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package com.fasterxml.jackson.databind.ser.impl;

import java.io.IOException;
import java.util.Iterator;

import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.annotation.JacksonStdImpl;
import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
import com.fasterxml.jackson.databind.ser.ContainerSerializer;
import com.fasterxml.jackson.databind.ser.std.AsArraySerializerBase;

@JacksonStdImpl
public class IteratorSerializer
    extends AsArraySerializerBase>
{
    public IteratorSerializer(JavaType elemType, boolean staticTyping, TypeSerializer vts,
            BeanProperty property)
    {
        super(Iterator.class, elemType, staticTyping, vts, property, null);
    }

    public IteratorSerializer(IteratorSerializer src,
            BeanProperty property, TypeSerializer vts, JsonSerializer valueSerializer)
    {
        super(src, property, vts, valueSerializer);
    }

    @Override
    public boolean isEmpty(Iterator value) {
        return (value == null) || !value.hasNext();
    }

    @Override
    public boolean hasSingleElement(Iterator value) {
        // no really good way to determine (without consuming iterator), so:
        return false;
    }
    
    @Override
    public ContainerSerializer _withValueTypeSerializer(TypeSerializer vts) {
        return new IteratorSerializer(_elementType, _staticTyping, vts, _property);
    }

    @Override
    public IteratorSerializer withResolved(BeanProperty property,
            TypeSerializer vts, JsonSerializer elementSerializer) {
        return new IteratorSerializer(this, property, vts, elementSerializer);
    }

    @Override
    public void serializeContents(Iterator value, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonGenerationException
    {
        if (value.hasNext()) {
            final TypeSerializer typeSer = _valueTypeSerializer;
            JsonSerializer