com.liferay.wiki.web.internal.portlet.action.EditPageMVCRenderCommand.java Source code

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Here is the source code for com.liferay.wiki.web.internal.portlet.action.EditPageMVCRenderCommand.java

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/**
 * 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.wiki.web.internal.portlet.action;

import com.liferay.portal.kernel.portlet.bridges.mvc.MVCRenderCommand;
import com.liferay.portal.kernel.security.auth.PrincipalException;
import com.liferay.portal.kernel.service.ServiceContext;
import com.liferay.portal.kernel.servlet.SessionErrors;
import com.liferay.portal.kernel.util.ParamUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.wiki.configuration.WikiGroupServiceConfiguration;
import com.liferay.wiki.constants.WikiPortletKeys;
import com.liferay.wiki.constants.WikiWebKeys;
import com.liferay.wiki.engine.impl.WikiEngineRenderer;
import com.liferay.wiki.exception.DuplicatePageException;
import com.liferay.wiki.exception.NoSuchNodeException;
import com.liferay.wiki.exception.NoSuchPageException;
import com.liferay.wiki.exception.PageTitleException;
import com.liferay.wiki.model.WikiNode;
import com.liferay.wiki.model.WikiPage;
import com.liferay.wiki.model.WikiPageConstants;
import com.liferay.wiki.service.WikiPageService;
import com.liferay.wiki.validator.WikiPageTitleValidator;
import com.liferay.wiki.web.util.WikiWebComponentProvider;

import javax.portlet.PortletException;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;

/**
 * @author Brian Wing Shun Chan
 * @author Jorge Ferrer
 */
@Component(immediate = true, property = { "javax.portlet.name=" + WikiPortletKeys.WIKI,
        "javax.portlet.name=" + WikiPortletKeys.WIKI_ADMIN, "javax.portlet.name=" + WikiPortletKeys.WIKI_DISPLAY,
        "mvc.command.name=/wiki/edit_page" }, service = MVCRenderCommand.class)
public class EditPageMVCRenderCommand implements MVCRenderCommand {

    @Override
    public String render(RenderRequest renderRequest, RenderResponse renderResponse) throws PortletException {

        try {
            renderRequest.setAttribute(WikiWebKeys.WIKI_ENGINE_RENDERER, _wikiEngineRenderer);

            renderRequest.setAttribute(WikiWebKeys.WIKI_PAGE_TITLE_VALIDATOR, _wikiPageTitleValidator);

            WikiNode node = ActionUtil.getNode(renderRequest);

            renderRequest.setAttribute(WikiWebKeys.WIKI_NODE, node);

            if (!SessionErrors.contains(renderRequest, DuplicatePageException.class.getName())) {

                getPage(renderRequest);
            }
        } catch (Exception e) {
            if (e instanceof NoSuchNodeException || e instanceof PageTitleException
                    || e instanceof PrincipalException) {

                SessionErrors.add(renderRequest, e.getClass());
            } else if (e instanceof NoSuchPageException) {

                // Let edit_page.jsp handle this case

            } else {
                throw new PortletException(e);
            }
        }

        return "/wiki/edit_page.jsp";
    }

    protected void getPage(RenderRequest renderRequest) throws Exception {
        long nodeId = ParamUtil.getLong(renderRequest, "nodeId");
        String title = ParamUtil.getString(renderRequest, "title");
        double version = ParamUtil.getDouble(renderRequest, "version");
        boolean removeRedirect = ParamUtil.getBoolean(renderRequest, "removeRedirect");

        if (nodeId == 0) {
            WikiNode node = (WikiNode) renderRequest.getAttribute(WikiWebKeys.WIKI_NODE);

            if (node != null) {
                nodeId = node.getNodeId();
            }
        }

        WikiPage page = null;

        if (Validator.isNull(title)) {
            renderRequest.setAttribute(WikiWebKeys.WIKI_PAGE, page);

            return;
        }

        try {
            if (version == 0) {
                page = _wikiPageService.getPage(nodeId, title, null);
            } else {
                page = _wikiPageService.getPage(nodeId, title, version);
            }
        } catch (NoSuchPageException nspe1) {
            try {
                page = _wikiPageService.getPage(nodeId, title, false);
            } catch (NoSuchPageException nspe2) {
                WikiWebComponentProvider wikiWebComponentProvider = WikiWebComponentProvider
                        .getWikiWebComponentProvider();

                WikiGroupServiceConfiguration wikiGroupServiceConfiguration = wikiWebComponentProvider
                        .getWikiGroupServiceConfiguration();

                if (title.equals(wikiGroupServiceConfiguration.frontPageName()) && (version == 0)) {

                    ServiceContext serviceContext = new ServiceContext();

                    page = _wikiPageService.addPage(nodeId, title, null, WikiPageConstants.NEW, true,
                            serviceContext);
                } else {
                    throw nspe2;
                }
            }
        }

        if (removeRedirect) {
            page.setContent(StringPool.BLANK);
            page.setRedirectTitle(StringPool.BLANK);
        }

        renderRequest.setAttribute(WikiWebKeys.WIKI_PAGE, page);
    }

    @Reference(unbind = "-")
    protected void setWikiEngineRenderer(WikiEngineRenderer wikiEngineRenderer) {

        _wikiEngineRenderer = wikiEngineRenderer;
    }

    @Reference(unbind = "-")
    protected void setWikiPageService(WikiPageService wikiPageService) {
        _wikiPageService = wikiPageService;
    }

    @Reference(unbind = "-")
    protected void setWikiPageTitleValidator(WikiPageTitleValidator wikiPageTitleValidator) {

        _wikiPageTitleValidator = wikiPageTitleValidator;
    }

    private WikiEngineRenderer _wikiEngineRenderer;
    private WikiPageService _wikiPageService;
    private WikiPageTitleValidator _wikiPageTitleValidator;

}