| /* |
| * 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.geode.internal.cache; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Random; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| import org.apache.geode.internal.cache.partitioned.FetchKeysMessage; |
| import org.apache.geode.internal.cache.partitioned.FetchKeysMessage.FetchKeysResponse; |
| import org.apache.geode.internal.cache.partitioned.PRLocallyDestroyedException; |
| import org.apache.geode.internal.cache.tier.InterestType; |
| import org.apache.geode.internal.logging.LogService; |
| |
| /** |
| * Extracted from {@link PartitionedRegion}. This is a utility used by Hydra test code only. |
| */ |
| public class PartitionedRegionGetSomeKeys { |
| |
| private static final Logger logger = LogService.getLogger(); |
| |
| /** |
| * Test Method: Get a random set of keys from a randomly selected bucket using the provided |
| * {@code Random} number generator. |
| * |
| * @return A set of keys from a randomly chosen bucket or {@link Collections#EMPTY_SET} |
| */ |
| public static Set<?> getSomeKeys(PartitionedRegion partitionedRegion, Random random) |
| throws IOException, ClassNotFoundException { |
| Set<Integer> bucketIdSet = partitionedRegion.getRegionAdvisor().getBucketSet(); |
| |
| if (bucketIdSet != null && !bucketIdSet.isEmpty()) { |
| Object[] bucketIds = bucketIdSet.toArray(); |
| Integer bucketId = null; |
| Set<?> someKeys; |
| |
| // Randomly pick a node to get some data from |
| for (int i = 0; i < bucketIds.length; i++) { |
| try { |
| int whichBucket = random.nextInt(bucketIds.length); |
| bucketId = (Integer) bucketIds[whichBucket]; |
| |
| InternalDistributedMember member = partitionedRegion.getNodeForBucketRead(bucketId); |
| if (member != null) { |
| if (member.equals(partitionedRegion.getMyId())) { |
| someKeys = partitionedRegion.getDataStore().handleRemoteGetKeys(bucketId, |
| InterestType.REGULAR_EXPRESSION, ".*", false); |
| } else { |
| FetchKeysResponse fetchKeysResponse = |
| FetchKeysMessage.send(member, partitionedRegion, bucketId, false); |
| someKeys = fetchKeysResponse.waitForKeys(); |
| } |
| |
| if (someKeys != null && !someKeys.isEmpty()) { |
| return someKeys; |
| } |
| } |
| } catch (ForceReattemptException movinOn) { |
| partitionedRegion.checkReadiness(); |
| logger.debug( |
| "Test hook getSomeKeys caught a ForceReattemptException for bucketId={}{}{}. Moving on to another bucket", |
| partitionedRegion.getPRId(), partitionedRegion.BUCKET_ID_SEPARATOR, bucketId, |
| movinOn); |
| continue; |
| } catch (PRLocallyDestroyedException ignore) { |
| logger.debug("getSomeKeys: Encountered PRLocallyDestroyedException"); |
| partitionedRegion.checkReadiness(); |
| continue; |
| } |
| } |
| } |
| return Collections.emptySet(); |
| } |
| } |