public void parse(ParseContext context) throws IOException {
if (!enabled) {
context.parser().skipChildren();
return;
}
XContentParser parser = context.parser();
String currentFieldName = parser.currentName();
XContentParser.Token token = parser.currentToken();
if (token == XContentParser.Token.VALUE_NULL) {
// the object is null ("obj1" : null), simply bail
return;
}
Document restoreDoc = null;
if (nested.isNested()) {
Document nestedDoc = new Document();
// pre add the uid field if possible (id was already provided)
Fieldable uidField = context.doc().getFieldable(UidFieldMapper.NAME);
if (uidField != null) {
// we don't need to add it as a full uid field in nested docs, since we don't need
// versioning
// we also rely on this for UidField#loadVersion
// this is a deeply nested field
if (uidField.stringValue() != null) {
nestedDoc.add(
new Field(
UidFieldMapper.NAME,
uidField.stringValue(),
Field.Store.NO,
Field.Index.NOT_ANALYZED));
} else {
nestedDoc.add(
new Field(
UidFieldMapper.NAME,
((UidField) uidField).uid(),
Field.Store.NO,
Field.Index.NOT_ANALYZED));
}
}
// the type of the nested doc starts with __, so we can identify that its a nested one in
// filters
// note, we don't prefix it with the type of the doc since it allows us to execute a nested
// query
// across types (for example, with similar nested objects)
nestedDoc.add(
new Field(
TypeFieldMapper.NAME, nestedTypePath, Field.Store.NO, Field.Index.NOT_ANALYZED));
restoreDoc = context.switchDoc(nestedDoc);
context.addDoc(nestedDoc);
}
ContentPath.Type origPathType = context.path().pathType();
context.path().pathType(pathType);
// if we are at the end of the previous object, advance
if (token == XContentParser.Token.END_OBJECT) {
token = parser.nextToken();
}
if (token == XContentParser.Token.START_OBJECT) {
// if we are just starting an OBJECT, advance, this is the object we are parsing, we need the
// name first
token = parser.nextToken();
}
while (token != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.START_OBJECT) {
serializeObject(context, currentFieldName);
} else if (token == XContentParser.Token.START_ARRAY) {
serializeArray(context, currentFieldName);
} else if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.VALUE_NULL) {
serializeNullValue(context, currentFieldName);
} else if (token == null) {
throw new MapperParsingException(
"object mapping for ["
+ name
+ "] tried to parse as object, but got EOF, has a concrete value been provided to it?");
} else if (token.isValue()) {
serializeValue(context, currentFieldName, token);
}
token = parser.nextToken();
}
// restore the enable path flag
context.path().pathType(origPathType);
if (nested.isNested()) {
Document nestedDoc = context.switchDoc(restoreDoc);
if (nested.isIncludeInParent()) {
for (Fieldable field : nestedDoc.getFields()) {
if (field.name().equals(UidFieldMapper.NAME)
|| field.name().equals(TypeFieldMapper.NAME)) {
continue;
} else {
context.doc().add(field);
}
}
}
if (nested.isIncludeInRoot()) {
// don't add it twice, if its included in parent, and we are handling the master doc...
if (!(nested.isIncludeInParent() && context.doc() == context.rootDoc())) {
for (Fieldable field : nestedDoc.getFields()) {
if (field.name().equals(UidFieldMapper.NAME)
|| field.name().equals(TypeFieldMapper.NAME)) {
continue;
} else {
context.rootDoc().add(field);
}
}
}
}
}
}
