private FieldConfig parseFieldConfig(Node fieldNode) throws ConfigException {
NamedNodeMap attr = fieldNode.getAttributes();
Node nameNode = attr.getNamedItem(XMLConfigConstant.NAME);
if (nameNode == null) {
throw new ConfigException(ErrorMsg.NO_NAME_PROPERTY_FOR_FIELD);
}
FieldConfig fieldConfig = new FieldConfig(nameNode.getNodeValue());
NodeList validateRule = fieldNode.getChildNodes();
if (validateRule == null || validateRule.getLength() == 0) {
return null;
}
for (int i = 0; i < validateRule.getLength(); i++) {
Node node = validateRule.item(i);
if (node.getNodeType() != Node.ELEMENT_NODE) {
continue;
}
AbstractValidator validator =
ValidatorRegistry.getInstance().getValidator(node.getNodeName());
if (validator == null) {
throw new ConfigException(ErrorMsg.NO_SUCH_VALIDATOR_ERROR + node.getNodeName());
} else {
fieldConfig.addRule(validator.parseRuleConfig(node));
}
}
return fieldConfig;
}
// Parse the group config.
private List<GroupConfig> parseGroupConfig(Element rootEle, List<FieldConfig> fieldConfigs)
throws ConfigException {
Map<String, FieldConfig> configMap = new HashMap<String, FieldConfig>();
for (FieldConfig config : fieldConfigs) {
configMap.put(config.getFieldName(), config);
}
List<GroupConfig> groupConfigs = new ArrayList<GroupConfig>();
NodeList groupsNode = rootEle.getElementsByTagName(XMLConfigConstant.ACTIONS);
if (groupsNode == null || groupsNode.getLength() == 0) {
return null;
}
NodeList groupList = groupsNode.item(0).getChildNodes();
for (int i = 0; i < groupList.getLength(); i++) {
Node groupNode = groupList.item(i);
if (XMLConfigConstant.XCASE.equals(groupNode.getNodeName())) {
GroupConfig groupConfig = parseGroup(configMap, groupNode);
if (groupConfig != null) {
groupConfigs.add(groupConfig);
}
}
}
return groupConfigs;
}