01: package org.apache.lucene.analysis.payloads;
02:
03: /**
04: * Licensed to the Apache Software Foundation (ASF) under one or more
05: * contributor license agreements. See the NOTICE file distributed with
06: * this work for additional information regarding copyright ownership.
07: * The ASF licenses this file to You under the Apache License, Version 2.0
08: * (the "License"); you may not use this file except in compliance with
09: * the License. You may obtain a copy of the License at
10: *
11: * http://www.apache.org/licenses/LICENSE-2.0
12: *
13: * Unless required by applicable law or agreed to in writing, software
14: * distributed under the License is distributed on an "AS IS" BASIS,
15: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16: * See the License for the specific language governing permissions and
17: * limitations under the License.
18: */
19:
20: import org.apache.lucene.analysis.TokenFilter;
21: import org.apache.lucene.analysis.TokenStream;
22: import org.apache.lucene.analysis.Token;
23: import org.apache.lucene.index.Payload;
24:
25: import java.io.IOException;
26:
27: /**
28: * Makes the {@link org.apache.lucene.analysis.Token#type()} a payload.
29: *
30: * Encodes the type using {@link String#getBytes(String)} with "UTF-8" as the encoding
31: *
32: **/
33: public class TypeAsPayloadTokenFilter extends TokenFilter {
34:
35: public TypeAsPayloadTokenFilter(TokenStream input) {
36: super (input);
37:
38: }
39:
40: public Token next(Token result) throws IOException {
41: result = input.next(result);
42: if (result != null && result.type() != null
43: && result.type().equals("") == false) {
44: result.setPayload(new Payload(result.type().getBytes(
45: "UTF-8")));
46: }
47: return result;
48: }
49: }
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