/**
* Serialize a single metadata field registry entry to xml
*
* @param context DSpace context
* @param xmlSerializer xml serializer
* @param mdField DSpace metadata field
* @throws SAXException if XML error
* @throws RegistryExportException if export error
* @throws SQLException if database error
* @throws IOException if IO error
*/
private static void saveType(Context context, XMLSerializer xmlSerializer, MetadataField mdField)
throws SAXException, RegistryExportException, SQLException, IOException {
// If we haven't been given a field, it's an error
if (mdField == null) {
throw new RegistryExportException("no field to export");
}
// Get the data from the metadata field
String schemaName = getSchemaName(context, mdField);
String element = mdField.getElement();
String qualifier = mdField.getQualifier();
String scopeNote = mdField.getScopeNote();
// We must have a schema and element
if (schemaName == null || element == null) {
throw new RegistryExportException("incomplete field information");
}
// Output the parent tag
xmlSerializer.startElement("dc-type", null);
// Output the schema name
xmlSerializer.startElement("schema", null);
xmlSerializer.characters(schemaName.toCharArray(), 0, schemaName.length());
xmlSerializer.endElement("schema");
// Output the element
xmlSerializer.startElement("element", null);
xmlSerializer.characters(element.toCharArray(), 0, element.length());
xmlSerializer.endElement("element");
// Output the qualifier, if present
if (qualifier != null) {
xmlSerializer.startElement("qualifier", null);
xmlSerializer.characters(qualifier.toCharArray(), 0, qualifier.length());
xmlSerializer.endElement("qualifier");
} else {
xmlSerializer.comment("unqualified");
}
// Output the scope note, if present
if (scopeNote != null) {
xmlSerializer.startElement("scope_note", null);
xmlSerializer.characters(scopeNote.toCharArray(), 0, scopeNote.length());
xmlSerializer.endElement("scope_note");
} else {
xmlSerializer.comment("no scope note");
}
xmlSerializer.endElement("dc-type");
}
protected void comment(Element element) throws SAXException, IOException {
if (serializer instanceof XMLSerializer) {
NodeList children = element.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
Node text = (Node) children.item(i);
((XMLSerializer) serializer).comment(text.getNodeValue());
}
}
}