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zoie core library
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package proj.zoie.hourglass.impl;

import java.io.IOException;
import java.util.LinkedList;
import java.util.List;

import org.apache.log4j.Logger;
import org.apache.lucene.index.IndexReader;

import proj.zoie.api.ZoieException;
import proj.zoie.api.ZoieIndexReader;
import proj.zoie.api.indexing.IndexReaderDecorator;
import proj.zoie.impl.indexing.ZoieSystem;

public class Box
{
  public static final Logger log = Logger.getLogger(Box.class.getName());
  List> _archives;
  List> _archiveZoies;
  List> _retiree;
  List> _actives;
  IndexReaderDecorator _decorator;

  /**
   * Copy the given lists to have immutable behavior.
   * 
   * @param archives
   * @param retiree
   * @param actives
   * @param decorator
   */
  public Box(List> archives, List> archiveZoies, List> retiree, List> actives, IndexReaderDecorator decorator)
  {
    _archives = new LinkedList>(archives);
    _archiveZoies = new LinkedList>(archiveZoies);
    _retiree = new LinkedList>(retiree);
    _actives = new LinkedList>(actives);
    _decorator = decorator;
    if (log.isDebugEnabled())
    {
      for (ZoieIndexReader r : _archives)
      {
        log.debug("archive " + r.directory() + " refCount: " + r.getRefCount());
      }
    }
  }

  public void shutdown()
  {
    for (ZoieIndexReader r : _archives)
    {
      r.decZoieRef();
      log.info("refCount at shutdown: " + r.getRefCount() + " " + r.directory());
    }
    for (ZoieSystem zoie : _archiveZoies)
    {
      zoie.shutdown();
    }
    for (ZoieSystem zoie : _retiree)
    {
      zoie.shutdown();
    }
    // add the active index readers
    for (ZoieSystem zoie : _actives)
    {
      while (true)
      {
        long flushwait = 200000L;
        try
        {
          zoie.flushEvents(flushwait);
          zoie.getAdminMBean().setUseCompoundFile(true);
          zoie.getAdminMBean().optimize(1);
          break;
        } catch (IOException e)
        {
          log.error("pre-shutdown optimization " + zoie.getAdminMBean().getIndexDir() + " Should investigate. But move on now.", e);
          break;
        } catch (ZoieException e)
        {
          if (e.getMessage().indexOf("timed out") < 0)
          {
            break;
          } else
          {
            log.info("pre-shutdown optimization " + zoie.getAdminMBean().getIndexDir() + " flushing processing " + flushwait + "ms elapsed");
          }
        }
      }
      zoie.shutdown();
    }
  }
}