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package com.fasterxml.jackson.databind.jsontype;
import java.io.IOException;
import java.util.LinkedHashMap;
import java.util.Map;
import com.fasterxml.jackson.annotation.*;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.fasterxml.jackson.databind.testutil.NoCheckSubTypeValidator;
public class TypeRefinementForMapTest extends BaseMapTest
{
interface HasUniqueId<K> {
K getId();
}
static class Item implements HasUniqueId<String>
{
public String id;
public String property;
@Override
public String getId() { return id; }
}
static class Data
{
public String id;
@JsonDeserialize(as = MyHashMap.class)
public Map<String, Item> items;
// Would work with straight arguments:
// public MyHashMap<String, Item> items;
}
@SuppressWarnings("serial")
static class MyHashMap<K, V extends HasUniqueId<K>>
extends LinkedHashMap<K, V>
{
@JsonCreator(mode=JsonCreator.Mode.DELEGATING)
public MyHashMap(V[] values) {
for (int i = 0; i < values.length; i++) {
V v = values[i];
put(v.getId(), v);
}
}
}
// for [databind#1384]
@JsonAutoDetect(fieldVisibility = JsonAutoDetect.Visibility.ANY)
public static final class TestClass {
@JsonProperty("mapProperty")
@JsonSerialize(keyUsing = CompoundKeySerializer.class)
@JsonDeserialize(keyUsing = CompoundKeyDeserializer.class)
private final Map<CompoundKey, String> mapProperty;
@JsonCreator
private TestClass(@JsonProperty("mapProperty") Map<CompoundKey, String> mapProperty) {
this.mapProperty = mapProperty;
}
}
static final class CompoundKey {
private String part0;
private String part1;
public CompoundKey(String part0, String part1) {
this.part0 = part0;
this.part1 = part1;
}
public String getPart0() { return part0; }
public String getPart1() { return part1; }
}
static class CompoundKeyDeserializer extends KeyDeserializer {
@Override
public Object deserializeKey(String s, DeserializationContext deserializationContext) {
String[] parts = s.split("\\|");
return new CompoundKey(parts[0], parts[1]);
}
}
static class CompoundKeySerializer extends JsonSerializer<CompoundKey> {
@Override
public void serialize(CompoundKey compoundKey, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
jsonGenerator.writeFieldName(compoundKey.getPart0() + '|' + compoundKey.getPart1());
}
}
/*
/*******************************************************
/* Test methods
/*******************************************************
*/
public void testMapRefinement() throws Exception
{
String ID1 = "3a6383d4-8123-4c43-8b8d-7cedf3e59404";
String ID2 = "81c3d978-90c4-4b00-8da1-1c39ffcab02c";
String json = aposToQuotes(
"{'id':'"+ID1+"','items':[{'id':'"+ID2+"','property':'value'}]}");
ObjectMapper m = new ObjectMapper();
Data data = m.readValue(json, Data.class);
assertEquals(ID1, data.id);
assertNotNull(data.items);
assertEquals(1, data.items.size());
Item value = data.items.get(ID2);
assertNotNull(value);
assertEquals("value", value.property);
}
// for [databind#1384]
public void testMapKeyRefinement1384() throws Exception
{
final String TEST_INSTANCE_SERIALIZED =
"{\"mapProperty\":[\"java.util.HashMap\",{\"Compound|Key\":\"Value\"}]}";
ObjectMapper mapper = jsonMapperBuilder()
.activateDefaultTyping(NoCheckSubTypeValidator.instance,
ObjectMapper.DefaultTyping.NON_FINAL)
.build();
TestClass testInstance = mapper.readValue(TEST_INSTANCE_SERIALIZED, TestClass.class);
assertEquals(1, testInstance.mapProperty.size());
Object key = testInstance.mapProperty.keySet().iterator().next();
assertEquals(CompoundKey.class, key.getClass());
String testInstanceSerialized = mapper.writeValueAsString(testInstance);
assertEquals(TEST_INSTANCE_SERIALIZED, testInstanceSerialized);
}
}
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