dramatically improve the apollo client unit test performance

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/ConfigServiceLocator.java

@@ -131,7 +131,7 @@ public class ConfigServiceLocator implements Initializable {
       }
 
       try {
-        TimeUnit.SECONDS.sleep(1);
+        m_configUtil.getOnErrorRetryIntervalTimeUnit().sleep(m_configUtil.getOnErrorRetryInterval());
       } catch (InterruptedException ex) {
         //ignore
       }

apollo-client/src/main/java/com/ctrip/framework/apollo/internals/RemoteConfigRepository.java

@@ -228,7 +228,7 @@ public class RemoteConfigRepository extends AbstractConfigRepository {
       }
 
       try {
-        TimeUnit.SECONDS.sleep(1);
+        m_configUtil.getOnErrorRetryIntervalTimeUnit().sleep(m_configUtil.getOnErrorRetryInterval());
       } catch (InterruptedException ex) {
         //ignore
       }

apollo-client/src/main/java/com/ctrip/framework/apollo/util/ConfigUtil.java

@@ -29,6 +29,9 @@ public class ConfigUtil {
   private String cluster;
   private int loadConfigQPS = 2; //2 times per second
   private int longPollQPS = 2; //2 times per second
+  //for on error retry
+  private long onErrorRetryInterval = 1;//1 second
+  private TimeUnit onErrorRetryIntervalTimeUnit = TimeUnit.SECONDS;//1 second
   //for typed config cache of parser result, e.g. integer, double, long, etc.
   private long maxConfigCacheSize = 500;//500 cache key
   private long configCacheExpireTime = 1;//1 minute
@@ -212,6 +215,14 @@ public class ConfigUtil {
     return longPollQPS;
   }
 
+  public long getOnErrorRetryInterval() {
+    return onErrorRetryInterval;
+  }
+
+  public TimeUnit getOnErrorRetryIntervalTimeUnit() {
+    return onErrorRetryIntervalTimeUnit;
+  }
+
   public String getDefaultLocalCacheDir() {
     String cacheRoot = isOSWindows() ? "C:\\opt\\data\\%s" : "/opt/data/%s";
     return String.format(cacheRoot, getAppId());

apollo-client/src/test/java/com/ctrip/framework/apollo/BaseIntegrationTest.java

@@ -182,6 +182,16 @@ public abstract class BaseIntegrationTest extends ComponentTestCase {
     public String getDefaultLocalCacheDir() {
       return ClassLoaderUtil.getClassPath();
     }
+
+    @Override
+    public long getOnErrorRetryInterval() {
+      return 10;
+    }
+
+    @Override
+    public TimeUnit getOnErrorRetryIntervalTimeUnit() {
+      return TimeUnit.MILLISECONDS;
+    }
   }
 
   /**

apollo-client/src/test/java/com/ctrip/framework/apollo/internals/RemoteConfigRepositoryTest.java

@@ -233,6 +233,16 @@ public class RemoteConfigRepositoryTest extends ComponentTestCase {
     public int getLongPollQPS() {
       return 200;
     }
+
+    @Override
+    public long getOnErrorRetryInterval() {
+      return 10;
+    }
+
+    @Override
+    public TimeUnit getOnErrorRetryIntervalTimeUnit() {
+      return TimeUnit.MILLISECONDS;
+    }
   }
 
   public static class MockConfigServiceLocator extends ConfigServiceLocator {