| /** |
| * 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.ozone.upgrade; |
| |
| import static org.apache.hadoop.ozone.upgrade.UpgradeFinalizer.Status.FINALIZATION_IN_PROGRESS; |
| import static org.apache.hadoop.ozone.upgrade.UpgradeFinalizer.Status.FINALIZATION_REQUIRED; |
| |
| import java.io.IOException; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * DefaultUpgradeFinalizationExecutor for driving the main part of finalization. |
| * Unit/Integration tests can override this to provide error injected version |
| * of this class. |
| */ |
| public class DefaultUpgradeFinalizationExecutor<T> { |
| static final Logger LOG = |
| LoggerFactory.getLogger(DefaultUpgradeFinalizationExecutor.class); |
| |
| public DefaultUpgradeFinalizationExecutor() { |
| } |
| |
| public void execute(T component, BasicUpgradeFinalizer finalizer) |
| throws IOException { |
| try { |
| finalizer.emitStartingMsg(); |
| finalizer.getVersionManager() |
| .setUpgradeState(FINALIZATION_IN_PROGRESS); |
| |
| finalizer.preFinalizeUpgrade(component); |
| |
| finalizer.finalizeUpgrade(component); |
| |
| finalizer.postFinalizeUpgrade(component); |
| |
| finalizer.emitFinishedMsg(); |
| } catch (Exception e) { |
| LOG.warn("Upgrade Finalization failed with following Exception. ", e); |
| if (finalizer.getVersionManager().needsFinalization()) { |
| finalizer.getVersionManager() |
| .setUpgradeState(FINALIZATION_REQUIRED); |
| throw (e); |
| } |
| } finally { |
| finalizer.markFinalizationDone(); |
| } |
| } |
| } |