MetadataXML/metadataXMLPlugin.cpp

#include <maya/MStatus.h>
#include <maya/MFnPlugin.h>
#include <maya/adskDataStructureSerializer.h>
#include "structureSerializerXML.h"
#include <maya/adskDataAssociationsSerializer.h>
#include "associationsSerializerXML.h"
#include <maya/adskDataChannelSerializer.h>
#include "channelSerializerXML.h"
#include <maya/adskDataStreamSerializer.h>
#include "streamSerializerXML.h"
#include <libxml/globals.h>
#include <libxml/xmlreader.h>
#include <libxml/parser.h>
#include <libxml/tree.h>

//======================================================================
//
// This is what looks like an empty plug-in. The work happens outside
// the normal plug-in mechanism, enabling an XML serializer for metadata
// Structures and Streams. Since they are not part of the M* class
// mechanism they don't get registered like commands or nodes would.
//
// Since the serializers are all used on demand all the plug-in has to do
// is register and deregister it by creating and destroying the
// initializers to handle the serializer lifetime.
//
// In order to build this plug-in you will need libxml2. On Linux and Mac
// this is a standard library. On Windows you will need a local copy.
//
//======================================================================
//
// EXTRA INSTRUCTIONS
// ------------------
// If you do not have libxml2 already you can download and install it
// from the main site:
//
//      http://xmlsoft.org
//
// For Linux users you should already have the libraries and will only need to
// install the XML development kit to get the headers (probably libxml2-devel)
// and ensure the Makefile path points to the installation directory (by
// default it is /usr/include/libxml2).
//
// Windows users should modify their Visual Studio project to add the
// appropriate installation paths to the settings
//      'Additional Include Directories'
//  and
//      'Additional Library Directories'
// before building.
//
//======================================================================

using namespace adsk::Data;

//----------------------------------------------------------------------
//
//
static SerializerInitializer<StructureSerializer>*      _structureXMLInitializer    = NULL;
static SerializerInitializer<AssociationsSerializer>*   _associationsXMLInitializer = NULL;
static SerializerInitializer<ChannelSerializer>*        _channelXMLInitializer      = NULL;
static SerializerInitializer<StreamSerializer>*         _streamXMLInitializer       = NULL;

MStatus initializePlugin( MObject obj )
{ 
    MFnPlugin plugin ( obj, "Autodesk", "1.0", "Any" );

    // Constructors of the initializers will register the format types
    _structureXMLInitializer = new SerializerInitializer<StructureSerializer>( StructureSerializerXML::theFormat() );
    _associationsXMLInitializer = new SerializerInitializer<AssociationsSerializer>( AssociationsSerializerXML::theFormat() );
    _channelXMLInitializer = new SerializerInitializer<ChannelSerializer>( ChannelSerializerXML::theFormat() );
    _streamXMLInitializer = new SerializerInitializer<StreamSerializer>( StreamSerializerXML::theFormat() );
    return MS::kSuccess;
}

//======================================================================
//
MStatus uninitializePlugin( MObject obj )
{
    // Destructors of the initializers will deregister the format types
    if( _structureXMLInitializer )
    {
        delete _structureXMLInitializer;
        _structureXMLInitializer = NULL;
    }
    if( _associationsXMLInitializer )
    {
        delete _associationsXMLInitializer;
        _associationsXMLInitializer = NULL;
    }
    if( _channelXMLInitializer )
    {
        delete _channelXMLInitializer;
        _channelXMLInitializer = NULL;
    }
    if( _streamXMLInitializer )
    {
        delete _streamXMLInitializer;
        _streamXMLInitializer = NULL;
    }
    return MS::kSuccess;
}

//-
// ==================================================================
// Copyright 2015 Autodesk, Inc.  All rights reserved.
// 
// This computer source code  and related  instructions and comments are
// the unpublished confidential and proprietary information of Autodesk,
// Inc. and are  protected  under applicable  copyright and trade secret
// law. They may not  be disclosed to, copied or used by any third party
// without the prior written consent of Autodesk, Inc.
// ==================================================================
//+