--- /dev/null
+/*
+ * Copyright (C) 2007-2012 Mathieu Baudier
+ *
+ * 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.argeo.support.junit;
+
+import java.util.Map;
+
+import junit.framework.TestCase;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.beans.factory.BeanFactoryUtils;
+import org.springframework.beans.factory.ListableBeanFactory;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+
+/** Helper for tests using a Spring application context. */
+public abstract class AbstractSpringTestCase extends TestCase {
+ protected final Log log = LogFactory.getLog(getClass());
+ private ConfigurableApplicationContext context;
+
+ /**
+ * Gets (and creates if necessary) the application context to use. Default
+ * implementation uses a class path xml application context and calls
+ * {@link #getApplicationContextLocation()}.
+ */
+ protected ConfigurableApplicationContext getContext() {
+ if (context == null) {
+ context = new ClassPathXmlApplicationContext(
+ getApplicationContextLocation());
+ if (getIsStartContext())
+ context.start();
+ }
+ return context;
+ }
+
+ /** Whether the context should be started after being created. */
+ protected Boolean getIsStartContext() {
+ return false;
+ }
+
+ /** Returns a bean from the underlying context */
+ @SuppressWarnings(value = { "unchecked" })
+ protected <T> T getBean(String beanId) {
+ return (T) getContext().getBean(beanId);
+ }
+
+ protected <T> T getBean(Class<? extends T> clss) {
+ T bean = loadSingleFromContext(getContext(), clss);
+ if (bean == null) {
+ throw new RuntimeException("Cannot retrieve a unique bean of type "
+ + clss);
+ } else {
+ return bean;
+ }
+ }
+
+ /**
+ * The location of the application to load. The default implementation
+ * returns <i>applicationContext.xml</i> found in the same package as the
+ * test.
+ */
+ protected String getApplicationContextLocation() {
+ return inPackage("applicationContext.xml");
+ }
+
+ /**
+ * Prefixes the package of the class after converting the '.' to '/' in
+ * order to have a resource path.
+ */
+ protected String inPackage(String suffix) {
+ String prefix = getClass().getPackage().getName().replace('.', '/');
+ return prefix + '/' + suffix;
+ }
+
+ @SuppressWarnings(value = { "unchecked" })
+ protected <T> T loadSingleFromContext(ListableBeanFactory context,
+ Class<T> clss) {
+ Map<String, T> beans = BeanFactoryUtils.beansOfTypeIncludingAncestors(
+ context, clss, false, false);
+ if (beans.size() == 1) {
+ return beans.values().iterator().next();
+ } else if (beans.size() > 1) {
+ if (log.isDebugEnabled()) {
+ log
+ .debug(("Found more that one bean for type " + clss
+ + ": " + beans.keySet()));
+ }
+ return null;
+ } else {
+ return null;
+ }
+ }
+
+}