package com.ctrip.apollo.util;

 import com.google.common.base.Preconditions;

 import com.ctrip.apollo.core.ConfigConsts;

 import com.ctrip.apollo.core.MetaDomainConsts;

 import com.ctrip.apollo.core.enums.Env;

 import com.ctrip.apollo.core.enums.EnvUtils;

 import com.ctrip.framework.foundation.Foundation;

 import org.unidal.lookup.annotation.Named;

 import java.util.concurrent.TimeUnit;

 /**

  * @author Jason Song(song_s@ctrip.com)

  */

 @Named(type = ConfigUtil.class)

 public class ConfigUtil {

   //TODO read from config?

   private static final int refreshInterval = 5;

   private static final TimeUnit refreshIntervalTimeUnit = TimeUnit.MINUTES;

   private static final int connectTimeout = 5000; //5 seconds

   private static final int readTimeout = 10000; //10 seconds

   /**

    * Get the app id for the current application.

    * @return the app id

    * @throws IllegalStateException if app id is not set

    */

   public String getAppId() {

     String appId = Foundation.app().getAppId();

     Preconditions.checkState(appId != null, "app.id is not set");

     return appId;

   }

   /**

    * Get the data center info for the current application.

    * @return the current data center, null if there is no such info.

    */

   public String getDataCenter() {

     return Foundation.server().getDataCenter();

   }

   /**

    * Get the cluster name for the current application.

    * @return the cluster name, or "default" if not specified

    */

   public String getCluster() {

     String cluster = System.getProperty("apollo.cluster");

     if (cluster == null) {

       cluster = ConfigConsts.CLUSTER_NAME_DEFAULT;

     }

     return cluster;

   }

   /**

    * Get the current environment.

    * @return the env

    * @throws IllegalStateException if env is set

    */

   public Env getApolloEnv() {

     Env env = EnvUtils.transformEnv(Foundation.server().getEnvType());

     Preconditions.checkState(env != null, "env is not set");

     return env;

   }

   public String getMetaServerDomainName() {

     return MetaDomainConsts.getDomain(getApolloEnv());

   }

   public int getConnectTimeout() {

     return connectTimeout;

   }

   public int getReadTimeout() {

     return readTimeout;

   }

   public int getRefreshInterval() {

     return refreshInterval;

   }

   public TimeUnit getRefreshTimeUnit() {

     return refreshIntervalTimeUnit;

   }

 }