--- /dev/null
+package org.apache.lucene.xmlparser.builders;
+
+import java.io.IOException;
+import java.io.StringReader;
+
+import org.apache.lucene.analysis.Analyzer;
+import org.apache.lucene.analysis.TokenStream;
+import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
+import org.apache.lucene.index.Term;
+import org.apache.lucene.search.Filter;
+import org.apache.lucene.search.TermsFilter;
+import org.apache.lucene.xmlparser.DOMUtils;
+import org.apache.lucene.xmlparser.FilterBuilder;
+import org.apache.lucene.xmlparser.ParserException;
+import org.w3c.dom.Element;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ *
+ */
+public class TermsFilterBuilder implements FilterBuilder
+{
+ Analyzer analyzer;
+
+ /**
+ * @param analyzer
+ */
+ public TermsFilterBuilder(Analyzer analyzer)
+ {
+ this.analyzer = analyzer;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.apache.lucene.xmlparser.FilterBuilder#process(org.w3c.dom.Element)
+ */
+ public Filter getFilter(Element e) throws ParserException
+ {
+ TermsFilter tf = new TermsFilter();
+ String text = DOMUtils.getNonBlankTextOrFail(e);
+ String fieldName = DOMUtils.getAttributeWithInheritanceOrFail(e, "fieldName");
+
+ try
+ {
+ TokenStream ts = analyzer.reusableTokenStream(fieldName, new StringReader(text));
+ CharTermAttribute termAtt = ts.addAttribute(CharTermAttribute.class);
+ Term term = null;
+ ts.reset();
+ while (ts.incrementToken()) {
+ if (term == null)
+ {
+ term = new Term(fieldName, termAtt.toString());
+ } else
+ {
+// create from previous to save fieldName.intern overhead
+ term = term.createTerm(termAtt.toString());
+ }
+ tf.addTerm(term);
+ }
+ ts.end();
+ ts.close();
+ }
+ catch (IOException ioe)
+ {
+ throw new RuntimeException("Error constructing terms from index:"
+ + ioe);
+ }
+ return tf;
+ }
+}