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SPR-7002 - RestTemplate fails to convert properly for Generic Type Container with MappingJacksonHttpMessageConverter

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This commit is contained in:
Arjen Poutsma
2010-03-23 11:15:13 +00:00
parent f7ac7a395c
commit 212daa1995
2 changed files with 57 additions and 5 deletions
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33
org.springframework.web/src/test/java/org/springframework/http/converter/json/MappingJacksonHttpMessageConverterTests.java
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@@ -23,6 +23,8 @@ import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.codehaus.jackson.map.type.TypeFactory;
import org.codehaus.jackson.type.JavaType;
import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.Test;
@@ -56,7 +58,6 @@ public class MappingJacksonHttpMessageConverterTests {
}
@Test
@SuppressWarnings("unchecked")
public void readTyped() throws IOException {
String body =
"{\"bytes\":\"AQI=\",\"array\":[\"Foo\",\"Bar\"],\"number\":42,\"string\":\"Foo\",\"bool\":true,\"fraction\":42.0}";
@@ -71,6 +72,36 @@ public class MappingJacksonHttpMessageConverterTests {
assertArrayEquals(new byte[]{0x1, 0x2}, result.getBytes());
}
@Test
@SuppressWarnings("unchecked")
public void readGenerics() throws IOException {
converter = new MappingJacksonHttpMessageConverter() {
@Override
protected JavaType getJavaType(Class<?> clazz) {
if (List.class.isAssignableFrom(clazz)) {
return TypeFactory.collectionType(ArrayList.class, MyBean.class);
}
else {
return super.getJavaType(clazz);
}
}
};
String body =
"[{\"bytes\":\"AQI=\",\"array\":[\"Foo\",\"Bar\"],\"number\":42,\"string\":\"Foo\",\"bool\":true,\"fraction\":42.0}]";
MockHttpInputMessage inputMessage = new MockHttpInputMessage(body.getBytes("UTF-8"));
inputMessage.getHeaders().setContentType(new MediaType("application", "json"));
List<MyBean> results = (List<MyBean>) converter.read(List.class, inputMessage);
assertEquals(1, results.size());
MyBean result = results.get(0);
assertEquals("Foo", result.getString());
assertEquals(42, result.getNumber());
assertEquals(42F, result.getFraction(), 0F);
assertArrayEquals(new String[]{"Foo", "Bar"}, result.getArray());
assertTrue(result.isBool());
assertArrayEquals(new byte[]{0x1, 0x2}, result.getBytes());
}
@Test
@SuppressWarnings("unchecked")
public void readUntyped() throws IOException {