source: trunk/gsdl3/src/java/org/greenstone/gsdl3/gs3build/indexers/IndexerManager.java@ 6349

package org.greenstone.gsdl3.gs3build.indexers;

import java.util.Iterator;

import org.greenstone.gsdl3.gs3build.doctypes.DocumentID;
import org.greenstone.gsdl3.gs3build.doctypes.DocumentInterface;
import org.greenstone.gsdl3.gs3build.doctypes.DocumentList;

public class IndexerManager
{
  IndexerInterface indexers[];
  int size;
  int used;
  DocumentList documents;

  public static final String outputDir = "outputDir";
  public static final String DEFAULT_LEVEL = "document";
  public static final String DEFAULT_FIELD = "text";

  public IndexerManager(DocumentList documentList)
  { this.indexers  = new IndexerInterface[10];
    this.size      = 10;
    this.used      = 0;
    this.documents = documentList;
  }

  public void addIndexer(IndexerInterface indexer)
  { this.ensureCapacity(this.used + 1);

    this.indexers[this.used] = indexer;
    this.used ++;
  }

  public void indexDocument(DocumentID docId, DocumentInterface document)
  { if (!document.isIndexed())
      return;
      
    for (int i = 0; i < this.used; i ++)
    { this.indexers[i].indexDocument(docId, document);
    }
  }

  public void indexDocuments()
  { for (int i = 0; i < this.used; i ++)
    { for (int p = 0; p < this.indexers[i].getNumberOfPasses(); p ++)
      { 
    this.indexers[i].startPass(p);
    Iterator iterator = this.documents.iterator();

    while (iterator.hasNext()) {
      DocumentInterface document = (DocumentInterface) iterator.next();

      if (document.isIndexed()) {
        if (!this.indexers[i].indexDocument(document.getID(), document)) {
          System.out.println("Ending document");
        }
        
        // note any changes made to this document...
        if (document.isModified()) {
          this.documents.modifiedDocument(document);
        }
      }
    }
    this.indexers[i].endPass(p);
      }
    }
  }

  public void ensureCapacity(int needSize)
  { while (needSize >= this.size)
    { int newSize = this.size * 2;
      IndexerInterface newIndexers [] = new IndexerInterface[newSize];
      System.arraycopy(indexers, 0, newIndexers, 0, this.used);
      this.indexers = newIndexers;
      this.size = newSize;
    }
  }
}