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[AMBARI-23036] Create Lifecycle changes for Upgrade Packs #430
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133 changes: 133 additions & 0 deletions
133
ambari-server/src/main/java/org/apache/ambari/server/state/stack/upgrade/Lifecycle.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| /* | ||
| * 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.ambari.server.state.stack.upgrade; | ||
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| import java.util.Collection; | ||
| import java.util.List; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
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| import javax.xml.bind.annotation.XmlAccessType; | ||
| import javax.xml.bind.annotation.XmlAccessorType; | ||
| import javax.xml.bind.annotation.XmlAttribute; | ||
| import javax.xml.bind.annotation.XmlElement; | ||
| import javax.xml.bind.annotation.XmlElementWrapper; | ||
| import javax.xml.bind.annotation.XmlEnum; | ||
| import javax.xml.bind.annotation.XmlEnumValue; | ||
| import javax.xml.bind.annotation.XmlRootElement; | ||
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| /** | ||
| * A lifecycle is used to delineate specific portions of an upgrade. Orchestration | ||
| * will occur based on the lifecycle phases in order they are declared in {@link LifecycleType}, | ||
| * namely: | ||
| * | ||
| * <ol> | ||
| * <li>INSTALL</li> | ||
| * <li>QUIET</li> | ||
| * <li>SNAPSHOT</li> | ||
| * <li>PREPARE</li> | ||
| * <li>STOP</li> | ||
| * <li>UPGRADE</li> | ||
| * <li>START</li> | ||
| * <li>FINALIZE</li> | ||
| * </ol> | ||
| */ | ||
| @XmlAccessorType(XmlAccessType.FIELD) | ||
| @XmlRootElement | ||
| public class Lifecycle { | ||
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| @XmlAttribute | ||
| public LifecycleType type; | ||
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| @XmlElementWrapper(name="order") | ||
| @XmlElement(name="group") | ||
| public List<Grouping> groups; | ||
|
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| /** | ||
| * Identifies the lifecycle types | ||
| */ | ||
| @XmlEnum | ||
| public enum LifecycleType { | ||
|
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| /** | ||
| * Work required that can be classified as installation. Normally installation of | ||
| * bits occurs outside the scope of upgrade orchestration. | ||
| */ | ||
| @XmlEnumValue("install") | ||
| INSTALL(1.0f), | ||
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| /** | ||
| * Work to stop and wait on, for example, queues or topologies. | ||
| */ | ||
| @XmlEnumValue("quiet") | ||
| QUIET(2.0f), | ||
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| /** | ||
| * Work required to snapshot or other backup. | ||
| */ | ||
| @XmlEnumValue("snapshot") | ||
| SNAPSHOT(3.0f), | ||
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| /** | ||
| * Work required to prepare to upgrade. | ||
| */ | ||
| @XmlEnumValue("prepare") | ||
| PREPARE(4.0f), | ||
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| /** | ||
| * Work required to stop a service. | ||
| */ | ||
| @XmlEnumValue("stop") | ||
| STOP(5.0f), | ||
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| /** | ||
| * For a Rolling upgrade, work required to restart and upgrade the service. | ||
| */ | ||
| @XmlEnumValue("upgrade") | ||
| UPGRADE(6.0f), | ||
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| /** | ||
| * Work required to start a service. | ||
| */ | ||
| @XmlEnumValue("start") | ||
| START(7.0f), | ||
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| /** | ||
| * Work required to finalize. Will not happen until the end of the upgrade. | ||
| */ | ||
| @XmlEnumValue("finalize") | ||
| FINALIZE(8.0f); | ||
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| private float m_order; | ||
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| private LifecycleType(float order) { | ||
| m_order = order; | ||
| } | ||
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| /** | ||
| * Returns the ordered collection of lifecycle types. This is prefered over {@link #values()} | ||
| * to preserve ordering when adding new values. | ||
| */ | ||
| public static Collection<LifecycleType> ordered() { | ||
| return Stream.of(LifecycleType.values()).sorted((l1, l2) -> | ||
| Float.compare(l1.m_order, l2.m_order)).collect(Collectors.toList()); | ||
| } | ||
| } | ||
|
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| } | ||
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Welcome to the dark side ... :)