public void Write(Stream stream)
{
FlushSheets();
//Save the template
var tmplFile = TempFile.CreateTempFile("poi-sxssf-template", ".xlsx");
try
{
var os = new FileStream(tmplFile.FullName, FileMode.Open, FileAccess.ReadWrite);
try
{
XssfWorkbook.Write(os);
}
finally
{
os.Close();
}
//Substitute the template entries with the generated sheet data files
ZipEntrySource source = new ZipFileZipEntrySource(new ZipFile(tmplFile.FullName));
InjectData(source, stream);
}
finally
{
tmplFile.Delete();
if (File.Exists(tmplFile.FullName))
{
throw new IOException("Could not delete temporary file after processing: " + tmplFile);
}
}
}
/**
* Constructor. Opens a Zip based Open XML document.
*
* @param file
* The file to open or create.
* @param access
* The package access mode.
*/
public ZipPackage(FileInfo file, PackageAccess access)
: base(access)
{
ZipEntrySource ze;
try
{
ZipFile zipFile = ZipHelper.OpenZipFile(file);
ze = new ZipFileZipEntrySource(zipFile);
}
catch (IOException e)
{
// probably not happening with write access - not sure how to handle the default read-write access ...
if (access == PackageAccess.WRITE)
{
throw new InvalidOperationException("Can't open the specified file: '" + file + "'", e);
}
logger.Log(POILogger.ERROR, "Error in zip file " + file + " - falling back to stream processing (i.e. ignoring zip central directory)");
// some zips can't be opened via ZipFile in JDK6, as the central directory
// contains either non-latin entries or the compression type can't be handled
// the workaround is to iterate over the stream and not the directory
FileStream fis = null;
//ThresholdInputStream zis = null;
ZipInputStream zis = null;
try
{
fis = file.Create();
// TODO: ZipSecureFile
// zis = ZipHelper.OpenZipStream(fis);
zis = ZipHelper.OpenZipStream(fis);
ze = new ZipInputStreamZipEntrySource(zis);
}
catch (IOException e2)
{
if (zis != null)
{
try
{
zis.Close();
}
catch (IOException)
{
throw new InvalidOperationException("Can't open the specified file: '" + file + "'" +
" and couldn't close the file input stream", e);
}
}
else if (fis != null)
{
try
{
fis.Close();
}
catch (IOException)
{
throw new InvalidOperationException("Can't open the specified file: '" + file + "'" +
" and couldn't close the file input stream", e);
}
}
throw new InvalidOperationException("Can't open the specified file: '" + file + "'", e2);
}
}
this.zipArchive = ze;
}
