PriorityURLBuffer (storm-crawler-core 2.8 API)

java.lang.Object
- com.digitalpebble.stormcrawler.persistence.urlbuffer.AbstractURLBuffer
- - com.digitalpebble.stormcrawler.persistence.urlbuffer.SimpleURLBuffer
  - - com.digitalpebble.stormcrawler.persistence.urlbuffer.PriorityURLBuffer

All Implemented Interfaces:

URLBuffer
```
public class PriorityURLBuffer
extends SimpleURLBuffer
```
Determines the priority of the buffers based on the number of URLs acked in a configurable period of time.

Since:

1.16

Nested Class Summary
- Nested classes/interfaces inherited from class com.digitalpebble.stormcrawler.persistence.urlbuffer.AbstractURLBuffer
  AbstractURLBuffer.URLMetadata

Field Summary
- Fields inherited from class com.digitalpebble.stormcrawler.persistence.urlbuffer.AbstractURLBuffer
  in_buffer, listener, partitioner, queues
- Fields inherited from interface com.digitalpebble.stormcrawler.persistence.urlbuffer.URLBuffer
  bufferClassParamName

Constructor Summary

Constructors
Constructor Description

PriorityURLBuffer()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`acked(String url)`	Notify the buffer that a URL has been successfully processed used e.g to compute an ideal delay for a host queue
`org.apache.storm.tuple.Values`	`next()`	Retrieves the next available URL, guarantees that the URLs are always perfectly shuffled

Methods inherited from class com.digitalpebble.stormcrawler.persistence.urlbuffer.AbstractURLBuffer
add, add, configure, hasNext, numQueues, setEmptyQueueListener, size

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - PriorityURLBuffer
```
public PriorityURLBuffer()
```
- Method Detail
  - next
```
public org.apache.storm.tuple.Values next()
```
    Description copied from class: SimpleURLBuffer
    
    Retrieves the next available URL, guarantees that the URLs are always perfectly shuffled
    
    Specified by:
    
    next in interface URLBuffer
    
    Overrides:
    
    next in class SimpleURLBuffer
    
    Returns:
    
    null if no entries are available
  - acked
```
public void acked(String url)
```
    Description copied from interface: URLBuffer
    
    Notify the buffer that a URL has been successfully processed used e.g to compute an ideal delay for a host queue