| /** |
| * 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.distributedlog.service.utils; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| |
| /** |
| * Utils that used by servers. |
| */ |
| public class ServerUtils { |
| |
| /** |
| * Retrieve the ledger allocator pool name. |
| * |
| * @param serverRegionId region id that that server is running |
| * @param shardId shard id of the server |
| * @param useHostname whether to use hostname as the ledger allocator pool name |
| * @return ledger allocator pool name |
| * @throws IOException |
| */ |
| public static String getLedgerAllocatorPoolName(int serverRegionId, |
| int shardId, |
| boolean useHostname) |
| throws IOException { |
| if (useHostname) { |
| return String.format("allocator_%04d_%s", serverRegionId, |
| InetAddress.getLocalHost().getHostAddress()); |
| } else { |
| return String.format("allocator_%04d_%010d", serverRegionId, shardId); |
| } |
| } |
| |
| } |