package com.atlassian.plugin.web.model;
   
   import com.atlassian.plugin.Plugin;
   import com.atlassian.plugin.PluginAccessor;
   import com.atlassian.plugin.web.renderer.RendererException;
   import com.atlassian.plugin.web.renderer.StaticWebPanelRenderer;
   import com.atlassian.plugin.web.renderer.WebPanelRenderer;
   import com.google.common.base.Preconditions;
   
  /**
   * @since   2.5.0
   */
  public abstract class AbstractWebPanel implements WebPanel
  {
      private final PluginAccessor pluginAccessor;
      protected Plugin plugin;
      private String resourceType;
  
      protected AbstractWebPanel(PluginAccessor pluginAccessor)
      {
          this.pluginAccessor = pluginAccessor;
      }
  
      public void setPlugin(Plugin plugin)
      {
          this.plugin = plugin;
      }
  
      public void setResourceType(String resourceType)
      {
          this.resourceType = Preconditions.checkNotNull(resourceType);
      }
  
      protected final WebPanelRenderer getRenderer()
      {
          if (StaticWebPanelRenderer.RESOURCE_TYPE.equals(resourceType))
          {
              return StaticWebPanelRenderer.RENDERER;
          }
          else
          {
              for (WebPanelRenderer webPanelRenderer : pluginAccessor.getEnabledModulesByClass(WebPanelRenderer.class))
              {
                  if (Preconditions.checkNotNull(resourceType).equals(webPanelRenderer.getResourceType()))
                  {
                      return webPanelRenderer;
                  }
              }
              throw new RendererException("No renderer found for resource type: " + resourceType);
          }
      }
  }