| /* |
| * 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. |
| */ |
| package org.apache.lucene.payloads; |
| |
| import org.apache.lucene.index.PostingsEnum; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.search.spans.SpanCollector; |
| import org.apache.lucene.util.BytesRef; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| |
| /** |
| * SpanCollector for collecting payloads |
| */ |
| public class PayloadSpanCollector implements SpanCollector { |
| |
| private final Collection<byte[]> payloads = new ArrayList<>(); |
| |
| @Override |
| public void collectLeaf(PostingsEnum postings, int position, Term term) throws IOException { |
| BytesRef payload = postings.getPayload(); |
| if (payload == null) |
| return; |
| final byte[] bytes = new byte[payload.length]; |
| System.arraycopy(payload.bytes, payload.offset, bytes, 0, payload.length); |
| payloads.add(bytes); |
| } |
| |
| @Override |
| public void reset() { |
| payloads.clear(); |
| } |
| |
| /** |
| * @return the collected payloads |
| */ |
| public Collection<byte[]> getPayloads() { |
| return payloads; |
| } |
| } |