| /** |
| * 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.hdfs.protocolPB; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.hadoop.conf.ReconfigurationTaskStatus; |
| import org.apache.hadoop.conf.ReconfigurationUtil.PropertyChange; |
| import org.apache.hadoop.hdfs.protocol.proto.ReconfigurationProtocolProtos.GetReconfigurationStatusConfigChangeProto; |
| import org.apache.hadoop.hdfs.protocol.proto.ReconfigurationProtocolProtos.GetReconfigurationStatusResponseProto; |
| import org.apache.hadoop.hdfs.protocol.proto.ReconfigurationProtocolProtos.ListReconfigurablePropertiesResponseProto; |
| |
| import com.google.common.base.Optional; |
| |
| /** |
| * This is a server side utility class that handles |
| * common logic to to parameter reconfiguration. |
| */ |
| public final class ReconfigurationProtocolServerSideUtils { |
| private ReconfigurationProtocolServerSideUtils() { |
| } |
| |
| public static ListReconfigurablePropertiesResponseProto |
| listReconfigurableProperties( |
| List<String> reconfigurableProperties) { |
| ListReconfigurablePropertiesResponseProto.Builder builder = |
| ListReconfigurablePropertiesResponseProto.newBuilder(); |
| builder.addAllName(reconfigurableProperties); |
| return builder.build(); |
| } |
| |
| public static GetReconfigurationStatusResponseProto getReconfigurationStatus( |
| ReconfigurationTaskStatus status) { |
| GetReconfigurationStatusResponseProto.Builder builder = |
| GetReconfigurationStatusResponseProto.newBuilder(); |
| |
| builder.setStartTime(status.getStartTime()); |
| if (status.stopped()) { |
| builder.setEndTime(status.getEndTime()); |
| assert status.getStatus() != null; |
| for (Map.Entry<PropertyChange, Optional<String>> result : status |
| .getStatus().entrySet()) { |
| GetReconfigurationStatusConfigChangeProto.Builder changeBuilder = |
| GetReconfigurationStatusConfigChangeProto.newBuilder(); |
| PropertyChange change = result.getKey(); |
| changeBuilder.setName(change.prop); |
| changeBuilder.setOldValue(change.oldVal != null ? change.oldVal : ""); |
| if (change.newVal != null) { |
| changeBuilder.setNewValue(change.newVal); |
| } |
| if (result.getValue().isPresent()) { |
| // Get full stack trace. |
| changeBuilder.setErrorMessage(result.getValue().get()); |
| } |
| builder.addChanges(changeBuilder); |
| } |
| } |
| return builder.build(); |
| } |
| } |