/* ====================================================================
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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.Generic;
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using System.Collections;
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using System.IO;
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using HH.WMS.Utils.NPOI.POIFS.Common;
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using HH.WMS.Utils.NPOI.POIFS.FileSystem;
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using HH.WMS.Utils.NPOI.POIFS.Storage;
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using HH.WMS.Utils.NPOI.POIFS.NIO;
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using HH.WMS.Utils.NPOI.Util;
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namespace HH.WMS.Utils.NPOI.POIFS.Properties
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{
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public class NPropertyTable : PropertyTableBase
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{
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private POIFSBigBlockSize _bigBigBlockSize;
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public NPropertyTable(HeaderBlock headerBlock) : base(headerBlock)
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{
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_bigBigBlockSize = headerBlock.BigBlockSize;
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}
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public NPropertyTable(HeaderBlock headerBlock, NPOIFSFileSystem fileSystem)
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:base(headerBlock,
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BuildProperties( (new NPOIFSStream(fileSystem, headerBlock.PropertyStart)).GetEnumerator(),headerBlock.BigBlockSize)
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)
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{
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_bigBigBlockSize = headerBlock.BigBlockSize;
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}
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// private static List<Property> BuildProperties(IEnumerator<byte[]> dataSource, POIFSBigBlockSize bigBlockSize)
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private static List<Property> BuildProperties(IEnumerator<ByteBuffer> dataSource, POIFSBigBlockSize bigBlockSize)
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{
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try
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{
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List<Property> properties = new List<Property>();
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while(dataSource.MoveNext())
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{
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ByteBuffer bb = dataSource.Current;
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//byte[] bb = (byte[])dataSource.Current;
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// Turn it into an array
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byte[] data;
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if (bb.HasBuffer && bb.Offset == 0 &&
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bb.Buffer.Length == bigBlockSize.GetBigBlockSize())
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{
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data = bb.Buffer;
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}
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else
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{
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data = new byte[bigBlockSize.GetBigBlockSize()];
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//bb.get(data, 0, data.length);
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bb.Read(data, 0, data.Length);
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}
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//}
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//data = new byte[bigBlockSize.GetBigBlockSize()];
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//System.Array.Copy(bb, data, bb.Length);
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PropertyFactory.ConvertToProperties(data, properties);
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}
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return properties;
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}
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catch(System.IO.IOException ex)
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{
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throw ex;
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}
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}
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public override int CountBlocks
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{
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get
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{
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int size = _properties.Count * POIFSConstants.PROPERTY_SIZE;
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return (int)Math.Ceiling(1.0*size/_bigBigBlockSize.GetBigBlockSize());
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}
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}
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public void Write(NPOIFSStream stream)
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{
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try
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{
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//Leon ByteArrayOutputStream -->MemoryStream
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MemoryStream ms = new MemoryStream();
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foreach(Property property in _properties)
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{
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if(property != null)
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property.WriteData(ms);
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}
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stream.UpdateContents(ms.ToArray());
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// Update the start position if needed
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if(StartBlock != stream.GetStartBlock())
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{
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StartBlock = stream.GetStartBlock();
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}
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}
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catch(System.IO.IOException ex)
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{
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throw ex;
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}
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}
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}
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}
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