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See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 #include "unotools/unotoolsdllapi.h" 28 29 #ifndef _UTL_STREAM_WRAPPER_HXX_ 30 #define _UTL_STREAM_WRAPPER_HXX_ 31 #include <osl/mutex.hxx> 32 #include <com/sun/star/io/XOutputStream.hpp> 33 #include <com/sun/star/io/XInputStream.hpp> 34 #include <com/sun/star/io/XSeekable.hpp> 35 #include <com/sun/star/io/XTruncate.hpp> 36 #include <com/sun/star/io/XStream.hpp> 37 #include <cppuhelper/implbase3.hxx> 38 #include <cppuhelper/implbase1.hxx> 39 40 class SvStream; 41 42 namespace utl 43 { 44 namespace stario = ::com::sun::star::io; 45 namespace staruno = ::com::sun::star::uno; 46 47 //================================================================== 48 //= OInputStreamWrapper 49 //================================================================== 50 typedef ::cppu::WeakImplHelper1 < stario::XInputStream 51 > InputStreamWrapper_Base; 52 // needed for some compilers 53 /// helper class for wrapping an SvStream into an <type scope="com.sun.star.io">XInputStream</type> 54 class UNOTOOLS_DLLPUBLIC OInputStreamWrapper : public InputStreamWrapper_Base 55 { 56 protected: 57 ::osl::Mutex m_aMutex; 58 SvStream* m_pSvStream; 59 sal_Bool m_bSvStreamOwner : 1; 60 OInputStreamWrapper() 61 { m_pSvStream = 0; m_bSvStreamOwner = sal_False; } 62 void SetStream(SvStream* _pStream, sal_Bool bOwner ) 63 { m_pSvStream = _pStream; m_bSvStreamOwner = bOwner; } 64 65 public: 66 OInputStreamWrapper(SvStream& _rStream); 67 OInputStreamWrapper(SvStream* pStream, sal_Bool bOwner=sal_False); 68 virtual ~OInputStreamWrapper(); 69 70 // stario::XInputStream 71 virtual sal_Int32 SAL_CALL readBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); 72 virtual sal_Int32 SAL_CALL readSomeBytes(staruno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); 73 virtual void SAL_CALL skipBytes(sal_Int32 nBytesToSkip) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); 74 virtual sal_Int32 SAL_CALL available() throw(stario::NotConnectedException, staruno::RuntimeException); 75 virtual void SAL_CALL closeInput() throw(stario::NotConnectedException, staruno::RuntimeException); 76 77 protected: 78 /// throws a NotConnectedException if the object is not connected anymore 79 void checkConnected() const; 80 /// throws an exception according to the error flag of m_pSvStream 81 void checkError() const; 82 }; 83 84 //================================================================== 85 //= OSeekableInputStreamWrapper 86 //================================================================== 87 typedef ::cppu::ImplHelper1 < ::com::sun::star::io::XSeekable 88 > OSeekableInputStreamWrapper_Base; 89 /** helper class for wrapping an SvStream into an <type scope="com.sun.star.io">XInputStream</type> 90 which is seekable (i.e. supports the <type scope="com.sun.star.io">XSeekable</type> interface). 91 */ 92 class UNOTOOLS_DLLPUBLIC OSeekableInputStreamWrapper : public ::cppu::ImplInheritanceHelper1 < OInputStreamWrapper, com::sun::star::io::XSeekable > 93 { 94 protected: 95 OSeekableInputStreamWrapper() {} 96 public: 97 OSeekableInputStreamWrapper(SvStream& _rStream); 98 OSeekableInputStreamWrapper(SvStream* _pStream, sal_Bool _bOwner = sal_False); 99 100 // XSeekable 101 virtual void SAL_CALL seek( sal_Int64 _nLocation ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 102 virtual sal_Int64 SAL_CALL getPosition( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 103 virtual sal_Int64 SAL_CALL getLength( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 104 }; 105 106 //================================================================== 107 //= OOutputStreamWrapper 108 //================================================================== 109 typedef ::cppu::WeakImplHelper1<stario::XOutputStream> OutputStreamWrapper_Base; 110 // needed for some compilers 111 class UNOTOOLS_DLLPUBLIC OOutputStreamWrapper : public OutputStreamWrapper_Base 112 { 113 protected: 114 // TODO: thread safety! 115 SvStream& rStream; 116 117 public: 118 OOutputStreamWrapper(SvStream& _rStream) :rStream(_rStream) { } 119 120 // stario::XOutputStream 121 virtual void SAL_CALL writeBytes(const staruno::Sequence< sal_Int8 >& aData) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); 122 virtual void SAL_CALL flush() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); 123 virtual void SAL_CALL closeOutput() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); 124 125 protected: 126 /// throws an exception according to the error flag of m_pSvStream 127 void checkError() const; 128 }; 129 130 //================================================================== 131 //= OSeekableOutputStreamWrapper 132 //================================================================== 133 typedef ::cppu::ImplHelper1 < ::com::sun::star::io::XSeekable 134 > OSeekableOutputStreamWrapper_Base; 135 /** helper class for wrapping an SvStream into an <type scope="com.sun.star.io">XOutputStream</type> 136 which is seekable (i.e. supports the <type scope="com.sun.star.io">XSeekable</type> interface). 137 */ 138 class UNOTOOLS_DLLPUBLIC OSeekableOutputStreamWrapper 139 :public OOutputStreamWrapper 140 ,public OSeekableOutputStreamWrapper_Base 141 { 142 public: 143 OSeekableOutputStreamWrapper(SvStream& _rStream); 144 145 // disambiguate XInterface 146 virtual ::com::sun::star::uno::Any SAL_CALL queryInterface( const ::com::sun::star::uno::Type& _rType ) throw (::com::sun::star::uno::RuntimeException); 147 virtual void SAL_CALL acquire( ) throw (); 148 virtual void SAL_CALL release( ) throw (); 149 150 // XSeekable 151 virtual void SAL_CALL seek( sal_Int64 _nLocation ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 152 virtual sal_Int64 SAL_CALL getPosition( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 153 virtual sal_Int64 SAL_CALL getLength( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 154 }; 155 156 class UNOTOOLS_DLLPUBLIC OStreamWrapper : public ::cppu::ImplInheritanceHelper3 < OSeekableInputStreamWrapper, com::sun::star::io::XStream, com::sun::star::io::XOutputStream, com::sun::star::io::XTruncate > 157 { 158 public: 159 OStreamWrapper(SvStream& _rStream); 160 161 // stario::XStream 162 virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > SAL_CALL getInputStream( ) throw (::com::sun::star::uno::RuntimeException); 163 virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > SAL_CALL getOutputStream( ) throw (::com::sun::star::uno::RuntimeException); 164 165 // stario::XOutputStream 166 virtual void SAL_CALL writeBytes(const staruno::Sequence< sal_Int8 >& aData) throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); 167 virtual void SAL_CALL flush() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); 168 virtual void SAL_CALL closeOutput() throw(stario::NotConnectedException, stario::BufferSizeExceededException, staruno::RuntimeException); 169 virtual void SAL_CALL truncate() throw(::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 170 }; 171 172 } 173 // namespace utl 174 175 #endif // _UTL_STREAM_WRAPPER_HXX_ 176 177