package org.apache.lucene.analysis.payloads;
/**
* Copyright 2004 The Apache Software Foundation
*
* Licensed 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.
*/
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.MockTokenizer;
import org.apache.lucene.analysis.TokenFilter;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
import org.apache.lucene.analysis.tokenattributes.PayloadAttribute;
import org.apache.lucene.analysis.tokenattributes.TypeAttribute;
import java.io.IOException;
import java.io.StringReader;
public class NumericPayloadTokenFilterTest extends BaseTokenStreamTestCase {
public void test() throws IOException {
String test = "The quick red fox jumped over the lazy brown dogs";
NumericPayloadTokenFilter nptf = new NumericPayloadTokenFilter(new WordTokenFilter(new MockTokenizer(new StringReader(test), MockTokenizer.WHITESPACE, false)), 3, "D");
boolean seenDogs = false;
CharTermAttribute termAtt = nptf.getAttribute(CharTermAttribute.class);
TypeAttribute typeAtt = nptf.getAttribute(TypeAttribute.class);
PayloadAttribute payloadAtt = nptf.getAttribute(PayloadAttribute.class);
nptf.reset();
while (nptf.incrementToken()) {
if (termAtt.toString().equals("dogs")) {
seenDogs = true;
assertTrue(typeAtt.type() + " is not equal to " + "D", typeAtt.type().equals("D") == true);
assertTrue("payloadAtt.getPayload() is null and it shouldn't be", payloadAtt.getPayload() != null);
byte [] bytes = payloadAtt.getPayload().getData();//safe here to just use the bytes, otherwise we should use offset, length
assertTrue(bytes.length + " does not equal: " + payloadAtt.getPayload().length(), bytes.length == payloadAtt.getPayload().length());
assertTrue(payloadAtt.getPayload().getOffset() + " does not equal: " + 0, payloadAtt.getPayload().getOffset() == 0);
float pay = PayloadHelper.decodeFloat(bytes);
assertTrue(pay + " does not equal: " + 3, pay == 3);
} else {
assertTrue(typeAtt.type() + " is not null and it should be", typeAtt.type().equals("word"));
}
}
assertTrue(seenDogs + " does not equal: " + true, seenDogs == true);
}
private final class WordTokenFilter extends TokenFilter {
private final CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
private final TypeAttribute typeAtt = addAttribute(TypeAttribute.class);
private WordTokenFilter(TokenStream input) {
super(input);
}
@Override
public boolean incrementToken() throws IOException {
if (input.incrementToken()) {
if (termAtt.toString().equals("dogs"))
typeAtt.setType("D");
return true;
} else {
return false;
}
}
}
}