public bool KeyExists(object key, string group, string subGroup)
{
group = DoTrimming(group);
subGroup = DoTrimming(subGroup);
if (GroupExists(group))
{
GroupInfoEntry entry = (GroupInfoEntry)_groups[group];
return(entry.KeyExists(key, subGroup));
}
return(false);
}
/// <summary>
/// Add group information to the index
/// </summary>
/// <param name="key"></param>
/// <param name="grpInfo"></param>
public void AddToGroup(object key, GroupInfo grpInfo)
{
if (grpInfo == null)
{
return;
}
string group = grpInfo.Group;
string subGroup = grpInfo.SubGroup;
if (group == null)
{
return;
}
group = DoTrimming(group);
if (subGroup != null)
{
subGroup = DoTrimming(subGroup);
}
lock (_groups.SyncRoot)
{
long prevSize = 0, currentSize = 0;
if (_groups.Contains(group))
{
GroupInfoEntry entry = (GroupInfoEntry)_groups[group];
prevSize = entry.IndexInMemorySize;
entry.AddToSubGroup(key, subGroup);
currentSize = entry.IndexInMemorySize;
}
else
{
GroupInfoEntry entry = new GroupInfoEntry();
entry.AddToSubGroup(key, subGroup);
_groups[group] = entry;
currentSize = entry.IndexInMemorySize;
}
ModifyGroupIndexSize(currentSize - prevSize);
}
}
/// <summary>
/// returns the shallow copy of the group
/// </summary>
/// <param name="group"></param>
/// <param name="subGroup"></param>
/// <returns></returns>
public IDictionary GetGroup(string group, string subGroup)
{
if (group == null)
{
return(null);
}
lock (_groups.SyncRoot)
{
group = DoTrimming(group);
if (_groups.Contains(group))
{
GroupInfoEntry entry = (GroupInfoEntry)_groups[group];
return(entry.GetSubGroups());
}
}
return(null);
}
/// <summary>
/// Return all the keys in the group. If a sub group is specified keys
/// related to that subGroup is returned only otherwise all the keys
/// included group and subgroup is returned.
/// </summary>
/// <param name="group"></param>
/// <param name="subGroup"></param>
/// <returns></returns>
public ArrayList GetGroupKeys(string group, string subGroup)
{
if (group == null)
{
return(null);
}
lock (_groups.SyncRoot)
{
group = DoTrimming(group);
subGroup = DoTrimming(subGroup);
if (_groups.Contains(group))
{
GroupInfoEntry entry = (GroupInfoEntry)_groups[group];
return(entry.GetSubGroupKeys(subGroup));
}
}
return(new ArrayList());
}
/// <summary>
/// Remove a specific key from a group or a sub group
/// </summary>
/// <param name="key"></param>
/// <param name="group"></param>
/// <param name="subGroup"></param>
public void RemoveFromGroup(object key, GroupInfo grpInfo)
{
if (grpInfo == null)
{
return;
}
string group = grpInfo.Group;
string subGroup = grpInfo.SubGroup;
if (group == null)
{
return;
}
group = DoTrimming(group);
subGroup = DoTrimming(subGroup);
lock (_groups.SyncRoot)
{
if (_groups.Contains(group))
{
GroupInfoEntry entry = (GroupInfoEntry)_groups[group];
long prevSize = entry.IndexInMemorySize;
entry.RemoveFromGroup(key, subGroup);
long currentSize = entry.IndexInMemorySize;
if (entry.SubGroupsCount == 0)
{
_groups.Remove(group);
ModifyGroupIndexSize(-prevSize); //in case the group is being removed we will removed the whole size of the group from our groupindex size
}
else
{
ModifyGroupIndexSize(currentSize - prevSize);
}
}
}
}
