org.argeo.slc.autoui/src/main/java/org/argeo/slc/autoui/AbstractDetachedActivator.java

   1 package org.argeo.slc.autoui;
   2
   3 import java.net.URL;
   4
   5 import org.osgi.framework.Bundle;
   6 import org.osgi.framework.BundleActivator;
   7 import org.osgi.framework.BundleContext;
   8 import org.springframework.beans.factory.support.BeanDefinitionRegistry;
   9 import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
  10 import org.springframework.context.support.AbstractApplicationContext;
  11 import org.springframework.context.support.GenericApplicationContext;
  12 import org.springframework.core.io.UrlResource;
  13
  14 public class AbstractDetachedActivator implements BundleActivator {
  15         private AbstractApplicationContext applicationContext;
  16
  17         public final void start(BundleContext context) throws Exception {
  18                 ClassLoader classLoader = getClass().getClassLoader();
  19
  20                 Thread cur = Thread.currentThread();
  21                 ClassLoader save = cur.getContextClassLoader();
  22                 cur.setContextClassLoader(classLoader);
  23
  24                 try {
  25                         // applicationContext = new ClassPathXmlApplicationContext(
  26                         // "/slc/conf/applicationContext.xml");
  27
  28                         applicationContext = new GenericApplicationContext();
  29                         XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(
  30                                         (BeanDefinitionRegistry) applicationContext);
  31                         Bundle bundle = context.getBundle();
  32
  33                         URL url = bundle
  34                                         .getResource("META-INF/slc/conf/applicationContext.xml");
  35                         if (url != null) {
  36                                 System.out.println("Loads application context from bundle "
  37                                                 + bundle.getSymbolicName() + " (url=" + url + ")");
  38                                 xmlReader.loadBeanDefinitions(new UrlResource(url));
  39                         }
  40
  41                 } catch (Exception e) {
  42                         e.printStackTrace();
  43                         throw new Exception("Could not initialize application context");
  44                 } finally {
  45                         cur.setContextClassLoader(save);
  46                 }
  47
  48                 startAutoBundle(context);
  49         }
  50
  51         /** Does nothing by default. */
  52         protected void startAutoBundle(BundleContext context) throws Exception {
  53
  54         }
  55
  56         public final void stop(BundleContext context) throws Exception {
  57                 stopAutoBundle(context);
  58
  59                 if (applicationContext != null) {
  60                         applicationContext.close();
  61                 }
  62
  63         }
  64
  65         /** Does nothing by default. */
  66         protected void stopAutoBundle(BundleContext context) throws Exception {
  67
  68         }
  69
  70         public Object getStaticRef(String id) {
  71                 return applicationContext.getBean(id);
  72         }
  73
  74 }