ErrorSource.h

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/*
// $Id: //open/dev/fennel/exec/ErrorSource.h#7 $
// Fennel is a library of data storage and processing components.
// Copyright (C) 2005-2009 The Eigenbase Project
// Copyright (C) 2005-2009 SQLstream, Inc.
// Copyright (C) 2005-2009 LucidEra, Inc.
// Portions Copyright (C) 1999-2009 John V. Sichi
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 of the License, or (at your option)
// any later version approved by The Eigenbase Project.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef Fennel_ErrorSource_Included
#define Fennel_ErrorSource_Included

#include "fennel/exec/ErrorTarget.h"
#include "fennel/tuple/TupleAccessor.h"

#include <sstream>

FENNEL_BEGIN_NAMESPACE

class FENNEL_EXEC_EXPORT ErrorSource
{
    SharedErrorTarget pErrorTarget;
    std::string name;

    TupleAccessor errorAccessor;

    boost::shared_ptr<FixedBuffer> pErrorBuf;

protected:
    explicit ErrorSource();

    explicit ErrorSource(
        SharedErrorTarget pErrorTarget,
        const std::string &name);

public:
    virtual ~ErrorSource();

    virtual void initErrorSource(
        SharedErrorTarget pErrorTarget,
        const std::string &name);

    void postError(
        ErrorLevel level, const std::string &message,
        void *address, long capacity, int index);

    void postError(
        ErrorLevel level, const std::string &message,
        const TupleDescriptor &errorDesc, const TupleData &errorTuple,
        int index);

    bool hasTarget() const
    {
        return pErrorTarget.get() ? true : false;
    }

    ErrorTarget &getErrorTarget() const
    {
        assert(hasTarget());
        return *(pErrorTarget.get());
    }

    SharedErrorTarget getSharedErrorTarget() const
    {
        return pErrorTarget;
    }

    std::string getErrorSourceName() const
    {
        return name;
    }

    void setErrorSourceName(std::string const& n)
    {
        name = n;
    }

    void disableTarget();
};

FENNEL_END_NAMESPACE

#endif

// End ErrorSource.h

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