| /** |
| * 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.server.federation.store.records.impl.pb; |
| |
| import java.io.IOException; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.MountTableRecordProto; |
| import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.MountTableRecordProto.Builder; |
| import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.MountTableRecordProto.DestOrder; |
| import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.MountTableRecordProtoOrBuilder; |
| import org.apache.hadoop.hdfs.federation.protocol.proto.HdfsServerFederationProtos.RemoteLocationProto; |
| import org.apache.hadoop.hdfs.server.federation.resolver.RemoteLocation; |
| import org.apache.hadoop.hdfs.server.federation.resolver.order.DestinationOrder; |
| import org.apache.hadoop.hdfs.server.federation.store.protocol.impl.pb.FederationProtocolPBTranslator; |
| import org.apache.hadoop.hdfs.server.federation.store.records.MountTable; |
| |
| import com.google.protobuf.Message; |
| |
| /** |
| * Protobuf implementation of the MountTable record. |
| */ |
| public class MountTablePBImpl extends MountTable implements PBRecord { |
| |
| private FederationProtocolPBTranslator<MountTableRecordProto, Builder, |
| MountTableRecordProtoOrBuilder> translator = |
| new FederationProtocolPBTranslator<MountTableRecordProto, Builder, |
| MountTableRecordProtoOrBuilder>(MountTableRecordProto.class); |
| |
| public MountTablePBImpl() { |
| } |
| |
| public MountTablePBImpl(MountTableRecordProto proto) { |
| this.setProto(proto); |
| } |
| |
| @Override |
| public MountTableRecordProto getProto() { |
| return this.translator.build(); |
| } |
| |
| @Override |
| public void setProto(Message proto) { |
| this.translator.setProto(proto); |
| } |
| |
| @Override |
| public void readInstance(String base64String) throws IOException { |
| this.translator.readInstance(base64String); |
| } |
| |
| @Override |
| public String getSourcePath() { |
| MountTableRecordProtoOrBuilder proto = this.translator.getProtoOrBuilder(); |
| if (!proto.hasSrcPath()) { |
| return null; |
| } |
| return proto.getSrcPath(); |
| } |
| |
| @Override |
| public void setSourcePath(String path) { |
| Builder builder = this.translator.getBuilder(); |
| if (path == null) { |
| builder.clearSrcPath(); |
| } else { |
| builder.setSrcPath(path); |
| } |
| } |
| |
| @Override |
| public List<RemoteLocation> getDestinations() { |
| MountTableRecordProtoOrBuilder proto = this.translator.getProtoOrBuilder(); |
| if (proto.getDestinationsCount() == 0) { |
| return null; |
| } |
| |
| final List<RemoteLocation> ret = new LinkedList<>(); |
| final List<RemoteLocationProto> destList = proto.getDestinationsList(); |
| for (RemoteLocationProto dest : destList) { |
| String nsId = dest.getNameserviceId(); |
| String path = dest.getPath(); |
| RemoteLocation loc = new RemoteLocation(nsId, path); |
| ret.add(loc); |
| } |
| return ret; |
| } |
| |
| @Override |
| public void setDestinations(final List<RemoteLocation> dests) { |
| Builder builder = this.translator.getBuilder(); |
| builder.clearDestinations(); |
| for (RemoteLocation dest : dests) { |
| RemoteLocationProto.Builder itemBuilder = |
| RemoteLocationProto.newBuilder(); |
| String nsId = dest.getNameserviceId(); |
| String path = dest.getDest(); |
| itemBuilder.setNameserviceId(nsId); |
| itemBuilder.setPath(path); |
| RemoteLocationProto item = itemBuilder.build(); |
| builder.addDestinations(item); |
| } |
| } |
| |
| @Override |
| public boolean addDestination(String nsId, String path) { |
| // Check if the location is already there |
| List<RemoteLocation> dests = getDestinations(); |
| for (RemoteLocation dest : dests) { |
| if (dest.getNameserviceId().equals(nsId) && dest.getDest().equals(path)) { |
| return false; |
| } |
| } |
| |
| // Add it to the existing list |
| Builder builder = this.translator.getBuilder(); |
| RemoteLocationProto.Builder itemBuilder = |
| RemoteLocationProto.newBuilder(); |
| itemBuilder.setNameserviceId(nsId); |
| itemBuilder.setPath(path); |
| RemoteLocationProto item = itemBuilder.build(); |
| builder.addDestinations(item); |
| return true; |
| } |
| |
| @Override |
| public void setDateModified(long time) { |
| this.translator.getBuilder().setDateModified(time); |
| } |
| |
| @Override |
| public long getDateModified() { |
| return this.translator.getProtoOrBuilder().getDateModified(); |
| } |
| |
| @Override |
| public void setDateCreated(long time) { |
| this.translator.getBuilder().setDateCreated(time); |
| } |
| |
| @Override |
| public long getDateCreated() { |
| return this.translator.getProtoOrBuilder().getDateCreated(); |
| } |
| |
| @Override |
| public boolean isReadOnly() { |
| MountTableRecordProtoOrBuilder proto = this.translator.getProtoOrBuilder(); |
| if (!proto.hasReadOnly()) { |
| return false; |
| } |
| return proto.getReadOnly(); |
| } |
| |
| @Override |
| public void setReadOnly(boolean ro) { |
| this.translator.getBuilder().setReadOnly(ro); |
| } |
| |
| @Override |
| public DestinationOrder getDestOrder() { |
| MountTableRecordProtoOrBuilder proto = this.translator.getProtoOrBuilder(); |
| return convert(proto.getDestOrder()); |
| } |
| |
| @Override |
| public void setDestOrder(DestinationOrder order) { |
| Builder builder = this.translator.getBuilder(); |
| if (order == null) { |
| builder.clearDestOrder(); |
| } else { |
| builder.setDestOrder(convert(order)); |
| } |
| } |
| |
| private DestinationOrder convert(DestOrder order) { |
| switch (order) { |
| case LOCAL: |
| return DestinationOrder.LOCAL; |
| case RANDOM: |
| return DestinationOrder.RANDOM; |
| default: |
| return DestinationOrder.HASH; |
| } |
| } |
| |
| private DestOrder convert(DestinationOrder order) { |
| switch (order) { |
| case LOCAL: |
| return DestOrder.LOCAL; |
| case RANDOM: |
| return DestOrder.RANDOM; |
| default: |
| return DestOrder.HASH; |
| } |
| } |
| } |