@Override
public Mapper.Builder<?, ?> parse(
String name, Map<String, Object> node, ParserContext parserContext)
throws MapperParsingException {
ContentPath.Type pathType = null;
AbstractFieldMapper.Builder mainFieldBuilder = null;
List<AbstractFieldMapper.Builder> fields = null;
String firstType = null;
for (Iterator<Map.Entry<String, Object>> iterator = node.entrySet().iterator();
iterator.hasNext(); ) {
Map.Entry<String, Object> entry = iterator.next();
String fieldName = Strings.toUnderscoreCase(entry.getKey());
Object fieldNode = entry.getValue();
if (fieldName.equals("path")
&& parserContext.indexVersionCreated().before(Version.V_2_0_0)) {
pathType = parsePathType(name, fieldNode.toString());
iterator.remove();
} else if (fieldName.equals("fields")) {
Map<String, Object> fieldsNode = (Map<String, Object>) fieldNode;
for (Iterator<Map.Entry<String, Object>> fieldsIterator =
fieldsNode.entrySet().iterator();
fieldsIterator.hasNext(); ) {
Map.Entry<String, Object> entry1 = fieldsIterator.next();
String propName = entry1.getKey();
Map<String, Object> propNode = (Map<String, Object>) entry1.getValue();
String type;
Object typeNode = propNode.get("type");
if (typeNode != null) {
type = typeNode.toString();
if (firstType == null) {
firstType = type;
}
} else {
throw new MapperParsingException(
"No type specified for property [" + propName + "]");
}
Mapper.TypeParser typeParser = parserContext.typeParser(type);
if (typeParser == null) {
throw new MapperParsingException(
"No handler for type [" + type + "] declared on field [" + fieldName + "]");
}
if (propName.equals(name)) {
mainFieldBuilder =
(AbstractFieldMapper.Builder)
typeParser.parse(propName, propNode, parserContext);
fieldsIterator.remove();
} else {
if (fields == null) {
fields = new ArrayList<>(2);
}
fields.add(
(AbstractFieldMapper.Builder)
typeParser.parse(propName, propNode, parserContext));
fieldsIterator.remove();
}
}
fieldsNode.remove("type");
DocumentMapperParser.checkNoRemainingFields(
fieldName, fieldsNode, parserContext.indexVersionCreated());
iterator.remove();
}
}
if (mainFieldBuilder == null) {
if (fields == null) {
// No fields at all were specified in multi_field, so lets return a non indexed string
// field.
return new StringFieldMapper.Builder(name).index(false);
}
Mapper.TypeParser typeParser = parserContext.typeParser(firstType);
if (typeParser == null) {
// The first multi field's type is unknown
mainFieldBuilder = new StringFieldMapper.Builder(name).index(false);
} else {
Mapper.Builder substitute =
typeParser.parse(name, Collections.<String, Object>emptyMap(), parserContext);
if (substitute instanceof AbstractFieldMapper.Builder) {
mainFieldBuilder = ((AbstractFieldMapper.Builder) substitute).index(false);
} else {
// The first multi isn't a core field type
mainFieldBuilder = new StringFieldMapper.Builder(name).index(false);
}
}
}
if (fields != null && pathType != null) {
for (Mapper.Builder field : fields) {
mainFieldBuilder.addMultiField(field);
}
mainFieldBuilder.multiFieldPathType(pathType);
} else if (fields != null) {
for (Mapper.Builder field : fields) {
mainFieldBuilder.addMultiField(field);
}
} else if (pathType != null) {
mainFieldBuilder.multiFieldPathType(pathType);
}
return mainFieldBuilder;
}
public static boolean parseMultiField(
AbstractFieldMapper.Builder builder,
String name,
Mapper.TypeParser.ParserContext parserContext,
String propName,
Object propNode) {
if (propName.equals("path") && parserContext.indexVersionCreated().before(Version.V_2_0_0)) {
builder.multiFieldPathType(parsePathType(name, propNode.toString()));
return true;
} else if (propName.equals("fields")) {
final Map<String, Object> multiFieldsPropNodes;
if (propNode instanceof List && ((List<?>) propNode).isEmpty()) {
multiFieldsPropNodes = Collections.emptyMap();
} else if (propNode instanceof Map) {
multiFieldsPropNodes = (Map<String, Object>) propNode;
} else {
throw new MapperParsingException(
"Expected map for property [fields] on field ["
+ propNode
+ "] or "
+ "["
+ propName
+ "] but got a "
+ propNode.getClass());
}
for (Map.Entry<String, Object> multiFieldEntry : multiFieldsPropNodes.entrySet()) {
String multiFieldName = multiFieldEntry.getKey();
if (!(multiFieldEntry.getValue() instanceof Map)) {
throw new MapperParsingException(
"Illegal field [" + multiFieldName + "], only fields can be specified inside fields");
}
@SuppressWarnings("unchecked")
Map<String, Object> multiFieldNodes = (Map<String, Object>) multiFieldEntry.getValue();
String type;
Object typeNode = multiFieldNodes.get("type");
if (typeNode != null) {
type = typeNode.toString();
} else {
throw new MapperParsingException(
"No type specified for property [" + multiFieldName + "]");
}
if (type.equals(ObjectMapper.CONTENT_TYPE)
|| type.equals(ObjectMapper.NESTED_CONTENT_TYPE)) {
throw new MapperParsingException("Type [" + type + "] cannot be used in multi field");
}
Mapper.TypeParser typeParser = parserContext.typeParser(type);
if (typeParser == null) {
throw new MapperParsingException(
"No handler for type [" + type + "] declared on field [" + multiFieldName + "]");
}
builder.addMultiField(typeParser.parse(multiFieldName, multiFieldNodes, parserContext));
multiFieldNodes.remove("type");
DocumentMapperParser.checkNoRemainingFields(
propName, multiFieldNodes, parserContext.indexVersionCreated());
}
return true;
}
return false;
}
