Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 1 | package com.fasterxml.jackson.databind.ser.std; |
| 2 | |
| 3 | import java.io.IOException; |
Tatu Saloranta | 64fd181 | 2014-10-11 18:48:34 -0700 | [diff] [blame] | 4 | import java.util.*; |
Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 5 | |
Tatu Saloranta | 1b253d3 | 2011-12-23 00:44:25 -0800 | [diff] [blame] | 6 | import com.fasterxml.jackson.core.*; |
Tatu Saloranta | d10146c | 2012-01-31 20:07:28 -0800 | [diff] [blame] | 7 | import com.fasterxml.jackson.databind.*; |
Tatu Saloranta | df6302f | 2011-12-23 20:05:35 -0800 | [diff] [blame] | 8 | import com.fasterxml.jackson.databind.jsontype.TypeSerializer; |
Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 9 | |
Cowtowncoder | 257ae1c | 2014-12-23 15:05:46 -0800 | [diff] [blame] | 10 | @SuppressWarnings("serial") |
Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 11 | public class EnumSetSerializer |
| 12 | extends AsArraySerializerBase<EnumSet<? extends Enum<?>>> |
| 13 | { |
Tatu Saloranta | 9ed3abf | 2015-06-19 10:51:11 -0700 | [diff] [blame] | 14 | /** |
| 15 | * @since 2.6 |
| 16 | */ |
| 17 | public EnumSetSerializer(JavaType elemType) { |
| 18 | super(EnumSet.class, elemType, true, null, null); |
| 19 | } |
| 20 | |
Tatu | a57eca7 | 2012-02-01 15:26:14 -0800 | [diff] [blame] | 21 | public EnumSetSerializer(EnumSetSerializer src, |
Tatu Saloranta | 9ed3abf | 2015-06-19 10:51:11 -0700 | [diff] [blame] | 22 | BeanProperty property, TypeSerializer vts, JsonSerializer<?> valueSerializer, |
| 23 | Boolean unwrapSingle) { |
| 24 | super(src, property, vts, valueSerializer, unwrapSingle); |
Tatu Saloranta | d10146c | 2012-01-31 20:07:28 -0800 | [diff] [blame] | 25 | } |
| 26 | |
Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 27 | @Override |
Tatu Saloranta | d10146c | 2012-01-31 20:07:28 -0800 | [diff] [blame] | 28 | public EnumSetSerializer _withValueTypeSerializer(TypeSerializer vts) { |
Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 29 | // no typing for enums (always "hard" type) |
| 30 | return this; |
| 31 | } |
Tatu | 56e8e6c | 2012-01-12 16:09:41 -0800 | [diff] [blame] | 32 | |
| 33 | @Override |
Tatu Saloranta | d10146c | 2012-01-31 20:07:28 -0800 | [diff] [blame] | 34 | public EnumSetSerializer withResolved(BeanProperty property, |
Tatu Saloranta | 9ed3abf | 2015-06-19 10:51:11 -0700 | [diff] [blame] | 35 | TypeSerializer vts, JsonSerializer<?> elementSerializer, |
| 36 | Boolean unwrapSingle) { |
| 37 | return new EnumSetSerializer(this, property, vts, elementSerializer, unwrapSingle); |
Tatu Saloranta | d10146c | 2012-01-31 20:07:28 -0800 | [diff] [blame] | 38 | } |
| 39 | |
| 40 | @Override |
Cowtowncoder | dfa1b44 | 2014-12-29 15:55:05 -0800 | [diff] [blame] | 41 | public boolean isEmpty(SerializerProvider prov, EnumSet<? extends Enum<?>> value) { |
Tatu Saloranta | faf68c5 | 2016-10-30 22:58:08 -0700 | [diff] [blame] | 42 | return value.isEmpty(); |
Tatu | 56e8e6c | 2012-01-12 16:09:41 -0800 | [diff] [blame] | 43 | } |
Tatu Saloranta | 1421af6 | 2012-03-09 21:46:44 -0800 | [diff] [blame] | 44 | |
| 45 | @Override |
| 46 | public boolean hasSingleElement(EnumSet<? extends Enum<?>> value) { |
| 47 | return value.size() == 1; |
| 48 | } |
Tatu Saloranta | 64fd181 | 2014-10-11 18:48:34 -0700 | [diff] [blame] | 49 | |
| 50 | @Override |
Tatu Saloranta | 9ed3abf | 2015-06-19 10:51:11 -0700 | [diff] [blame] | 51 | public final void serialize(EnumSet<? extends Enum<?>> value, JsonGenerator gen, |
| 52 | SerializerProvider provider) throws IOException |
Tatu Saloranta | 64fd181 | 2014-10-11 18:48:34 -0700 | [diff] [blame] | 53 | { |
Tatu Saloranta | 53bd8da | 2016-10-19 15:58:39 -0700 | [diff] [blame] | 54 | final int len = value.size(); |
Tatu Saloranta | 9ed3abf | 2015-06-19 10:51:11 -0700 | [diff] [blame] | 55 | if (len == 1) { |
| 56 | if (((_unwrapSingle == null) |
| 57 | && provider.isEnabled(SerializationFeature.WRITE_SINGLE_ELEM_ARRAYS_UNWRAPPED)) |
| 58 | || (_unwrapSingle == Boolean.TRUE)) { |
| 59 | serializeContents(value, gen, provider); |
| 60 | return; |
| 61 | } |
Tatu Saloranta | 64fd181 | 2014-10-11 18:48:34 -0700 | [diff] [blame] | 62 | } |
Tatu Saloranta | 9ed3abf | 2015-06-19 10:51:11 -0700 | [diff] [blame] | 63 | gen.writeStartArray(len); |
| 64 | serializeContents(value, gen, provider); |
| 65 | gen.writeEndArray(); |
Tatu Saloranta | 64fd181 | 2014-10-11 18:48:34 -0700 | [diff] [blame] | 66 | } |
Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 67 | |
| 68 | @Override |
Tatu Saloranta | 9ed3abf | 2015-06-19 10:51:11 -0700 | [diff] [blame] | 69 | public void serializeContents(EnumSet<? extends Enum<?>> value, JsonGenerator gen, |
| 70 | SerializerProvider provider) |
| 71 | throws IOException |
Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 72 | { |
| 73 | JsonSerializer<Object> enumSer = _elementSerializer; |
| 74 | /* Need to dynamically find instance serializer; unfortunately |
| 75 | * that seems to be the only way to figure out type (no accessors |
| 76 | * to the enum class that set knows) |
| 77 | */ |
| 78 | for (Enum<?> en : value) { |
| 79 | if (enumSer == null) { |
Oliver Kopp | 5e3bf08 | 2017-06-27 14:12:19 +0300 | [diff] [blame] | 80 | /* 12-Jan-2010, tatu: Since enums cannot be polymorphic, let's |
Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 81 | * not bother with typed serializer variant here |
| 82 | */ |
| 83 | enumSer = provider.findValueSerializer(en.getDeclaringClass(), _property); |
| 84 | } |
Tatu Saloranta | 9ed3abf | 2015-06-19 10:51:11 -0700 | [diff] [blame] | 85 | enumSer.serialize(en, gen, provider); |
Tatu Saloranta | e4f23bb | 2011-12-23 00:31:35 -0800 | [diff] [blame] | 86 | } |
| 87 | } |
| 88 | } |