| /* |
| * |
| * 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.hadoop.hbase.client; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.Set; |
| import java.util.TreeMap; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * Container for Actions (i.e. Get, Delete, or Put), which are grouped by regionName. |
| */ |
| @InterfaceAudience.Private |
| public final class MultiAction { |
| // TODO: This class should not be visible outside of the client package. |
| |
| // map of regions to lists of puts/gets/deletes for that region. |
| protected Map<byte[], List<Action>> actions = new TreeMap<>(Bytes.BYTES_COMPARATOR); |
| |
| private long nonceGroup = HConstants.NO_NONCE; |
| |
| public MultiAction() { |
| super(); |
| } |
| |
| /** |
| * Get the total number of Actions |
| * |
| * @return total number of Actions for all groups in this container. |
| */ |
| public int size() { |
| int size = 0; |
| for (List<?> l : actions.values()) { |
| size += l.size(); |
| } |
| return size; |
| } |
| |
| /** |
| * Add an Action to this container based on it's regionName. If the regionName |
| * is wrong, the initial execution will fail, but will be automatically |
| * retried after looking up the correct region. |
| * |
| * @param regionName |
| * @param a |
| */ |
| public void add(byte[] regionName, Action a) { |
| add(regionName, Collections.singletonList(a)); |
| } |
| |
| /** |
| * Add an Action to this container based on it's regionName. If the regionName |
| * is wrong, the initial execution will fail, but will be automatically |
| * retried after looking up the correct region. |
| * |
| * @param regionName |
| * @param actionList list of actions to add for the region |
| */ |
| public void add(byte[] regionName, List<Action> actionList){ |
| List<Action> rsActions = actions.get(regionName); |
| if (rsActions == null) { |
| rsActions = new ArrayList<>(actionList.size()); |
| actions.put(regionName, rsActions); |
| } |
| rsActions.addAll(actionList); |
| } |
| |
| public void setNonceGroup(long nonceGroup) { |
| this.nonceGroup = nonceGroup; |
| } |
| |
| public Set<byte[]> getRegions() { |
| return actions.keySet(); |
| } |
| |
| public boolean hasNonceGroup() { |
| return nonceGroup != HConstants.NO_NONCE; |
| } |
| |
| public long getNonceGroup() { |
| return this.nonceGroup; |
| } |
| |
| // returns the max priority of all the actions |
| public int getPriority() { |
| Optional<Action> result = actions.values().stream().flatMap(List::stream) |
| .max((action1, action2) -> Math.max(action1.getPriority(), action2.getPriority())); |
| return result.isPresent() ? result.get().getPriority() : HConstants.PRIORITY_UNSET; |
| } |
| } |