001/* 002 * (C) Copyright 2013 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Florent Guillaume 018 */ 019package org.nuxeo.ecm.core.redis; 020 021import org.apache.commons.lang.StringUtils; 022import org.apache.commons.logging.Log; 023import org.apache.commons.logging.LogFactory; 024import org.nuxeo.common.xmap.annotation.XNode; 025import org.nuxeo.common.xmap.annotation.XObject; 026import org.nuxeo.ecm.core.api.NuxeoException; 027import redis.clients.jedis.Jedis; 028import redis.clients.jedis.JedisPool; 029import redis.clients.jedis.JedisPoolConfig; 030import redis.clients.jedis.Protocol; 031import redis.clients.jedis.exceptions.JedisException; 032 033/** 034 * Descriptor for a Redis configuration. 035 * 036 * @since 5.8 037 */ 038@XObject("server") 039public class RedisServerDescriptor extends RedisPoolDescriptor { 040 041 private static final Log log = LogFactory.getLog(RedisServerDescriptor.class); 042 043 @XNode("host") 044 public String host; 045 046 @XNode("port") 047 public int port = Protocol.DEFAULT_PORT; 048 049 @XNode("failoverTimeout") 050 public int failoverTimeout = 300; 051 052 protected boolean canConnect(String name, int port) { 053 try (Jedis jedis = new Jedis(name, port)) { 054 if (StringUtils.isNotBlank(password)) { 055 jedis.auth(password); 056 } 057 return canPing(jedis); 058 } 059 } 060 061 protected boolean canPing(Jedis jedis) { 062 try { 063 String pong = jedis.ping(); 064 return "PONG".equals(pong); 065 } catch (JedisException cause) { 066 log.debug("Exception during ping", cause); 067 return false; 068 } 069 } 070 071 @Override 072 public RedisExecutor newExecutor() { 073 if (!canConnect(host, port)) { 074 throw new NuxeoException("Cannot connect to Redis host: " + host + ":" + port); 075 } 076 JedisPoolConfig conf = new JedisPoolConfig(); 077 conf.setMaxTotal(maxTotal); 078 conf.setMaxIdle(maxIdle); 079 RedisExecutor base = new RedisPoolExecutor(new JedisPool(conf, host, port, timeout, 080 StringUtils.defaultIfBlank(password, null), database)); 081 return new RedisFailoverExecutor(failoverTimeout, base); 082 } 083 084}