/// <summary>
/// get the entry specified by the key
/// </summary>
/// <param name="key">key name of entry</param>
/// <returns>entry specified by key</returns>
public object Get(string key)
{
// use PURL for easier extraction of parts
PURL url = new PURL(key);
// test if url is complex
if (url.IsComplex())
{
// test first part of url
string first = url.GetFirstPart();
if (!properties.Contains(first))
{
return(null);
}
// if ok advance to rest of url
PropertySet child = (PropertySet)properties[first];
return(child.Get(url.GetWithoutFirstPart()));
}
if (objects.Contains(key))
{
return(objects[key]);
}
if (properties.Contains(key))
{
return(properties[key]);
}
return(null);
}
/// <summary>
/// set the entry specififed by the key
/// </summary>
/// <param name="key">key name of entry</param>
/// <param name="obj">entry to set</param>
public void Set(string key, object obj)
{
// use PURL for easier extraction of parts
PURL url = new PURL(key);
// test if url is complex
if (url.IsComplex())
{
// test first part of url
string first = url.GetFirstPart();
if (!properties.Contains(first))
{
properties.Add(first, new PropertySet(first));
}
// if ok advance to rest of url
PropertySet child = (PropertySet)properties[first];
child.Set(url.GetWithoutFirstPart(), obj);
return;
}
if (obj is PropertySet)
{
properties[key] = obj;
}
else
{
objects[key] = obj;
}
}
/// <summary>
/// remove a certain entry
/// </summary>
/// <param name="key">key name of entry</param>
public void Remove(string key)
{
// use PURL for easier extraction of parts
PURL url = new PURL(key);
// test if url is complex
if (url.IsComplex())
{
// test first part of url
string first = url.GetFirstPart();
if (!properties.Contains(first))
{
return;
}
// if ok advance to rest of url
PropertySet child = (PropertySet)properties[first];
child.Remove(url.GetWithoutFirstPart());
// if branch is empty => delete
if (child.IsEmpty())
{
properties.Remove(first);
}
return;
}
// remove
if (objects.Contains(key))
{
objects.Remove(key);
}
if (properties.Contains(key))
{
properties.Remove(key);
}
}
/// <summary>
/// test if PropertySet contains a certain entry (object or PropertySet)
/// </summary>
/// <param name="key">key name of entry</param>
/// <returns>true if entry is contained</returns>
public bool Contains(string key)
{
// use PURL for easier extraction of parts
PURL url = new PURL(key);
// test if url is complex
if (url.IsComplex())
{
// test first part
string first = url.GetFirstPart();
if (!properties.Contains(first))
{
return(false);
}
// if ok test rest of url
PropertySet child = (PropertySet)properties[first];
return(child.Contains(url.GetWithoutFirstPart()));
}
// test if key is contained in properties or objects
return(properties.Contains(key) || objects.Contains(key));
}
