/* ====================================================================
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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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/* ================================================================
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* About NPOI
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* Author: Tony Qu
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* Author's email: tonyqus (at) gmail.com
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* Author's Blog: tonyqus.wordpress.com.cn (wp.tonyqus.cn)
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* HomePage: http://www.codeplex.com/npoi
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* Contributors:
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*
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* ==============================================================*/
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using System;
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using System.Collections;
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using System.IO;
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using System.Collections.Generic;
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using HH.WMS.Utils.NPOI.POIFS.Storage;
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using HH.WMS.Utils.NPOI.POIFS.FileSystem;
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using HH.WMS.Utils.NPOI.POIFS.Common;
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namespace HH.WMS.Utils.NPOI.POIFS.Properties
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{
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public class PropertyTable : PropertyTableBase, BlockWritable
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{
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private POIFSBigBlockSize _bigBigBlockSize;
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private BlockWritable[] _blocks;
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/**
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* Default constructor
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*/
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public PropertyTable(HeaderBlock headerBlock) : base(headerBlock)
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{
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_bigBigBlockSize = headerBlock.BigBlockSize;
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_blocks = null;
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}
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/**
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* reading constructor (used when we've read in a file and we want
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* to extract the property table from it). Populates the
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* properties thoroughly
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*
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* @param startBlock the first block of the property table
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* @param blockList the list of blocks
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*
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* @exception IOException if anything goes wrong (which should be
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* a result of the input being NFG)
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*/
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public PropertyTable(HeaderBlock headerBlock,
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RawDataBlockList blockList)
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: base(headerBlock,
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PropertyFactory.ConvertToProperties( blockList.FetchBlocks(headerBlock.PropertyStart, -1) ) )
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{
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_bigBigBlockSize = headerBlock.BigBlockSize;
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_blocks = null;
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}
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/**
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* Prepare to be written Leon
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*/
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public void PreWrite()
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{
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List<Property> properties = new List<Property>(_properties.Count);
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for (int i = 0; i < _properties.Count; i++)
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properties.Add(_properties[i]);
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// give each property its index
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for (int k = 0; k < properties.Count; k++)
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{
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properties[ k ].Index = k;
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}
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// allocate the blocks for the property table
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_blocks = PropertyBlock.CreatePropertyBlockArray(_bigBigBlockSize, properties);
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// prepare each property for writing
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for (int k = 0; k < properties.Count; k++)
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{
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properties[ k ].PreWrite();
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}
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}
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/* ********** START implementation of BATManaged ********** */
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/**
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* Return the number of BigBlock's this instance uses
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*
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* @return count of BigBlock instances
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*/
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public override int CountBlocks
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{
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get { return (_blocks == null) ? 0 : _blocks.Length; }
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}
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/**
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* Write the storage to an Stream
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*
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* @param stream the Stream to which the stored data should
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* be written
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*
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* @exception IOException on problems writing to the specified
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* stream
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*/
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public void WriteBlocks(Stream stream)
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{
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if (_blocks != null)
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{
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for (int j = 0; j < _blocks.Length; j++)
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{
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_blocks[ j ].WriteBlocks(stream);
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}
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}
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}
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}
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}
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