StatisticDataQueueService (eXo Analytics - API 1.2.3-RC01 API)

```
public interface StatisticDataQueueService
```
A service to manage statistic data ingestion processing

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`StatisticData`	`get(long id)`	Retrieve `StatisticData` from queue by its id
`long`	`getAverageExecutionTime()`
`long`	`getExecutionCount()`
`long`	`getLastExecutionTime()`
`void`	`processQueue()`	Retrieve queue elements and process them
`void`	`put(StatisticData data)`	Add `StatisticData` in statistics data ingestion queue
`int`	`queueSize()`

- Method Detail
  - put
```
void put(StatisticData data)
```
    Add StatisticData in statistics data ingestion queue
    
    Parameters:
    
    data -
  - get
```
StatisticData get(long id)
```
    Retrieve StatisticData from queue by its id
    
    Parameters:
    
    id - unique identifier to retrieve StatisticData from queue
    
    Returns:
    
    StatisticData
  - queueSize
```
int queueSize()
```
    Returns:
    
    statistic data ingestion queue size
  - processQueue
```
void processQueue()
```
    Retrieve queue elements and process them
  - getAverageExecutionTime
```
long getAverageExecutionTime()
```
    Returns:
    
    average queue processing execution time
  - getExecutionCount
```
long getExecutionCount()
```
    Returns:
    
    queue processing operation exectuion count
  - getLastExecutionTime
```
long getLastExecutionTime()
```
    Returns:
    
    latest operation queue processing execution time