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package com.fasterxml.jackson.databind.jsontype;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.databind.BaseMapTest;
import com.fasterxml.jackson.databind.ObjectMapper;
public class TestScalars extends BaseMapTest
{
private static class DynamicWrapper {
@JsonTypeInfo(use=JsonTypeInfo.Id.CLASS, include=JsonTypeInfo.As.PROPERTY)
public Object value;
@SuppressWarnings("unused")
public DynamicWrapper() { }
public DynamicWrapper(Object v) { value = v; }
}
static enum TestEnum { A, B; }
private static class AbstractWrapper {
@JsonTypeInfo(use=JsonTypeInfo.Id.CLASS, include=JsonTypeInfo.As.PROPERTY)
public Serializable value;
@SuppressWarnings("unused")
public AbstractWrapper() { }
public AbstractWrapper(Serializable v) { value = v; }
}
static class ScalarList {
@JsonTypeInfo(use=JsonTypeInfo.Id.CLASS, include=JsonTypeInfo.As.PROPERTY)
public List<Object> values = new ArrayList<Object>();
public ScalarList() { }
public ScalarList add(Object v) {
values.add(v);
return this;
}
}
/*
/**********************************************************
/* Unit tests
/**********************************************************
*/
final ObjectMapper MAPPER = newJsonMapper();
/**
* Ensure that per-property dynamic types work, both for "native" types
* and others
*/
public void testScalarsWithTyping() throws Exception
{
String json;
DynamicWrapper result;
ObjectMapper m = MAPPER;
// first, check "native" types
json = m.writeValueAsString(new DynamicWrapper(Integer.valueOf(3)));
result = m.readValue(json, DynamicWrapper.class);
assertEquals(Integer.valueOf(3), result.value);
json = m.writeValueAsString(new DynamicWrapper("abc"));
result = m.readValue(json, DynamicWrapper.class);
assertEquals("abc", result.value);
json = m.writeValueAsString(new DynamicWrapper("abc"));
result = m.readValue(json, DynamicWrapper.class);
assertEquals("abc", result.value);
json = m.writeValueAsString(new DynamicWrapper(Boolean.TRUE));
result = m.readValue(json, DynamicWrapper.class);
assertEquals(Boolean.TRUE, result.value);
// then verify other scalars
json = m.writeValueAsString(new DynamicWrapper(Long.valueOf(7L)));
result = m.readValue(json, DynamicWrapper.class);
assertEquals(Long.valueOf(7), result.value);
json = m.writeValueAsString(new DynamicWrapper(TestEnum.B));
result = m.readValue(json, DynamicWrapper.class);
assertEquals(TestEnum.B, result.value);
}
public void testScalarsViaAbstractType() throws Exception
{
ObjectMapper m = MAPPER;
String json;
AbstractWrapper result;
// first, check "native" types
json = m.writeValueAsString(new AbstractWrapper(Integer.valueOf(3)));
result = m.readValue(json, AbstractWrapper.class);
assertEquals(Integer.valueOf(3), result.value);
json = m.writeValueAsString(new AbstractWrapper("abc"));
result = m.readValue(json, AbstractWrapper.class);
assertEquals("abc", result.value);
json = m.writeValueAsString(new AbstractWrapper("abc"));
result = m.readValue(json, AbstractWrapper.class);
assertEquals("abc", result.value);
json = m.writeValueAsString(new AbstractWrapper(Boolean.TRUE));
result = m.readValue(json, AbstractWrapper.class);
assertEquals(Boolean.TRUE, result.value);
// then verify other scalars
json = m.writeValueAsString(new AbstractWrapper(Long.valueOf(7L)));
result = m.readValue(json, AbstractWrapper.class);
assertEquals(Long.valueOf(7), result.value);
json = m.writeValueAsString(new AbstractWrapper(TestEnum.B));
result = m.readValue(json, AbstractWrapper.class);
assertEquals(TestEnum.B, result.value);
}
// Test inspired by [databind#1104]
public void testHeterogenousStringScalars() throws Exception
{
final UUID NULL_UUID = UUID.fromString("00000000-0000-0000-0000-000000000000");
ScalarList input = new ScalarList()
.add("Test")
.add(java.lang.Object.class)
.add(NULL_UUID)
;
String json = MAPPER.writeValueAsString(input);
ScalarList result = MAPPER.readValue(json, ScalarList.class);
assertNotNull(result.values);
assertEquals(3, result.values.size());
assertEquals("Test", result.values.get(0));
assertEquals(Object.class, result.values.get(1));
assertEquals(NULL_UUID, result.values.get(2));
}
}
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