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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 28 // MARKER( update_precomp.py ): autogen include statement, do not remove 29 #include "precompiled_comphelper.hxx" 30 31 #include "comphelper_module.hxx" 32 33 #include <sal/config.h> 34 #include <osl/mutex.hxx> 35 #include <cppuhelper/factory.hxx> 36 #include <cppuhelper/implementationentry.hxx> 37 #include <cppuhelper/implbase3.hxx> 38 #include <comphelper/seqstream.hxx> 39 #include <com/sun/star/lang/XServiceInfo.hpp> 40 #include <com/sun/star/io/XSeekableInputStream.hpp> 41 #include <com/sun/star/lang/XInitialization.hpp> 42 #include <com/sun/star/frame/DoubleInitializationException.hpp> 43 #include <com/sun/star/uno/XComponentContext.hpp> 44 45 46 using namespace ::com::sun::star; 47 48 namespace { 49 50 class SequenceInputStreamService: 51 public ::cppu::WeakImplHelper3< 52 lang::XServiceInfo, 53 io::XSeekableInputStream, 54 lang::XInitialization> 55 { 56 public: 57 explicit SequenceInputStreamService(); 58 59 // ::com::sun::star::lang::XServiceInfo: 60 virtual ::rtl::OUString SAL_CALL getImplementationName() throw ( uno::RuntimeException ); 61 virtual ::sal_Bool SAL_CALL supportsService( const ::rtl::OUString & ServiceName ) throw ( uno::RuntimeException ); 62 virtual uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames() throw ( uno::RuntimeException ); 63 64 // XServiceInfo - static versions (used for component registration) 65 static ::rtl::OUString SAL_CALL getImplementationName_static(); 66 static uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames_static(); 67 static uno::Reference< uno::XInterface > SAL_CALL Create( const uno::Reference< uno::XComponentContext >& ); 68 69 // ::com::sun::star::io::XInputStream: 70 virtual ::sal_Int32 SAL_CALL readBytes( uno::Sequence< ::sal_Int8 > & aData, ::sal_Int32 nBytesToRead ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException ); 71 virtual ::sal_Int32 SAL_CALL readSomeBytes( uno::Sequence< ::sal_Int8 > & aData, ::sal_Int32 nMaxBytesToRead ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException ); 72 virtual void SAL_CALL skipBytes( ::sal_Int32 nBytesToSkip ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException ); 73 virtual ::sal_Int32 SAL_CALL available() throw ( uno::RuntimeException, io::NotConnectedException, io::IOException ); 74 virtual void SAL_CALL closeInput() throw ( uno::RuntimeException, io::NotConnectedException, io::IOException ); 75 76 // ::com::sun::star::io::XSeekable: 77 virtual void SAL_CALL seek( ::sal_Int64 location ) throw ( uno::RuntimeException, lang::IllegalArgumentException, io::IOException ); 78 virtual ::sal_Int64 SAL_CALL getPosition() throw ( uno::RuntimeException, io::IOException ); 79 virtual ::sal_Int64 SAL_CALL getLength() throw ( uno::RuntimeException, io::IOException ); 80 81 // ::com::sun::star::lang::XInitialization: 82 virtual void SAL_CALL initialize( const uno::Sequence< ::com::sun::star::uno::Any > & aArguments ) throw ( uno::RuntimeException, uno::Exception ); 83 84 private: 85 SequenceInputStreamService( SequenceInputStreamService & ); // not defined 86 void operator =( SequenceInputStreamService & ); // not defined 87 88 virtual ~SequenceInputStreamService() {} 89 90 91 ::osl::Mutex m_aMutex; 92 sal_Bool m_bInitialized; 93 uno::Reference< io::XInputStream > m_xInputStream; 94 uno::Reference< io::XSeekable > m_xSeekable; 95 }; 96 97 SequenceInputStreamService::SequenceInputStreamService() 98 : m_bInitialized( sal_False ) 99 {} 100 101 // com.sun.star.uno.XServiceInfo: 102 ::rtl::OUString SAL_CALL SequenceInputStreamService::getImplementationName() throw ( uno::RuntimeException ) 103 { 104 return getImplementationName_static(); 105 } 106 107 ::rtl::OUString SAL_CALL SequenceInputStreamService::getImplementationName_static() 108 { 109 return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.comp.SequenceInputStreamService" ) ); 110 } 111 112 ::sal_Bool SAL_CALL SequenceInputStreamService::supportsService( ::rtl::OUString const & serviceName ) throw ( uno::RuntimeException ) 113 { 114 uno::Sequence< ::rtl::OUString > serviceNames = getSupportedServiceNames(); 115 for ( ::sal_Int32 i = 0; i < serviceNames.getLength(); ++i ) { 116 if ( serviceNames[i] == serviceName ) 117 return sal_True; 118 } 119 return sal_False; 120 } 121 122 uno::Sequence< ::rtl::OUString > SAL_CALL SequenceInputStreamService::getSupportedServiceNames() throw ( uno::RuntimeException ) 123 { 124 return getSupportedServiceNames_static(); 125 } 126 127 uno::Sequence< ::rtl::OUString > SAL_CALL SequenceInputStreamService::getSupportedServiceNames_static() 128 { 129 uno::Sequence< ::rtl::OUString > s( 1 ); 130 s[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( 131 "com.sun.star.io.SequenceInputStream" ) ); 132 return s; 133 } 134 135 uno::Reference< uno::XInterface > SAL_CALL SequenceInputStreamService::Create( 136 const uno::Reference< uno::XComponentContext >& ) 137 { 138 return static_cast< ::cppu::OWeakObject * >( new SequenceInputStreamService() ); 139 } 140 141 // ::com::sun::star::io::XInputStream: 142 ::sal_Int32 SAL_CALL SequenceInputStreamService::readBytes( uno::Sequence< ::sal_Int8 > & aData, ::sal_Int32 nBytesToRead ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException ) 143 { 144 ::osl::MutexGuard aGuard( m_aMutex ); 145 if ( !m_xInputStream.is() ) 146 throw io::NotConnectedException(); 147 148 return m_xInputStream->readBytes( aData, nBytesToRead ); 149 } 150 151 ::sal_Int32 SAL_CALL SequenceInputStreamService::readSomeBytes( uno::Sequence< ::sal_Int8 > & aData, ::sal_Int32 nMaxBytesToRead ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException ) 152 { 153 ::osl::MutexGuard aGuard( m_aMutex ); 154 if ( !m_xInputStream.is() ) 155 throw io::NotConnectedException(); 156 157 return m_xInputStream->readSomeBytes( aData, nMaxBytesToRead ); 158 } 159 160 void SAL_CALL SequenceInputStreamService::skipBytes( ::sal_Int32 nBytesToSkip ) throw ( uno::RuntimeException, io::NotConnectedException, io::BufferSizeExceededException, io::IOException ) 161 { 162 ::osl::MutexGuard aGuard( m_aMutex ); 163 if ( !m_xInputStream.is() ) 164 throw io::NotConnectedException(); 165 166 return m_xInputStream->skipBytes( nBytesToSkip ); 167 } 168 169 ::sal_Int32 SAL_CALL SequenceInputStreamService::available() throw ( uno::RuntimeException, io::NotConnectedException, io::IOException ) 170 { 171 ::osl::MutexGuard aGuard( m_aMutex ); 172 if ( !m_xInputStream.is() ) 173 throw io::NotConnectedException(); 174 175 return m_xInputStream->available(); 176 } 177 178 void SAL_CALL SequenceInputStreamService::closeInput() throw ( uno::RuntimeException, io::NotConnectedException, io::IOException ) 179 { 180 ::osl::MutexGuard aGuard( m_aMutex ); 181 if ( !m_xInputStream.is() ) 182 throw io::NotConnectedException(); 183 184 m_xInputStream->closeInput(); 185 m_xInputStream = uno::Reference< io::XInputStream >(); 186 m_xSeekable = uno::Reference< io::XSeekable >(); 187 } 188 189 // ::com::sun::star::io::XSeekable: 190 void SAL_CALL SequenceInputStreamService::seek( ::sal_Int64 location ) throw ( uno::RuntimeException, lang::IllegalArgumentException, io::IOException ) 191 { 192 ::osl::MutexGuard aGuard( m_aMutex ); 193 if ( !m_xSeekable.is() ) 194 throw io::NotConnectedException(); 195 196 m_xSeekable->seek( location ); 197 } 198 199 ::sal_Int64 SAL_CALL SequenceInputStreamService::getPosition() throw ( uno::RuntimeException, io::IOException ) 200 { 201 ::osl::MutexGuard aGuard( m_aMutex ); 202 if ( !m_xSeekable.is() ) 203 throw io::NotConnectedException(); 204 205 return m_xSeekable->getPosition(); 206 } 207 208 ::sal_Int64 SAL_CALL SequenceInputStreamService::getLength() throw ( uno::RuntimeException, io::IOException ) 209 { 210 ::osl::MutexGuard aGuard( m_aMutex ); 211 if ( !m_xSeekable.is() ) 212 throw io::NotConnectedException(); 213 214 return m_xSeekable->getLength(); 215 } 216 217 // ::com::sun::star::lang::XInitialization: 218 void SAL_CALL SequenceInputStreamService::initialize( const uno::Sequence< ::com::sun::star::uno::Any > & aArguments ) throw ( uno::RuntimeException, uno::Exception ) 219 { 220 ::osl::MutexGuard aGuard( m_aMutex ); 221 if ( m_bInitialized ) 222 throw frame::DoubleInitializationException(); 223 224 if ( aArguments.getLength() != 1 ) 225 throw lang::IllegalArgumentException( ::rtl::OUString::createFromAscii( "Wrong number of arguments!\n" ), 226 uno::Reference< uno::XInterface >( static_cast< ::cppu::OWeakObject* >(this) ), 227 1 ); 228 229 uno::Sequence< sal_Int8 > aSeq; 230 if ( aArguments[0] >>= aSeq ) 231 { 232 uno::Reference< io::XInputStream > xInputStream( 233 static_cast< ::cppu::OWeakObject* >( new ::comphelper::SequenceInputStream( aSeq ) ), 234 uno::UNO_QUERY_THROW ); 235 uno::Reference< io::XSeekable > xSeekable( xInputStream, uno::UNO_QUERY_THROW ); 236 m_xInputStream = xInputStream; 237 m_xSeekable = xSeekable; 238 m_bInitialized = sal_True; 239 } 240 else 241 throw lang::IllegalArgumentException( ::rtl::OUString::createFromAscii( "Unexpected type of argument!\n" ), 242 uno::Reference< uno::XInterface >( static_cast< ::cppu::OWeakObject* >(this) ), 243 1 ); 244 } 245 246 } // anonymous namespace 247 248 void createRegistryInfo_SequenceInputStream() 249 { 250 static ::comphelper::module::OAutoRegistration< SequenceInputStreamService > aAutoRegistration; 251 } 252