BundleMetadata const& BundleLoader::loadLibrary( string const& path )
{
if ( isLibraryLoaded( path ) )
{
BundleInfoConstIterator it = m_LoadedBundles.find( path );
return it->second.metainfo->getBundleData();
}
typedef void ( *MetainfoFunc )( bundle::BundleMetainfo &info );
Poco::SharedLibrary *lib;
try
{
lib = new Poco::SharedLibrary( path );
}
catch ( Poco::Exception &e )
{
ostringstream msg;
msg << e.what() << " " << e.message() << " lib could not be loaded";
throw NotFoundException( msg.str() );
}
Metainfo *info = new Metainfo();
if ( lib->hasSymbol( "getBundleMetainfo" ) )
{
try
{
BundleInfo bundleInfo;
MetainfoFunc func = ( MetainfoFunc ) lib->getSymbol( "getBundleMetainfo" );
bundle::BundleMetainfo metainfo( *info );
func( metainfo );
bundleInfo.library = lib;
bundleInfo.metainfo = info;
bundleInfo.metainfo->setInstallDirectory( path );
bundleInfo.metainfo->cleanup();
m_LoadedBundles.insert( make_pair( path, bundleInfo ) );
}
catch ( Exception &e )
{
delete lib;
delete info;
throw e;
}
BundleMetadata const& meta = info->getBundleData();
if ( meta.getName() == "undefined" )
{
ostringstream msg;
msg << "bundle " << meta.getInstallDirectory() << " does not define a name";
throw NotFoundException( msg.str() );
}
return meta;
}
else
{
delete lib;
delete info;
ostringstream msg;
msg << "shared library " << path << " does not contain metadata";
throw NotFoundException( msg.str() );
}
}
