fix #2768

[nobodyiam]

fix #2768 that the namespace length is mis-calculated for private namespaces and public namespaces which don't need to append prefix

[codecov-io]

Codecov Report

Merging #2784 into master will increase coverage by 8.7%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             master    #2784     +/-   ##
===========================================
+ Coverage     50.48%   59.18%   +8.7%     
+ Complexity     2084     1200    -884     
===========================================
  Files           413      196    -217     
  Lines         12666     5951   -6715     
  Branches       1294      636    -658     
===========================================
- Hits           6394     3522   -2872     
+ Misses         5819     2162   -3657     
+ Partials        453      267    -186

Impacted Files	Coverage Δ	Complexity Δ
.../portal/spi/configuration/LdapGroupProperties.java
...ework/apollo/portal/controller/ItemController.java
...o/configservice/wrapper/DeferredResultWrapper.java
...omponent/emailbuilder/GrayPublishEmailBuilder.java
...k/apollo/portal/controller/FavoriteController.java
...apollo/portal/entity/vo/AppRolesAssignedUsers.java
...nfigservice/ConfigServerEurekaServerConfigure.java
...ponent/emailbuilder/NormalPublishEmailBuilder.java
.../framework/apollo/portal/entity/vo/SystemInfo.java
...rk/apollo/portal/service/NamespaceLockService.java
... and 207 more

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[coveralls]

Coverage remained the same at 54.058% when pulling aa74675 on nobodyiam:fix-2768 into 232ebeb on ctripcorp:master.