ProfilerCollectorManager

java.lang.Object

org.apache.lucene.sandbox.search.ProfilerCollectorManager

All Implemented Interfaces:: CollectorManager<ProfilerCollector,ProfilerCollectorResult>

public abstract class ProfilerCollectorManager extends Object implements CollectorManager<ProfilerCollector,ProfilerCollectorResult>

Collector manager for ProfilerCollector

Field Summary

Fields

Modifier and Type

Field

Description

private final String

reason
Constructor Summary

Constructors

Constructor

Description

ProfilerCollectorManager(String reason)

Creates a profiler collector manager provided a certain reason
Method Summary

Modifier and Type

Method

Description

protected abstract Collector

createCollector()

Creates the collector to be wrapped with a ProfilerCollector

final ProfilerCollector

newCollector()

Return a new Collector.

ProfilerCollectorResult

reduce(Collection<ProfilerCollector> collectors)

Reduce the results of individual collectors into a meaningful result.

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

Field Details
- reason
  
  private final String reason
Constructor Details
- ProfilerCollectorManager
  
  public ProfilerCollectorManager(String reason)
  
  Creates a profiler collector manager provided a certain reason
  
  Parameters:
  
  reason - the reason for the collection
Method Details
- createCollector
  
  protected abstract Collector createCollector() throws IOException
  
  Creates the collector to be wrapped with a ProfilerCollector
  
  Throws:
  
  IOException
- newCollector
  
  public final ProfilerCollector newCollector() throws IOException
  
  Description copied from interface: CollectorManager
  
  Return a new Collector. This must return a different instance on each call.
  
  Specified by:
  
  newCollector in interface CollectorManager<ProfilerCollector,ProfilerCollectorResult>
  
  Throws:
  
  IOException
- reduce
  
  public ProfilerCollectorResult reduce(Collection<ProfilerCollector> collectors) throws IOException
  
  Description copied from interface: CollectorManager
  
  Reduce the results of individual collectors into a meaningful result. For instance a TopDocsCollector would compute the top docs of each collector and then merge them using TopDocs.merge(int, TopDocs[]). This method must be called after collection is finished on all provided collectors.
  
  Specified by:
  
  reduce in interface CollectorManager<ProfilerCollector,ProfilerCollectorResult>
  
  Throws:
  
  IOException