package com.atlassian.plugin.web.model;
   
   import com.atlassian.plugin.PluginAccessor;
   import com.atlassian.plugin.web.renderer.RendererException;
   import org.apache.commons.lang.StringEscapeUtils;
   import org.slf4j.Logger;
   import org.slf4j.LoggerFactory;
   
   import java.io.IOException;
  import java.io.StringWriter;
  import java.io.Writer;
  import java.util.Map;
  
  /**
   * This class is used for web panel declaration that do not have a custom
   * <code>class</code> attribute in their descriptor, nor a <code>location</code>
   * attribute in their resource child element.
   * <p>
   * This class reads the web panel's content from the resource element's
   * content.
   *
   * @see com.atlassian.plugin.web.descriptors.DefaultWebPanelModuleDescriptor
   * @since   2.5.0
   */
  public class EmbeddedTemplateWebPanel extends AbstractWebPanel
  {
      private String templateBody;
      private static final Logger logger = LoggerFactory.getLogger(EmbeddedTemplateWebPanel.class.getName());
  
      public EmbeddedTemplateWebPanel(PluginAccessor pluginAccessor)
      {
          super(pluginAccessor);
      }
  
      /**
       * @param templateBody  the body of the web panel (may contain any content type such as velocity or just static
       *  HTML) that was inlined in <code>atlassian-plugin.xml</code>
       */
      public void setTemplateBody(String templateBody)
      {
          this.templateBody = templateBody;
      }
  
      public void writeHtml(Writer writer, Map<String, Object> context) throws IOException
      {
          try
          {
              getRenderer().renderFragment(writer, templateBody, plugin, context);
          }
          catch (RendererException e)
          {
              final String message = String.format("Error rendering WebPanel: %s\n" +
                      "Template contents: %s", e.getMessage(), templateBody);
              logger.warn(message, e);
              writer.write(StringEscapeUtils.escapeHtml(message));
          }
      }
  
      public String getHtml(final Map<String, Object> context)
      {
          try
          {
              StringWriter out = new StringWriter();
              writeHtml(out, context);
              return out.toString();
          }
          catch (IOException e)
          {
              // Something went very wrong: we failed to write to a StringWriter
              throw new RuntimeException(e);
          }
      }
  }