package com.facebook.presto.hive.shaded.org.codehaus.jackson.map.ser.std;
import java.io.IOException;
import java.util.Iterator;
import com.facebook.presto.hive.shaded.org.codehaus.jackson.JsonGenerationException;
import com.facebook.presto.hive.shaded.org.codehaus.jackson.JsonGenerator;
import com.facebook.presto.hive.shaded.org.codehaus.jackson.map.BeanProperty;
import com.facebook.presto.hive.shaded.org.codehaus.jackson.map.JsonSerializer;
import com.facebook.presto.hive.shaded.org.codehaus.jackson.map.SerializerProvider;
import com.facebook.presto.hive.shaded.org.codehaus.jackson.map.TypeSerializer;
import com.facebook.presto.hive.shaded.org.codehaus.jackson.map.annotate.JacksonStdImpl;
import com.facebook.presto.hive.shaded.org.codehaus.jackson.type.JavaType;
@JacksonStdImpl
public class IterableSerializer
extends AsArraySerializerBase<Iterable<?>>
{
public IterableSerializer(JavaType elemType, boolean staticTyping, TypeSerializer vts, BeanProperty property)
{
super(Iterable.class, elemType, staticTyping, vts, property, null);
}
@Override
public ContainerSerializerBase<?> _withValueTypeSerializer(TypeSerializer vts) {
return new IterableSerializer(_elementType, _staticTyping, vts, _property);
}
@Override
public void serializeContents(Iterable<?> value, JsonGenerator jgen, SerializerProvider provider)
throws IOException, JsonGenerationException
{
Iterator<?> it = value.iterator();
if (it.hasNext()) {
final TypeSerializer typeSer = _valueTypeSerializer;
JsonSerializer<Object> prevSerializer = null;
Class<?> prevClass = null;
do {
Object elem = it.next();
if (elem == null) {
provider.defaultSerializeNull(jgen);
} else {
// Minor optimization to avoid most lookups:
Class<?> cc = elem.getClass();
JsonSerializer<Object> currSerializer;
if (cc == prevClass) {
currSerializer = prevSerializer;
} else {
currSerializer = provider.findValueSerializer(cc, _property);
prevSerializer = currSerializer;
prevClass = cc;
}
if (typeSer == null) {
currSerializer.serialize(elem, jgen, provider);
} else {
currSerializer.serializeWithType(elem, jgen, provider, typeSer);
}
}
} while (it.hasNext());
}
}
}