| /* |
| * 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.admin.remote; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.DataSerializer; |
| import org.apache.geode.admin.RegionSubRegionSnapshot; |
| import org.apache.geode.cache.CacheFactory; |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.distributed.DistributedSystem; |
| import org.apache.geode.distributed.internal.DistributionManager; |
| import org.apache.geode.distributed.internal.membership.InternalDistributedMember; |
| import org.apache.geode.internal.cache.InternalCache; |
| import org.apache.geode.internal.serialization.DeserializationContext; |
| import org.apache.geode.internal.serialization.SerializationContext; |
| import org.apache.geode.logging.internal.log4j.api.LogService; |
| |
| /** |
| * Admin response carrying region info for a member |
| */ |
| public class RegionSubRegionsSizeResponse extends AdminResponse implements Cancellable { |
| |
| private static final Logger logger = LogService.getLogger(); |
| |
| private RegionSubRegionSnapshot snapshot; |
| |
| private boolean cancelled; |
| |
| public RegionSubRegionsSizeResponse() { |
| // do nothing |
| } |
| |
| public RegionSubRegionSnapshot getSnapshot() { |
| return this.snapshot; |
| } |
| |
| /** |
| * Returns a {@code RegionSubRegionsSizeResponse} that will be returned to the specified |
| * recipient. The message will contains a copy of the region snapshot |
| */ |
| public static RegionSubRegionsSizeResponse create(DistributionManager dm, |
| InternalDistributedMember recipient) { |
| RegionSubRegionsSizeResponse m = new RegionSubRegionsSizeResponse(); |
| m.setRecipient(recipient); |
| m.snapshot = null; |
| m.cancelled = false; |
| |
| return m; |
| } |
| |
| void populateSnapshot(DistributionManager dm) { |
| if (this.cancelled) { |
| return; |
| } |
| |
| DistributedSystem sys = dm.getSystem(); |
| InternalCache cache = (InternalCache) CacheFactory.getInstance(sys); |
| |
| if (this.cancelled) { |
| return; |
| } |
| |
| RegionSubRegionSnapshot root = new RegionSubRegionSnapshot(); |
| /* |
| * This root exists only on admin side as a root of all root-region just to create a tree-like |
| * structure |
| */ |
| root.setName("Root"); |
| root.setParent(null); |
| root.setEntryCount(0); |
| |
| Set rootRegions = cache.rootRegions(); |
| this.snapshot = root; |
| |
| populateRegionSubRegions(root, rootRegions, cache); |
| } |
| |
| /** |
| * Populates the collection of sub-region snapshots for the parentSnapShot with snapshots for the |
| * regions given. |
| * |
| * @param parentSnapShot RegionSubRegionSnapshot of a parent region |
| * @param regions collection of sub-regions of the region represented by parentSnapShot |
| * @param cache cache instance is used for to get the LogWriter instance to log exceptions if any |
| */ |
| private void populateRegionSubRegions(RegionSubRegionSnapshot parentSnapShot, Set regions, |
| InternalCache cache) { |
| if (this.cancelled) { |
| return; |
| } |
| |
| for (Object region : regions) { |
| Region subRegion = (Region) region; |
| |
| try { |
| RegionSubRegionSnapshot subRegionSnapShot = new RegionSubRegionSnapshot(subRegion); |
| parentSnapShot.addSubRegion(subRegionSnapShot); |
| |
| Set subRegions = subRegion.subregions(false); |
| populateRegionSubRegions(subRegionSnapShot, subRegions, cache); |
| } catch (Exception e) { |
| logger.debug("Failed to create snapshot for region: {}. Continuing with next region.", |
| subRegion.getFullPath(), e); |
| } |
| } |
| } |
| |
| @Override |
| public synchronized void cancel() { |
| this.cancelled = true; |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| super.toData(out, context); |
| out.writeBoolean(this.cancelled); |
| DataSerializer.writeObject(this.snapshot, out); |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| super.fromData(in, context); |
| this.cancelled = in.readBoolean(); |
| this.snapshot = DataSerializer.readObject(in); |
| } |
| |
| /** |
| * Returns the DataSerializer fixed id for the class that implements this method. |
| */ |
| @Override |
| public int getDSFID() { |
| return REGION_SUB_SIZE_RESPONSE; |
| } |
| |
| @Override |
| public String toString() { |
| return "RegionSubRegionsSizeResponse [from=" + this.getRecipient() + ' ' |
| + (this.snapshot == null ? "null" : this.snapshot.toString()); |
| } |
| } |