SplitLogManagerCoordination (Apache HBase 2.2.3 API)

All Known Implementing Classes:

ZKSplitLogManagerCoordination
```
@InterfaceAudience.Private
public interface SplitLogManagerCoordination
```
Coordination for SplitLogManager. It creates and works with tasks for split log operations
Manager prepares task by calling prepareTask(java.lang.String) and submit it by submitTask(String). After that it periodically check the number of remaining tasks by remainingTasksInCoordination() and waits until it become zero.
Methods required for task life circle:
checkTaskStillAvailable(String) Check that task is still there
checkTasks() check for unassigned tasks and resubmit them

Nested Class Summary

Nested Classes
Modifier and Type	Interface and Description
`static class`	`SplitLogManagerCoordination.SplitLogManagerDetails` Detail class that shares data between coordination and split log manager

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`checkTasks()` tells Coordination that it should check for new tasks
`void`	`checkTaskStillAvailable(String task)` Check that the task is still there
`void`	`deleteTask(String taskName)`
`SplitLogManagerCoordination.SplitLogManagerDetails`	`getDetails()` Returns the configuration that was provided previously
`void`	`init()` Support method to init constants such as timeout.
`String`	`prepareTask(String taskName)` Prepare the new task
`int`	`remainingTasksInCoordination()` Return the number of remaining tasks
`boolean`	`resubmitTask(String taskName, SplitLogManager.Task task, SplitLogManager.ResubmitDirective force)` Resubmit the task in case if found unassigned or failed
`void`	`setDetails(SplitLogManagerCoordination.SplitLogManagerDetails details)` Provide the configuration from the SplitLogManager
`void`	`submitTask(String taskName)`

- Method Detail
  - setDetails
```
void setDetails(SplitLogManagerCoordination.SplitLogManagerDetails details)
```
    Provide the configuration from the SplitLogManager
  - getDetails
```
SplitLogManagerCoordination.SplitLogManagerDetails getDetails()
```
    Returns the configuration that was provided previously
  - prepareTask
```
String prepareTask(String taskName)
```
    Prepare the new task
    
    Parameters:
    
    taskName - name of the task
    
    Returns:
    
    the task id
  - checkTasks
```
void checkTasks()
```
    tells Coordination that it should check for new tasks
  - remainingTasksInCoordination
```
int remainingTasksInCoordination()
```
    Return the number of remaining tasks
  - checkTaskStillAvailable
```
void checkTaskStillAvailable(String task)
```
    Check that the task is still there
    
    Parameters:
    
    task - node to check
  - resubmitTask
```
boolean resubmitTask(String taskName,
                     SplitLogManager.Task task,
                     SplitLogManager.ResubmitDirective force)
```
    Resubmit the task in case if found unassigned or failed
    
    Parameters:
    
    taskName - path related to task
    
    task - to resubmit
    
    force - whether it should be forced
    
    Returns:
    
    whether it was successful
  - submitTask
```
void submitTask(String taskName)
```
    Parameters:
    
    taskName - to be submitted
  - deleteTask
```
void deleteTask(String taskName)
```
    Parameters:
    
    taskName - to be removed
  - init
```
void init()
   throws IOException
```
    Support method to init constants such as timeout. Mostly required for UTs.
    
    Throws:
    
    IOException

Interface SplitLogManagerCoordination

Nested Class Summary

Method Summary

Method Detail

setDetails

getDetails

prepareTask

checkTasks

remainingTasksInCoordination

checkTaskStillAvailable

resubmitTask

submitTask

deleteTask

init