/*
* 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.handler.annotation.support;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import org.springframework.core.MethodParameter;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.handler.annotation.Headers;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.messaging.support.MessageHeaderAccessor;
import org.springframework.messaging.support.NativeMessageHeaderAccessor;
import static org.junit.Assert.*;
/**
* Test fixture for {@link HeadersMethodArgumentResolver} tests.
*
* @author Rossen Stoyanchev
* @since 4.0
*/
public class HeadersMethodArgumentResolverTests {
private HeadersMethodArgumentResolver resolver;
private MethodParameter paramAnnotated;
private MethodParameter paramAnnotatedNotMap;
private MethodParameter paramMessageHeaders;
private MethodParameter paramMessageHeaderAccessor;
private MethodParameter paramMessageHeaderAccessorSubclass;
private Message<byte[]> message;
@Before
public void setup() throws Exception {
this.resolver = new HeadersMethodArgumentResolver();
Method method = getClass().getDeclaredMethod("handleMessage", Map.class, String.class,
MessageHeaders.class, MessageHeaderAccessor.class, TestMessageHeaderAccessor.class);
this.paramAnnotated = new MethodParameter(method, 0);
this.paramAnnotatedNotMap = new MethodParameter(method, 1);
this.paramMessageHeaders = new MethodParameter(method, 2);
this.paramMessageHeaderAccessor = new MethodParameter(method, 3);
this.paramMessageHeaderAccessorSubclass = new MethodParameter(method, 4);
Map<String, Object> headers = new HashMap<>();
headers.put("foo", "bar");
this.message = MessageBuilder.withPayload(new byte[0]).copyHeaders(headers).build();
}
@Test
public void supportsParameter() {
assertTrue(this.resolver.supportsParameter(this.paramAnnotated));
assertFalse(this.resolver.supportsParameter(this.paramAnnotatedNotMap));
assertTrue(this.resolver.supportsParameter(this.paramMessageHeaders));
assertTrue(this.resolver.supportsParameter(this.paramMessageHeaderAccessor));
assertTrue(this.resolver.supportsParameter(this.paramMessageHeaderAccessorSubclass));
}
@Test
public void resolveArgumentAnnotated() throws Exception {
Object resolved = this.resolver.resolveArgument(this.paramAnnotated, this.message);
assertTrue(resolved instanceof Map);
@SuppressWarnings("unchecked")
Map<String, Object> headers = (Map<String, Object>) resolved;
assertEquals("bar", headers.get("foo"));
}
@Test(expected = IllegalStateException.class)
public void resolveArgumentAnnotatedNotMap() throws Exception {
this.resolver.resolveArgument(this.paramAnnotatedNotMap, this.message);
}
@Test
public void resolveArgumentMessageHeaders() throws Exception {
Object resolved = this.resolver.resolveArgument(this.paramMessageHeaders, this.message);
assertTrue(resolved instanceof MessageHeaders);
MessageHeaders headers = (MessageHeaders) resolved;
assertEquals("bar", headers.get("foo"));
}
@Test
public void resolveArgumentMessageHeaderAccessor() throws Exception {
Object resolved = this.resolver.resolveArgument(this.paramMessageHeaderAccessor, this.message);
assertTrue(resolved instanceof MessageHeaderAccessor);
MessageHeaderAccessor headers = (MessageHeaderAccessor) resolved;
assertEquals("bar", headers.getHeader("foo"));
}
@Test
public void resolveArgumentMessageHeaderAccessorSubclass() throws Exception {
Object resolved = this.resolver.resolveArgument(this.paramMessageHeaderAccessorSubclass, this.message);
assertTrue(resolved instanceof TestMessageHeaderAccessor);
TestMessageHeaderAccessor headers = (TestMessageHeaderAccessor) resolved;
assertEquals("bar", headers.getHeader("foo"));
}
@SuppressWarnings("unused")
private void handleMessage(
@Headers Map<String, ?> param1,
@Headers String param2,
MessageHeaders param3,
MessageHeaderAccessor param4,
TestMessageHeaderAccessor param5) {
}
public static class TestMessageHeaderAccessor extends NativeMessageHeaderAccessor {
protected TestMessageHeaderAccessor(Message<?> message) {
super(message);
}
public static TestMessageHeaderAccessor wrap(Message<?> message) {
return new TestMessageHeaderAccessor(message);
}
}
}