/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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using System;
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using System.Collections;
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using System.Text;
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using HH.WMS.Utils.NPOI.POIFS.FileSystem;
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using HH.WMS.Utils.NPOI.POIFS.Properties;
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using HH.WMS.Utils.NPOI.POIFS.Dev;
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namespace HH.WMS.Utils.NPOI.POIFS.FileSystem
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{
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/// <summary>
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/// Simple implementation of DocumentEntry
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/// @author Marc Johnson (mjohnson at apache dot org)
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/// </summary>
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public class DocumentNode : EntryNode, POIFSViewable, DocumentEntry
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{
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// underlying POIFSDocument instance
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private POIFSDocument _document;
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/**
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* create a DocumentNode. This method Is not public by design; it
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* Is intended strictly for the internal use of this package
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*
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* @param property the DocumentProperty for this DocumentEntry
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* @param parent the parent of this entry
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*/
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public DocumentNode(DocumentProperty property, DirectoryNode parent):base(property, parent)
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{
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_document = property.Document;
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}
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/**
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* get the POIFSDocument
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*
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* @return the internal POIFSDocument
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*/
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public POIFSDocument Document
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{
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get { return _document; }
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}
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/**
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* get the zize of the document, in bytes
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*
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* @return size in bytes
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*/
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public int Size
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{
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get { return Property.Size; }
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}
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/**
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* Is this a DocumentEntry?
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*
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* @return true if the Entry Is a DocumentEntry, else false
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*/
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public override bool IsDocumentEntry
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{
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get{return true;}
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}
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/**
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* extensions use this method to verify internal rules regarding
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* deletion of the underlying store.
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*
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* @return true if it's ok to delete the underlying store, else
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* false
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*/
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protected override bool IsDeleteOK
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{
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get { return true; }
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}
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/**
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* Get an array of objects, some of which may implement
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* POIFSViewable
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*
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* @return an array of Object; may not be null, but may be empty
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*/
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public Array ViewableArray
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{
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get { return new Object[0]; }
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}
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/**
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* Get an Iterator of objects, some of which may implement
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* POIFSViewable
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*
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* @return an Iterator; may not be null, but may have an empty
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* back end store
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*/
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public IEnumerator ViewableIterator
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{
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get
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{
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IList components = new ArrayList();
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components.Add(Property);
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components.Add(_document);
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return components.GetEnumerator();
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}
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}
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/**
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* Give viewers a hint as to whether to call getViewableArray or
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* getViewableIterator
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*
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* @return true if a viewer should call getViewableArray, false if
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* a viewer should call getViewableIterator
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*/
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public bool PreferArray
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{
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get { return false; }
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}
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/**
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* Provides a short description of the object, to be used when a
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* POIFSViewable object has not provided its contents.
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*
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* @return short description
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*/
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public String ShortDescription
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{
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get{return Name;}
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}
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}
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}
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