| /* |
| * 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.index; |
| |
| import java.io.IOException; |
| import java.util.Calendar; |
| import java.util.GregorianCalendar; |
| import java.util.Locale; |
| import java.util.Random; |
| import java.util.TimeZone; |
| |
| import org.apache.lucene.util.TestUtil; |
| |
| /** |
| * <p> |
| * Merge policy for testing, it is like an alcoholic. |
| * It drinks (merges) at night, and randomly decides what to drink. |
| * During the daytime it sleeps. |
| * </p> |
| * <p> |
| * if tests pass with this, then they are likely to pass with any |
| * bizarro merge policy users might write. |
| * </p> |
| * <p> |
| * It is a fine bottle of champagne (Ordered by Martijn). |
| * </p> |
| */ |
| public class AlcoholicMergePolicy extends LogMergePolicy { |
| |
| private final Random random; |
| private final Calendar calendar; |
| |
| public AlcoholicMergePolicy(TimeZone tz, Random random) { |
| this.calendar = new GregorianCalendar(tz, Locale.ROOT); |
| calendar.setTimeInMillis(TestUtil.nextLong(random, 0, Long.MAX_VALUE)); |
| this.random = random; |
| maxMergeSize = TestUtil.nextInt(random, 1024 * 1024, Integer.MAX_VALUE); |
| } |
| |
| @Override |
| //@BlackMagic(level=Voodoo); |
| protected long size(SegmentCommitInfo info, MergeContext mergeContext) throws IOException { |
| int hourOfDay = calendar.get(Calendar.HOUR_OF_DAY); |
| if (hourOfDay < 6 || |
| hourOfDay > 20 || |
| // it's 5 o'clock somewhere |
| random.nextInt(23) == 5) { |
| |
| Drink[] values = Drink.values(); |
| // pick a random drink during the day |
| return values[random.nextInt(values.length)].drunkFactor * info.sizeInBytes(); |
| } |
| |
| return info.sizeInBytes(); |
| } |
| |
| private static enum Drink { |
| |
| Beer(15), Wine(17), Champagne(21), WhiteRussian(22), SingleMalt(30); |
| |
| long drunkFactor; |
| |
| Drink(long drunkFactor) { |
| this.drunkFactor = drunkFactor; |
| } |
| } |
| |
| } |