/// <summary>
/// Retrieve the string value for a given ulong
/// key.
/// </summary>
/// <param name="key">The key whose value should be returned.</param>
/// <returns>The string value for the given key, or an empty string if not found.</returns>
public string FindKey(ulong key)
{
// determine the owning node for the key
ChordNode owningNode = ChordServer.CallFindSuccessor(key);
if (owningNode != ChordServer.LocalNode)
{
// if this is not the owning node, call
// FindKey on the remote owning node
return(ChordServer.CallFindKey(owningNode, key));
}
else
{
// if this is the owning node, check
// to see if the key exists in the data store
if (this.m_DataStore.ContainsKey(key))
{
// if the key exists, return the value
return(this.m_DataStore[key]);
}
else
{
// if the key does not exist, return empty string
return(string.Empty);
}
}
}
