103 lines
3.0 KiB
C#
103 lines
3.0 KiB
C#
//
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// System.Xml.XmlNameEntryCache.cs
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//
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// Authors:
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// Atsushi Enomoto <atsushi@ximian.com>
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//
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// (C) 2005 Novell, Inc.
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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namespace System.Xml
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{
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internal class XmlNameEntryCache
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{
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Hashtable table = new Hashtable ();
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XmlNameTable nameTable;
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XmlNameEntry dummy = new XmlNameEntry (String.Empty, String.Empty, String.Empty);
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char [] cacheBuffer;
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public XmlNameEntryCache (XmlNameTable nameTable)
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{
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this.nameTable = nameTable;
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}
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public string GetAtomizedPrefixedName (string prefix, string local)
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{
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if (prefix == null || prefix.Length == 0)
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return local;
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if (cacheBuffer == null)
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cacheBuffer = new char [20];
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if (cacheBuffer.Length < prefix.Length + local.Length + 1)
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cacheBuffer = new char [Math.Max (
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prefix.Length + local.Length + 1,
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cacheBuffer.Length << 1)];
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prefix.CopyTo (0, cacheBuffer, 0, prefix.Length);
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cacheBuffer [prefix.Length] = ':';
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local.CopyTo (0, cacheBuffer, prefix.Length + 1, local.Length);
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return nameTable.Add (cacheBuffer, 0, prefix.Length + local.Length + 1);
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}
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public XmlNameEntry Add (string prefix, string local, string ns,
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bool atomic)
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{
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if (!atomic) {
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prefix = nameTable.Add (prefix);
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local = nameTable.Add (local);
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ns = nameTable.Add (ns);
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}
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XmlNameEntry e = GetInternal (prefix, local, ns, true);
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if (e == null) {
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e = new XmlNameEntry (prefix, local, ns);
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table [e] = e;
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}
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return e;
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}
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public XmlNameEntry Get (string prefix, string local, string ns,
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bool atomic)
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{
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XmlNameEntry e = GetInternal (prefix, local, ns, atomic);
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return e;
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}
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private XmlNameEntry GetInternal (string prefix, string local,
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string ns, bool atomic)
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{
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if (!atomic) {
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if (nameTable.Get (prefix) == null ||
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nameTable.Get (local) == null ||
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nameTable.Get (ns) == null)
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return null;
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}
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dummy.Update (prefix, local, ns);
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return table [dummy] as XmlNameEntry;
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}
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}
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}
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