/**************************************************************
 * 
 * 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.
 * 
 *************************************************************/


#ifndef INCLUDED_CURLINPUTSTREAM_HXX
#define INCLUDED_CURLINPUTSTREAM_HXX

#include <sal/types.h>
#include <rtl/ustring.hxx>
#include <cppuhelper/weak.hxx>
#include <com/sun/star/io/XInputStream.hpp>
#include <com/sun/star/io/XSeekable.hpp>


namespace http_dav_ucp
{

// -------------------------------------------------------------------
// CurlInputStream
// A simple XInputStream implementation provided specifically for use
// by the DAVSession::GET method.
// -------------------------------------------------------------------
class CurlInputStream : public ::com::sun::star::io::XInputStream,
						public ::com::sun::star::io::XSeekable,
						public ::cppu::OWeakObject
{
	private:
		com::sun::star::uno::Sequence< sal_Int8 > mInputBuffer;
		sal_Int64 mLen;
		sal_Int64 mPos;
        sal_Int64 mCapacity;

	public:
				 CurlInputStream( void );
		virtual ~CurlInputStream();

		// Add some data to the end of the stream
		void AddToStream( const char * inBuf, sal_Int32 inLen );

	// XInterface
	virtual com::sun::star::uno::Any SAL_CALL queryInterface(
										const ::com::sun::star::uno::Type & type )
							throw( ::com::sun::star::uno::RuntimeException );

	virtual void SAL_CALL acquire( void )
							throw ()
								{ OWeakObject::acquire(); }

	virtual void SAL_CALL release( void )
							throw()
								{ OWeakObject::release(); }


	// 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( void )
        		throw( ::com::sun::star::io::NotConnectedException,
               		   ::com::sun::star::io::IOException,
               		   ::com::sun::star::uno::RuntimeException );

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

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

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

	virtual sal_Int64 SAL_CALL getLength()
		throw( ::com::sun::star::io::IOException,
			   ::com::sun::star::uno::RuntimeException );
};

} // namespace http_dav_ucp

#endif // INCLUDED_CURLINPUTSTREAM_HXX