Initializer Action

The DisplayURL portlet's Initializer action class initializes properties that are used by the other action classes and puts the properties into a PortletContext object. The source code follows.

/**Copyright (c) 2003 by SAS Institute Inc., Cary, NC 27513.
 * All Rights Reserved.
 */
package com.sas.portal.portlets.displayurl;

import java.rmi.RemoteException;
import java.util.Properties;

import com.sas.portal.Logger;
import com.sas.portal.portlet.PortletContext;
import com.sas.portal.portlet.PortletInitializerInterface;
import com.sas.portal.portlet.configuration.Attribute;
import com.sas.portal.portlet.configuration.Configuration;
import com.sas.portal.portlet.configuration.ConfigurationFactory;


/**
 * This initializes common properties by putting them into a
 * PortletContext object.
 */
public class Initializer implements PortletInitializerInterface
{
    private final String _loggingContext = this.getClass().getName();

    /* Key for the URL String in the PortletContext.*/
    public static final String DISPLAY_URL_KEY =
        "sas_DisplayURL_DisplayURL";

    /* PortletContext key for the edit screen Ok button URL */
    public static final String EDIT_OK_URL_KEY =
        "sas_DisplayURL_EditOkURL";

    /* PortletContext key for the edit screen Cancel button URL */
    public static final String EDIT_CANCEL_URL_KEY =
        "sas_DisplayURL_EditCancelURL";

    /** Key for the PortletException object in the PortletContext.*/
    public static final String PORTLET_EXCEPTION_KEY =
        "sasPortletException";

    /**
     * Puts initial properties into the PortletContext object. These 
     * come from the portlet.xml.
     * @param initProperties a Properties object
     * @param context the PortletContext for this portlet
     */
    public void initialize(Properties initProperties, 
        PortletContext context)
    {
        try {
          // get the initial url from the portlet configuration object
          Configuration config = ConfigurationFactory.getConfiguration(
              context);
          Attribute attr = config.getAttribute(
              Initializer.DISPLAY_URL_KEY);
          String url = (attr == null) ? "" : attr.getValue();

          context.setAttribute("error-page",
              initProperties.getProperty("error-page"));
          context.setAttribute("display-page",
              initProperties.getProperty("display-page"));
          context.setAttribute("edit-page",
              initProperties.getProperty("edit-page"));
          context.setAttribute(Initializer.DISPLAY_URL_KEY, url);

          if (Logger.isDebugEnabled(_loggingContext)){
          	Logger.debug("Display portlet URL: " +
          	    url, _loggingContext);
          }
		} catch ( RemoteException e) {
          context.setAttribute(Initializer.PORTLET_EXCEPTION_KEY, e);
		}
    }
}