| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #include "oox/helper/textinputstream.hxx" |
| |
| #include <com/sun/star/io/XActiveDataSink.hpp> |
| #include <com/sun/star/io/XTextInputStream.hpp> |
| #include <cppuhelper/implbase1.hxx> |
| #include <rtl/tencinfo.h> |
| #include "oox/helper/binaryinputstream.hxx" |
| |
| namespace oox { |
| |
| // ============================================================================ |
| |
| using namespace ::com::sun::star::io; |
| using namespace ::com::sun::star::lang; |
| using namespace ::com::sun::star::uno; |
| |
| using ::rtl::OUString; |
| |
| // ============================================================================ |
| |
| namespace { |
| |
| typedef ::cppu::WeakImplHelper1< XInputStream > UnoBinaryInputStream_BASE; |
| |
| /** Implementation of a UNO input stream wrapping a binary input stream. |
| */ |
| class UnoBinaryInputStream : public UnoBinaryInputStream_BASE |
| { |
| public: |
| explicit UnoBinaryInputStream( BinaryInputStream& rInStrm ); |
| |
| virtual sal_Int32 SAL_CALL readBytes( Sequence< sal_Int8 >& rData, sal_Int32 nBytesToRead ) |
| throw (NotConnectedException, BufferSizeExceededException, IOException, RuntimeException); |
| virtual sal_Int32 SAL_CALL readSomeBytes( Sequence< sal_Int8 >& rData, sal_Int32 nMaxBytesToRead ) |
| throw (NotConnectedException, BufferSizeExceededException, IOException, RuntimeException); |
| virtual void SAL_CALL skipBytes( sal_Int32 nBytesToSkip ) |
| throw (NotConnectedException, BufferSizeExceededException, IOException, RuntimeException); |
| virtual sal_Int32 SAL_CALL available() |
| throw (NotConnectedException, IOException, RuntimeException); |
| virtual void SAL_CALL closeInput() |
| throw (NotConnectedException, IOException, RuntimeException); |
| |
| private: |
| void ensureConnected() const throw (NotConnectedException); |
| |
| private: |
| BinaryInputStream* mpInStrm; |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| UnoBinaryInputStream::UnoBinaryInputStream( BinaryInputStream& rInStrm ) : |
| mpInStrm( &rInStrm ) |
| { |
| } |
| |
| sal_Int32 SAL_CALL UnoBinaryInputStream::readBytes( Sequence< sal_Int8 >& rData, sal_Int32 nBytesToRead ) |
| throw (NotConnectedException, BufferSizeExceededException, IOException, RuntimeException) |
| { |
| ensureConnected(); |
| return mpInStrm->readData( rData, nBytesToRead, 1 ); |
| } |
| |
| sal_Int32 SAL_CALL UnoBinaryInputStream::readSomeBytes( Sequence< sal_Int8 >& rData, sal_Int32 nMaxBytesToRead ) |
| throw (NotConnectedException, BufferSizeExceededException, IOException, RuntimeException) |
| { |
| ensureConnected(); |
| return mpInStrm->readData( rData, nMaxBytesToRead, 1 ); |
| } |
| |
| void SAL_CALL UnoBinaryInputStream::skipBytes( sal_Int32 nBytesToSkip ) |
| throw (NotConnectedException, BufferSizeExceededException, IOException, RuntimeException) |
| { |
| ensureConnected(); |
| mpInStrm->skip( nBytesToSkip, 1 ); |
| } |
| |
| sal_Int32 SAL_CALL UnoBinaryInputStream::available() throw (NotConnectedException, IOException, RuntimeException) |
| { |
| ensureConnected(); |
| throw RuntimeException( CREATE_OUSTRING( "Functionality not supported" ), Reference< XInputStream >() ); |
| } |
| |
| void SAL_CALL UnoBinaryInputStream::closeInput() throw (NotConnectedException, IOException, RuntimeException) |
| { |
| ensureConnected(); |
| mpInStrm->close(); |
| mpInStrm = 0; |
| } |
| |
| void UnoBinaryInputStream::ensureConnected() const throw (NotConnectedException) |
| { |
| if( !mpInStrm ) |
| throw NotConnectedException( CREATE_OUSTRING( "Stream closed" ), Reference< XInterface >() ); |
| } |
| |
| } // namespace |
| |
| // ============================================================================ |
| |
| TextInputStream::TextInputStream( const Reference< XComponentContext >& rxContext, const Reference< XInputStream >& rxInStrm, rtl_TextEncoding eTextEnc ) |
| { |
| init( rxContext, rxInStrm, eTextEnc ); |
| } |
| |
| TextInputStream::TextInputStream( const Reference< XComponentContext >& rxContext, BinaryInputStream& rInStrm, rtl_TextEncoding eTextEnc ) |
| { |
| init( rxContext, new UnoBinaryInputStream( rInStrm ), eTextEnc ); |
| } |
| |
| TextInputStream::~TextInputStream() |
| { |
| } |
| |
| bool TextInputStream::isEof() const |
| { |
| if( mxTextStrm.is() ) try |
| { |
| return mxTextStrm->isEOF(); |
| } |
| catch( Exception& ) |
| { |
| } |
| return true; |
| } |
| |
| OUString TextInputStream::readLine() |
| { |
| if( mxTextStrm.is() ) try |
| { |
| /* The function createFinalString() adds a character that may have |
| been buffered in the previous call of readToChar() (see below). */ |
| return createFinalString( mxTextStrm->readLine() ); |
| } |
| catch( Exception& ) |
| { |
| mxTextStrm.clear(); |
| } |
| return OUString(); |
| } |
| |
| OUString TextInputStream::readToChar( sal_Unicode cChar, bool bIncludeChar ) |
| { |
| if( mxTextStrm.is() ) try |
| { |
| Sequence< sal_Unicode > aDelimiters( 1 ); |
| aDelimiters[ 0 ] = cChar; |
| /* Always get the delimiter character from the UNO text input stream. |
| In difference to this implementation, it will not return it in the |
| next call but silently skip it. If caller specifies to exclude the |
| character in this call, it will be returned in the next call of one |
| of the own member functions. The function createFinalString() adds |
| a character that has been buffered in the previous call. */ |
| OUString aString = createFinalString( mxTextStrm->readString( aDelimiters, sal_False ) ); |
| // remove last character from string and remember it for next call |
| if( !bIncludeChar && (aString.getLength() > 0) && (aString[ aString.getLength() - 1 ] == cChar) ) |
| { |
| mcPendingChar = cChar; |
| aString = aString.copy( 0, aString.getLength() - 1 ); |
| } |
| return aString; |
| } |
| catch( Exception& ) |
| { |
| mxTextStrm.clear(); |
| } |
| return OUString(); |
| } |
| |
| /*static*/ Reference< XTextInputStream > TextInputStream::createXTextInputStream( |
| const Reference< XComponentContext >& rxContext, const Reference< XInputStream >& rxInStrm, rtl_TextEncoding eTextEnc ) |
| { |
| Reference< XTextInputStream > xTextStrm; |
| const char* pcCharset = rtl_getBestMimeCharsetFromTextEncoding( eTextEnc); |
| OSL_ENSURE( pcCharset, "TextInputStream::createXTextInputStream - unsupported text encoding" ); |
| if( rxContext.is() && rxInStrm.is() && pcCharset ) try |
| { |
| Reference< XMultiServiceFactory > xFactory( rxContext->getServiceManager(), UNO_QUERY_THROW ); |
| Reference< XActiveDataSink > xDataSink( xFactory->createInstance( CREATE_OUSTRING( "com.sun.star.io.TextInputStream" ) ), UNO_QUERY_THROW ); |
| xDataSink->setInputStream( rxInStrm ); |
| xTextStrm.set( xDataSink, UNO_QUERY_THROW ); |
| xTextStrm->setEncoding( OUString::createFromAscii( pcCharset ) ); |
| } |
| catch( Exception& ) |
| { |
| } |
| return xTextStrm; |
| } |
| |
| // private -------------------------------------------------------------------- |
| |
| OUString TextInputStream::createFinalString( const OUString& rString ) |
| { |
| if( mcPendingChar == 0 ) |
| return rString; |
| |
| OUString aString = OUString( mcPendingChar ) + rString; |
| mcPendingChar = 0; |
| return aString; |
| } |
| |
| void TextInputStream::init( const Reference< XComponentContext >& rxContext, const Reference< XInputStream >& rxInStrm, rtl_TextEncoding eTextEnc ) |
| { |
| mcPendingChar = 0; |
| mxTextStrm = createXTextInputStream( rxContext, rxInStrm, eTextEnc ); |
| } |
| |
| // ============================================================================ |
| |
| } // namespace oox |