package com.atlassian.plugin.servlet.descriptors;
   
   import com.atlassian.plugin.Plugin;
   import com.atlassian.plugin.hostcontainer.DefaultHostContainer;
   import com.atlassian.plugin.module.ClassPrefixModuleFactory;
   import com.atlassian.plugin.module.ModuleFactory;
   import com.atlassian.plugin.module.PrefixDelegatingModuleFactory;
   import com.atlassian.plugin.module.PrefixModuleFactory;
   import com.atlassian.plugin.servlet.PluginBuilder;
  
  import javax.servlet.ServletContextListener;
  import java.util.Collections;
  
  public class ServletContextListenerModuleDescriptorBuilder {
      private Plugin plugin = new PluginBuilder().build();
      private String key = "test.servlet.context.listener";
      private ServletContextListener listener;
  
      public ServletContextListenerModuleDescriptorBuilder with(Plugin plugin) {
          this.plugin = plugin;
          return this;
      }
  
      public ServletContextListenerModuleDescriptorBuilder withKey(String key) {
          this.key = key;
          return this;
      }
  
      public ServletContextListenerModuleDescriptorBuilder with(ServletContextListener listener) {
          this.listener = listener;
          return this;
      }
  
      public ServletContextListenerModuleDescriptor build() {
          PrefixDelegatingModuleFactory prefixDelegatingModuleFactory = new PrefixDelegatingModuleFactory(
                  Collections.<PrefixModuleFactory>singleton(new ClassPrefixModuleFactory(new DefaultHostContainer())));
          Descriptor d = new Descriptor(plugin, key, listener, prefixDelegatingModuleFactory);
          plugin.addModuleDescriptor(d);
          return d;
      }
  
      private static final class Descriptor extends ServletContextListenerModuleDescriptor {
          final Plugin plugin;
          final String key;
          final ServletContextListener listener;
  
          public Descriptor(
                  Plugin plugin,
                  String key,
                  ServletContextListener listener, ModuleFactory moduleFactory) {
              super(moduleFactory);
              this.plugin = plugin;
              this.key = key;
              this.listener = listener;
          }
  
          @Override
          public Plugin getPlugin() {
              return plugin;
          }
  
          @Override
          public String getCompleteKey() {
              return getPluginKey() + ":" + key;
          }
  
          @Override
          public String getKey() {
              return key;
          }
  
          @Override
          public ServletContextListener getModule() {
              return listener;
          }
      }
  }