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1
24 package org.riotfamily.common.web.servlet;
25
26 import javax.servlet.http.HttpServletRequest  ;
27 import javax.servlet.http.HttpServletResponse ;
28
29 import org.riotfamily.common.xml.BeanConfigurationWatcher;
30 import org.riotfamily.common.xml.ConfigurableBean;
31 import org.springframework.beans.BeansException;
32 import org.springframework.beans.factory.BeanFactoryUtils;
33 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
34 import org.springframework.context.ApplicationContext;
35 import org.springframework.web.servlet.DispatcherServlet;
36
37
52 public class ReloadableDispatcherServlet extends DispatcherServlet
53 implements ConfigurableBean {
54
55 private boolean reloadable = true;
56
57 private BeanConfigurationWatcher watcher = new BeanConfigurationWatcher(this);
58
59 public Class getContextClass() {
60 return ResourceAwareContext.class;
61 }
62
63 public void setReloadable(boolean reloadable) {
64 this.reloadable = reloadable;
65 }
66
67 public boolean isReloadable() {
68 return reloadable;
69 }
70
71 private void configureFromContext(ApplicationContext context) {
72 try {
73 ReloadableDispatcherServletConfig config =
74 (ReloadableDispatcherServletConfig)
75 BeanFactoryUtils.beanOfType(context,
76 ReloadableDispatcherServletConfig.class);
77
78 setReloadable(config.isReloadable());
79 }
80 catch (NoSuchBeanDefinitionException e) {
81 }
82 }
83
84 protected void onRefresh(ApplicationContext context) throws BeansException {
85 super.onRefresh(context);
86 configureFromContext(context);
87 ResourceAwareContext ctx = (ResourceAwareContext) context;
88 watcher.setResources(ctx.getConfigResources());
89 }
90
91 protected void doDispatch(HttpServletRequest request,
92 HttpServletResponse response) throws Exception {
93
94 watcher.checkForModifications();
95 super.doDispatch(request, response);
96 }
97
98 public void configure() {
99 refresh();
100 }
101 }
102 |
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