/*
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.messaging.converter;
import java.io.IOException;
import java.lang.reflect.Method;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import com.fasterxml.jackson.annotation.JsonView;
import com.fasterxml.jackson.databind.DeserializationFeature;
import org.junit.Test;
import org.springframework.core.MethodParameter;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.util.MimeType;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
/**
* Test fixture for {@link org.springframework.messaging.converter.MappingJackson2MessageConverter}.
*
* @author Rossen Stoyanchev
* @author Sebastien Deleuze
*/
public class MappingJackson2MessageConverterTests {
@Test
public void defaultConstructor() {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
assertThat(converter.getSupportedMimeTypes(), contains(new MimeType("application", "json", StandardCharsets.UTF_8)));
assertFalse(converter.getObjectMapper().getDeserializationConfig().isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES));
}
@Test // SPR-12724
public void mimetypeParametrizedConstructor() {
MimeType mimetype = new MimeType("application", "xml", StandardCharsets.UTF_8);
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter(mimetype);
assertThat(converter.getSupportedMimeTypes(), contains(mimetype));
assertFalse(converter.getObjectMapper().getDeserializationConfig().isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES));
}
@Test // SPR-12724
public void mimetypesParametrizedConstructor() {
MimeType jsonMimetype = new MimeType("application", "json", StandardCharsets.UTF_8);
MimeType xmlMimetype = new MimeType("application", "xml", StandardCharsets.UTF_8);
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter(jsonMimetype, xmlMimetype);
assertThat(converter.getSupportedMimeTypes(), contains(jsonMimetype, xmlMimetype));
assertFalse(converter.getObjectMapper().getDeserializationConfig().isEnabled(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES));
}
@Test
public void fromMessage() throws Exception {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
String payload = "{\"bytes\":\"AQI=\",\"array\":[\"Foo\",\"Bar\"],\"number\":42,\"string\":\"Foo\",\"bool\":true,\"fraction\":42.0}";
Message<?> message = MessageBuilder.withPayload(payload.getBytes(StandardCharsets.UTF_8)).build();
MyBean actual = (MyBean) converter.fromMessage(message, MyBean.class);
assertEquals("Foo", actual.getString());
assertEquals(42, actual.getNumber());
assertEquals(42F, actual.getFraction(), 0F);
assertArrayEquals(new String[]{"Foo", "Bar"}, actual.getArray());
assertTrue(actual.isBool());
assertArrayEquals(new byte[]{0x1, 0x2}, actual.getBytes());
}
@Test
public void fromMessageUntyped() throws Exception {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
String payload = "{\"bytes\":\"AQI=\",\"array\":[\"Foo\",\"Bar\"],"
+ "\"number\":42,\"string\":\"Foo\",\"bool\":true,\"fraction\":42.0}";
Message<?> message = MessageBuilder.withPayload(payload.getBytes(StandardCharsets.UTF_8)).build();
@SuppressWarnings("unchecked")
HashMap<String, Object> actual = (HashMap<String, Object>) converter.fromMessage(message, HashMap.class);
assertEquals("Foo", actual.get("string"));
assertEquals(42, actual.get("number"));
assertEquals(42D, (Double) actual.get("fraction"), 0D);
assertEquals(Arrays.asList("Foo", "Bar"), actual.get("array"));
assertEquals(Boolean.TRUE, actual.get("bool"));
assertEquals("AQI=", actual.get("bytes"));
}
@Test(expected = MessageConversionException.class)
public void fromMessageInvalidJson() throws Exception {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
String payload = "FooBar";
Message<?> message = MessageBuilder.withPayload(payload.getBytes(StandardCharsets.UTF_8)).build();
converter.fromMessage(message, MyBean.class);
}
@Test
public void fromMessageValidJsonWithUnknownProperty() throws IOException {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
String payload = "{\"string\":\"string\",\"unknownProperty\":\"value\"}";
Message<?> message = MessageBuilder.withPayload(payload.getBytes(StandardCharsets.UTF_8)).build();
MyBean myBean = (MyBean)converter.fromMessage(message, MyBean.class);
assertEquals("string", myBean.getString());
}
@Test
public void toMessage() throws Exception {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
MyBean payload = new MyBean();
payload.setString("Foo");
payload.setNumber(42);
payload.setFraction(42F);
payload.setArray(new String[]{"Foo", "Bar"});
payload.setBool(true);
payload.setBytes(new byte[]{0x1, 0x2});
Message<?> message = converter.toMessage(payload, null);
String actual = new String((byte[]) message.getPayload(), StandardCharsets.UTF_8);
assertTrue(actual.contains("\"string\":\"Foo\""));
assertTrue(actual.contains("\"number\":42"));
assertTrue(actual.contains("fraction\":42.0"));
assertTrue(actual.contains("\"array\":[\"Foo\",\"Bar\"]"));
assertTrue(actual.contains("\"bool\":true"));
assertTrue(actual.contains("\"bytes\":\"AQI=\""));
assertEquals("Invalid content-type", new MimeType("application", "json", StandardCharsets.UTF_8),
message.getHeaders().get(MessageHeaders.CONTENT_TYPE, MimeType.class));
}
@Test
public void toMessageUtf16() {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
MimeType contentType = new MimeType("application", "json", StandardCharsets.UTF_16BE);
Map<String, Object> map = new HashMap<>();
map.put(MessageHeaders.CONTENT_TYPE, contentType);
MessageHeaders headers = new MessageHeaders(map);
String payload = "H\u00e9llo W\u00f6rld";
Message<?> message = converter.toMessage(payload, headers);
assertEquals("\"" + payload + "\"", new String((byte[]) message.getPayload(), StandardCharsets.UTF_16BE));
assertEquals(contentType, message.getHeaders().get(MessageHeaders.CONTENT_TYPE));
}
@Test
public void toMessageUtf16String() {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
converter.setSerializedPayloadClass(String.class);
MimeType contentType = new MimeType("application", "json", StandardCharsets.UTF_16BE);
Map<String, Object> map = new HashMap<>();
map.put(MessageHeaders.CONTENT_TYPE, contentType);
MessageHeaders headers = new MessageHeaders(map);
String payload = "H\u00e9llo W\u00f6rld";
Message<?> message = converter.toMessage(payload, headers);
assertEquals("\"" + payload + "\"", message.getPayload());
assertEquals(contentType, message.getHeaders().get(MessageHeaders.CONTENT_TYPE));
}
@Test
public void toMessageJsonView() throws Exception {
MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
Map<String, Object> map = new HashMap<>();
Method method = getClass().getDeclaredMethod("jsonViewResponse");
MethodParameter returnType = new MethodParameter(method, -1);
Message<?> message = converter.toMessage(jsonViewResponse(), new MessageHeaders(map), returnType);
String actual = new String((byte[]) message.getPayload(), StandardCharsets.UTF_8);
assertThat(actual, containsString("\"withView1\":\"with\""));
assertThat(actual, containsString("\"withView2\":\"with\""));
assertThat(actual, not(containsString("\"withoutView\":\"with\"")));
method = getClass().getDeclaredMethod("jsonViewPayload", JacksonViewBean.class);
MethodParameter param = new MethodParameter(method, 0);
JacksonViewBean back = (JacksonViewBean) converter.fromMessage(message, JacksonViewBean.class, param);
assertNull(back.getWithView1());
assertEquals("with", back.getWithView2());
assertNull(back.getWithoutView());
}
@JsonView(MyJacksonView1.class)
public JacksonViewBean jsonViewResponse() {
JacksonViewBean bean = new JacksonViewBean();
bean.setWithView1("with");
bean.setWithView2("with");
bean.setWithoutView("with");
return bean;
}
public void jsonViewPayload(@JsonView(MyJacksonView2.class) JacksonViewBean payload) {
}
public static class MyBean {
private String string;
private int number;
private float fraction;
private String[] array;
private boolean bool;
private byte[] bytes;
public byte[] getBytes() {
return bytes;
}
public void setBytes(byte[] bytes) {
this.bytes = bytes;
}
public boolean isBool() {
return bool;
}
public void setBool(boolean bool) {
this.bool = bool;
}
public String getString() {
return string;
}
public void setString(String string) {
this.string = string;
}
public int getNumber() {
return number;
}
public void setNumber(int number) {
this.number = number;
}
public float getFraction() {
return fraction;
}
public void setFraction(float fraction) {
this.fraction = fraction;
}
public String[] getArray() {
return array;
}
public void setArray(String[] array) {
this.array = array;
}
}
public interface MyJacksonView1 {};
public interface MyJacksonView2 {};
public static class JacksonViewBean {
@JsonView(MyJacksonView1.class)
private String withView1;
@JsonView({MyJacksonView1.class, MyJacksonView2.class})
private String withView2;
private String withoutView;
public String getWithView1() {
return withView1;
}
public void setWithView1(String withView1) {
this.withView1 = withView1;
}
public String getWithView2() {
return withView2;
}
public void setWithView2(String withView2) {
this.withView2 = withView2;
}
public String getWithoutView() {
return withoutView;
}
public void setWithoutView(String withoutView) {
this.withoutView = withoutView;
}
}
}