public Groups(Configuration conf, Timer timer)
{
impl = ReflectionUtils.NewInstance(conf.GetClass <GroupMappingServiceProvider>(CommonConfigurationKeys
.HadoopSecurityGroupMapping, typeof(ShellBasedUnixGroupsMapping)), conf);
cacheTimeout = conf.GetLong(CommonConfigurationKeys.HadoopSecurityGroupsCacheSecs
, CommonConfigurationKeys.HadoopSecurityGroupsCacheSecsDefault) * 1000;
negativeCacheTimeout = conf.GetLong(CommonConfigurationKeys.HadoopSecurityGroupsNegativeCacheSecs
, CommonConfigurationKeys.HadoopSecurityGroupsNegativeCacheSecsDefault) * 1000;
warningDeltaMs = conf.GetLong(CommonConfigurationKeys.HadoopSecurityGroupsCacheWarnAfterMs
, CommonConfigurationKeys.HadoopSecurityGroupsCacheWarnAfterMsDefault);
ParseStaticMapping(conf);
this.timer = timer;
this.cache = CacheBuilder.NewBuilder().RefreshAfterWrite(cacheTimeout, TimeUnit.Milliseconds
).Ticker(new Groups.TimerToTickerAdapter(timer)).ExpireAfterWrite(10 * cacheTimeout
, TimeUnit.Milliseconds).Build(new Groups.GroupCacheLoader(this));
if (negativeCacheTimeout > 0)
{
Com.Google.Common.Cache.Cache <string, bool> tempMap = CacheBuilder.NewBuilder().ExpireAfterWrite
(negativeCacheTimeout, TimeUnit.Milliseconds).Ticker(new Groups.TimerToTickerAdapter
(timer)).Build();
negativeCache = Collections.NewSetFromMap(tempMap.AsMap());
}
if (Log.IsDebugEnabled())
{
Log.Debug("Group mapping impl=" + impl.GetType().FullName + "; cacheTimeout=" + cacheTimeout
+ "; warningDeltaMs=" + warningDeltaMs);
}
}
private void AddMappingProvider(string providerName, Type providerClass)
{
Configuration newConf = PrepareConf(providerName);
GroupMappingServiceProvider provider = (GroupMappingServiceProvider)ReflectionUtils
.NewInstance(providerClass, newConf);
providersList.AddItem(provider);
}
public JniBasedUnixGroupsNetgroupMappingWithFallback()
{
if (NativeCodeLoader.IsNativeCodeLoaded())
{
this.impl = new JniBasedUnixGroupsNetgroupMapping();
}
else
{
Log.Info("Falling back to shell based");
this.impl = new ShellBasedUnixGroupsNetgroupMapping();
}
if (Log.IsDebugEnabled())
{
Log.Debug("Group mapping impl=" + impl.GetType().FullName);
}
}