/**
* Constructor for an existing Document
*/
public NPOIFSDocument(DocumentProperty property, NPOIFSFileSystem filesystem)
{
this._property = property;
this._filesystem = filesystem;
if (property.Size < POIFSConstants.BIG_BLOCK_MINIMUM_DOCUMENT_SIZE)
{
_stream = new NPOIFSStream(_filesystem.GetMiniStore(), property.StartBlock);
_block_size = _filesystem.GetMiniStore().GetBlockStoreBlockSize();
}
else
{
_stream = new NPOIFSStream(_filesystem, property.StartBlock);
_block_size = _filesystem.GetBlockStoreBlockSize();
}
}
/**
* Constructor for a new Document
*
* @param name the name of the POIFSDocument
* @param stream the InputStream we read data from
*/
public NPOIFSDocument(String name, NPOIFSFileSystem filesystem, Stream stream)
{
this._filesystem = filesystem;
// Buffer the contents into memory. This is a bit icky...
// TODO Replace with a buffer up to the mini stream size, then streaming write
byte[] contents;
if (stream is MemoryStream)
{
MemoryStream bais = (MemoryStream)stream;
contents = new byte[bais.Length];
bais.Read(contents, 0, contents.Length);
}
else
{
MemoryStream baos = new MemoryStream();
IOUtils.Copy(stream, baos);
contents = baos.ToArray();
}
// Do we need to store as a mini stream or a full one?
if (contents.Length <= POIFSConstants.BIG_BLOCK_MINIMUM_DOCUMENT_SIZE)
{
_stream = new NPOIFSStream(filesystem.GetMiniStore());
_block_size = _filesystem.GetMiniStore().GetBlockStoreBlockSize();
}
else
{
_stream = new NPOIFSStream(filesystem);
_block_size = _filesystem.GetBlockStoreBlockSize();
}
// Store it
_stream.UpdateContents(contents);
// And build the property for it
this._property = new DocumentProperty(name, contents.Length);
_property.StartBlock = _stream.GetStartBlock();
}