package com.fasterxml.jackson.datatype.guava.deser;
import java.io.IOException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.jsontype.TypeDeserializer;
import com.fasterxml.jackson.databind.type.CollectionType;
import com.google.common.collect.ImmutableCollection;
abstract class GuavaImmutableCollectionDeserializer<T extends ImmutableCollection<Object>>
extends GuavaCollectionDeserializer<T>
{
private static final long serialVersionUID = 1L;
GuavaImmutableCollectionDeserializer(CollectionType type,
TypeDeserializer typeDeser, JsonDeserializer<?> deser) {
super(type, typeDeser, deser);
}
protected abstract ImmutableCollection.Builder<Object> createBuilder();
@Override
protected T _deserializeContents(JsonParser jp, DeserializationContext ctxt)
throws IOException, JsonProcessingException {
JsonDeserializer<?> valueDes = _valueDeserializer;
JsonToken t;
final TypeDeserializer typeDeser = _typeDeserializerForValue;
ImmutableCollection.Builder<Object> builder = createBuilder();
while ((t = jp.nextToken()) != JsonToken.END_ARRAY) {
Object value;
if (t == JsonToken.VALUE_NULL) {
value = null;
} else if (typeDeser == null) {
value = valueDes.deserialize(jp, ctxt);
} else {
value = valueDes.deserializeWithType(jp, ctxt, typeDeser);
}
builder.add(value);
}
@SuppressWarnings("unchecked")
T collection = (T) builder.build();
return collection;
}
@Override
protected T _deserializeFromSingleValue(JsonParser jp, DeserializationContext ctxt)
throws IOException, JsonProcessingException
{
JsonDeserializer<?> valueDes = _valueDeserializer;
final TypeDeserializer typeDeser = _typeDeserializerForValue;
JsonToken t = jp.getCurrentToken();
Object value;
if (t == JsonToken.VALUE_NULL) {
value = null;
} else if (typeDeser == null) {
value = valueDes.deserialize(jp, ctxt);
} else {
value = valueDes.deserializeWithType(jp, ctxt, typeDeser);
}
@SuppressWarnings("unchecked")
T result = (T) createBuilder().add(value).build();
return result;
}
}