| package org.apache.lucene.analysis; |
| |
| /** |
| * 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. |
| */ |
| |
| import java.io.IOException; |
| import java.util.Random; |
| |
| import org.apache.lucene.analysis.tokenattributes.PayloadAttribute; |
| import org.apache.lucene.index.Payload; |
| |
| /** |
| * TokenFilter that adds random fixed-length payloads. |
| */ |
| public final class MockFixedLengthPayloadFilter extends TokenFilter { |
| private final PayloadAttribute payloadAtt = addAttribute(PayloadAttribute.class); |
| private final Random random; |
| private final byte[] bytes; |
| private final Payload payload; |
| |
| public MockFixedLengthPayloadFilter(Random random, TokenStream in, int length) { |
| super(in); |
| if (length < 0) { |
| throw new IllegalArgumentException("length must be >= 0"); |
| } |
| this.random = random; |
| this.bytes = new byte[length]; |
| this.payload = new Payload(bytes); |
| } |
| |
| @Override |
| public boolean incrementToken() throws IOException { |
| if (input.incrementToken()) { |
| random.nextBytes(bytes); |
| payloadAtt.setPayload(payload); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| } |