/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
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* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership . The ASF licenses this file to you under the Apache
* License , Version 2 . 0 ( the " License " ) ; you may not use this file
* except in compliance with the License . You may obtain a copy of
* the License at http : //www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_PACKAGE_INC_ZIPOUTPUTENTRY_HXX
#define INCLUDED_PACKAGE_INC_ZIPOUTPUTENTRY_HXX
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XTempFile.hpp>
#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/xml/crypto/XCipherContext.hpp>
#include <com/sun/star/xml/crypto/XDigestContext.hpp>
#include <package/Deflater.hxx>
#include <comphelper/threadpool.hxx>
#include <unotools/tempfile.hxx>
#include "CRC32.hxx"
#include <atomic>
#include <exception>
struct ZipEntry;
class ZipPackageBuffer;
class ZipPackageStream;
class ZipOutputEntryBase
{
protected :
css::uno::Reference< css::uno::XComponentContext > m_xContext;
css::uno::Reference< css::io::XOutputStream > m_xOutStream;
css::uno::Reference< css::xml::crypto::XCipherContext > m_xCipherContext;
css::uno::Reference< css::xml::crypto::XDigestContext > m_xDigestContext;
CRC32 m_aCRC;
ZipEntry *m_pCurrentEntry;
sal_Int16 m_nDigested;
ZipPackageStream* m_pCurrentStream;
bool m_bEncryptCurrentEntry;
public :
virtual ~ZipOutputEntryBase() = default ;
virtual void writeStream(const css::uno::Reference< css::io::XInputStream >& xInStream) = 0 ;
ZipEntry* getZipEntry() { return m_pCurrentEntry; }
ZipPackageStream* getZipPackageStream() { return m_pCurrentStream; }
bool isEncrypt() const { return m_bEncryptCurrentEntry; }
void closeEntry();
protected :
ZipOutputEntryBase(
css::uno::Reference< css::io::XOutputStream > xOutStream,
css::uno::Reference< css::uno::XComponentContext > xContext,
ZipEntry* pEntry, ZipPackageStream* pStream, bool bEncrypt, bool checkStream);
// Inherited classes call this with deflated data buffer.
void processDeflated( const css::uno::Sequence< sal_Int8 >& deflateBuffer, sal_Int32 nLength );
// Inherited classes call this with the input buffer.
void processInput( const css::uno::Sequence< sal_Int8 >& rBuffer );
virtual void finishDeflater() = 0 ;
virtual sal_Int64 getDeflaterTotalIn() const = 0 ;
virtual sal_Int64 getDeflaterTotalOut() const = 0 ;
virtual void deflaterReset() = 0 ;
virtual bool isDeflaterFinished() const = 0 ;
};
// Normal non-threaded case.
class ZipOutputEntry : public ZipOutputEntryBase
{
css::uno::Sequence< sal_Int8 > m_aDeflateBuffer;
ZipUtils::Deflater m_aDeflater;
public :
ZipOutputEntry(
const css::uno::Reference< css::io::XOutputStream >& rxOutStream,
const css::uno::Reference< css::uno::XComponentContext >& rxContext,
ZipEntry* pEntry, ZipPackageStream* pStream, bool bEncrypt);
void writeStream(const css::uno::Reference< css::io::XInputStream >& xInStream) override;
void write(const css::uno::Sequence< sal_Int8 >& rBuffer);
protected :
ZipOutputEntry(
const css::uno::Reference< css::io::XOutputStream >& rxOutStream,
const css::uno::Reference< css::uno::XComponentContext >& rxContext,
ZipEntry* pEntry, ZipPackageStream* pStream, bool bEncrypt, bool checkStream);
virtual void finishDeflater() override;
virtual sal_Int64 getDeflaterTotalIn() const override;
virtual sal_Int64 getDeflaterTotalOut() const override;
virtual void deflaterReset() override;
virtual bool isDeflaterFinished() const override;
void doDeflate();
};
// Class that runs the compression in a background thread.
class ZipOutputEntryInThread final : public ZipOutputEntry
{
class Task;
std::unique_ptr<ZipEntry> m_pOwnedZipEntry;
rtl::Reference<utl::TempFileFastService> m_xTempFile;
std::exception_ptr m_aParallelDeflateException;
std::atomic<bool > m_bFinished;
public :
ZipOutputEntryInThread(
const css::uno::Reference< css::uno::XComponentContext >& rxContext,
std::unique_ptr<ZipEntry>&& pEntry, ZipPackageStream* pStream, bool bEncrypt);
std::unique_ptr<comphelper::ThreadTask> createTask(
const std::shared_ptr<comphelper::ThreadTaskTag>& pTag,
const css::uno::Reference< css::io::XInputStream >& xInStream );
/* This block of methods is for threaded zipping, where we compress to a temp stream, whose
data is retrieved via getData */
void createBufferFile();
void setParallelDeflateException(const std::exception_ptr& exception) { m_aParallelDeflateException = exception; }
css::uno::Reference< css::io::XInputStream > getData() const ;
const std::exception_ptr& getParallelDeflateException() const { return m_aParallelDeflateException; }
void closeBufferFile();
void deleteBufferFile();
bool isFinished() const { return m_bFinished; }
std::unique_ptr<ZipEntry>&& moveZipEntry() { return std::move(m_pOwnedZipEntry); }
private :
void setFinished() { m_bFinished = true ; }
};
// Class that synchronously runs the compression in multiple threads (using ThreadDeflater).
class ZipOutputEntryParallel final : public ZipOutputEntryBase
{
sal_Int64 totalIn;
sal_Int64 totalOut;
bool finished;
public :
ZipOutputEntryParallel(
const css::uno::Reference< css::io::XOutputStream >& rxOutStream,
const css::uno::Reference< css::uno::XComponentContext >& rxContext,
ZipEntry* pEntry, ZipPackageStream* pStream, bool bEncrypt);
void writeStream(const css::uno::Reference< css::io::XInputStream >& xInStream) override;
private :
virtual void finishDeflater() override;
virtual sal_Int64 getDeflaterTotalIn() const override;
virtual sal_Int64 getDeflaterTotalOut() const override;
virtual void deflaterReset() override;
virtual bool isDeflaterFinished() const override;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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