| /* |
| * 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.cassandra.service; |
| |
| import java.io.Serializable; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.cassandra.diag.DiagnosticEvent; |
| |
| /** |
| * Events related to {@link PendingRangeCalculatorService}. |
| */ |
| final class PendingRangeCalculatorServiceEvent extends DiagnosticEvent |
| { |
| private final PendingRangeCalculatorServiceEventType type; |
| private final int taskCount; |
| |
| public enum PendingRangeCalculatorServiceEventType |
| { |
| TASK_STARTED, |
| TASK_FINISHED_SUCCESSFULLY, |
| TASK_EXECUTION_REJECTED, |
| TASK_COUNT_CHANGED |
| } |
| |
| PendingRangeCalculatorServiceEvent(PendingRangeCalculatorServiceEventType type) |
| { |
| this(type, -1); |
| } |
| |
| PendingRangeCalculatorServiceEvent(PendingRangeCalculatorServiceEventType type, |
| int taskCount) |
| { |
| this.type = type; |
| this.taskCount = taskCount; |
| } |
| |
| public int getTaskCount() |
| { |
| return taskCount; |
| } |
| |
| public PendingRangeCalculatorServiceEventType getType() |
| { |
| return type; |
| } |
| |
| public Map<String, Serializable> toMap() |
| { |
| // be extra defensive against nulls and bugs |
| if (taskCount < 0) |
| return Collections.emptyMap(); |
| HashMap<String, Serializable> ret = new HashMap<>(); |
| ret.put("taskCount", taskCount); |
| return ret; |
| } |
| } |