https://bz.apache.org/bugzilla/show_bug.cgi?id=60153
Bug ID: 60153
Summary: Use ZipEntrySource in SXSSF module
Product: POI
Version: 3.14-FINAL
Hardware: PC
OS: Mac OS X 10.1
Status: NEW
Severity: normal
Priority: P2
Component: SXSSF
Assignee: dev@poi.apache.org
Reporter: fannin...@yahoo.com
The current SXSSF implementation uses temp files and this is problematic for
companies who want all their data at rest to be encrypted.
https://bz.apache.org/bugzilla/show_bug.cgi?id=59841 added support for
developers to use their own implementations of ZipEntrySource when reading inro
XSSF workbook. I have my own subclass of this that encrypts the temp file data.
The ZipEntrySource interface is read only but it would be feasible to have
support for a writer to create ZipEntrySources too (eg something like
org.apache.poi.poifs.crypt.TestSecureTempZip).
org.apache.poi.xssf.streaming.SheetDataWriter exposes the temp file via its
public API. If we were able to deprecate this and just provide Readers and
Writers, then this could also be subclassed to have the data in the temp file
encrypted. We could also allow a pattern where the readers and writers could be
decorated with encryptors/decryptors.
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