xref: /aoo4110/main/dbaccess/source/core/recovery/storagestream.cxx (revision b1cdbd2c)

/**************************************************************
 *
 * 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 "precompiled_dbaccess.hxx"

#include "storagestream.hxx"

/** === begin UNO includes === **/
#include <com/sun/star/embed/ElementModes.hpp>
/** === end UNO includes === **/

#include <tools/diagnose_ex.h>

//........................................................................
namespace dbaccess
{
//........................................................................

	/** === begin UNO using === **/
	using ::com::sun::star::uno::Reference;
	using ::com::sun::star::uno::XInterface;
	using ::com::sun::star::uno::UNO_QUERY;
	using ::com::sun::star::uno::UNO_QUERY_THROW;
	using ::com::sun::star::uno::UNO_SET_THROW;
	using ::com::sun::star::uno::Exception;
	using ::com::sun::star::uno::RuntimeException;
	using ::com::sun::star::uno::Any;
	using ::com::sun::star::uno::makeAny;
	using ::com::sun::star::uno::Sequence;
	using ::com::sun::star::uno::Type;
    using ::com::sun::star::embed::XStorage;
    using ::com::sun::star::io::XStream;
	/** === end UNO using === **/
    namespace ElementModes = ::com::sun::star::embed::ElementModes;

	//====================================================================
	//= StorageOutputStream
	//====================================================================
	//--------------------------------------------------------------------
    StorageOutputStream::StorageOutputStream(   const ::comphelper::ComponentContext& i_rContext,
                                                const Reference< XStorage >& i_rParentStorage,
                                                const ::rtl::OUString& i_rStreamName
                                             )
        :m_rContext( i_rContext )
    {
        ENSURE_OR_THROW( i_rParentStorage.is(), "illegal stream" );

        const Reference< XStream > xStream(
            i_rParentStorage->openStreamElement( i_rStreamName, ElementModes::READWRITE ), UNO_QUERY_THROW );
        m_xOutputStream.set( xStream->getOutputStream(), UNO_SET_THROW );
    }

	//--------------------------------------------------------------------
    StorageOutputStream::~StorageOutputStream()
    {
    }

	//--------------------------------------------------------------------
    void StorageOutputStream::close()
    {
        ENSURE_OR_RETURN_VOID( m_xOutputStream.is(), "already closed" );
        m_xOutputStream->closeOutput();
        m_xOutputStream.clear();

        // if you add additional functionality here, be aware that there are derived classes which
        // (legitimately) do not call this method here.
    }

	//====================================================================
	//= StorageInputStream
	//====================================================================
	//--------------------------------------------------------------------
    StorageInputStream::StorageInputStream( const ::comphelper::ComponentContext& i_rContext,
                                            const Reference< XStorage >& i_rParentStorage,
                                            const ::rtl::OUString& i_rStreamName
                                          )
        :m_rContext( i_rContext )
    {
        ENSURE_OR_THROW( i_rParentStorage.is(), "illegal stream" );

        const Reference< XStream > xStream(
            i_rParentStorage->openStreamElement( i_rStreamName, ElementModes::READ ), UNO_QUERY_THROW );
        m_xInputStream.set( xStream->getInputStream(), UNO_SET_THROW );
    }

	//--------------------------------------------------------------------
    StorageInputStream::~StorageInputStream()
    {
    }

	//--------------------------------------------------------------------
    void StorageInputStream::close()
    {
        ENSURE_OR_RETURN_VOID( m_xInputStream.is(), "already closed" );
        m_xInputStream->closeInput();
        m_xInputStream.clear();

        // if you add additional functionality here, be aware that there are derived classes which
        // (legitimately) do not call this method here.
    }

//........................................................................
} // namespace dbaccess
//........................................................................