content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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.alibaba.nacos.client.utils;
  
  import com.alibaba.nacos.client.env.NacosClientProperties;
  import com.alibaba.nacos.common.utils.MD5Utils;
  import com.alibaba.nacos.common.utils.StringUtils;
  import org.slf4j.Logger;
  
  /**
   * manage param tool.
   *
   * @author nacos
   */
  public class ParamUtil {
      
      private static final Logger LOGGER = LogUtils.logger(ParamUtil.class);
      
      private static int connectTimeout;
      
      private static int readTimeout;
      
      private static double perTaskConfigSize;
      
      private static final String NACOS_CONNECT_TIMEOUT_KEY = "NACOS.CONNECT.TIMEOUT";
      
      private static final String NACOS_READ_TIMEOUT_KEY = "NACOS.READ.TIMEOUT";
      
      private static final String DEFAULT_NACOS_CONNECT_TIMEOUT = "1000";
      
      private static final String DEFAULT_NACOS_READ_TIMEOUT = "3000";
      
      private static final String PER_TASK_CONFIG_SIZE_KEY = "PER_TASK_CONFIG_SIZE";
      
      private static final String DEFAULT_PER_TASK_CONFIG_SIZE_KEY = "3000";
      
      static {
          // Client identity information
          connectTimeout = initConnectionTimeout();
          LOGGER.info("[settings] [http-client] connect timeout:{}", connectTimeout);
          
          readTimeout = initReadTimeout();
          LOGGER.info("[settings] [http-client] read timeout:{}", readTimeout);
          
          perTaskConfigSize = initPerTaskConfigSize();
          LOGGER.info("PER_TASK_CONFIG_SIZE: {}", perTaskConfigSize);
      }
      
      private static int initConnectionTimeout() {
          String tmp = DEFAULT_NACOS_CONNECT_TIMEOUT;
          try {
              tmp = NacosClientProperties.PROTOTYPE.getProperty(NACOS_CONNECT_TIMEOUT_KEY, DEFAULT_NACOS_CONNECT_TIMEOUT);
              return Integer.parseInt(tmp);
          } catch (NumberFormatException e) {
              final String msg = "[http-client] invalid connect timeout:" + tmp;
              LOGGER.error("[settings] " + msg, e);
              throw new IllegalArgumentException(msg, e);
          }
      }
      
      private static int initReadTimeout() {
          String tmp = DEFAULT_NACOS_READ_TIMEOUT;
          try {
              tmp = NacosClientProperties.PROTOTYPE.getProperty(NACOS_READ_TIMEOUT_KEY, DEFAULT_NACOS_READ_TIMEOUT);
              return Integer.parseInt(tmp);
          } catch (NumberFormatException e) {
              final String msg = "[http-client] invalid read timeout:" + tmp;
              LOGGER.error("[settings] " + msg, e);
              throw new IllegalArgumentException(msg, e);
          }
      }
      
      private static double initPerTaskConfigSize() {
          try {
              return Double.parseDouble(NacosClientProperties.PROTOTYPE.getProperty(PER_TASK_CONFIG_SIZE_KEY,
                      DEFAULT_PER_TASK_CONFIG_SIZE_KEY));
          } catch (NumberFormatException e) {
              LOGGER.error("[PER_TASK_CONFIG_SIZE] PER_TASK_CONFIG_SIZE invalid", e);
              throw new IllegalArgumentException("invalid PER_TASK_CONFIG_SIZE, expected value type double", e);
          }
      }
      
      public static int getConnectTimeout() {
          return connectTimeout;
      }
      
      public static void setConnectTimeout(int connectTimeout) {
          ParamUtil.connectTimeout = connectTimeout;
      }
      
      public static int getReadTimeout() {
          return readTimeout;
      }
      
      public static void setReadTimeout(int readTimeout) {
          ParamUtil.readTimeout = readTimeout;
      }
      
      public static double getPerTaskConfigSize() {
          return perTaskConfigSize;
      }
      
      public static void setPerTaskConfigSize(double perTaskConfigSize) {
          ParamUtil.perTaskConfigSize = perTaskConfigSize;
      }
      
      public static final int MAX_ENV_NAME_LENGTH = 50;
      
      /**
       * simply env name if name is too long.
       *
       * @param envName env name.
       * @return env name.
       */
      public static String simplyEnvNameIfOverLimit(String envName) {
          if (StringUtils.isNotBlank(envName) && envName.length() > MAX_ENV_NAME_LENGTH) {
              return envName.substring(0, MAX_ENV_NAME_LENGTH) + MD5Utils.md5Hex(envName, "UTF-8");
          }
          return envName;
      }
      
  }
  