}
String dialectName = this.defaultDialect;
// see if this packageDescr overrides the current default dialect
for ( Iterator it = packageDescr.getAttributes().iterator(); it.hasNext(); ) {
AttributeDescr value = (AttributeDescr) it.next();
if ( "dialect".equals( value.getName() ) ) {
dialectName = value.getValue();
break;
}
}
PackageRegistry pkgRegistry = this.pkgRegistryMap.get( packageDescr.getNamespace() );
if ( pkgRegistry == null ) {
// initialise the package and namespace if it hasn't been used before
pkgRegistry = newPackage( packageDescr );
} else {
// merge into existing package
mergePackage( packageDescr );
}
// set the default dialect for this package
pkgRegistry.setDialect( dialectName );
// only try to compile if there are no parse errors
if ( !hasErrors() ) {
if ( !packageDescr.getFunctions().isEmpty() ) {
for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
FunctionDescr functionDescr = (FunctionDescr) it.next();
if ( isEmpty( functionDescr.getNamespace() ) ) {
// make sure namespace is set on components
functionDescr.setNamespace( packageDescr.getNamespace() );
}
if ( isEmpty( functionDescr.getDialect() ) ) {
// make sure namespace is set on components
functionDescr.setDialect( pkgRegistry.getDialect() );
}
preCompileAddFunction( functionDescr );
}
// iterate and compile
for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
// inherit the dialect from the package
FunctionDescr functionDescr = (FunctionDescr) it.next();
addFunction( functionDescr );
}
// We need to compile all the functions now, so scripting
// languages like mvel can find them
compileAll();
for ( final Iterator it = packageDescr.getFunctions().iterator(); it.hasNext(); ) {
FunctionDescr functionDescr = (FunctionDescr) it.next();
postCompileAddFunction( functionDescr );
}
}
// iterate and compile
for ( final Iterator it = packageDescr.getRules().iterator(); it.hasNext(); ) {
RuleDescr ruleDescr = (RuleDescr) it.next();
if ( isEmpty( ruleDescr.getNamespace() ) ) {
// make sure namespace is set on components
ruleDescr.setNamespace( packageDescr.getNamespace() );
}
Map<String, AttributeDescr> pkgAttributes = packageAttributes.get( packageDescr.getNamespace() );
inheritPackageAttributes( pkgAttributes,
ruleDescr );
if ( isEmpty( ruleDescr.getDialect() ) ) {
ruleDescr.addAttribute( new AttributeDescr( "dialect",
pkgRegistry.getDialect() ) );
}
addRule( ruleDescr );
}
}