1 package org.apache.lucene.analysis.sinks;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
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9 * the License. You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
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20 import java.text.DateFormat;
21 import java.text.ParseException;
22 import java.util.Date;
24 import org.apache.lucene.analysis.TeeSinkTokenFilter.SinkFilter;
25 import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
26 import org.apache.lucene.util.AttributeSource;
29 * Attempts to parse the {@link org.apache.lucene.analysis.Token#termBuffer()} as a Date using a {@link java.text.DateFormat}.
30 * If the value is a Date, it will add it to the sink.
34 public class DateRecognizerSinkFilter extends SinkFilter {
35 public static final String DATE_TYPE = "date";
37 protected DateFormat dateFormat;
38 protected CharTermAttribute termAtt;
41 * Uses {@link java.text.SimpleDateFormat#getDateInstance()} as the {@link java.text.DateFormat} object.
43 public DateRecognizerSinkFilter() {
44 this(DateFormat.getDateInstance());
47 public DateRecognizerSinkFilter(DateFormat dateFormat) {
48 this.dateFormat = dateFormat;
52 public boolean accept(AttributeSource source) {
53 if (termAtt == null) {
54 termAtt = source.addAttribute(CharTermAttribute.class);
57 Date date = dateFormat.parse(termAtt.toString());//We don't care about the date, just that we can parse it as a date
61 } catch (ParseException e) {