private void serializeArray(ParseContext context, String lastFieldName) throws IOException {
Mapper mapper = mappers.get(lastFieldName);
if (mapper != null && mapper instanceof ArrayValueMapperParser) {
mapper.parse(context);
} else {
XContentParser parser = context.parser();
XContentParser.Token token;
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
if (token == XContentParser.Token.START_OBJECT) {
serializeObject(context, lastFieldName);
} else if (token == XContentParser.Token.START_ARRAY) {
serializeArray(context, lastFieldName);
} else if (token == XContentParser.Token.FIELD_NAME) {
lastFieldName = parser.currentName();
} else if (token == XContentParser.Token.VALUE_NULL) {
serializeNullValue(context, lastFieldName);
} else {
serializeValue(context, lastFieldName, token);
}
}
}
}
private void serializeValue(
final ParseContext context, String currentFieldName, XContentParser.Token token)
throws IOException {
if (currentFieldName == null) {
throw new MapperParsingException(
"object mapping ["
+ name
+ "] trying to serialize a value with no field associated with it, current value ["
+ context.parser().textOrNull()
+ "]");
}
Mapper mapper = mappers.get(currentFieldName);
if (mapper != null) {
mapper.parse(context);
return;
}
Dynamic dynamic = this.dynamic;
if (dynamic == null) {
dynamic = context.root().dynamic();
}
if (dynamic == Dynamic.STRICT) {
throw new StrictDynamicMappingException(currentFieldName);
}
if (dynamic == Dynamic.FALSE) {
return;
}
// we sync here since we don't want to add this field twice to the document mapper
// its not the end of the world, since we add it to the mappers once we create it
// so next time we won't even get here for this field
boolean newMapper = false;
synchronized (mutex) {
mapper = mappers.get(currentFieldName);
if (mapper == null) {
newMapper = true;
BuilderContext builderContext = new BuilderContext(context.indexSettings(), context.path());
if (token == XContentParser.Token.VALUE_STRING) {
boolean resolved = false;
// do a quick test to see if its fits a dynamic template, if so, use it.
// we need to do it here so we can handle things like attachment templates, where calling
// text (to see if its a date) causes the binary value to be cleared
if (!resolved) {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "string", null);
if (builder != null) {
mapper = builder.build(builderContext);
resolved = true;
}
}
if (!resolved && context.parser().textLength() == 0) {
// empty string with no mapping, treat it like null value
return;
}
if (!resolved && context.root().dateDetection()) {
String text = context.parser().text();
// a safe check since "1" gets parsed as well
if (text.contains(":") || text.contains("-") || text.contains("/")) {
for (FormatDateTimeFormatter dateTimeFormatter :
context.root().dynamicDateTimeFormatters()) {
try {
dateTimeFormatter.parser().parseMillis(text);
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "date");
if (builder == null) {
builder = dateField(currentFieldName).dateTimeFormatter(dateTimeFormatter);
}
mapper = builder.build(builderContext);
resolved = true;
break;
} catch (Exception e) {
// failure to parse this, continue
}
}
}
}
if (!resolved && context.root().numericDetection()) {
String text = context.parser().text();
try {
Long.parseLong(text);
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "long");
if (builder == null) {
builder = longField(currentFieldName);
}
mapper = builder.build(builderContext);
resolved = true;
} catch (Exception e) {
// not a long number
}
if (!resolved) {
try {
Double.parseDouble(text);
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "double");
if (builder == null) {
builder = doubleField(currentFieldName);
}
mapper = builder.build(builderContext);
resolved = true;
} catch (Exception e) {
// not a long number
}
}
}
// DON'T do automatic ip detection logic, since it messes up with docs that have hosts and
// ips
// check if its an ip
// if (!resolved && text.indexOf('.') != -1) {
// try {
// IpFieldMapper.ipToLong(text);
// XContentMapper.Builder builder =
// context.root().findTemplateBuilder(context, currentFieldName, "ip");
// if (builder == null) {
// builder = ipField(currentFieldName);
// }
// mapper = builder.build(builderContext);
// resolved = true;
// } catch (Exception e) {
// // failure to parse, not ip...
// }
// }
if (!resolved) {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "string");
if (builder == null) {
builder = stringField(currentFieldName);
}
mapper = builder.build(builderContext);
}
} else if (token == XContentParser.Token.VALUE_NUMBER) {
XContentParser.NumberType numberType = context.parser().numberType();
if (numberType == XContentParser.NumberType.INT) {
if (context.parser().estimatedNumberType()) {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "long");
if (builder == null) {
builder = longField(currentFieldName);
}
mapper = builder.build(builderContext);
} else {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "integer");
if (builder == null) {
builder = integerField(currentFieldName);
}
mapper = builder.build(builderContext);
}
} else if (numberType == XContentParser.NumberType.LONG) {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "long");
if (builder == null) {
builder = longField(currentFieldName);
}
mapper = builder.build(builderContext);
} else if (numberType == XContentParser.NumberType.FLOAT) {
if (context.parser().estimatedNumberType()) {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "double");
if (builder == null) {
builder = doubleField(currentFieldName);
}
mapper = builder.build(builderContext);
} else {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "float");
if (builder == null) {
builder = floatField(currentFieldName);
}
mapper = builder.build(builderContext);
}
} else if (numberType == XContentParser.NumberType.DOUBLE) {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "double");
if (builder == null) {
builder = doubleField(currentFieldName);
}
mapper = builder.build(builderContext);
}
} else if (token == XContentParser.Token.VALUE_BOOLEAN) {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "boolean");
if (builder == null) {
builder = booleanField(currentFieldName);
}
mapper = builder.build(builderContext);
} else {
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, null);
if (builder != null) {
mapper = builder.build(builderContext);
} else {
// TODO how do we identify dynamically that its a binary value?
throw new ElasticSearchIllegalStateException(
"Can't handle serializing a dynamic type with content token ["
+ token
+ "] and field name ["
+ currentFieldName
+ "]");
}
}
putMapper(mapper);
context.addedMapper();
}
}
if (newMapper) {
mapper.traverse(
new FieldMapperListener() {
@Override
public void fieldMapper(FieldMapper fieldMapper) {
context.docMapper().addFieldMapper(fieldMapper);
}
});
}
mapper.parse(context);
}
private void serializeObject(final ParseContext context, String currentFieldName)
throws IOException {
if (currentFieldName == null) {
throw new MapperParsingException(
"object mapping ["
+ name
+ "] trying to serialize an object with no field associated with it, current value ["
+ context.parser().textOrNull()
+ "]");
}
context.path().add(currentFieldName);
Mapper objectMapper = mappers.get(currentFieldName);
if (objectMapper != null) {
objectMapper.parse(context);
} else {
Dynamic dynamic = this.dynamic;
if (dynamic == null) {
dynamic = context.root().dynamic();
}
if (dynamic == Dynamic.STRICT) {
throw new StrictDynamicMappingException(currentFieldName);
} else if (dynamic == Dynamic.TRUE) {
// we sync here just so we won't add it twice. Its not the end of the world
// to sync here since next operations will get it before
boolean newMapper = false;
synchronized (mutex) {
objectMapper = mappers.get(currentFieldName);
if (objectMapper == null) {
newMapper = true;
Mapper.Builder builder =
context.root().findTemplateBuilder(context, currentFieldName, "object");
if (builder == null) {
builder =
MapperBuilders.object(currentFieldName)
.enabled(true)
.dynamic(dynamic)
.pathType(pathType);
}
// remove the current field name from path, since the object builder adds it as well...
context.path().remove();
BuilderContext builderContext =
new BuilderContext(context.indexSettings(), context.path());
objectMapper = builder.build(builderContext);
putMapper(objectMapper);
// now re add it
context.path().add(currentFieldName);
context.addedMapper();
}
}
// traverse and parse outside of the mutex
if (newMapper) {
// we need to traverse in case we have a dynamic template and need to add field mappers
// introduced by it
objectMapper.traverse(
new FieldMapperListener() {
@Override
public void fieldMapper(FieldMapper fieldMapper) {
context.docMapper().addFieldMapper(fieldMapper);
}
});
objectMapper.traverse(
new ObjectMapperListener() {
@Override
public void objectMapper(ObjectMapper objectMapper) {
context.docMapper().addObjectMapper(objectMapper);
}
});
}
// now, parse it
objectMapper.parse(context);
} else {
// not dynamic, read everything up to end object
context.parser().skipChildren();
}
}
context.path().remove();
}
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);
}
}
}
}
}
}
