com.fasterxml.jackson.databind.ser.std.IterableSerializer Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including
all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and
Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
package com.fasterxml.jackson.databind.ser.std;
import java.io.IOException;
import java.util.*;
import com.fasterxml.jackson.core.*;
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;
@JacksonStdImpl
@SuppressWarnings("serial")
public class IterableSerializer
extends AsArraySerializerBase>
{
public IterableSerializer(JavaType elemType, boolean staticTyping,
TypeSerializer vts) {
super(Iterable.class, elemType, staticTyping, vts, null);
}
public IterableSerializer(IterableSerializer src, BeanProperty property,
TypeSerializer vts, JsonSerializer> valueSerializer,
Boolean unwrapSingle) {
super(src, property, vts, valueSerializer, unwrapSingle);
}
@Override
public ContainerSerializer> _withValueTypeSerializer(TypeSerializer vts) {
return new IterableSerializer(this, _property, vts, _elementSerializer, _unwrapSingle);
}
@Override
public IterableSerializer withResolved(BeanProperty property,
TypeSerializer vts, JsonSerializer> elementSerializer,
Boolean unwrapSingle) {
return new IterableSerializer(this, property, vts, elementSerializer, unwrapSingle);
}
@Override
public boolean isEmpty(SerializerProvider prov, Iterable> value) {
// Not really good way to implement this, but has to do for now:
return !value.iterator().hasNext();
}
@Override
public boolean hasSingleElement(Iterable> value) {
// we can do it actually (fixed in 2.3.1)
if (value != null) {
Iterator> it = value.iterator();
if (it.hasNext()) {
it.next();
if (!it.hasNext()) {
return true;
}
}
}
return false;
}
@Override
public final void serialize(Iterable> value, JsonGenerator gen,
SerializerProvider provider)throws IOException
{
if (((_unwrapSingle == null) &&
provider.isEnabled(SerializationFeature.WRITE_SINGLE_ELEM_ARRAYS_UNWRAPPED))
|| (_unwrapSingle == Boolean.TRUE)) {
if (hasSingleElement(value)) {
serializeContents(value, gen, provider);
return;
}
}
gen.writeStartArray(value);
serializeContents(value, gen, provider);
gen.writeEndArray();
}
@Override
public void serializeContents(Iterable> value, JsonGenerator jgen,
SerializerProvider provider) throws IOException
{
Iterator> it = value.iterator();
if (it.hasNext()) {
final TypeSerializer typeSer = _valueTypeSerializer;
JsonSerializer
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