided into independent task and the task with dependence with waiting to execute the task; Step 204 is carried out said independent task; Step 206 according to dependence each other, in one or more task queues, and according to the dependence between the task in each task queue, is carried out the task in said each task queue with said task division with dependence in order.Through this technical scheme, task to be divided, and decide the task executions mode according to results, the task that both guaranteed can be carried out smoothly, has guaranteed the efficient of carrying out again.
In technique scheme, preferably, said step 206 also comprises: during arbitrary task execution error in being in task queue, the parameter according to preset judges whether to continue to carry out other tasks in the same task queue.Through this technical scheme, can freely control in the task with dependence, task action result is to the influence of follow-up work.
In technique scheme, preferably, also comprise: when executing the task pending operation, for said independent task; When said independent task is when waiting for the state of carrying out, allow to carry out pending operation, for task with dependence; According to said parameter, judge said whether continue to carry out other tasks in the same formation after having the task execution error of dependence, and in judged result when being; Allow to carry out pending operation, for not the time, forbid carrying out pending operation in judged result.Through this technical scheme, guaranteed the smooth execution of task suspension operation.
In technique scheme, preferably, said step 206 also comprises: write down the task executions result in said each task queue; The task control method also comprises: repeat when operation executing the task, judge whether to exist and wait to repeat the task executions result, and only in judged result when being; For said independent task; Carry out said independent task, for task, whether still in commission according to other tasks in the same formation with dependence; And in judged result when being; Forbid repeating said task, for not the time, restart to carry out the task in the said same formation in judged result with dependence.Through this technical scheme, the task that guaranteed can repeat smoothly.
In technique scheme, preferably, said step 204 specifically comprises: according to preset priority and/or the serial number of giving said independent task, come to carry out in order said independent task.Through this technical scheme, when resource-constrained, can guarantee can not occur stopping up or other mistakes reasonably controlling the execution of independent task.
Through above technical scheme; Can realize a kind of task control device and a kind of task control method, through the relation between setting asynchronous task to be carried out, reach optimization, efficiently, correctly, task executive mode flexibly; And realized the management function of multiple asynchronous task; According to the priority dependence between task, improved the efficient that asynchronous task is carried out, satisfy the management and control demand that multiple-task is carried out demand and task is carried out.
Description of drawings
Fig. 1 is the block diagram of task control device according to an embodiment of the invention;
Fig. 2 is the process flow diagram of task control method according to an embodiment of the invention;
Fig. 3 is the workflow diagram of task control device according to an embodiment of the invention;
Fig. 4 is the workflow diagram of task control device according to an embodiment of the invention;
Fig. 5 is the workflow diagram of task control device according to an embodiment of the invention;
Fig. 6 is the workflow diagram of task control device according to an embodiment of the invention;
Fig. 7 is the task status conversion synoptic diagram of task control device according to an embodiment of the invention;
Fig. 8 is the interface sectional drawing of task control device according to an embodiment of the invention;
Fig. 9 is the interface sectional drawing of task control device according to an embodiment of the invention.
Embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with accompanying drawing and embodiment.
Set forth a lot of details in the following description so that make much of the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following disclosed specific embodiment.
Fig. 1 is the block diagram of task control device according to an embodiment of the invention.
As shown in Figure 1, the present invention provides a kind of task control device 100, comprising: classification of task module 102 is divided into independent task and the task with dependence with waiting to execute the task; Task execution module 104; Carry out said independent task; And according to each other dependence; Said task division with dependence in one or more task queues, and according to the dependence between the task in each task queue, is carried out the task in said each task queue in order.Through this technical scheme, task to be divided, and decide the task executions mode according to results, the task that both guaranteed can be carried out smoothly, has guaranteed the efficient of carrying out again.
In technique scheme, during the arbitrary task execution error of said task execution module 104 in being in task queue, the parameter according to preset judges whether to continue to carry out other tasks in the same task queue.Through this technical scheme, can freely control in the task with dependence, task action result is to the influence of follow-up work.
In technique scheme, also comprise: hang up control module 106, when executing the task pending operation; For said independent task,, allow to carry out pending operation when said independent task is when waiting for the state of carrying out; For task,, judge said whether continue to carry out other tasks in the same formation after having the task execution error of dependence according to said parameter with dependence; And in judged result when being; Allow to carry out pending operation, for not the time, forbid carrying out pending operation in judged result.Through this technical scheme, guaranteed the smooth execution of task suspension operation.
In technique scheme, said task execution module 104 also writes down the task executions result in said each task queue; Said task control device also comprises: repeat control module 108, repeat when operation executing the task, judge whether to exist and wait to repeat the task executions result; And only in judged result when being, for said independent task, carry out said independent task; For task with dependence; According to other tasks in the same formation whether still in commission, and in judged result when being, forbid repeating said task with dependence; For not the time, restart to carry out the task in the said same formation in judged result.Through this technical scheme, the task that guaranteed can repeat smoothly.
In technique scheme, said task execution module 104 carries out in order said independent task according to preset priority and/or the serial number of giving said independent task.Through this technical scheme, when resource-constrained, can guarantee can not occur stopping up or other mistakes reasonably controlling the execution of independent task.
Fig. 2 is the process flow diagram of task control method according to an embodiment of the invention.
As shown in Figure 2, the present invention also provides a kind of task control method, comprising: step 202 is divided into independent task and the task with dependence with waiting to execute the task; Step 204 is carried out said independent task; Step 206 according to dependence each other, in one or more task queues, and according to the dependence between the task in each task queue, is carried out the task in said each task queue with said task division with dependence in order.Through this technical scheme, task to be divided, and decide the task executions mode according to results, the task that both guaranteed can be carried out smoothly, has guaranteed the efficient of carrying out again.
In technique scheme, said step 206 also comprises: during arbitrary task execution error in being in task queue, the parameter according to preset judges whether to continue to carry out other tasks in the same task queue.Through this technical scheme, can freely control in the task with dependence, task action result is to the influence of follow-up work.
In technique scheme, also comprise: when executing the task pending operation, for said independent task; When said independent task is when waiting for the state of carrying out, allow to carry out pending operation, for task with dependence; According to said parameter, judge said whether continue to carry out other tasks in the same formation after having the task execution error of dependence, and in judged result when being; Allow to carry out pending operation, for not the time, forbid carrying out pending operation in judged result.Through this technical scheme, guaranteed the smooth execution of task suspension operation.
In technique scheme, said step 206 also comprises: write down the task executions result in said each task queue; The task control method also comprises: repeat when operation executing the task, judge whether to exist and wait to repeat the task executions result, and only in judged result when being; For said independent task; Carry out said independent task, for task, whether still in commission according to other tasks in the same formation with dependence; And in judged result when being; Forbid repeating said task, for not the time, restart to carry out the task in the said same formation in judged result with dependence.Through this technical scheme, the task that guaranteed can repeat smoothly.
In technique scheme, said step 204 specifically comprises: according to preset priority and/or the serial number of giving said independent task, come to carry out in order said independent task.Through this technical scheme, when resource-constrained, can guarantee can not occur stopping up or other mistakes reasonably controlling the execution of independent task.
Below the principle of the task control device in the embodiments of the invention is described.
1) rule of task call:
Be submitted to task object in the task control device of present embodiment and need realize the unified standard interface that calls, interface is described below:
As long as realize the object of this interface, all can be submitted in the task control device of present embodiment like this, task need be performed the time, the task control device of present embodiment is just passable as long as call the Do method according to this interface specification.
Task object adopts the binary sequence mode that the task object serializing is stored in the database.
When task is carried out, adopt the unserializing mode that task object is loaded in the internal memory again, according to the Do method of the interface of interface specification calling task object.
Below be the explanation of serializing/unserializing:
Serializing: convert the object in the calculator memory to text or binary data for data storage.
Unserializing: convert text on the storage medium or binary message in the calculator memory object.
2) the contextual storage of task object:
The information and the data of some system environmentss when context of task object is the task submission; For example submitter, submission time; Current Systems Operators etc. are imported environmental context into, and the binary sequence sequence of algorithmsization that adopts standard is in database; Task adopts scale-of-two unserializing algorithm to load object again when carrying out, rewrite context object.
3) task object is submitted to the interface (CreateTask method) of task control device:
This interface is called by task control device user of service:
Import into: task object,
Context object,
The task coding,
Task names,
Whether formation,
The task that this task relied on,
Classification of task,
Whether the formation execution error continues,
The formation mission failure attempts carrying out number of times,
The executed number of times,
Whether task can repeat,
This interface has stipulated that task is submitted to the standard of task control device.
4) for task object corresponding state is provided:
Task object comprises following several kinds of states: unsettled, wait for to carry out, carry out in, finish, hang up.
Unsettled: as to represent task record just to be submitted in the device and be persisted to database.
Wait for and carrying out: behind environmental test, task status becomes waits for execution.
In the execution: the expression task is being called manner of execution according to interface specification, but also is not finished.
End/completion: the expression task is finished.
Hang up: the expression task is not wanted to be performed, but carries out possibly later on, carries out and hangs up action.(can activate after the hang-up, activate the back state and carry out) for waiting for.
The rule of 5) formation task executions sequencing:
< 1 >: task is in being submitted to the task control device and be persisted in the task list of database, and the mode according to maximum serial number+1 deposits serial number in.Promptly the mode of employing+1 provides serial number.
According to whether formation of task; Whether there is dependence; Set up corresponding task and carry out formation, will have the task of dependence to be included into different formations, do not have the task of dependence to distribute the task that thread resources is carried out does not have dependence according to task priority, from thread pool.
< 2 >: state can not carried out in formation for the task of " completion " and " hang-up " in the task control device.
Having only state is that the task of " wait for carry out " just can be carried out in formation.
6) setting of the task (independent task) that the task of dependence and not having relies on and the rule that task queue is created are arranged:
The task (formation task) that dependence is arranged: a plurality of tasks that relation of interdependence is arranged, create an independent task queue, these tasks are put in this formation carried out, according to the dependence ordering, the priority of task that is not relied on is performed;
The task (independently non-formation task) that does not have dependence: expression is carried out with other task irrelevant; Priority according to these independent tasks; From available thread pool, distribute the independent concurrent execution of thread resources, the task that serial number is little and priority is high is performed earlier.
7) the task executions result carries out influence to formation:
Whether continue=True if task is set to the formation execution error, after current task was carried out failure in the expression formation, the follow-up work in the formation continued to carry out.
Whether the formation execution error continues=False, and after current task was carried out failure in the expression formation, this formation suspended the follow-up work of carrying out in the formation and do not continue to carry out.
Submit the parameter of importing in the interface to through task: whether the formation execution error continues to come the task implementation status of controlling queue.
8) task suspension and activation rule:
The hang-up of the non-formation task of independent task: just can hang up when task status is merely the wait execution, hang up the back task and can not carry out, task status is can activate after the hang-up, and the activation back is the wait execution.
The hang-up of the formation task of dependence is arranged: when whether the formation execution error continues=True, just can hang up the formation task, and task status is merely the wait execution.Formation task after the hang-up is no longer carried out; Can activate after the hang-up, activate the back and carry out for waiting for.If whether the formation execution error continues=False, cannot hang up the task in the formation.
Setting that 9) can repeat and executing rule:
Repeating of independent task: carried out (being that execution result has record) when task, and just can repeat, through repeating function, task is carried out once more.
The repeating of formation task that dependence is arranged: carried out (being that execution result has record) when task and just can repeat through repeating function; The formation of this task will be carried out once more, and formation will be executed the task according to Cahn-Ingold-Prelog sequence rule (minimum serial number is preferential).
10) the formation mission failure can be carried out the number of times rule:
The formation mission failure can attempt carrying out number of times: failed if show the execution of formation type task, can continue the number of times of attempting carrying out.
The executed number of times: after writing down present formation type task and carrying out failure, the number of times that has repeated.
If do not limit the execution number of times: the formation mission failure can be carried out number of times and be set to 0, and the executed number of times is set to-1.Each task executes, the still success of no matter failing, and the executed number of times increases by 1.
The condition that executing the task once more needs to satisfy is: the formation mission failure can be carried out number of times-executed number of times＞0, if no longer satisfy this condition, this task is no longer attempted carrying out again.
11) data structure of task object and task action result is described below:
Task and task action result are 1 many-many relationship:
The data structure of task object:
| The field title | Remarks |
| The task coding | Character string |
| Task names | Character string |
| Task status | Enumerate: unsettled, wait for to carry out, carry out in, finish, hang up |
| Whether formation | Boolean's (true: table is formation, false: table is not formation) |
| The task queue classification | Character string |
| Whether the formation execution error continues | Boolean (true: table can, false: table cannot) |
| Task object | Binary object |
| Task is carried out context | Binary object |
| The formation mission failure can attempt carrying out number of times | Integer (0 representes not limited number of times) |
| The executed number of times | Integer (1 representes not limited number of times) |
| Task can repeat | Boolean (true: table can, false: table cannot) |
| Serial number | Lint-long integer |
The data structure of task action result:
| The field title | Remarks |
| Task ID | The unique identification of task |
| Task is carried out the start time | Time on date |
| Task is carried out the concluding time | Time on date |
| Whether task is carried out successful | Boolean (true: the telogenesis merit, false: table is unsuccessful) |
| Task execute exception information | Character string |
12) the execution flow process of task control device is described below:
As shown in Figure 3, the task executions flow process has been described:
Step 302 is carried out the establishment of calling task through the task creation device;
Step 304 after a task is submitted to the task control device, can be checked its legitimacy;
Step 306 is through can setting the tasks and need in formation, carry out or independent carrying out of task according to the characteristics such as dependence of task after the inspection;
Step 308 is the then priority of independent carrying out of the task of basis of executing the task separately, and the available resources in the existing thread pool, these independent tasks of concurrent execution;
Step 312 will be sorted according to dependence by a group task of dependence and push a formation, and what do not relied on is performed earlier;
Step 314 is executed the task;
Step 316 after task is carried out end, judges whether to be the formation task, and the independent task of non-formation directly is changed to completion;
Step 320 if run succeeded, is then carried out the next task in the formation;
Step 322 if carry out failure, then determines whether continuing to attempt according to carrying out the configuration of whether heavily attempting row of failing;
Step 324 if allow wrong back retry, then attempt again carrying out, but the number of times of attempting is no more than preset number of times restriction, if do not allow, then directly finishes this formation.
As shown in Figure 4, the flow process of task suspension has been described:
Step 402 is being carried out pending operation to task, and the state of this task of inspection if current state is " wait for and carrying out ", then gets into step 406 earlier, if current state is not " wait for and carrying out ", then gets into step 404;
Step 404 finishes and prompting can not be carried out pending operation;
Step 406, the hang-up of the task of " wait for and carrying out " needs the further attribute of this task of judgement;
Step 408, if the independent task of not having dependence then directly is provided with this task status and is " hang-up ", this task can not be performed;
Step 410 if being hung up of task is the formation task that dependence is arranged, then needs further to judge whether this task queue is the formation that mistake can continue to carry out; If, then get into step 408, hang up this task; If not, get into step 404, point out this generic task to hang up.
As shown in Figure 5, the flow process of mission-enabling has been described:
Step 502 when task is carried out activation manipulation, is at first checked the state of this task;
As shown in Figure 6, the flow process that task is carried out has again been described:
Step 604 if there is execution result, carried out formation and is judged;
Step 606 is directly carried out just passable for the independent task of not having dependence again;
Step 610 if the quene state under this task then need restart the residing whole formation of this task for being finished, begins to carry out again from first task of formation.
As shown in Figure 7, the state exchange of having described task concerns:
Just submitting the task of task control device to is " opening " state 702, and through becoming " wait for and carrying out " 704 after the inspection, the task of " wait for and carrying out " 704 can become the task of state for " hang-up " 706 through pending operation; And the task of " hang-up " 706 can become the task of " wait for and carrying out " 704 once more through activation manipulation; " wait for and carrying out " that 704 task is changed to " in the execution " 708 when being begun to carry out, successful execution becomes " completion " 710 states after accomplishing; If carry out unsuccessful; Can optionally be changed to " wait for and carrying out " 704 once more according to user's configuration, so that attempt carrying out this task once more.The task control device provides the interface of monitor task implementation status, and is as shown in Figure 8, can view the state of task, and monitor task result's interface also is provided, as shown in Figure 9.
Serializing algorithm/unserializing is realized: employing be that binary sequenceization/unserializing technology of standard realizes.
Realize serial number+1: adding certainly of native system database realizes serial number+1.
In sum; Through above technical scheme, the relation of configuration task can define the self task of not having dependence and have the formation of dependence to execute the task flexibly; And the optimization that reaches the control of task executions process in the device and carry out efficient of the attribute through the definition task; Effectively satisfied various demand and scene in the real application systems, effectively utilized resource, the correctness, controllability, reliability and the task that have improved task are carried out the optimization of efficient.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a task control device is characterized in that, comprising:
The classification of task module is divided into independent task and the task with dependence with waiting to execute the task;
Task execution module; Carry out said independent task; And according to each other dependence; Said task division with dependence in one or more task queues, and according to the dependence between the task in each task queue, is carried out the task in said each task queue in order.
2. task control device according to claim 1 is characterized in that, during the arbitrary task execution error of said task execution module in being in task queue, the parameter according to preset judges whether to continue to carry out other tasks in the same task queue.
3. task control device according to claim 2 is characterized in that, also comprises:
Hang up control module, when executing the task pending operation, for said independent task; When said independent task is when waiting for the state of carrying out, allow to carry out pending operation, for task with dependence; According to said parameter, judge said whether continue to carry out other tasks in the same formation after having the task execution error of dependence, and in judged result when being; Allow to carry out pending operation, for not the time, forbid carrying out pending operation in judged result.
4. task control device according to claim 2 is characterized in that, said task execution module also writes down the task executions result in said each task queue;
Said task control device also comprises:
Repeat control module, repeat when operation executing the task, judge whether to exist and wait to repeat the task executions result; And only in judged result when being, for said independent task, carry out said independent task; For said task with dependence; According to other tasks in the same formation whether still in commission, and in judged result when being, forbid repeating said task with dependence; For not the time, restart to carry out the task in the said same formation in judged result.
5. according to each described task control device in the claim 1 to 4, it is characterized in that said task execution module carries out in order said independent task according to preset priority and/or the serial number of giving said independent task.
6. a task control method is characterized in that, comprising:
Step 202 is divided into independent task and the task with dependence with waiting to execute the task;
Step 204 is carried out said independent task;
Step 206 according to dependence each other, in one or more task queues, and according to the dependence between the task in each task queue, is carried out the task in said each task queue with said task division with dependence in order.
7. task control method according to claim 6 is characterized in that, said step 206 also comprises:
During arbitrary task execution error in being in task queue, the parameter according to preset judges whether to continue to carry out other tasks in the same task queue.
8. task control method according to claim 7 is characterized in that, also comprises:
When executing the task pending operation, for said independent task,, allow to carry out pending operation when said independent task is when waiting for the state of carrying out,
For task,, judge said whether continue to carry out other tasks in the same formation after having the task execution error of dependence according to said parameter with dependence; And in judged result when being; Allow to carry out pending operation, for not the time, forbid carrying out pending operation in judged result.
9. task control method according to claim 7 is characterized in that, said step 206 also comprises:
Write down the task executions result in said each task queue;
Said task control method also comprises:
Repeat when operation executing the task, judge whether to exist and wait to repeat the task executions result, and only in judged result when being,
For said independent task, carry out said independent task,
For said task with dependence; According to other tasks in the same formation whether still in commission, and in judged result when being, forbid repeating said task with dependence; For not the time, restart to carry out the task in the said same formation in judged result.
10. according to each described task control method in the claim 6 to 9, it is characterized in that said step 204 specifically comprises:
According to preset priority and/or the serial number of giving said independent task, come to carry out in order said independent task.
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