| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.hdds.freon; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.hdds.protocol.proto.HddsProtos.DatanodeDetailsProto; |
| import org.apache.hadoop.hdds.protocol.proto.HddsProtos.Node; |
| import org.apache.hadoop.hdds.protocol.proto.HddsProtos.NodeState; |
| import org.apache.hadoop.hdds.protocol.proto.StorageContainerLocationProtocolProtos.NodeQueryResponseProto; |
| import org.apache.hadoop.hdds.protocol.proto.StorageContainerLocationProtocolProtos.NodeQueryResponseProto.Builder; |
| import org.apache.hadoop.hdds.protocol.proto.StorageContainerLocationProtocolProtos.ScmContainerLocationRequest; |
| import org.apache.hadoop.hdds.protocol.proto.StorageContainerLocationProtocolProtos.ScmContainerLocationResponse; |
| import org.apache.hadoop.hdds.protocol.proto.StorageContainerLocationProtocolProtos.ScmContainerLocationResponse.Status; |
| import org.apache.hadoop.hdds.protocol.proto.StorageContainerLocationProtocolProtos.Type; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Fake SCM client to return a simulated block location. |
| */ |
| public final class FakeScmContainerLocationProtocolClient { |
| |
| private static final Logger LOGGER = |
| LoggerFactory.getLogger(FakeScmContainerLocationProtocolClient.class); |
| |
| private FakeScmContainerLocationProtocolClient() { |
| } |
| |
| public static ScmContainerLocationResponse submitRequest( |
| ScmContainerLocationRequest req) |
| throws IOException { |
| try { |
| if (req.getCmdType() == Type.QueryNode) { |
| Builder builder = NodeQueryResponseProto.newBuilder(); |
| for (DatanodeDetailsProto datanode : FakeClusterTopology.INSTANCE |
| .getAllDatanodes()) { |
| builder.addDatanodes(Node.newBuilder() |
| .setNodeID(datanode) |
| .addNodeStates(NodeState.HEALTHY) |
| .build()); |
| } |
| |
| return ScmContainerLocationResponse.newBuilder() |
| .setCmdType(Type.QueryNode) |
| .setStatus(Status.OK) |
| .setNodeQueryResponse(builder.build()) |
| .build(); |
| } else { |
| throw new IllegalArgumentException( |
| "Unsupported request. Fake answer is not implemented for " + req |
| .getCmdType()); |
| } |
| } catch (Exception ex) { |
| LOGGER.error("Error on creating fake SCM response", ex); |
| return null; |
| } |
| } |
| |
| } |