package com.fasterxml.jackson.datatype.jdk8;
import java.io.IOException;
import java.util.OptionalDouble;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.core.JsonTokenId;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.cfg.CoercionAction;
import com.fasterxml.jackson.databind.type.LogicalType;
class OptionalDoubleDeserializer extends BaseScalarOptionalDeserializer<OptionalDouble>
{
private static final long serialVersionUID = 1L;
static final OptionalDoubleDeserializer INSTANCE = new OptionalDoubleDeserializer();
public OptionalDoubleDeserializer() {
super(OptionalDouble.class, OptionalDouble.empty());
}
@Override
public LogicalType logicalType() { return LogicalType.Float; }
@Override
public OptionalDouble deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
// minor optimization, first, for common case
if (p.hasToken(JsonToken.VALUE_NUMBER_FLOAT)) {
return OptionalDouble.of(p.getDoubleValue());
}
switch (p.currentTokenId()) {
case JsonTokenId.ID_STRING:
String text = p.getText();
// 19-Nov-2020, ckozak: see jackson-databind#2942: Special case, floating point special
// values as String (e.g. "NaN", "Infinity", "-Infinity" need to be considered
// "native" representation as JSON does not allow as numbers, and hence not bound
// by coercion rules
Double specialValue = _checkDoubleSpecialValue(text);
if (specialValue != null) {
return OptionalDouble.of(specialValue);
}
CoercionAction act = _checkFromStringCoercion(ctxt, text);
// null and empty both same
if ((act == CoercionAction.AsNull) || (act == CoercionAction.AsEmpty)) {
return _empty;
}
// 21-Jun-2020, tatu: Should this also accept "textual null" similar
// to regular Doubles?
text = text.trim();
return OptionalDouble.of(_parseDoublePrimitive(ctxt, text));
case JsonTokenId.ID_NUMBER_INT: // coercion here should be fine
return OptionalDouble.of(p.getDoubleValue());
case JsonTokenId.ID_NULL:
return getNullValue(ctxt);
case JsonTokenId.ID_START_ARRAY:
return _deserializeFromArray(p, ctxt);
}
return (OptionalDouble) ctxt.handleUnexpectedToken(getValueType(ctxt), p);
}
}