ISchemaObject.h

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//-*****************************************************************************
//
// Copyright (c) 2009-2011,
//  Sony Pictures Imageworks Inc. and
//  Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
//
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// met:
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// *       Redistributions in binary form must reproduce the above
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// Industrial Light & Magic, nor the names of their contributors may be used
// to endorse or promote products derived from this software without specific
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//-*****************************************************************************
 
#ifndef Alembic_Abc_ISchemaObject_h
#define Alembic_Abc_ISchemaObject_h
 
#include <Alembic/Abc/Foundation.h>
#include <Alembic/Abc/IObject.h>
#include <Alembic/Abc/ISchema.h>
#include <Alembic/Abc/Argument.h>
#include <Alembic/Abc/Base.h>
 
namespace Alembic {
namespace Abc {
namespace ALEMBIC_VERSION_NS {
 
//-*****************************************************************************
template <class SCHEMA>
class ISchemaObject : public IObject
{
public:
    //-*************************************************************************
    // TYPEDEFS AND IDENTIFIERS
    //-*************************************************************************
    typedef SCHEMA schema_type;
    typedef ISchemaObject<SCHEMA> this_type;

    static std::string getSchemaObjTitle()
    {
        return SCHEMA::getSchemaTitle() + std::string( ":" )
            + SCHEMA::getDefaultSchemaName();
    }
 
    static const char * getSchemaTitle()
    {
        return SCHEMA::getSchemaTitle();
    }

    static bool matches( const AbcA::MetaData &iMetaData,
                         SchemaInterpMatching iMatching = kStrictMatching )
    {
 
        if ( std::string() == getSchemaTitle() || iMatching == kNoMatching )
        {
            return true;
        }
 
 
        if ( iMatching == kStrictMatching )
        {
            return iMetaData.get( "schemaObjTitle" ) == getSchemaObjTitle() ||
                iMetaData.get( "schema" ) == getSchemaObjTitle();
        }
 
        if ( iMatching == kSchemaTitleMatching )
        {
            return iMetaData.get( "schema" ) == getSchemaTitle();
        }
 
        return false;
    }

    static bool matches( const AbcA::ObjectHeader &iHeader,
                         SchemaInterpMatching iMatching = kStrictMatching )
    {
        return matches( iHeader.getMetaData(), iMatching );
    }
 
 
    //-*************************************************************************
    // CONSTRUCTION, DESTRUCTION, ASSIGNMENT
    //-*************************************************************************

    ISchemaObject() {}

    ISchemaObject( const IObject & iParent,
                   const std::string &iName,
                   const Argument &iArg0 = Argument(),
                   const Argument &iArg1 = Argument() )
    : IObject( iParent, iName, GetErrorHandlerPolicyFromArgs( iArg0, iArg1 ) )
    {
        Arguments args;
        iArg0.setInto( args );
        iArg1.setInto( args );
 
        ALEMBIC_ABC_SAFE_CALL_BEGIN(
            "ISchemaObject::ISchemaObject( IObject )" );
 
        const AbcA::ObjectHeader &oheader = this->getHeader();
 
        ABCA_ASSERT( matches( oheader, args.getSchemaInterpMatching() ),
            "Incorrect match of schema: "
            << oheader.getMetaData().get( "schema" )
            << " to expected: "
            << getSchemaTitle() );
 
        // Make the schema.
        m_schema = SCHEMA( m_object->getProperties(),
                           SCHEMA::getDefaultSchemaName(),
                           this->getErrorHandlerPolicy(),
                           args.getSchemaInterpMatching() );
 
        ALEMBIC_ABC_SAFE_CALL_END_RESET();
    }

    ISchemaObject( const IObject & iObject,
                   const Argument &iArg0 = Argument(),
                   const Argument &iArg1 = Argument() )
    : IObject( iObject )
    {
        getErrorHandler().setPolicy(
            GetErrorHandlerPolicy( iObject, iArg0, iArg1 ) );
 
        ALEMBIC_ABC_SAFE_CALL_BEGIN(
            "ISchemaObject::ISchemaObject( wrap )" );
 
        const AbcA::ObjectHeader &oheader = this->getHeader();
 
        ABCA_ASSERT( matches( oheader.getMetaData(),
                     GetSchemaInterpMatching( iArg0, iArg1 ) ),
                     "Incorrect match of schema: "
                     << oheader.getMetaData().get( "schemaObjTitle" )
                     << " to expected: "
                     << getSchemaObjTitle() );
 
        m_schema = SCHEMA( this->getProperties(),
                           SCHEMA::getDefaultSchemaName(),
                           this->getErrorHandlerPolicy(),
                           GetSchemaInterpMatching( iArg0, iArg1 ) );
 
        ALEMBIC_ABC_SAFE_CALL_END_RESET();
    }
 
    // Deprecated in favor of the constructor above
    ISchemaObject( const IObject & iObject,
                   WrapExistingFlag iFlag,
                   const Argument &iArg0 = Argument(),
                   const Argument &iArg1 = Argument() )
    : IObject( iObject )
    {
        getErrorHandler().setPolicy(
            GetErrorHandlerPolicy( iObject, iArg0, iArg1 ) );
 
        ALEMBIC_ABC_SAFE_CALL_BEGIN(
            "ISchemaObject::ISchemaObject( wrapflag )" );
 
        const AbcA::ObjectHeader &oheader = this->getHeader();
 
        ABCA_ASSERT( matches( oheader.getMetaData(),
                     GetSchemaInterpMatching( iArg0, iArg1 ) ),
                     "Incorrect match of schema: "
                     << oheader.getMetaData().get( "schemaObjTitle" )
                     << " to expected: "
                     << getSchemaObjTitle() );
 
        m_schema = SCHEMA( this->getProperties(),
                           SCHEMA::getDefaultSchemaName(),
                           this->getErrorHandlerPolicy(),
                           GetSchemaInterpMatching( iArg0, iArg1 ) );
 
        ALEMBIC_ABC_SAFE_CALL_END_RESET();
    }
 
    //-*************************************************************************
    // ABC BASE MECHANISMS
    // These functions are used by Abc to deal with errors, rewrapping,
    // and so on.
    //-*************************************************************************

    SCHEMA &getSchema() { return m_schema; }
    const SCHEMA &getSchema() const { return m_schema; }

    void reset() { m_schema.reset(); IObject::reset(); }

    bool valid() const
    {
        return ( IObject::valid() && m_schema.valid() );
    }

    ALEMBIC_OVERRIDE_OPERATOR_BOOL( this_type::valid() );
 
protected:
    SCHEMA m_schema;
};
 
//-*****************************************************************************
// TEMPLATE AND INLINE FUNCTIONS
//-*****************************************************************************
 
inline ErrorHandler::Policy GetErrorHandlerPolicy( const Argument &iArg0,
                                                   const Argument &iArg1 )
{
    Arguments args;
    iArg0.setInto( args );
    iArg1.setInto( args );
    return args.getErrorHandlerPolicy();
}
 
} // End namespace ALEMBIC_VERSION_NS
 
using namespace ALEMBIC_VERSION_NS;
 
} // End namespace Abc
} // End namespace Alembic
 
#endif