Java TermsFilter类代码示例

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
@Override
public Filter getFilter(Element e) throws ParserException {
  List<BytesRef> terms = new ArrayList<>();
  String text = DOMUtils.getNonBlankTextOrFail(e);
  String fieldName = DOMUtils.getAttributeWithInheritanceOrFail(e, "fieldName");

  TokenStream ts = null;
  try {
    ts = analyzer.tokenStream(fieldName, text);
    TermToBytesRefAttribute termAtt = ts.addAttribute(TermToBytesRefAttribute.class);
    BytesRef bytes = termAtt.getBytesRef();
    ts.reset();
    while (ts.incrementToken()) {
      termAtt.fillBytesRef();
      terms.add(BytesRef.deepCopyOf(bytes));
    }
    ts.end();
  }
  catch (IOException ioe) {
    throw new RuntimeException("Error constructing terms from index:" + ioe);
  } finally {
    IOUtils.closeWhileHandlingException(ts);
  }
  return new TermsFilter(fieldName, terms);
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
/**
 * Returns a filter that forces a given field to be one of the given values
 */
public static Filter terms(final String field, final Collection<?> values) {
    if (CollectionUtils.isEmpty(values)) {
        return null;
    }
    final TermsFilter filter = new TermsFilter();
    int count = 0;
    for (final Object object : values) {
        final String term = object == null ? null : StringUtils.trimToNull("" + object);
        if (term != null) {
            /* todo addterm*/
            //filter.addTerm(new Term(field, term));
            count++;
        }
    }
    return count == 0 ? null : filter;
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
/**
 * Returns a filter that forces a given field to be one of the given values
 */
public void addTerms(final String field, final Collection<?> values) {
    if (CollectionUtils.isEmpty(values)) {
        return;
    }
    boolean used = false;
    final TermsFilter filter = new TermsFilter();
    for (final Object object : values) {
        final String term = CoercionHelper.coerce(String.class, object);
        if (StringUtils.isNotEmpty(term)) {
            /* todo addterm */
            //filter.addTerm(new Term(field, term));
            used = true;
        }
    }
    if (used) {
        add(filter);
    }
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
@Override
public Filter makeFilter(SpatialArgs args) {
  final SpatialOperation op = args.getOperation();
  if (op != SpatialOperation.Intersects)
    throw new UnsupportedSpatialOperation(op);

  Shape shape = args.getShape();
  int detailLevel = grid.getLevelForDistance(args.resolveDistErr(ctx, distErrPct));
  List<Cell> cells = grid.getCells(shape, detailLevel,
      false,//no parents
      true);//simplify
  BytesRef[] terms = new BytesRef[cells.size()];
  int i = 0;
  for (Cell cell : cells) {
    terms[i++] = new BytesRef(cell.getTokenString());//TODO use cell.getTokenBytes()
  }
  return new TermsFilter(getFieldName(), terms);
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
@Override
public Filter makeFilter(SpatialArgs args) {
  final SpatialOperation op = args.getOperation();
  if (op != SpatialOperation.Intersects)
    throw new UnsupportedSpatialOperation(op);

  Shape shape = args.getShape();
  int detailLevel = grid.getLevelForDistance(args.resolveDistErr(ctx, distErrPct));
  List<Node> cells = grid.getNodes(shape, detailLevel,
      false,//no parents
      true);//simplify
  BytesRef[] terms = new BytesRef[cells.size()];
  int i = 0;
  for (Node cell : cells) {
    terms[i++] = new BytesRef(cell.getTokenString());
  }
  return new TermsFilter(getFieldName(), terms);
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
@Override
public Filter getFilter(Element e) throws ParserException {
  List<BytesRef> terms = new ArrayList<BytesRef>();
  String text = DOMUtils.getNonBlankTextOrFail(e);
  String fieldName = DOMUtils.getAttributeWithInheritanceOrFail(e, "fieldName");

  try {
    TokenStream ts = analyzer.tokenStream(fieldName, new StringReader(text));
    TermToBytesRefAttribute termAtt = ts.addAttribute(TermToBytesRefAttribute.class);
    Term term = null;
    BytesRef bytes = termAtt.getBytesRef();
    ts.reset();
    while (ts.incrementToken()) {
      termAtt.fillBytesRef();
      terms.add(BytesRef.deepCopyOf(bytes));
    }
    ts.end();
    ts.close();
  }
  catch (IOException ioe) {
    throw new RuntimeException("Error constructing terms from index:" + ioe);
  }
  return new TermsFilter(fieldName, terms);
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
@Override
public Filter makeFilter(SpatialArgs args) {
  final SpatialOperation op = args.getOperation();
  if (op != SpatialOperation.Intersects)
    throw new UnsupportedSpatialOperation(op);

  Shape shape = args.getShape();
  int detailLevel = grid.getLevelForDistance(args.resolveDistErr(ctx, distErrPct));
  List<Cell> cells = grid.getCells(shape, detailLevel, false,// no parents
      true);// simplify
  BytesRef[] terms = new BytesRef[cells.size()];
  int i = 0;
  for (Cell cell : cells) {
    terms[i++] = new BytesRef(cell.getTokenString());
  }
  return new TermsFilter(getFieldName(), terms);
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
@Override
public Filter makeFilter(SpatialArgs args) {
  final SpatialOperation op = args.getOperation();
  if (op != SpatialOperation.Intersects)
    throw new UnsupportedSpatialOperation(op);

  Shape shape = args.getShape();
  int detailLevel = grid.getLevelForDistance(args.resolveDistErr(ctx, distErrPct));
  List<Cell> cells = grid.getCells(shape, detailLevel,
      false,//no parents
      true);//simplify
  BytesRef[] terms = new BytesRef[cells.size()];
  int i = 0;
  for (Cell cell : cells) {
    terms[i++] = new BytesRef(cell.getTokenString());
  }
  return new TermsFilter(getFieldName(), terms);
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
@Override
public Filter getFilter(Element e) throws ParserException {
  List<BytesRef> terms = new ArrayList<BytesRef>();
  String text = DOMUtils.getNonBlankTextOrFail(e);
  String fieldName = DOMUtils.getAttributeWithInheritanceOrFail(e, "fieldName");

  TokenStream ts = null;
  try {
    ts = analyzer.tokenStream(fieldName, text);
    TermToBytesRefAttribute termAtt = ts.addAttribute(TermToBytesRefAttribute.class);
    BytesRef bytes = termAtt.getBytesRef();
    ts.reset();
    while (ts.incrementToken()) {
      termAtt.fillBytesRef();
      terms.add(BytesRef.deepCopyOf(bytes));
    }
    ts.end();
  }
  catch (IOException ioe) {
    throw new RuntimeException("Error constructing terms from index:" + ioe);
  } finally {
    IOUtils.closeWhileHandlingException(ts);
  }
  return new TermsFilter(fieldName, terms);
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
public Filter toFilter () {
    // Regular expression
    if (this.regex)
        return new QueryWrapperFilter(
                new RegexpQuery(new org.apache.lucene.index.Term(
                        this.field, this.term)));

    // Simple term
    return new TermsFilter(
            new org.apache.lucene.index.Term(this.field, this.term));
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
@Override
Filter makeFilter(String fname, BytesRef[] bytesRefs) {
  return new TermsFilter(fname, bytesRefs);
}
 

import org.apache.lucene.queries.TermsFilter; //导入依赖的package包/类
@Override
@SuppressWarnings("unchecked")
Filter makeFilter(String fname, Iterator<BytesRef> it) {
  return new TermsFilter(fname, IteratorUtils.toList(it));
}