ISchema.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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//-*****************************************************************************
 
#ifndef Alembic_Abc_ISchema_h
#define Alembic_Abc_ISchema_h
 
#include <Alembic/Abc/Foundation.h>
#include <Alembic/Abc/OSchema.h>
#include <Alembic/Abc/ICompoundProperty.h>
 
namespace Alembic {
namespace Abc {
namespace ALEMBIC_VERSION_NS {
 
//-*****************************************************************************
//-*****************************************************************************
 
//-*****************************************************************************
template <class INFO>
class ISchema : public ICompoundProperty
{
public:
    //-*************************************************************************
    // TYPEDEFS AND IDENTIFIERS
    //-*************************************************************************
    typedef INFO info_type;
    typedef ISchema<INFO> this_type;

    static const char * getSchemaTitle()
    {
        return INFO::title();
    }

    static const char * getDefaultSchemaName()
    {
        return INFO::defaultName();
    }

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

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

    ISchema() {}

    ISchema( const ICompoundProperty &iParent,
             const std::string &iName,
             const Argument &iArg0 = Argument(),
             const Argument &iArg1 = Argument() )
    {
        init( iParent, iName, iArg0, iArg1 );
    }

    ISchema( const ICompoundProperty &iProperty,
             const Argument &iArg0 = Argument(),
             const Argument &iArg1 = Argument() )
    : ICompoundProperty( iProperty.getPtr(),
                         GetErrorHandlerPolicy( iProperty, iArg0, iArg1 ) )
    {
        ALEMBIC_ABC_SAFE_CALL_BEGIN( "ISchema::ISchema( wrap )" );
 
        const AbcA::PropertyHeader &pheader = this->getHeader();
 
        ABCA_ASSERT( matches( pheader,
            GetSchemaInterpMatching( iArg0, iArg1 ) ),
            "Incorrect match of schema: "
            << pheader.getMetaData().get( "schema" )
            << " to expected: "
            << INFO::title() );
 
        // not wrapped, we want to use the default name
        if ( !iProperty.getParent().valid() )
        {
            init( iProperty, getDefaultSchemaName(),
                  iArg0, iArg1 );
        }
 
        ALEMBIC_ABC_SAFE_CALL_END_RESET();
    }
 
    // Deprecated in favor of the constructor above
    ISchema( const ICompoundProperty &iProperty,
             WrapExistingFlag iFlag,
             const Argument &iArg0 = Argument(),
             const Argument &iArg1 = Argument() )
    {
      *this = ISchema( iProperty, iArg0, iArg1 );
    }

    //
    virtual ~ISchema() {}
 
private:
    void init( const ICompoundProperty & iParentObject,
               const std::string &iName,
               const Argument &iArg0,
               const Argument &iArg1 );
};
 
//-*****************************************************************************
// TEMPLATE AND INLINE FUNCTIONS
//-*****************************************************************************
template <class INFO>
void ISchema<INFO>::init( const ICompoundProperty & iParent,
                          const std::string &iName,
                          const Argument &iArg0,
                          const Argument &iArg1 )
{
    Arguments args;
    iArg0.setInto( args );
    iArg1.setInto( args );
 
    getErrorHandler().setPolicy( args.getErrorHandlerPolicy() );
 
    ALEMBIC_ABC_SAFE_CALL_BEGIN( "ISchema::ISchema::init()" );
 
    // Get actual reader for parent.
    ABCA_ASSERT( iParent,
                 "NULL parent passed into ISchema ctor" );
    AbcA::CompoundPropertyReaderPtr parent = iParent.getPtr();
    ABCA_ASSERT( parent, "NULL CompoundPropertyReaderPtr" );
 
    const AbcA::PropertyHeader *pheader = parent->getPropertyHeader( iName );
 
    ABCA_ASSERT( pheader != NULL,
                 "Nonexistent compound property: " << iName );
 
    // Check metadata for schema.
    ABCA_ASSERT( matches( *pheader, args.getSchemaInterpMatching() ),
 
                 "Incorrect match of schema: "
                 << pheader->getMetaData().get( "schema" )
                 << " to expected: "
                 << INFO::title() );
 
    // Get property.
    m_property = parent->getCompoundProperty( iName );
 
    ALEMBIC_ABC_SAFE_CALL_END_RESET();
}
 
} // End namespace ALEMBIC_VERSION_NS
 
using namespace ALEMBIC_VERSION_NS;
 
} // End namespace Abc
} // End namespace Alembic
 
#endif