| /******************************************************************************* |
| * Copyright 2017 General Electric Company |
| * |
| * Licensed 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. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| *******************************************************************************/ |
| |
| package com.ge.predix.acs.policy.evaluation.cache; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.beans.factory.InitializingBean; |
| import org.springframework.beans.factory.annotation.Autowired; |
| import org.springframework.beans.factory.annotation.Value; |
| import org.springframework.context.annotation.Profile; |
| import org.springframework.data.redis.RedisConnectionFailureException; |
| import org.springframework.data.redis.core.RedisTemplate; |
| import org.springframework.stereotype.Component; |
| |
| @Component |
| @Profile({ "cloud-redis", "redis" }) |
| public class RedisPolicyEvaluationCache extends AbstractPolicyEvaluationCache implements InitializingBean { |
| private static final Logger LOGGER = LoggerFactory.getLogger(RedisPolicyEvaluationCache.class); |
| |
| @Value("${CACHED_EVAL_TTL_SECONDS:600}") |
| private long cachedEvalTimeToLiveSeconds; |
| |
| @Autowired |
| private RedisTemplate<String, String> decisionCacheRedisTemplate; |
| |
| @Override |
| public void afterPropertiesSet() { |
| LOGGER.info("Starting Redis policy evaluation cache."); |
| try { |
| String pingResult = this.decisionCacheRedisTemplate.getConnectionFactory().getConnection().ping(); |
| LOGGER.info("Redis server ping: {}", pingResult); |
| } catch (RedisConnectionFailureException ex) { |
| LOGGER.error("Redis server ping failed.", ex); |
| } |
| } |
| |
| @Override |
| void delete(final String key) { |
| this.decisionCacheRedisTemplate.delete(key); |
| } |
| |
| @Override |
| void delete(final Collection<String> keys) { |
| this.decisionCacheRedisTemplate.delete(keys); |
| } |
| |
| @Override |
| void flushAll() { |
| this.decisionCacheRedisTemplate.getConnectionFactory().getConnection().flushAll(); |
| } |
| |
| @Override |
| Set<String> keys(final String key) { |
| return this.decisionCacheRedisTemplate.keys(key); |
| } |
| |
| @Override |
| List<String> multiGet(final List<String> keys) { |
| return this.decisionCacheRedisTemplate.opsForValue().multiGet(keys); |
| } |
| |
| void multiSet(final Map<String, String> map) { |
| this.decisionCacheRedisTemplate.opsForValue().multiSet(map); |
| } |
| |
| @Override |
| void set(final String key, final String value) { |
| if (isPolicyEvalResultKey(key)) { |
| this.decisionCacheRedisTemplate.opsForValue().set(key, value, this.cachedEvalTimeToLiveSeconds, |
| TimeUnit.SECONDS); |
| } else { |
| this.decisionCacheRedisTemplate.opsForValue().set(key, value); |
| } |
| } |
| |
| public void setCachedEvalTimeToLiveSeconds(final long cachedEvalTimeToLiveSeconds) { |
| this.cachedEvalTimeToLiveSeconds = cachedEvalTimeToLiveSeconds; |
| } |
| |
| void setIfNotExists(final String key, final String value) { |
| this.decisionCacheRedisTemplate.boundValueOps(key).setIfAbsent(value); |
| } |
| } |