| /** |
| * 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.storm.utils; |
| |
| import java.io.IOException; |
| import java.net.BindException; |
| import java.net.InetSocketAddress; |
| import org.apache.storm.shade.org.apache.zookeeper.server.NIOServerCnxnFactory; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class ZookeeperServerCnxnFactory { |
| private static final Logger LOG = LoggerFactory.getLogger(ZookeeperServerCnxnFactory.class); |
| int port; |
| NIOServerCnxnFactory factory; |
| |
| public ZookeeperServerCnxnFactory(int port, int maxClientCnxns) { |
| //port range |
| int max; |
| if (port <= 0) { |
| this.port = 2000; |
| max = 65535; |
| } else { |
| this.port = port; |
| max = port; |
| } |
| |
| try { |
| factory = new NIOServerCnxnFactory(); |
| } catch (IOException e) { |
| this.port = 0; |
| factory = null; |
| e.printStackTrace(); |
| throw new RuntimeException(e.getMessage()); |
| } |
| |
| //look for available port |
| for (; this.port <= max; this.port++) { |
| try { |
| factory.configure(new InetSocketAddress(this.port), maxClientCnxns); |
| LOG.debug("Zookeeper server successfully binded at port " + this.port); |
| break; |
| } catch (BindException e1) { |
| //ignore |
| } catch (IOException e2) { |
| this.port = 0; |
| factory = null; |
| e2.printStackTrace(); |
| throw new RuntimeException(e2.getMessage()); |
| } |
| } |
| |
| if (this.port > max) { |
| this.port = 0; |
| factory = null; |
| LOG.error("Failed to find a port for Zookeeper"); |
| throw new RuntimeException("No port is available to launch an inprocess zookeeper."); |
| } |
| } |
| |
| public int port() { |
| return port; |
| } |
| |
| public NIOServerCnxnFactory factory() { |
| return factory; |
| } |
| } |