Examples of org.apache.solr.search.DocIterator

org.apache.solr.search.DocIterator
Simple Iterator of document Ids which may include score information.
The order of the documents is determined by the context in which the DocIterator instance was retrieved.
@version $Id: DocIterator.java 555343 2007-07-11 17:46:25Z hossman $

    
    public NamedList<DocList> getMoreLikeThese( DocList docs, int rows, int flags ) throws IOException
    {
      IndexSchema schema = searcher.getSchema();
      NamedList<DocList> mlt = new SimpleOrderedMap<DocList>();
      DocIterator iterator = docs.iterator();
      while( iterator.hasNext() ) {
        int id = iterator.nextDoc();
        
        DocListAndSet sim = getMoreLikeThis( id, 0, rows, null, null, flags );
        String name = schema.printableUniqueKey( reader.document( id ) );


        mlt.add(name, sim.docList);

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    }
    writeKey("docs",false);
    writeArrayOpener(sz);


    SolrIndexSearcher searcher = req.getSearcher();
    DocIterator iterator = ids.iterator();
    for (int i=0; i<sz; i++) {
      int id = iterator.nextDoc();
      Document doc = searcher.doc(id, fields);
      writeKey(i, false);
      writeDoc(null, doc, fields, (includeScore ? iterator.score() : 0.0f), includeScore);
    }
    writeMapCloser();


    if (otherFields !=null) {
      writeMap(null, otherFields, true, false);

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      int sz = ids.size();
      codec.writeTag(JavaBinCodec.ARR, sz);
      if(searcher == null) searcher = solrQueryRequest.getSearcher();
      if(schema == null) schema = solrQueryRequest.getSchema(); 
      DocIterator iterator = ids.iterator();
      for (int i = 0; i < sz; i++) {
        int id = iterator.nextDoc();
        Document doc = searcher.doc(id, returnFields);


        SolrDocument sdoc = getDoc(doc);


        if (includeScore && ids.hasScores()) {
          sdoc.addField("score", iterator.score());
        }


        codec.writeSolrDocument(sdoc);
      }
    }

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         fset.add(keyField.getName());  
     }




    // Highlight each document
    DocIterator iterator = docs.iterator();
    for (int i = 0; i < docs.size(); i++) {
       int docId = iterator.nextDoc();
       Document doc = searcher.doc(docId, fset);
       NamedList docSummaries = new SimpleOrderedMap();
       for (String fieldName : fieldNames) {
          fieldName = fieldName.trim();
          String[] docTexts = doc.getValues(fieldName);

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          fset.add(keyField.getName());  
        searcher.readDocs(readDocs, docs, fset);
      }


      // Highlight each document
      DocIterator iterator = docs.iterator();
      for (int i = 0; i < docs.size(); i++)
      {
         int docId = iterator.nextDoc();
         Document doc = readDocs[i];
         NamedList docSummaries = new NamedList();
         for (String fieldName : fieldNames)
         {
            fieldName = fieldName.trim();

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    writer.write('[');


    incLevel();
    boolean first=true;


    DocIterator iterator = ids.iterator();
    for (int i=0; i<sz; i++) {
      int id = iterator.nextDoc();
      Document doc = searcher.doc(id, fields);


      if (first) {
        first=false;
      } else {
        writer.write(',');
      }
      indent();
      writeDoc(null, doc, fields, (includeScore ? iterator.score() : 0.0f), includeScore);
    }
    decLevel();
    writer.write(']');


    if (otherFields !=null) {

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    } else {
      writer.write('>');
    }


    incLevel();
    DocIterator iterator = ids.iterator();
    for (int i=0; i<sz; i++) {
      int id = iterator.nextDoc();
      Document doc = searcher.doc(id, fields);
      writeDoc(null, doc, fields, (includeScore ? iterator.score() : 0.0f), includeScore);
    }
    decLevel();


    if (doIndent) indent();
    writer.write("</result>");

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      codec.writeArray(l);


      int sz = ids.size();
      codec.writeTag(NamedListCodec.ARR, sz);


      DocIterator iterator = ids.iterator();
      for (int i = 0; i < sz; i++) {
        int id = iterator.nextDoc();
        Document doc = searcher.doc(id, returnFields);


        SolrDocument sdoc = getDoc(doc);


        if (includeScore && ids.hasScores()) {
          sdoc.addField("score", iterator.score());
        }


        codec.writeSolrDocument(sdoc);
      }
    }

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    }
    writeKey("docs",false);
    writeArrayOpener(sz);


    SolrIndexSearcher searcher = req.getSearcher();
    DocIterator iterator = ids.iterator();
    for (int i=0; i<sz; i++) {
      int id = iterator.nextDoc();
      Document doc = searcher.doc(id, fields);
      writeKey(i, false);
      writeDoc(null, doc, fields, (includeScore ? iterator.score() : 0.0f), includeScore);
    }
    writeMapCloser();


    if (otherFields !=null) {
      writeMap(null, otherFields, true, false);

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        return ids.offset();
      }


      public void writeDocs(boolean includeScore, Set<String> fields) throws IOException {
        SolrIndexSearcher searcher = request.getSearcher();
        DocIterator iterator = ids.iterator();
        int sz = ids.size();
        includeScore = includeScore && ids.hasScores();
        for (int i=0; i<sz; i++) {
          int id = iterator.nextDoc();
          Document doc = searcher.doc(id, fields);
          writeDoc(null, doc, fields, (includeScore ? iterator.score() : 0.0f), includeScore);
        }
      }
    }, fields );
  }

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