| /* |
| * 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.modules.util; |
| |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.util.Set; |
| import java.util.concurrent.CancellationException; |
| |
| import org.apache.geode.cache.Cache; |
| import org.apache.geode.cache.CacheWriter; |
| import org.apache.geode.cache.ExpirationAction; |
| import org.apache.geode.cache.ExpirationAttributes; |
| import org.apache.geode.cache.GemFireCache; |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.cache.RegionAttributes; |
| import org.apache.geode.cache.control.RebalanceFactory; |
| import org.apache.geode.cache.control.RebalanceOperation; |
| import org.apache.geode.cache.control.RebalanceResults; |
| import org.apache.geode.cache.control.ResourceManager; |
| import org.apache.geode.cache.partition.PartitionMemberInfo; |
| import org.apache.geode.cache.partition.PartitionRebalanceInfo; |
| import org.apache.geode.internal.cache.xmlcache.CacheXmlGenerator; |
| import org.apache.geode.internal.cache.xmlcache.RegionAttributesCreation; |
| import org.apache.geode.modules.gatewaydelta.GatewayDeltaForwarderCacheListener; |
| import org.apache.geode.modules.session.catalina.callback.SessionExpirationCacheListener; |
| |
| public class RegionHelper { |
| public static final String NAME = "gemfire_modules"; |
| |
| public static Region createRegion(Cache cache, RegionConfiguration configuration) { |
| // Use the createRegion method so that the RegionAttributes creation can be reused by validate. |
| RegionAttributes requestedRegionAttributes = getRegionAttributes(cache, configuration); |
| @SuppressWarnings("unchecked") |
| Region region = |
| cache.createRegionFactory(requestedRegionAttributes).create(configuration.getRegionName()); |
| |
| // Log the cache xml if debugging is enabled. I'd like to be able to just |
| // log the region, but that API is not available. |
| if (configuration.getEnableDebugListener()) { |
| cache.getLogger().info("Created new session region: " + region); |
| cache.getLogger().info(generateCacheXml(cache)); |
| } |
| return region; |
| } |
| |
| public static void validateRegion(Cache cache, RegionConfiguration configuration, Region region) { |
| // Get the attributes of the existing region |
| RegionAttributes existingAttributes = region.getAttributes(); |
| |
| // Create region attributes creation on existing region attributes. |
| // The RAC is created to execute the sameAs method. |
| RegionAttributesCreation existingRACreation = |
| new RegionAttributesCreation(existingAttributes, false); |
| |
| // Create requested region attributes |
| RegionAttributes requestedRegionAttributes = getRegionAttributes(cache, configuration); |
| |
| // Compare the two region attributes. This method either returns true or throws a |
| // RuntimeException. |
| existingRACreation.sameAs(requestedRegionAttributes); |
| } |
| |
| public static RebalanceResults rebalanceCache(GemFireCache cache) |
| throws CancellationException, InterruptedException { |
| ResourceManager resourceManager = cache.getResourceManager(); |
| RebalanceFactory rebalanceFactory = resourceManager.createRebalanceFactory(); |
| RebalanceOperation rebalanceOperation = rebalanceFactory.start(); |
| return rebalanceOperation.getResults(); |
| } |
| |
| public static String generateCacheXml(Cache cache) { |
| try { |
| StringWriter sw = new StringWriter(); |
| PrintWriter pw = new PrintWriter(sw, true); |
| CacheXmlGenerator.generate(cache, pw, false); |
| pw.close(); |
| return sw.toString(); |
| } catch (Exception ex) { |
| return ""; |
| } |
| } |
| |
| static RegionAttributes getRegionAttributes(Cache cache, RegionConfiguration configuration) { |
| // Create the requested attributes |
| RegionAttributes baseRequestedAttributes = |
| cache.getRegionAttributes(configuration.getRegionAttributesId()); |
| |
| if (baseRequestedAttributes == null) { |
| throw new IllegalArgumentException( |
| "No region attributes named " + configuration.getRegionAttributesId() + " are defined."); |
| } |
| |
| RegionAttributesCreation requestedAttributes = |
| new RegionAttributesCreation(baseRequestedAttributes, false); |
| |
| // Set the expiration time and action if necessary |
| int maxInactiveInterval = configuration.getMaxInactiveInterval(); |
| if (maxInactiveInterval != RegionConfiguration.DEFAULT_MAX_INACTIVE_INTERVAL) { |
| requestedAttributes.setStatisticsEnabled(true); |
| |
| if (configuration.getCustomExpiry() == null) { |
| requestedAttributes.setEntryIdleTimeout( |
| new ExpirationAttributes(maxInactiveInterval, ExpirationAction.DESTROY)); |
| } else { |
| requestedAttributes.setCustomEntryIdleTimeout(configuration.getCustomExpiry()); |
| } |
| } |
| |
| // Add the gateway delta region cache listener if necessary |
| if (configuration.getEnableGatewayDeltaReplication()) { |
| // Add the listener that forwards created/destroyed deltas to the gateway |
| requestedAttributes.addCacheListener(new GatewayDeltaForwarderCacheListener(cache)); |
| } |
| |
| // Enable gateway replication if necessary |
| // TODO: Disabled for WAN |
| // requestedFactory.setEnableGateway(configuration.getEnableGatewayReplication()); |
| |
| // Add the debug cache listener if necessary |
| if (configuration.getEnableDebugListener()) { |
| requestedAttributes.addCacheListener(new DebugCacheListener()); |
| } |
| |
| if (configuration.getSessionExpirationCacheListener()) { |
| requestedAttributes.addCacheListener(new SessionExpirationCacheListener()); |
| } |
| |
| // Add the cacheWriter if necessary |
| if (configuration.getCacheWriterName() != null) { |
| try { |
| CacheWriter writer = |
| (CacheWriter) Class.forName(configuration.getCacheWriterName()).newInstance(); |
| requestedAttributes.setCacheWriter(writer); |
| } catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) { |
| throw new RuntimeException("Could not set a cacheWriter for the region", e); |
| } |
| } |
| |
| return requestedAttributes; |
| } |
| |
| private RegionHelper() {} |
| |
| public static String getRebalanceResultsMessage(RebalanceResults results) { |
| StringBuilder builder = new StringBuilder(); |
| for (PartitionRebalanceInfo rebalanceInfo : results.getPartitionRebalanceDetails()) { |
| // Log the overall results |
| fillInRebalanceResultsSummary(builder, rebalanceInfo); |
| |
| // Log the 'Before' results |
| fillInRebalanceResultsMemberDetails(builder, rebalanceInfo.getPartitionMemberDetailsBefore(), |
| "Before"); |
| |
| // Log the 'After' results |
| fillInRebalanceResultsMemberDetails(builder, rebalanceInfo.getPartitionMemberDetailsAfter(), |
| "After"); |
| } |
| return builder.toString(); |
| } |
| |
| private static void fillInRebalanceResultsSummary(StringBuilder builder, |
| PartitionRebalanceInfo rebalanceInfo) { |
| builder.append("\nRebalanced region ").append(rebalanceInfo.getRegionPath()).append(" in ") |
| .append(rebalanceInfo.getTime()).append(" ms") |
| |
| .append("\nCreated ").append(rebalanceInfo.getBucketCreatesCompleted()) |
| .append(" buckets containing ").append(rebalanceInfo.getBucketCreateBytes()) |
| .append(" bytes in ").append(rebalanceInfo.getBucketCreateTime()).append(" ms") |
| |
| .append("\nTransferred ").append(rebalanceInfo.getBucketTransfersCompleted()) |
| .append(" buckets containing ").append(rebalanceInfo.getBucketTransferBytes()) |
| .append(" bytes in ").append(rebalanceInfo.getBucketTransferTime()).append(" ms") |
| |
| .append("\nTransferred ").append(rebalanceInfo.getPrimaryTransfersCompleted()) |
| .append(" primary buckets in ").append(rebalanceInfo.getPrimaryTransferTime()) |
| .append(" ms"); |
| } |
| |
| private static void fillInRebalanceResultsMemberDetails(StringBuilder builder, |
| Set<PartitionMemberInfo> memberInfoSet, String when) { |
| builder.append("\nMember Info ").append(when).append(" Rebalance:\n"); |
| for (PartitionMemberInfo info : memberInfoSet) { |
| builder.append("\tdistributedMember=").append(info.getDistributedMember()) |
| .append(", configuredMaxMemory=").append(info.getConfiguredMaxMemory()).append(", size=") |
| .append(info.getSize()).append(", bucketCount=").append(info.getBucketCount()) |
| .append(", primaryCount=").append(info.getPrimaryCount()); |
| } |
| } |
| } |