/** Creates instances of the fields that the current field should be copied to */
private static void parseCopyFields(
ParseContext context, FieldMapper fieldMapper, List<String> copyToFields) throws IOException {
if (!context.isWithinCopyTo() && copyToFields.isEmpty() == false) {
context = context.createCopyToContext();
for (String field : copyToFields) {
// In case of a hierarchy of nested documents, we need to figure out
// which document the field should go to
ParseContext.Document targetDoc = null;
for (ParseContext.Document doc = context.doc(); doc != null; doc = doc.getParent()) {
if (field.startsWith(doc.getPrefix())) {
targetDoc = doc;
break;
}
}
assert targetDoc != null;
final ParseContext copyToContext;
if (targetDoc == context.doc()) {
copyToContext = context;
} else {
copyToContext = context.switchDoc(targetDoc);
}
parseCopy(field, copyToContext);
}
}
}
private Fields generateTermVectorsFromDoc(TermVectorRequest request, boolean doAllFields)
throws IOException {
// parse the document, at the moment we do update the mapping, just like percolate
ParsedDocument parsedDocument =
parseDocument(indexShard.shardId().getIndex(), request.type(), request.doc());
// select the right fields and generate term vectors
ParseContext.Document doc = parsedDocument.rootDoc();
Collection<String> seenFields = new HashSet<>();
Collection<GetField> getFields = new HashSet<>();
for (IndexableField field : doc.getFields()) {
FieldMapper fieldMapper = indexShard.mapperService().smartNameFieldMapper(field.name());
if (seenFields.contains(field.name())) {
continue;
} else {
seenFields.add(field.name());
}
if (!isValidField(fieldMapper)) {
continue;
}
if (request.selectedFields() == null
&& !doAllFields
&& !fieldMapper.fieldType().storeTermVectors()) {
continue;
}
if (request.selectedFields() != null && !request.selectedFields().contains(field.name())) {
continue;
}
String[] values = doc.getValues(field.name());
getFields.add(new GetField(field.name(), Arrays.asList((Object[]) values)));
}
return generateTermVectors(getFields, request.offsets(), request.perFieldAnalyzer());
}
static ObjectMapper parseObject(ParseContext context, ObjectMapper mapper, boolean atRoot)
throws IOException {
if (mapper.isEnabled() == false) {
context.parser().skipChildren();
return null;
}
XContentParser parser = context.parser();
String currentFieldName = parser.currentName();
if (atRoot
&& MapperService.isMetadataField(currentFieldName)
&& Version.indexCreated(context.indexSettings()).onOrAfter(Version.V_2_0_0_beta1)) {
throw new MapperParsingException(
"Field ["
+ currentFieldName
+ "] is a metadata field and cannot be added inside a document. Use the index API request parameters.");
}
XContentParser.Token token = parser.currentToken();
if (token == XContentParser.Token.VALUE_NULL) {
// the object is null ("obj1" : null), simply bail
return null;
}
if (token.isValue()) {
throw new MapperParsingException(
"object mapping for ["
+ mapper.name()
+ "] tried to parse field ["
+ currentFieldName
+ "] as object, but found a concrete value");
}
ObjectMapper.Nested nested = mapper.nested();
if (nested.isNested()) {
context = context.createNestedContext(mapper.fullPath());
ParseContext.Document nestedDoc = context.doc();
ParseContext.Document parentDoc = nestedDoc.getParent();
// pre add the uid field if possible (id was already provided)
IndexableField uidField = parentDoc.getField(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
nestedDoc.add(
new Field(
UidFieldMapper.NAME,
uidField.stringValue(),
UidFieldMapper.Defaults.NESTED_FIELD_TYPE));
}
// 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,
mapper.nestedTypePathAsString(),
TypeFieldMapper.Defaults.FIELD_TYPE));
}
// 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();
}
ObjectMapper update = null;
while (token != XContentParser.Token.END_OBJECT) {
ObjectMapper newUpdate = null;
if (token == XContentParser.Token.START_OBJECT) {
newUpdate = parseObject(context, mapper, currentFieldName);
} else if (token == XContentParser.Token.START_ARRAY) {
newUpdate = parseArray(context, mapper, currentFieldName);
} else if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.VALUE_NULL) {
parseNullValue(context, mapper, currentFieldName);
} else if (token == null) {
throw new MapperParsingException(
"object mapping for ["
+ mapper.name()
+ "] tried to parse field ["
+ currentFieldName
+ "] as object, but got EOF, has a concrete value been provided to it?");
} else if (token.isValue()) {
newUpdate = parseValue(context, mapper, currentFieldName, token);
}
token = parser.nextToken();
if (newUpdate != null) {
if (update == null) {
update = newUpdate;
} else {
update = update.merge(newUpdate, false);
}
}
}
// restore the enable path flag
if (nested.isNested()) {
ParseContext.Document nestedDoc = context.doc();
ParseContext.Document parentDoc = nestedDoc.getParent();
if (nested.isIncludeInParent()) {
for (IndexableField field : nestedDoc.getFields()) {
if (field.name().equals(UidFieldMapper.NAME)
|| field.name().equals(TypeFieldMapper.NAME)) {
continue;
} else {
parentDoc.add(field);
}
}
}
if (nested.isIncludeInRoot()) {
ParseContext.Document rootDoc = context.rootDoc();
// don't add it twice, if its included in parent, and we are handling the master doc...
if (!nested.isIncludeInParent() || parentDoc != rootDoc) {
for (IndexableField field : nestedDoc.getFields()) {
if (field.name().equals(UidFieldMapper.NAME)
|| field.name().equals(TypeFieldMapper.NAME)) {
continue;
} else {
rootDoc.add(field);
}
}
}
}
}
return update;
}
