com.groupbyinc.common.jackson.datatype.jdk8.OptionalIntDeserializer Maven / Gradle / Ivy
The newest version!
package com.fasterxml.jackson.datatype.jdk8;
import java.io.IOException;
import java.util.OptionalInt;
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.DeserializationFeature;
public class OptionalIntDeserializer extends BaseScalarOptionalDeserializer
{
private static final long serialVersionUID = 1L;
static final OptionalIntDeserializer INSTANCE = new OptionalIntDeserializer();
public OptionalIntDeserializer() {
super(OptionalInt.class, OptionalInt.empty());
}
@Override
public OptionalInt deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
// minor optimization, first, for common case
if (p.hasToken(JsonToken.VALUE_NUMBER_INT)) {
return OptionalInt.of(p.getIntValue());
}
switch (p.getCurrentTokenId()) {
case JsonTokenId.ID_STRING:
String text = p.getText().trim();
if ((text.length() == 0)) {
_coerceEmptyString(ctxt, false);
return _empty;
}
if (_hasTextualNull(text)) {
_coerceTextualNull(ctxt, false);
return _empty;
}
return OptionalInt.of(_parseIntPrimitive(ctxt, text));
case JsonTokenId.ID_NUMBER_FLOAT:
if (!ctxt.isEnabled(DeserializationFeature.ACCEPT_FLOAT_AS_INT)) {
_failDoubleToIntCoercion(p, ctxt, "int");
}
return OptionalInt.of(p.getValueAsInt());
case JsonTokenId.ID_NULL:
return _empty;
case JsonTokenId.ID_START_ARRAY:
if (ctxt.isEnabled(DeserializationFeature.UNWRAP_SINGLE_VALUE_ARRAYS)) {
p.nextToken();
final OptionalInt parsed = deserialize(p, ctxt);
_verifyEndArrayForSingle(p, ctxt);
return parsed;
}
break;
default:
}
return (OptionalInt) ctxt.handleUnexpectedToken(_valueClass, p);
}
}