org.apache.linkis.instance.label.cache.InsLabelCacheConfiguration Maven / Gradle / Ivy

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/*
 * 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.linkis.instance.label.cache;

import org.apache.linkis.instance.label.conf.InsLabelConf;

import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.caffeine.CaffeineCacheManager;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;

import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.concurrent.TimeUnit;

import com.github.benmanes.caffeine.cache.Caffeine;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/** Use spring cache and caffeine */
@ConditionalOnClass(Caffeine.class)
@EnableCaching
@Configuration
public class InsLabelCacheConfiguration extends CachingConfigurerSupport {
  private static final Logger LOG = LoggerFactory.getLogger(InsLabelCacheConfiguration.class);

  @Bean
  @Primary
  @Override
  public CacheManager cacheManager() {
    CaffeineCacheManager cacheManager = new CaffeineCacheManager();
    cacheManager.setCaffeine(
        Caffeine.newBuilder()
            .expireAfterWrite(InsLabelConf.CACHE_EXPIRE_TIME.getValue(), TimeUnit.SECONDS)
            .maximumSize(InsLabelConf.CACHE_MAX_SIZE.getValue()));
    cacheManager.setCacheNames(Arrays.asList(InsLabelConf.CACHE_NAMES.getValue().split(",")));
    return cacheManager;
  }

  @Bean
  @Primary
  @Override
  public KeyGenerator keyGenerator() {
    return new KeyGenerator() {
      static final String SPLIT_SYMBOL = ":";
      final Logger LOG = LoggerFactory.getLogger(KeyGenerator.class);

      @Override
      public Object generate(Object target, Method method, Object... params) {
        StringBuilder keyBuilder =
            new StringBuilder()
                .append(target.getClass().getSimpleName())
                .append(SPLIT_SYMBOL)
                .append(method.getName());
        if (params.length > 0) {
          keyBuilder.append(SPLIT_SYMBOL);
          for (int i = 0; i < params.length; i++) {
            // For label toString() is all right
            keyBuilder.append(params[i]);
            if (i < params.length - 1) {
              keyBuilder.append(SPLIT_SYMBOL);
            }
          }
        }
        LOG.trace("Generate key: [" + keyBuilder.toString() + "]");
        return keyBuilder.toString();
      }
    };
  }
}