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.screens.service.impl; import com.liferay.asset.kernel.model.AssetEntry; import com.liferay.asset.kernel.service.persistence.AssetEntryQuery; import com.liferay.asset.publisher.web.util.AssetPublisherUtil; import com.liferay.blogs.model.BlogsEntry; import com.liferay.blogs.service.BlogsEntryService; import com.liferay.document.library.kernel.model.DLFileEntry; import com.liferay.dynamic.data.lists.model.DDLRecord; import com.liferay.journal.model.JournalArticle; import com.liferay.journal.model.JournalArticleResource; import com.liferay.journal.service.permission.JournalArticlePermission; import com.liferay.petra.string.StringPool; import com.liferay.portal.kernel.dao.orm.DynamicQuery; import com.liferay.portal.kernel.dao.orm.DynamicQueryFactoryUtil; import com.liferay.portal.kernel.dao.orm.Property; import com.liferay.portal.kernel.dao.orm.PropertyFactoryUtil; import com.liferay.portal.kernel.exception.PortalException; import com.liferay.portal.kernel.exception.SystemException; import com.liferay.portal.kernel.json.JSONArray; import com.liferay.portal.kernel.json.JSONFactoryUtil; import com.liferay.portal.kernel.json.JSONObject; import com.liferay.portal.kernel.model.Layout; import com.liferay.portal.kernel.model.PortletItem; import com.liferay.portal.kernel.model.User; import com.liferay.portal.kernel.repository.model.FileEntry; import com.liferay.portal.kernel.security.permission.ActionKeys; import com.liferay.portal.kernel.security.permission.PermissionChecker; import com.liferay.portal.kernel.security.permission.PermissionCheckerFactoryUtil; import com.liferay.portal.kernel.util.GetterUtil; import com.liferay.portal.kernel.util.HtmlUtil; import com.liferay.portal.kernel.util.PortalUtil; import com.liferay.portal.kernel.util.PortletKeys; import com.liferay.portal.kernel.util.StringBundler; import com.liferay.portal.kernel.util.URLCodec; import com.liferay.portal.spring.extender.service.ServiceReference; import com.liferay.portlet.asset.service.permission.AssetEntryPermission; import com.liferay.screens.service.base.ScreensAssetEntryServiceBaseImpl; import java.util.ArrayList; import java.util.List; import java.util.Locale; import javax.portlet.PortletPreferences; /** * @author Jos Manuel Navarro */ public class ScreensAssetEntryServiceImpl extends ScreensAssetEntryServiceBaseImpl { @Override public JSONArray getAssetEntries(AssetEntryQuery assetEntryQuery, Locale locale) throws PortalException { List<AssetEntry> assetEntries = assetEntryLocalService.getEntries(assetEntryQuery); assetEntries = filterAssetEntries(assetEntries); return toJSONArray(assetEntries, locale); } @Override public JSONArray getAssetEntries(long companyId, long groupId, String portletItemName, Locale locale, int max) throws PortalException { DynamicQuery dynamicQuery = DynamicQueryFactoryUtil.forClass(PortletItem.class); Property property = PropertyFactoryUtil.forName("name"); dynamicQuery.add(property.eq(portletItemName)); dynamicQuery.setLimit(0, 1); List<PortletItem> portletItems = portletItemLocalService.dynamicQuery(dynamicQuery); if (portletItems.isEmpty()) { throw new PortalException("No portlet items associated with portlet item name " + portletItemName); } PortletItem portletItem = portletItems.get(0); PortletPreferences portletPreferences = portletPreferencesLocalService.getPreferences( portletItem.getCompanyId(), portletItem.getPortletItemId(), PortletKeys.PREFS_OWNER_TYPE_ARCHIVED, 0, portletItem.getPortletId()); String selectionStyle = GetterUtil.getString(portletPreferences.getValue("selectionStyle", null), "dynamic"); if (selectionStyle.equals("dynamic")) { if (max > 500) { max = 500; } List<Layout> layouts = layoutLocalService.getLayouts(companyId); if (!layouts.isEmpty()) { Layout layout = layouts.get(0); List<AssetEntry> assetEntries = _assetPublisherUtil.getAssetEntries(portletPreferences, layout, groupId, max, false); assetEntries = filterAssetEntries(assetEntries); return toJSONArray(assetEntries, locale); } else { return JSONFactoryUtil.createJSONArray(); } } else { try { PermissionChecker permissionChecker = PermissionCheckerFactoryUtil.create(getUser()); List<AssetEntry> assetEntries = _assetPublisherUtil.getAssetEntries(null, portletPreferences, permissionChecker, new long[] { groupId }, false, false, false); assetEntries = filterAssetEntries(assetEntries); return toJSONArray(assetEntries, locale); } catch (PortalException | SystemException e) { throw e; } catch (Exception e) { throw new PortalException(e); } } } @Override public JSONObject getAssetEntry(long entryId, Locale locale) throws PortalException { AssetEntry entry = assetEntryLocalService.getEntry(entryId); AssetEntryPermission.check(getPermissionChecker(), entry, ActionKeys.VIEW); return toJSONObject(entry, locale); } @Override public JSONObject getAssetEntry(String className, long classPK, Locale locale) throws PortalException { AssetEntryPermission.check(getPermissionChecker(), className, classPK, ActionKeys.VIEW); return toJSONObject(assetEntryLocalService.getEntry(className, classPK), locale); } protected List<AssetEntry> filterAssetEntries(List<AssetEntry> assetEntries) throws PortalException { List<AssetEntry> filteredAssetEntries = new ArrayList<>(assetEntries.size()); for (AssetEntry assetEntry : assetEntries) { if (AssetEntryPermission.contains(getPermissionChecker(), assetEntry, ActionKeys.VIEW)) { filteredAssetEntries.add(assetEntry); } } return filteredAssetEntries; } protected JSONObject getAssetObjectJSONObject(AssetEntry assetEntry, Locale locale) throws PortalException { String className = assetEntry.getClassName(); if (className.equals(BlogsEntry.class.getName())) { return getBlogsEntryJSONObject(assetEntry); } else if (className.equals(DLFileEntry.class.getName())) { return getFileEntryJSONObject(assetEntry); } else if (className.equals(DDLRecord.class.getName())) { return screensDDLRecordService.getDDLRecord(assetEntry.getClassPK(), locale); } else if (className.equals(JournalArticle.class.getName())) { return getJournalArticleJSONObject(assetEntry); } else if (className.equals(User.class.getName())) { return getUserJSONObject(assetEntry); } return JSONFactoryUtil.createJSONObject(); } protected JSONObject getBlogsEntryJSONObject(AssetEntry assetEntry) throws PortalException { BlogsEntry blogsEntry = _blogsEntryService.getEntry(assetEntry.getClassPK()); JSONObject blogsEntryJSONObject = JSONFactoryUtil.createJSONObject(); blogsEntryJSONObject.put("blogsEntry", JSONFactoryUtil.createJSONObject(JSONFactoryUtil.looseSerialize(blogsEntry))); return blogsEntryJSONObject; } protected JSONObject getFileEntryJSONObject(AssetEntry assetEntry) throws PortalException { FileEntry fileEntry = dlAppService.getFileEntry(assetEntry.getClassPK()); JSONObject fileEntryJSONObject = JSONFactoryUtil.createJSONObject(); fileEntryJSONObject.put("fileEntry", JSONFactoryUtil.createJSONObject(JSONFactoryUtil.looseSerialize(fileEntry))); fileEntryJSONObject.put("url", getFileEntryPreviewURL(fileEntry)); return fileEntryJSONObject; } protected String getFileEntryPreviewURL(FileEntry fileEntry) { StringBundler sb = new StringBundler(9); sb.append(PortalUtil.getPathContext()); sb.append("/documents/"); sb.append(fileEntry.getRepositoryId()); sb.append(StringPool.SLASH); sb.append(fileEntry.getFolderId()); sb.append(StringPool.SLASH); sb.append(URLCodec.encodeURL(HtmlUtil.unescape(fileEntry.getTitle()))); sb.append(StringPool.SLASH); sb.append(fileEntry.getUuid()); return sb.toString(); } protected JSONObject getJournalArticleJSONObject(AssetEntry assetEntry) throws PortalException { JournalArticle journalArticle = null; JournalArticlePermission.check(getPermissionChecker(), assetEntry.getClassPK(), ActionKeys.VIEW); try { journalArticle = journalArticleLocalService.getArticle(assetEntry.getClassPK()); } catch (Exception nsae) { JournalArticleResource journalArticleResource = journalArticleResourceLocalService .getArticleResource(assetEntry.getClassPK()); journalArticle = journalArticleLocalService.getLatestArticle(journalArticleResource.getGroupId(), journalArticleResource.getArticleId()); } JSONObject journalArticleJSONObject = JSONFactoryUtil.createJSONObject(); journalArticleJSONObject.put("DDMStructure", JSONFactoryUtil.createJSONObject(JSONFactoryUtil.looseSerialize(journalArticle.getDDMStructure()))); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(JSONFactoryUtil.looseSerialize(journalArticle)); journalArticleJSONObject.put("modelAttributes", jsonObject); journalArticleJSONObject.put("modelValues", jsonObject.getString("content")); jsonObject.remove("content"); return journalArticleJSONObject; } protected JSONObject getUserJSONObject(AssetEntry assetEntry) throws PortalException { User user = userService.getUserById(assetEntry.getClassPK()); JSONObject userJSONObject = JSONFactoryUtil.createJSONObject(); userJSONObject.put("user", JSONFactoryUtil.createJSONObject(JSONFactoryUtil.looseSerialize(user))); return userJSONObject; } protected JSONArray toJSONArray(List<AssetEntry> assetEntries, Locale locale) throws PortalException { JSONArray jsonArray = JSONFactoryUtil.createJSONArray(); for (AssetEntry assetEntry : assetEntries) { JSONObject jsonObject = toJSONObject(assetEntry, locale); jsonArray.put(jsonObject); } return jsonArray; } protected JSONObject toJSONObject(AssetEntry assetEntry, Locale locale) throws PortalException { JSONObject jsonObject = JSONFactoryUtil.createJSONObject(JSONFactoryUtil.looseSerialize(assetEntry)); jsonObject.put("className", assetEntry.getClassName()); jsonObject.put("description", assetEntry.getDescription(locale)); jsonObject.put("locale", String.valueOf(locale)); jsonObject.put("object", getAssetObjectJSONObject(assetEntry, locale)); jsonObject.put("summary", assetEntry.getSummary(locale)); jsonObject.put("title", assetEntry.getTitle(locale)); return jsonObject; } @ServiceReference(type = AssetPublisherUtil.class) private AssetPublisherUtil _assetPublisherUtil; @ServiceReference(type = BlogsEntryService.class) private BlogsEntryService _blogsEntryService; }