Java tutorial
/** * Copyright (c) 2013-present Liferay Spain User Group 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 org.lsug.quota.web.internal.portlet.action.documentlibrary; import java.util.ResourceBundle; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletConfig; import javax.servlet.http.HttpServletResponse; import org.lsug.quota.exception.QuotaExceededException; import org.lsug.quota.util.PortletKeys; import org.osgi.service.component.annotations.Component; import org.osgi.service.component.annotations.Reference; import com.liferay.document.library.web.constants.DLPortletKeys; import com.liferay.portal.kernel.json.JSONFactoryUtil; import com.liferay.portal.kernel.json.JSONObject; import com.liferay.portal.kernel.portlet.JSONPortletResponseUtil; import com.liferay.portal.kernel.portlet.bridges.mvc.BaseMVCActionCommand; import com.liferay.portal.kernel.portlet.bridges.mvc.MVCActionCommand; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.theme.ThemeDisplay; import com.liferay.portal.kernel.util.Constants; import com.liferay.portal.kernel.util.ContentTypes; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.Portal; import com.liferay.portal.kernel.util.ResourceBundleUtil; import com.liferay.portal.kernel.util.WebKeys; /** * * @author Juan Gonzalez * */ @Component(property = { "javax.portlet.name=" + DLPortletKeys.DOCUMENT_LIBRARY, "javax.portlet.name=" + DLPortletKeys.DOCUMENT_LIBRARY_ADMIN, "javax.portlet.name=" + DLPortletKeys.MEDIA_GALLERY_DISPLAY, "mvc.command.name=/document_library/edit_file_entry", "service.ranking:Integer=100" }, service = MVCActionCommand.class) public class QuotaEditFileEntryMVCActionCommand extends BaseMVCActionCommand { @Override protected void doProcessAction(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { String cmd = ParamUtil.getString(actionRequest, Constants.CMD); PortletConfig portletConfig = getPortletConfig(actionRequest); try { mvcActionCommand.processAction(actionRequest, actionResponse); } catch (Exception e) { handleUploadException(portletConfig, actionRequest, actionResponse, cmd, e); } } protected void handleUploadException(PortletConfig portletConfig, ActionRequest actionRequest, ActionResponse actionResponse, String cmd, Exception e) throws Exception { Throwable errorThrowable = null; if (e instanceof QuotaExceededException) { errorThrowable = e; } else if (e.getCause() instanceof QuotaExceededException) { errorThrowable = e.getCause(); } if (errorThrowable != null) { if (!cmd.equals(Constants.ADD_DYNAMIC)) { SessionErrors.add(actionRequest, errorThrowable.getClass()); return; } HttpServletResponse response = _portal.getHttpServletResponse(actionResponse); response.setContentType(ContentTypes.TEXT_HTML); response.setStatus(HttpServletResponse.SC_OK); ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); ResourceBundle resourceBundle = ResourceBundleUtil.getBundle("content.Language", themeDisplay.getLocale(), getClass()); String errorMessage = ResourceBundleUtil.getString(resourceBundle, "quota-exceeded-error"); int errorType = PortletKeys.SC_QUOTA_EXCEEDED_ERROR_TYPE; JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); jsonObject.put("message", errorMessage); jsonObject.put("status", errorType); JSONPortletResponseUtil.writeJSON(actionRequest, actionResponse, jsonObject); SessionErrors.add(actionRequest, errorThrowable.getClass()); } else { throw e; } } @Reference private Portal _portal; @Reference(target = "(component.name=com.liferay.document.library.web.internal.portlet.action.EditFileEntryMVCActionCommand)") protected MVCActionCommand mvcActionCommand; }