Java tutorial
/** * 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.trash.web.internal.display.context; import com.liferay.frontend.taglib.clay.servlet.taglib.util.NavigationItem; import com.liferay.petra.string.StringPool; import com.liferay.portal.kernel.exception.PortalException; import com.liferay.portal.kernel.language.LanguageUtil; import com.liferay.portal.kernel.model.ContainerModel; import com.liferay.portal.kernel.portlet.LiferayPortletResponse; import com.liferay.portal.kernel.portlet.PortalPreferences; import com.liferay.portal.kernel.portlet.PortletPreferencesFactoryUtil; import com.liferay.portal.kernel.theme.ThemeDisplay; import com.liferay.portal.kernel.trash.TrashHandler; import com.liferay.portal.kernel.trash.TrashHandlerRegistryUtil; import com.liferay.portal.kernel.trash.TrashRenderer; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.PortalUtil; import com.liferay.portal.kernel.util.Validator; import com.liferay.portal.kernel.util.WebKeys; import com.liferay.trash.model.TrashEntry; import com.liferay.trash.service.TrashEntryLocalServiceUtil; import com.liferay.trash.web.internal.constants.TrashPortletKeys; import java.util.ArrayList; import java.util.List; import java.util.Objects; import javax.portlet.PortletURL; import javax.servlet.http.HttpServletRequest; /** * Provides utility methods moved from the Recycle Bin portlet's JSP files to * reduce the complexity of the views. * * @author Jrgen Kappler */ public class TrashDisplayContext { public TrashDisplayContext(HttpServletRequest request, LiferayPortletResponse liferayPortletResponse) { _request = request; _liferayPortletResponse = liferayPortletResponse; } public String getClassName() { TrashEntry trashEntry = getTrashEntry(); if (trashEntry != null) { return trashEntry.getClassName(); } String className = StringPool.BLANK; long classNameId = getClassNameId(); if (classNameId > 0) { className = PortalUtil.getClassName(getClassNameId()); } return className; } public long getClassNameId() { TrashEntry trashEntry = getTrashEntry(); if (trashEntry != null) { return trashEntry.getClassNameId(); } return ParamUtil.getLong(_request, "classNameId"); } public long getClassPK() { TrashEntry trashEntry = getTrashEntry(); if (trashEntry != null) { return trashEntry.getClassPK(); } return ParamUtil.getLong(_request, "classPK"); } public String getContainerModelRedirectURL() throws PortalException { if (Validator.isNotNull(_containerModelRedirectURL)) { return _containerModelRedirectURL; } String redirect = ParamUtil.getString(_request, "redirect"); if (Validator.isNull(redirect)) { PortletURL redirectURL = _liferayPortletResponse.createRenderURL(); redirectURL.setParameter("mvcPath", "/view_content.jsp"); long trashEntryId = getTrashEntryId(); long classNameId = getClassNameId(); long classPK = getClassPK(); if (trashEntryId > 0) { redirectURL.setParameter("trashEntryId", String.valueOf(trashEntryId)); } else if ((classNameId > 0) && (classPK > 0)) { redirectURL.setParameter("classNameId", String.valueOf(classNameId)); redirectURL.setParameter("classPK", String.valueOf(classPK)); } redirect = redirectURL.toString(); } _containerModelRedirectURL = redirect; return redirect; } public String getDisplayStyle() { if (Validator.isNotNull(_displayStyle)) { return _displayStyle; } PortalPreferences portalPreferences = PortletPreferencesFactoryUtil.getPortalPreferences(_request); _displayStyle = portalPreferences.getValue(TrashPortletKeys.TRASH, "display-style", "list"); return _displayStyle; } public List<NavigationItem> getInfoPanelNavigationItems() { ThemeDisplay themeDisplay = (ThemeDisplay) _request.getAttribute(WebKeys.THEME_DISPLAY); List<NavigationItem> navigationItems = new ArrayList<>(); NavigationItem navigationItem = new NavigationItem(); navigationItem.setActive(true); navigationItem.setHref(themeDisplay.getURLCurrent()); navigationItem.setLabel(LanguageUtil.get(_request, "details")); navigationItems.add(navigationItem); return navigationItems; } public String getNavigation() { if (_navigation != null) { return _navigation; } _navigation = ParamUtil.getString(_request, "navigation", "all"); return _navigation; } public List<NavigationItem> getNavigationItems() { List<NavigationItem> navigationItems = new ArrayList<>(); NavigationItem entriesNavigationItem = new NavigationItem(); entriesNavigationItem.setActive(true); PortletURL mainURL = _liferayPortletResponse.createRenderURL(); entriesNavigationItem.setHref(mainURL.toString()); entriesNavigationItem.setLabel(LanguageUtil.get(_request, "entries")); navigationItems.add(entriesNavigationItem); return navigationItems; } public String getOrderByCol() { if (Validator.isNotNull(_orderByCol)) { return _orderByCol; } _orderByCol = ParamUtil.getString(_request, "orderByCol", "removed-date"); return _orderByCol; } public String getOrderByType() { if (Validator.isNotNull(_orderByType)) { return _orderByType; } _orderByType = ParamUtil.getString(_request, "orderByType", "asc"); return _orderByType; } public PortletURL getPortletURL() throws PortalException { PortletURL portletURL = _liferayPortletResponse.createRenderURL(); long trashEntryId = getTrashEntryId(); if (trashEntryId > 0) { portletURL.setParameter("mvcPath", "/view_content.jsp"); portletURL.setParameter("trashEntryId", String.valueOf(trashEntryId)); } String displayStyle = getDisplayStyle(); if (Validator.isNotNull(displayStyle)) { portletURL.setParameter("displayStyle", displayStyle); } String keywords = ParamUtil.getString(_request, "keywords"); if (Validator.isNotNull(keywords)) { portletURL.setParameter("keywords", keywords); } String navigation = getNavigation(); if (Validator.isNotNull(navigation)) { portletURL.setParameter("navigation", navigation); } return portletURL; } public TrashEntry getTrashEntry() { if (_trashEntry != null) { return _trashEntry; } long trashEntryId = ParamUtil.getLong(_request, "trashEntryId"); long classNameId = ParamUtil.getLong(_request, "classNameId"); long classPK = ParamUtil.getLong(_request, "classPK"); if (trashEntryId > 0) { _trashEntry = TrashEntryLocalServiceUtil.fetchEntry(trashEntryId); } else if ((classNameId > 0) && (classPK > 0)) { String className = PortalUtil.getClassName(classNameId); if (Validator.isNotNull(className)) { _trashEntry = TrashEntryLocalServiceUtil.fetchEntry(className, classPK); } } return _trashEntry; } public long getTrashEntryId() { TrashEntry trashEntry = getTrashEntry(); if (trashEntry != null) { return trashEntry.getEntryId(); } return 0; } public TrashHandler getTrashHandler() { if (_trashHandler != null) { return _trashHandler; } _trashHandler = TrashHandlerRegistryUtil.getTrashHandler(getClassName()); return _trashHandler; } public TrashRenderer getTrashRenderer() throws PortalException { if (_trashRenderer != null) { return _trashRenderer; } TrashHandler trashHandler = getTrashHandler(); long classPK = getClassPK(); if ((classPK > 0) && (trashHandler != null)) { _trashRenderer = trashHandler.getTrashRenderer(getClassPK()); } return _trashRenderer; } public String getViewContentRedirectURL() throws PortalException { String redirect = ParamUtil.getString(_request, "redirect"); if (Validator.isNull(redirect)) { TrashHandler trashHandler = getTrashHandler(); ContainerModel parentContainerModel = trashHandler.getParentContainerModel(getClassPK()); PortletURL redirectURL = _liferayPortletResponse.createRenderURL(); if ((parentContainerModel != null) && (getClassNameId() > 0)) { String parentContainerModelClassName = parentContainerModel.getModelClassName(); redirectURL.setParameter("mvcPath", "/view_content.jsp"); redirectURL.setParameter("classNameId", String.valueOf(PortalUtil.getClassNameId(parentContainerModelClassName))); redirectURL.setParameter("classPK", String.valueOf(parentContainerModel.getContainerModelId())); } redirect = redirectURL.toString(); } return redirect; } public boolean isDescriptiveView() { if (Objects.equals(getDisplayStyle(), "descriptive")) { return true; } return false; } public boolean isIconView() { if (Objects.equals(getDisplayStyle(), "icon")) { return true; } return false; } public boolean isListView() { if (Objects.equals(getDisplayStyle(), "list")) { return true; } return false; } private String _containerModelRedirectURL; private String _displayStyle; private final LiferayPortletResponse _liferayPortletResponse; private String _navigation; private String _orderByCol; private String _orderByType; private final HttpServletRequest _request; private TrashEntry _trashEntry; private TrashHandler _trashHandler; private TrashRenderer _trashRenderer; }