@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append(getClass().getSimpleName()).append("\n");
if (_initMessages.isEmpty() == false) {
sb.append("Initialization message:\n");
_initMessages.appendTo(sb);
}
sb.append("Validators:\n");
for (Map.Entry<Object, List<Validator>> e : _cache.entrySet()) {
sb.append(" ");
Object key = e.getKey();
if (key instanceof RecordDataSchema.Field) {
sb.append(((RecordDataSchema.Field) key).getName()).append(" (field)");
} else if (key instanceof NamedDataSchema) {
sb.append(((NamedDataSchema) key).getFullName()).append(" (named schema)");
} else {
sb.append(key.toString());
}
sb.append("\n");
for (Validator v : e.getValue()) {
sb.append(" ").append(v).append("\n");
}
}
return sb.toString();
}
protected void checkMessageListForErrorsAndThrowDataTranslationException()
throws DataTranslationException {
if (_messageList.isEmpty() == false) {
Object[] firstErrorPath = _messageList.get(0).getPath();
throw new DataTranslationException(
"Error processing " + pathToString(Arrays.asList(firstErrorPath)), _messageList);
}
}
/**
* Initialize the {@link DataSchemaAnnotationValidator} with the provided {@link DataSchema} and
* key to {@link Validator} class map.
*
* <p>This method causes the "validate" properties of the schema and referenced schemas to be
* parsed and appropriate instances of {@link Validator}'s to be constructed.
*
* <p>This method does not throw an exception if there is an initialization error. The client
* should check the return value for initialization errors.
*
* @param schema to be parsed to compute the {@link Validator}'s that have to be created.
* @param classMap provides the map of the keys to {@link Validator}s that is looked up first
* before looking for classes with names derived from the key.
* @return true if initialization is successful, else return false, additional information may be
* obtained using {@link #getInitMessages()}.
*/
public boolean init(DataSchema schema, Map<String, Class<? extends Validator>> classMap) {
_initMessages.clear();
_schema = schema;
_classMap = classMap;
_cache = cacheValidators(_schema);
return isInitOk();
}
@Override
public void appendMessage(String format, Object... args) {
_messageList.add(new Message(_path.toArray(), format, args));
}
private void addMessage(List<String> path, boolean error, String format, Object... args) {
_initMessages.add(new Message(path.toArray(), error, format, args));
}
/**
* Return whether initialization is successful.
*
* @return true if initialization is successful.
*/
public boolean isInitOk() {
return _initMessages.isError() == false;
}