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 _COMPHELPER_STREAM_SEEKABLEINPUT_HXX_ 24 #define _COMPHELPER_STREAM_SEEKABLEINPUT_HXX_ 25 26 #include <osl/mutex.hxx> 27 #include <com/sun/star/uno/Reference.hxx> 28 #include <com/sun/star/lang/XMultiServiceFactory.hpp> 29 #include <com/sun/star/io/XInputStream.hpp> 30 #include <com/sun/star/io/XSeekable.hpp> 31 #include <cppuhelper/implbase2.hxx> 32 #include "comphelper/comphelperdllapi.h" 33 34 namespace comphelper 35 { 36 37 class COMPHELPER_DLLPUBLIC OSeekableInputWrapper : public ::cppu::WeakImplHelper2< ::com::sun::star::io::XInputStream, 38 ::com::sun::star::io::XSeekable > 39 { 40 ::osl::Mutex m_aMutex; 41 42 ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > m_xFactory; 43 44 ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > m_xOriginalStream; 45 46 ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > m_xCopyInput; 47 ::com::sun::star::uno::Reference< ::com::sun::star::io::XSeekable > m_xCopySeek; 48 49 private: 50 COMPHELPER_DLLPRIVATE void PrepareCopy_Impl(); 51 52 public: 53 OSeekableInputWrapper( 54 const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xInStream, 55 const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xFactory ); 56 57 virtual ~OSeekableInputWrapper(); 58 59 static ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > CheckSeekableCanWrap( 60 const ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream >& xInStream, 61 const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xFactory ); 62 63 // XInputStream 64 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); 65 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); 66 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); 67 virtual sal_Int32 SAL_CALL available() throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 68 virtual void SAL_CALL closeInput() throw (::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 69 70 // XSeekable 71 virtual void SAL_CALL seek( sal_Int64 location ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 72 virtual sal_Int64 SAL_CALL getPosition() throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 73 virtual sal_Int64 SAL_CALL getLength() throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); 74 75 }; 76 77 } // namespace comphelper 78 79 #endif 80 81