xref: /aoo4110/main/ucb/source/ucp/odma/odma_inputstream.hxx (revision b1cdbd2c)

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 *
 * 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
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 * 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
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#ifndef ODMA_INPUTSTREAM_HXX
#define ODMA_INPUTSTREAM_HXX

#include <osl/mutex.hxx>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XStream.hpp>
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XTruncate.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <cppuhelper/implbase5.hxx>

#include "rtl/ref.hxx"

namespace ucbhelper
{
	class Content;
}
namespace odma
{
	typedef ::cppu::WeakImplHelper5<	::com::sun::star::io::XInputStream,
										::com::sun::star::io::XStream,
										::com::sun::star::io::XTruncate,
										::com::sun::star::io::XSeekable,
										::com::sun::star::io::XOutputStream> OOdmaStreamBase;

	class ContentProvider;
	class ContentProperties;
	class OOdmaStream : public OOdmaStreamBase
	{
		::osl::Mutex	m_aMutex;
		::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream>	m_xOutput;
		::com::sun::star::uno::Reference< ::com::sun::star::io::XTruncate>		m_xTruncate;
		::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream>	m_xInput;
		::com::sun::star::uno::Reference< ::com::sun::star::io::XSeekable>		m_xInputSeek;

		::rtl::Reference<ContentProperties>	m_aProp;
		::ucbhelper::Content*		        m_pContent;
		ContentProvider*				    m_pProvider;
		sal_Bool						    m_bInputStreamCalled;
		sal_Bool						    m_bOutputStreamCalled;
		sal_Bool						    m_bModified;

		void ensureInputStream()  throw( ::com::sun::star::io::IOException );
		void ensureOutputStream()  throw( ::com::sun::star::io::IOException );
		void SAL_CALL closeStream() throw(	::com::sun::star::io::NotConnectedException,
											::com::sun::star::io::IOException,
											::com::sun::star::uno::RuntimeException );
	public:
		OOdmaStream(::ucbhelper::Content* _pContent,
					ContentProvider* _pProvider,
					const ::rtl::Reference<ContentProperties>& _rProp);
		virtual ~OOdmaStream();
		// com::sun::star::io::XInputStream
		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);

		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);

		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);

		virtual sal_Int32 SAL_CALL available(  )
			throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);

		virtual void SAL_CALL closeInput(  )
			throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException);

		// com::sun::star::io::XStream
		virtual com::sun::star::uno::Reference< com::sun::star::io::XInputStream > SAL_CALL getInputStream(  ) throw( com::sun::star::uno::RuntimeException );
		virtual com::sun::star::uno::Reference< com::sun::star::io::XOutputStream > SAL_CALL getOutputStream(  ) throw( com::sun::star::uno::RuntimeException );

		// com::sun::star::io::XOutputStream
		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);

		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);
        void SAL_CALL closeOutput()
					throw( com::sun::star::io::NotConnectedException,
						   com::sun::star::io::IOException,
						   com::sun::star::uno::RuntimeException );
		// XTruncate
		virtual void SAL_CALL truncate( void )
			throw( com::sun::star::io::IOException,
				   com::sun::star::uno::RuntimeException );
		// XSeekable
		void SAL_CALL seek(sal_Int64 location )
			throw( com::sun::star::lang::IllegalArgumentException,
				   com::sun::star::io::IOException,
				   com::sun::star::uno::RuntimeException );

		sal_Int64 SAL_CALL getPosition()
			throw( com::sun::star::io::IOException,
				   com::sun::star::uno::RuntimeException );

		sal_Int64 SAL_CALL getLength()
			throw( com::sun::star::io::IOException,
				   com::sun::star::uno::RuntimeException );
	};
}
#endif // ODMA_INPUTSTREAM_HXX