1
package org.apache.lucene.benchmark.byTask.feeds;
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
8
* (the "License"); you may not use this file except in compliance with
9
* the License. You may obtain a copy of the License at
11
* http://www.apache.org/licenses/LICENSE-2.0
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.
20
import java.io.IOException;
23
* Represents content from a specified source, such as TREC, Reuters etc. A
24
* {@link ContentSource} is responsible for creating {@link DocData} objects for
25
* its documents to be consumed by {@link DocMaker}. It also keeps track
26
* of various statistics, such as how many documents were generated, size in
29
* For supported configuration parameters see {@link ContentItemsSource}.
31
public abstract class ContentSource extends ContentItemsSource {
33
/** Returns the next {@link DocData} from the content source.
34
* Implementations must account for multi-threading, as multiple threads
35
* can call this method simultaneously. */
36
public abstract DocData getNextDocData(DocData docData) throws NoMoreDataException, IOException;