/*
* Copyright 2002-2014 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.List;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.support.GenericApplicationContext;
import org.springframework.core.DefaultParameterNameDiscoverer;
import org.springframework.core.GenericTypeResolver;
import org.springframework.core.MethodParameter;
import org.springframework.core.convert.support.DefaultConversionService;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHandlingException;
import org.springframework.messaging.handler.annotation.Header;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.messaging.support.NativeMessageHeaderAccessor;
import static org.junit.Assert.*;
/**
* Test fixture for {@link HeaderMethodArgumentResolver} tests.
*
* @author Rossen Stoyanchev
* @since 4.0
*/
public class HeaderMethodArgumentResolverTests {
private HeaderMethodArgumentResolver resolver;
private MethodParameter paramRequired;
private MethodParameter paramNamedDefaultValueStringHeader;
private MethodParameter paramSystemProperty;
private MethodParameter paramNotAnnotated;
private MethodParameter paramNativeHeader;
@Before
public void setup() throws Exception {
@SuppressWarnings("resource")
GenericApplicationContext cxt = new GenericApplicationContext();
cxt.refresh();
this.resolver = new HeaderMethodArgumentResolver(new DefaultConversionService(), cxt.getBeanFactory());
Method method = getClass().getDeclaredMethod("handleMessage",
String.class, String.class, String.class, String.class, String.class);
this.paramRequired = new MethodParameter(method, 0);
this.paramNamedDefaultValueStringHeader = new MethodParameter(method, 1);
this.paramSystemProperty = new MethodParameter(method, 2);
this.paramNotAnnotated = new MethodParameter(method, 3);
this.paramNativeHeader = new MethodParameter(method, 4);
this.paramRequired.initParameterNameDiscovery(new DefaultParameterNameDiscoverer());
GenericTypeResolver.resolveParameterType(this.paramRequired, HeaderMethodArgumentResolver.class);
}
@Test
public void supportsParameter() {
assertTrue(resolver.supportsParameter(paramNamedDefaultValueStringHeader));
assertFalse(resolver.supportsParameter(paramNotAnnotated));
}
@Test
public void resolveArgument() throws Exception {
Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).setHeader("param1", "foo").build();
Object result = this.resolver.resolveArgument(this.paramRequired, message);
assertEquals("foo", result);
}
// SPR-11326
@Test
public void resolveArgumentNativeHeader() throws Exception {
TestMessageHeaderAccessor headers = new TestMessageHeaderAccessor();
headers.setNativeHeader("param1", "foo");
Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).setHeaders(headers).build();
assertEquals("foo", this.resolver.resolveArgument(this.paramRequired, message));
}
@Test
public void resolveArgumentNativeHeaderAmbiguity() throws Exception {
TestMessageHeaderAccessor headers = new TestMessageHeaderAccessor();
headers.setHeader("param1", "foo");
headers.setNativeHeader("param1", "native-foo");
Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).setHeaders(headers).build();
assertEquals("foo", this.resolver.resolveArgument(this.paramRequired, message));
assertEquals("native-foo", this.resolver.resolveArgument(this.paramNativeHeader, message));
}
@Test(expected = MessageHandlingException.class)
public void resolveArgumentNotFound() throws Exception {
Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).build();
this.resolver.resolveArgument(this.paramRequired, message);
}
@Test
public void resolveArgumentDefaultValue() throws Exception {
Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).build();
Object result = this.resolver.resolveArgument(this.paramNamedDefaultValueStringHeader, message);
assertEquals("bar", result);
}
@Test
public void resolveDefaultValueSystemProperty() throws Exception {
System.setProperty("systemProperty", "sysbar");
try {
Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).build();
Object result = resolver.resolveArgument(paramSystemProperty, message);
assertEquals("sysbar", result);
}
finally {
System.clearProperty("systemProperty");
}
}
@SuppressWarnings("unused")
private void handleMessage(
@Header String param1,
@Header(value = "name", defaultValue = "bar") String param2,
@Header(value = "name", defaultValue="#{systemProperties.systemProperty}") String param3,
String param4,
@Header("nativeHeaders.param1") String nativeHeaderParam1) {
}
public static class TestMessageHeaderAccessor extends NativeMessageHeaderAccessor {
protected TestMessageHeaderAccessor() {
super((Map<String, List<String>>) null);
}
}
}