1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 #ifndef _SPSTREAM_HXX 24 #define _SPSTREAM_HXX 25 26 #include <com/sun/star/uno/Sequence.hxx> 27 #include <com/sun/star/uno/Reference.hxx> 28 #include <com/sun/star/io/XInputStream.hpp> 29 #include <com/sun/star/io/XOutputStream.hpp> 30 #include <com/sun/star/io/XSeekable.hpp> 31 #include <com/sun/star/io/XTruncate.hpp> 32 #include <com/sun/star/io/XStream.hpp> 33 #include <com/sun/star/embed/XTransactedObject.hpp> 34 #include <com/sun/star/beans/XPropertySetInfo.hpp> 35 #include <com/sun/star/beans/XPropertySet.hpp> 36 #include <com/sun/star/ucb/XSimpleFileAccess.hpp> 37 #include <com/sun/star/io/XAsyncOutputMonitor.hpp> 38 #include <osl/mutex.hxx> 39 #include <cppuhelper/implbase6.hxx> 40 41 //================================================================== 42 // SwitchablePersistenceStream 43 // 44 // Allows to switch the stream persistence on the fly. The target 45 // stream ( if not filled by the implementation ) MUST have the same 46 // size as the original one! 47 //================================================================== 48 49 struct SPStreamData_Impl; 50 class SwitchablePersistenceStream 51 : public ::cppu::WeakImplHelper6 < 52 ::com::sun::star::io::XStream, 53 ::com::sun::star::io::XInputStream, 54 ::com::sun::star::io::XOutputStream, 55 ::com::sun::star::io::XTruncate, 56 ::com::sun::star::io::XSeekable, 57 ::com::sun::star::io::XAsyncOutputMonitor > 58 { 59 ::osl::Mutex m_aMutex; 60 61 const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > m_xFactory; 62 63 SPStreamData_Impl* m_pStreamData; 64 65 void CloseAll_Impl(); 66 67 public: 68 69 SwitchablePersistenceStream( 70 const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xFactory, 71 const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xStream ); 72 73 SwitchablePersistenceStream( 74 const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xFactory, 75 const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xInStream ); 76 77 ~SwitchablePersistenceStream(); 78 79 void SwitchPersistenceTo( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xStream ); 80 81 void SwitchPersistenceTo( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xInputStream ); 82 83 void CopyAndSwitchPersistenceTo( const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xStream ); 84 85 // com::sun::star::io::XStream 86 virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > SAL_CALL getInputStream( ) throw (::com::sun::star::uno::RuntimeException); 87 virtual ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > SAL_CALL getOutputStream( ) throw (::com::sun::star::uno::RuntimeException); 88 89 // com::sun::star::io::XInputStream 90 virtual ::sal_Int32 SAL_CALL readBytes( ::com::sun::star::uno::Sequence< ::sal_Int8 >& aData, ::sal_Int32 nBytesToRead ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 91 virtual ::sal_Int32 SAL_CALL readSomeBytes( ::com::sun::star::uno::Sequence< ::sal_Int8 >& aData, ::sal_Int32 nMaxBytesToRead ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 92 virtual void SAL_CALL skipBytes( ::sal_Int32 nBytesToSkip ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 93 virtual ::sal_Int32 SAL_CALL available( ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 94 virtual void SAL_CALL closeInput( ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 95 96 // com::sun::star::io::XOutputStream 97 virtual void SAL_CALL writeBytes( const ::com::sun::star::uno::Sequence< ::sal_Int8 >& aData ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 98 virtual void SAL_CALL flush( ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 99 virtual void SAL_CALL closeOutput( ) throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 100 101 // com::sun::star::io::XTruncate 102 virtual void SAL_CALL truncate( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 103 104 // com::sun::star::io::XSeekable 105 virtual void SAL_CALL seek( ::sal_Int64 location ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 106 virtual ::sal_Int64 SAL_CALL getPosition( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 107 virtual ::sal_Int64 SAL_CALL getLength( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 108 109 // ::com::sun::star::io::XAsyncOutputMonitor 110 virtual void SAL_CALL waitForCompletion( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 111 112 }; 113 114 #endif //_SPSTREAM_HXX 115 116 117