private void setImportIsolationPolicy(RegionFilterBuilder builder, SubsystemImportServiceHeader header) throws InvalidSyntaxException {
if (header == null)
return;
for (SubsystemImportServiceHeader.Clause clause : header.getClauses()) {
SubsystemImportServiceRequirement requirement = new SubsystemImportServiceRequirement(clause, this);
String policy = RegionFilter.VISIBLE_SERVICE_NAMESPACE;
String filter = requirement.getDirectives().get(SubsystemImportServiceRequirement.DIRECTIVE_FILTER);
builder.allow(policy, filter);
}
}