| /* |
| * 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.repair.state; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.cassandra.utils.Clock; |
| |
| public interface Completable<I> |
| { |
| I getId(); |
| |
| long getInitializedAtMillis(); |
| |
| long getInitializedAtNanos(); |
| |
| long getLastUpdatedAtMillis(); |
| |
| long getLastUpdatedAtNanos(); |
| |
| default long getDurationMillis() |
| { |
| long endNanos = getLastUpdatedAtNanos(); |
| if (!isComplete()) |
| endNanos = Clock.Global.nanoTime(); |
| return TimeUnit.NANOSECONDS.toMillis(endNanos - getInitializedAtNanos()); |
| } |
| |
| Result getResult(); |
| |
| default boolean isComplete() |
| { |
| return getResult() != null; |
| } |
| |
| default String getFailureCause() |
| { |
| Result r = getResult(); |
| if (r == null || r.kind == Result.Kind.SUCCESS) |
| return null; |
| return r.message; |
| } |
| |
| default String getSuccessMessage() |
| { |
| Result r = getResult(); |
| if (r == null || r.kind != Result.Kind.SUCCESS) |
| return null; |
| return r.message; |
| } |
| |
| class Result |
| { |
| public enum Kind |
| {SUCCESS, SKIPPED, FAILURE} |
| |
| public final Result.Kind kind; |
| public final String message; |
| |
| private Result(Result.Kind kind, String message) |
| { |
| this.kind = kind; |
| this.message = message; |
| } |
| |
| protected static Result success() |
| { |
| return new Result(Result.Kind.SUCCESS, null); |
| } |
| |
| protected static Result success(String msg) |
| { |
| return new Result(Result.Kind.SUCCESS, msg); |
| } |
| |
| protected static Result skip(String msg) |
| { |
| return new Result(Result.Kind.SKIPPED, msg); |
| } |
| |
| protected static Result fail(String msg) |
| { |
| return new Result(Result.Kind.FAILURE, msg); |
| } |
| } |
| } |