runtime/org.argeo.slc.support.simple/src/main/java/org/argeo/slc/unit/AbstractSpringTestCase.java

   1 package org.argeo.slc.unit;
   2
   3 import junit.framework.TestCase;
   4
   5 import org.apache.commons.logging.Log;
   6 import org.apache.commons.logging.LogFactory;
   7 import org.argeo.slc.SlcException;
   8 import org.argeo.slc.spring.SpringUtils;
   9 import org.springframework.context.ConfigurableApplicationContext;
  10 import org.springframework.context.support.ClassPathXmlApplicationContext;
  11
  12 /** Helper for tests using a Spring application co,text. */
  13 public abstract class AbstractSpringTestCase extends TestCase {
  14         protected final Log log = LogFactory.getLog(getClass());
  15         private ConfigurableApplicationContext context;
  16
  17         /**
  18          * Gets (and create if necessary) the application context to use. Default
  19          * implementation uses a class path xml application context and calls
  20          * {@link #getApplicationContextLocation()}.
  21          */
  22         protected ConfigurableApplicationContext getContext() {
  23                 if (context == null) {
  24                         context = new ClassPathXmlApplicationContext(
  25                                         getApplicationContextLocation());
  26                         if(getIsStartContext())
  27                                 context.start();
  28                 }
  29                 return context;
  30         }
  31
  32         /** Whether the context should be started after being created. */
  33         protected Boolean getIsStartContext(){
  34                 return false;
  35         }
  36
  37         /** Returns a bean from the underlying context */
  38         protected <T> T getBean(String beanId) {
  39                 return (T) getContext().getBean(beanId);
  40         }
  41
  42         protected <T> T getBean(Class<? extends T> clss) {
  43                 T bean = SpringUtils.loadSingleFromContext(getContext(), clss);
  44                 if (bean == null) {
  45                         throw new SlcException("Cannot retrieve a unique bean of type "
  46                                         + clss);
  47                 } else {
  48                         return bean;
  49                 }
  50         }
  51
  52         /**
  53          * Th location of the application to load. The default implementation
  54          * returns <i>applicationContext.xml</i> found in the same package as the
  55          * test.
  56          */
  57         protected String getApplicationContextLocation() {
  58                 return inPackage("applicationContext.xml");
  59         }
  60
  61         /**
  62          * Prefixes the package of the class after converting the '.' to '/' in
  63          * order to have a resource path.
  64          */
  65         protected String inPackage(String suffix) {
  66                 String prefix = getClass().getPackage().getName().replace('.', '/');
  67                 return prefix + '/' + suffix;
  68         }
  69 }