JSPPortlet.java

/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.samplejsp.portlet;

import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;

import java.io.IOException;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.GenericPortlet;
import javax.portlet.PortletException;
import javax.portlet.PortletRequestDispatcher;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

/**
 * @author Brian Wing Shun Chan
 */
public class JSPPortlet extends GenericPortlet {

	@Override
	public void doDispatch(
			RenderRequest renderRequest, RenderResponse renderResponse)
		throws IOException, PortletException {

		String mvcPath = renderRequest.getParameter("mvcPath");

		if (mvcPath != null) {
			include(mvcPath, renderRequest, renderResponse);
		}
		else {
			super.doDispatch(renderRequest, renderResponse);
		}
	}

	@Override
	public void doEdit(
			RenderRequest renderRequest, RenderResponse renderResponse)
		throws IOException, PortletException {

		if (renderRequest.getPreferences() == null) {
			super.doEdit(renderRequest, renderResponse);
		}
		else {
			include(editJSP, renderRequest, renderResponse);
		}
	}

	@Override
	public void doHelp(
			RenderRequest renderRequest, RenderResponse renderResponse)
		throws IOException, PortletException {

		include(helpJSP, renderRequest, renderResponse);
	}

	@Override
	public void doView(
			RenderRequest renderRequest, RenderResponse renderResponse)
		throws IOException, PortletException {

		include(viewJSP, renderRequest, renderResponse);
	}

	@Override
	public void init() throws PortletException {
		editJSP = getInitParameter("edit-jsp");
		helpJSP = getInitParameter("help-jsp");
		viewJSP = getInitParameter("view-jsp");
	}

	@Override
	public void processAction(
			ActionRequest actionRequest, ActionResponse actionResponse)
		throws IOException, PortletException {
	}

	protected void include(
			String path, RenderRequest renderRequest,
			RenderResponse renderResponse)
		throws IOException, PortletException {

		PortletRequestDispatcher portletRequestDispatcher =
			getPortletContext().getRequestDispatcher(path);

		if (portletRequestDispatcher == null) {
			_log.error(path + " is not a valid include");
		}
		else {
			portletRequestDispatcher.include(renderRequest, renderResponse);
		}
	}

	protected String editJSP;
	protected String helpJSP;
	protected String viewJSP;

	private static Log _log = LogFactoryUtil.getLog(JSPPortlet.class);

}