io.prestosql.jdbc.$internal.jackson.datatype.guava.ser.GuavaBeanSerializerModifier Maven / Gradle / Ivy
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package io.prestosql.jdbc.$internal.jackson.datatype.guava.ser;
import io.prestosql.jdbc.$internal.jackson.databind.BeanDescription;
import io.prestosql.jdbc.$internal.jackson.databind.SerializationConfig;
import io.prestosql.jdbc.$internal.jackson.databind.ser.BeanPropertyWriter;
import io.prestosql.jdbc.$internal.jackson.databind.ser.BeanSerializerModifier;
import io.prestosql.jdbc.$internal.guava.base.Optional;
import java.io.Serializable;
import java.util.List;
/**
* {@link BeanSerializerModifier} needed to sneak in handler to exclude "absent"
* optional values iff handling of "absent as nulls" is enabled.
*/
public class GuavaBeanSerializerModifier extends BeanSerializerModifier
implements Serializable
{
static final long serialVersionUID = 1L;
@Override
public List changeProperties(SerializationConfig config,
BeanDescription beanDesc,
List beanProperties)
{
for (int i = 0; i < beanProperties.size(); ++i) {
final BeanPropertyWriter writer = beanProperties.get(i);
if (Optional.class.isAssignableFrom(writer.getType().getRawClass())) {
beanProperties.set(i, new GuavaOptionalBeanPropertyWriter(writer));
}
}
return beanProperties;
}
}