/*
* Copyright 2002-2013 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.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.DestinationVariable;
import org.springframework.messaging.support.MessageBuilder;
import static org.junit.Assert.*;
/**
* Test fixture for {@link DestinationVariableMethodArgumentResolver} tests.
*
* @author Brian Clozel
*/
public class DestinationVariableMethodArgumentResolverTests {
private DestinationVariableMethodArgumentResolver resolver;
private MethodParameter paramAnnotated;
private MethodParameter paramAnnotatedValue;
private MethodParameter paramNotAnnotated;
@Before
public void setup() throws Exception {
this.resolver = new DestinationVariableMethodArgumentResolver(new DefaultConversionService());
Method method = getClass().getDeclaredMethod("handleMessage", String.class, String.class, String.class);
this.paramAnnotated = new MethodParameter(method, 0);
this.paramAnnotatedValue = new MethodParameter(method, 1);
this.paramNotAnnotated = new MethodParameter(method, 2);
this.paramAnnotated.initParameterNameDiscovery(new DefaultParameterNameDiscoverer());
GenericTypeResolver.resolveParameterType(this.paramAnnotated, DestinationVariableMethodArgumentResolver.class);
this.paramAnnotatedValue.initParameterNameDiscovery(new DefaultParameterNameDiscoverer());
GenericTypeResolver.resolveParameterType(this.paramAnnotatedValue, DestinationVariableMethodArgumentResolver.class);
}
@Test
public void supportsParameter() {
assertTrue(resolver.supportsParameter(paramAnnotated));
assertTrue(resolver.supportsParameter(paramAnnotatedValue));
assertFalse(resolver.supportsParameter(paramNotAnnotated));
}
@Test
public void resolveArgument() throws Exception {
Map<String, Object> vars = new HashMap<String, Object>();
vars.put("foo", "bar");
vars.put("name", "value");
Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).setHeader(
DestinationVariableMethodArgumentResolver.DESTINATION_TEMPLATE_VARIABLES_HEADER, vars).build();
Object result = this.resolver.resolveArgument(this.paramAnnotated, message);
assertEquals("bar", result);
result = this.resolver.resolveArgument(this.paramAnnotatedValue, message);
assertEquals("value", result);
}
@Test(expected = MessageHandlingException.class)
public void resolveArgumentNotFound() throws Exception {
Message<byte[]> message = MessageBuilder.withPayload(new byte[0]).build();
this.resolver.resolveArgument(this.paramAnnotated, message);
}
@SuppressWarnings("unused")
private void handleMessage(
@DestinationVariable String foo,
@DestinationVariable(value = "name") String param1,
String param3) {
}
}