/*
* 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.test.context.web.socket;
import java.util.List;
import org.springframework.beans.BeanUtils;
import org.springframework.core.annotation.AnnotatedElementUtils;
import org.springframework.test.context.ContextConfigurationAttributes;
import org.springframework.test.context.ContextCustomizer;
import org.springframework.test.context.ContextCustomizerFactory;
import org.springframework.util.ClassUtils;
/**
* {@link ContextCustomizerFactory} which creates a {@link MockServerContainerContextCustomizer}
* if WebSocket support is present in the classpath and the test class is annotated
* with {@code @WebAppConfiguration}.
*
* @author Sam Brannen
* @since 4.3.1
*/
class MockServerContainerContextCustomizerFactory implements ContextCustomizerFactory {
private static final String WEB_APP_CONFIGURATION_ANNOTATION_CLASS_NAME =
"org.springframework.test.context.web.WebAppConfiguration";
private static final String MOCK_SERVER_CONTAINER_CONTEXT_CUSTOMIZER_CLASS_NAME =
"org.springframework.test.context.web.socket.MockServerContainerContextCustomizer";
private static final boolean webSocketPresent = ClassUtils.isPresent("javax.websocket.server.ServerContainer",
MockServerContainerContextCustomizerFactory.class.getClassLoader());
@Override
public ContextCustomizer createContextCustomizer(Class<?> testClass,
List<ContextConfigurationAttributes> configAttributes) {
if (webSocketPresent && isAnnotatedWithWebAppConfiguration(testClass)) {
try {
Class<?> clazz = ClassUtils.forName(MOCK_SERVER_CONTAINER_CONTEXT_CUSTOMIZER_CLASS_NAME,
getClass().getClassLoader());
return (ContextCustomizer) BeanUtils.instantiateClass(clazz);
}
catch (Throwable ex) {
throw new IllegalStateException("Failed to enable WebSocket test support; could not load class: " +
MOCK_SERVER_CONTAINER_CONTEXT_CUSTOMIZER_CLASS_NAME, ex);
}
}
// Else, nothing to customize
return null;
}
private static boolean isAnnotatedWithWebAppConfiguration(Class<?> testClass) {
return (AnnotatedElementUtils.findMergedAnnotationAttributes(testClass,
WEB_APP_CONFIGURATION_ANNOTATION_CLASS_NAME, false, false) != null);
}
}