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Diffstat (limited to 'include/unotools/streamwrap.hxx')
-rw-r--r-- | include/unotools/streamwrap.hxx | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/include/unotools/streamwrap.hxx b/include/unotools/streamwrap.hxx new file mode 100644 index 000000000000..097b3dee94e3 --- /dev/null +++ b/include/unotools/streamwrap.hxx @@ -0,0 +1,173 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * 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 . + */ +#include "unotools/unotoolsdllapi.h" + +#ifndef _UTL_STREAM_WRAPPER_HXX_ +#define _UTL_STREAM_WRAPPER_HXX_ +#include <osl/mutex.hxx> +#include <com/sun/star/io/XOutputStream.hpp> +#include <com/sun/star/io/XInputStream.hpp> +#include <com/sun/star/io/XSeekable.hpp> +#include <com/sun/star/io/XTruncate.hpp> +#include <com/sun/star/io/XStream.hpp> +#include <cppuhelper/implbase3.hxx> +#include <cppuhelper/implbase1.hxx> + +class SvStream; + +namespace utl +{ + namespace stario = ::com::sun::star::io; + namespace staruno = ::com::sun::star::uno; + +//================================================================== +//= OInputStreamWrapper +//================================================================== +typedef ::cppu::WeakImplHelper1 < stario::XInputStream + > InputStreamWrapper_Base; +// needed for some compilers +/// helper class for wrapping an SvStream into an <type scope="com.sun.star.io">XInputStream</type> +class UNOTOOLS_DLLPUBLIC OInputStreamWrapper : public InputStreamWrapper_Base +{ +protected: + ::osl::Mutex m_aMutex; + SvStream* m_pSvStream; + sal_Bool m_bSvStreamOwner : 1; + OInputStreamWrapper() + { m_pSvStream = 0; m_bSvStreamOwner = sal_False; } + void SetStream(SvStream* _pStream, sal_Bool bOwner ) + { m_pSvStream = _pStream; m_bSvStreamOwner = bOwner; } + +public: + OInputStreamWrapper(SvStream& _rStream); + OInputStreamWrapper(SvStream* pStream, sal_Bool bOwner=sal_False); + virtual ~OInputStreamWrapper(); + +// stario::XInputStream + virtual sal_Int32 SAL_CALL readBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); + virtual sal_Int32 SAL_CALL readSomeBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); + virtual void SAL_CALL skipBytes(sal_Int32 nBytesToSkip) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); + virtual sal_Int32 SAL_CALL available() throw(stario::NotConnectedException, staruno::RuntimeException); + virtual void SAL_CALL closeInput() throw(stario::NotConnectedException, staruno::RuntimeException); + +protected: + /// throws a NotConnectedException if the object is not connected anymore + void checkConnected() const; + /// throws an exception according to the error flag of m_pSvStream + void checkError() const; +}; + +//================================================================== +//= OSeekableInputStreamWrapper +//================================================================== +typedef ::cppu::ImplHelper1 < ::com::sun::star::io::XSeekable + > OSeekableInputStreamWrapper_Base; +/** helper class for wrapping an SvStream into an <type scope="com.sun.star.io">XInputStream</type> + which is seekable (i.e. supports the <type scope="com.sun.star.io">XSeekable</type> interface). +*/ +class UNOTOOLS_DLLPUBLIC OSeekableInputStreamWrapper : public ::cppu::ImplInheritanceHelper1 < OInputStreamWrapper, com::sun::star::io::XSeekable > +{ +protected: + OSeekableInputStreamWrapper() {} +public: + OSeekableInputStreamWrapper(SvStream& _rStream); + OSeekableInputStreamWrapper(SvStream* _pStream, sal_Bool _bOwner = sal_False); + + // XSeekable + virtual void SAL_CALL seek( sal_Int64 _nLocation ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); + virtual sal_Int64 SAL_CALL getPosition( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); + virtual sal_Int64 SAL_CALL getLength( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); +}; + +//================================================================== +//= OOutputStreamWrapper +//================================================================== +typedef ::cppu::WeakImplHelper1<stario::XOutputStream> OutputStreamWrapper_Base; + // needed for some compilers +class OOutputStreamWrapper : public OutputStreamWrapper_Base +{ +public: + UNOTOOLS_DLLPUBLIC OOutputStreamWrapper(SvStream& _rStream); + +protected: + virtual ~OOutputStreamWrapper(); + +// stario::XOutputStream + virtual void SAL_CALL writeBytes(const staruno::Sequence< sal_Int8 >& aData) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); + virtual void SAL_CALL flush() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); + virtual void SAL_CALL closeOutput() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); + + /// throws an exception according to the error flag of m_pSvStream + void checkError() const; + + // TODO: thread safety! + SvStream& rStream; +}; + +//================================================================== +//= OSeekableOutputStreamWrapper +//================================================================== +typedef ::cppu::ImplHelper1 < ::com::sun::star::io::XSeekable + > OSeekableOutputStreamWrapper_Base; +/** helper class for wrapping an SvStream into an <type scope="com.sun.star.io">XOutputStream</type> + which is seekable (i.e. supports the <type scope="com.sun.star.io">XSeekable</type> interface). +*/ +class OSeekableOutputStreamWrapper + :public OOutputStreamWrapper + ,public OSeekableOutputStreamWrapper_Base +{ +public: + UNOTOOLS_DLLPUBLIC OSeekableOutputStreamWrapper(SvStream& _rStream); + +private: + virtual ~OSeekableOutputStreamWrapper(); + + // disambiguate XInterface + virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type& _rType ) throw (::com::sun::star::uno::RuntimeException); + virtual void SAL_CALL acquire( ) throw (); + virtual void SAL_CALL release( ) throw (); + + // XSeekable + virtual void SAL_CALL seek( sal_Int64 _nLocation ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); + virtual sal_Int64 SAL_CALL getPosition( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); + virtual sal_Int64 SAL_CALL getLength( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); +}; + +class UNOTOOLS_DLLPUBLIC OStreamWrapper : public ::cppu::ImplInheritanceHelper3 < OSeekableInputStreamWrapper, com::sun::star::io::XStream, com::sun::star::io::XOutputStream, com::sun::star::io::XTruncate > +{ +public: + OStreamWrapper(SvStream& _rStream); + +// stario::XStream + virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > SAL_CALL getInputStream( ) throw (::com::sun::star::uno::RuntimeException); + virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > SAL_CALL getOutputStream( ) throw (::com::sun::star::uno::RuntimeException); + +// stario::XOutputStream + virtual void SAL_CALL writeBytes(const staruno::Sequence< sal_Int8 >& aData) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); + virtual void SAL_CALL flush() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); + virtual void SAL_CALL closeOutput() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); + virtual void SAL_CALL truncate() throw(::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); +}; + +} +// namespace utl + +#endif // _UTL_STREAM_WRAPPER_HXX_ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |