com.huaweicloud.nacos.config.manager.NacosConfigServiceStandbyManager Maven / Gradle / Ivy

Go to download
/*

 * Copyright (C) 2020-2024 Huawei Technologies Co., Ltd. All rights reserved.

 * 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.
 */

package com.huaweicloud.nacos.config.manager;

import java.util.Objects;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.alibaba.cloud.nacos.NacosConfigProperties;
import com.alibaba.cloud.nacos.diagnostics.analyzer.NacosConnectionFailureException;
import com.alibaba.nacos.api.NacosFactory;
import com.alibaba.nacos.api.config.ConfigService;

public class NacosConfigServiceStandbyManager implements NacosConfigManager {
  private static final Logger LOGGER = LoggerFactory.getLogger(NacosConfigServiceStandbyManager.class);

  private final NacosConfigProperties properties;

  private volatile ConfigService configService;

  public NacosConfigServiceStandbyManager(NacosConfigProperties properties) {
    this.properties = properties;
  }

  @Override
  public ConfigService getConfigService() {
    if (Objects.isNull(configService)) {
      synchronized (NacosConfigServiceMasterManager.class) {
        if (Objects.isNull(configService)) {
          try {
            configService = NacosFactory.createConfigService(properties.assembleStandbyNacosServerProperties());
          } catch (Exception e) {
            LOGGER.error("build nacosConfigServiceStandby failed.", e);
            throw new NacosConnectionFailureException(properties.getStandbyServerAddr(), e.getMessage(), e);
          }
        }
      }
    }
    return configService;
  }

  @Override
  public String getServerAddr() {
    return properties.getStandbyServerAddr();
  }

  @Override
  public boolean checkServerConnect() {
    return ConfigServiceManagerUtils.checkServerConnect(properties.getStandbyServerAddr());
  }

  @Override
  public void resetConfigService() {
    this.configService = null;
  }

  @Override
  public int getOrder() {
    return properties.getOrder() + 10;
  }
}