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.asset.publisher.web.portlet; import com.liferay.asset.constants.AssetWebKeys; import com.liferay.asset.publisher.web.configuration.AssetPublisherPortletInstanceConfiguration; import com.liferay.asset.publisher.web.configuration.AssetPublisherWebConfiguration; import com.liferay.asset.publisher.web.constants.AssetPublisherPortletKeys; import com.liferay.asset.publisher.web.constants.AssetPublisherWebKeys; import com.liferay.asset.publisher.web.internal.action.AssetEntryActionRegistry; import com.liferay.asset.publisher.web.internal.util.AssetPublisherWebUtil; import com.liferay.asset.publisher.web.util.AssetPublisherCustomizer; import com.liferay.asset.publisher.web.util.AssetPublisherCustomizerRegistry; import com.liferay.asset.publisher.web.util.AssetRSSUtil; import com.liferay.asset.util.AssetHelper; import com.liferay.dynamic.data.mapping.model.DDMStructure; import com.liferay.dynamic.data.mapping.storage.Field; import com.liferay.dynamic.data.mapping.storage.Fields; import com.liferay.dynamic.data.mapping.util.DDMUtil; import com.liferay.portal.configuration.metatype.bnd.util.ConfigurableUtil; import com.liferay.portal.kernel.exception.NoSuchGroupException; import com.liferay.portal.kernel.json.JSONFactoryUtil; import com.liferay.portal.kernel.json.JSONObject; import com.liferay.portal.kernel.log.Log; import com.liferay.portal.kernel.log.LogFactoryUtil; import com.liferay.portal.kernel.portlet.PortletIdCodec; import com.liferay.portal.kernel.portlet.bridges.mvc.MVCPortlet; import com.liferay.portal.kernel.security.auth.PrincipalException; import com.liferay.portal.kernel.service.ServiceContext; import com.liferay.portal.kernel.service.ServiceContextFactory; import com.liferay.portal.kernel.servlet.SessionErrors; import com.liferay.portal.kernel.theme.PortletDisplay; import com.liferay.portal.kernel.theme.ThemeDisplay; import com.liferay.portal.kernel.util.ContentTypes; import com.liferay.portal.kernel.util.DateFormatFactoryUtil; import com.liferay.portal.kernel.util.GetterUtil; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.Portal; import com.liferay.portal.kernel.util.WebKeys; import java.io.IOException; import java.io.OutputStream; import java.io.Serializable; import java.text.DateFormat; import java.util.Date; import java.util.Map; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.Portlet; import javax.portlet.PortletException; import javax.portlet.PortletPreferences; import javax.portlet.RenderRequest; import javax.portlet.RenderResponse; import javax.portlet.ResourceRequest; import javax.portlet.ResourceResponse; import javax.servlet.ServletException; import org.osgi.service.component.annotations.Activate; import org.osgi.service.component.annotations.Component; import org.osgi.service.component.annotations.Modified; import org.osgi.service.component.annotations.Reference; /** * @author Eudaldo Alonso */ @Component(configurationPid = "com.liferay.asset.publisher.web.configuration.AssetPublisherWebConfiguration", immediate = true, property = { "com.liferay.portlet.add-default-resource=true", "com.liferay.portlet.css-class-wrapper=portlet-asset-publisher", "com.liferay.portlet.display-category=category.cms", "com.liferay.portlet.display-category=category.highlighted", "com.liferay.portlet.header-portlet-css=/css/main.css", "com.liferay.portlet.icon=/icons/asset_publisher.png", "com.liferay.portlet.instanceable=true", "com.liferay.portlet.preferences-owned-by-group=true", "com.liferay.portlet.private-request-attributes=false", "com.liferay.portlet.private-session-attributes=false", "com.liferay.portlet.render-weight=50", "com.liferay.portlet.scopeable=false", "com.liferay.portlet.use-default-template=true", "javax.portlet.display-name=Asset Publisher", "javax.portlet.expiration-cache=0", "javax.portlet.init-param.template-path=/", "javax.portlet.init-param.view-template=/view.jsp", "javax.portlet.name=" + AssetPublisherPortletKeys.ASSET_PUBLISHER, "javax.portlet.resource-bundle=content.Language", "javax.portlet.security-role-ref=power-user,user", "javax.portlet.supported-public-render-parameter=categoryId", "javax.portlet.supported-public-render-parameter=resetCur", "javax.portlet.supported-public-render-parameter=tag", "javax.portlet.supported-public-render-parameter=tags", "javax.portlet.supports.mime-type=text/html" }, service = { AssetPublisherPortlet.class, Portlet.class }) public class AssetPublisherPortlet extends MVCPortlet { public void getFieldValue(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws PortletException { ThemeDisplay themeDisplay = (ThemeDisplay) resourceRequest.getAttribute(WebKeys.THEME_DISPLAY); try { ServiceContext serviceContext = ServiceContextFactory.getInstance(resourceRequest); long structureId = ParamUtil.getLong(resourceRequest, "structureId"); Fields fields = (Fields) serviceContext.getAttribute(Fields.class.getName() + structureId); if (fields == null) { String fieldsNamespace = ParamUtil.getString(resourceRequest, "fieldsNamespace"); fields = DDMUtil.getFields(structureId, fieldsNamespace, serviceContext); } String fieldName = ParamUtil.getString(resourceRequest, "name"); Field field = fields.get(fieldName); Serializable fieldValue = field.getValue(themeDisplay.getLocale(), 0); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); if (fieldValue != null) { jsonObject.put("success", true); } else { jsonObject.put("success", false); writeJSON(resourceRequest, resourceResponse, jsonObject); return; } DDMStructure ddmStructure = field.getDDMStructure(); String type = ddmStructure.getFieldType(fieldName); Serializable displayValue = DDMUtil.getDisplayFieldValue(themeDisplay, fieldValue, type); jsonObject.put("displayValue", String.valueOf(displayValue)); if (fieldValue instanceof Boolean) { jsonObject.put("value", (Boolean) fieldValue); } else if (fieldValue instanceof Date) { DateFormat dateFormat = DateFormatFactoryUtil.getSimpleDateFormat("yyyyMM ddHHmmss"); jsonObject.put("value", dateFormat.format(fieldValue)); } else if (fieldValue instanceof Double) { jsonObject.put("value", (Double) fieldValue); } else if (fieldValue instanceof Float) { jsonObject.put("value", (Float) fieldValue); } else if (fieldValue instanceof Integer) { jsonObject.put("value", (Integer) fieldValue); } else if (fieldValue instanceof Number) { jsonObject.put("value", String.valueOf(fieldValue)); } else { jsonObject.put("value", (String) fieldValue); } writeJSON(resourceRequest, resourceResponse, jsonObject); } catch (Exception e) { throw new PortletException(e); } } public void getRSS(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws IOException { PortletPreferences portletPreferences = resourceRequest.getPreferences(); boolean enableRss = GetterUtil.getBoolean(portletPreferences.getValue("enableRss", null)); if (!portal.isRSSFeedsEnabled() || !enableRss) { try { portal.sendRSSFeedsDisabledError(resourceRequest, resourceResponse); } catch (ServletException se) { } return; } resourceResponse.setContentType(ContentTypes.TEXT_XML_UTF8); try (OutputStream outputStream = resourceResponse.getPortletOutputStream()) { String rootPortletId = PortletIdCodec.decodePortletName(portal.getPortletId(resourceRequest)); AssetPublisherCustomizer assetPublisherCustomizer = assetPublisherCustomizerRegistry .getAssetPublisherCustomizer(rootPortletId); resourceRequest.setAttribute(AssetPublisherWebKeys.ASSET_PUBLISHER_CUSTOMIZER, assetPublisherCustomizer); resourceRequest.setAttribute(AssetPublisherWebKeys.ASSET_PUBLISHER_WEB_UTIL, assetPublisherWebUtil); byte[] bytes = AssetRSSUtil.getRSS(resourceRequest, resourceResponse); outputStream.write(bytes); } catch (Exception e) { _log.error("Unable to get RSS feed", e); } } @Override public void render(RenderRequest renderRequest, RenderResponse renderResponse) throws IOException, PortletException { renderRequest.setAttribute(AssetPublisherWebKeys.ASSET_PUBLISHER_WEB_UTIL, assetPublisherWebUtil); super.render(renderRequest, renderResponse); } @Override public void serveResource(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws IOException, PortletException { String resourceID = GetterUtil.getString(resourceRequest.getResourceID()); if (resourceID.equals("getFieldValue")) { getFieldValue(resourceRequest, resourceResponse); } else if (resourceID.equals("getRSS")) { getRSS(resourceRequest, resourceResponse); } else { super.serveResource(resourceRequest, resourceResponse); } } public void subscribe(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); assetPublisherWebUtil.subscribe(themeDisplay.getPermissionChecker(), themeDisplay.getScopeGroupId(), themeDisplay.getPlid(), themeDisplay.getPpid()); } public void unsubscribe(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); assetPublisherWebUtil.unsubscribe(themeDisplay.getPermissionChecker(), themeDisplay.getPlid(), themeDisplay.getPpid()); } @Activate @Modified protected void activate(Map<String, Object> properties) { assetPublisherWebConfiguration = ConfigurableUtil.createConfigurable(AssetPublisherWebConfiguration.class, properties); } @Override protected void doDispatch(RenderRequest renderRequest, RenderResponse renderResponse) throws IOException, PortletException { try { renderRequest.setAttribute(AssetPublisherWebKeys.ASSET_ENTRY_ACTION_REGISTRY, assetEntryActionRegistry); renderRequest.setAttribute(AssetWebKeys.ASSET_HELPER, assetHelper); String rootPortletId = PortletIdCodec.decodePortletName(portal.getPortletId(renderRequest)); AssetPublisherCustomizer assetPublisherCustomizer = assetPublisherCustomizerRegistry .getAssetPublisherCustomizer(rootPortletId); renderRequest.setAttribute(AssetPublisherWebKeys.ASSET_PUBLISHER_CUSTOMIZER, assetPublisherCustomizer); renderRequest.setAttribute(AssetPublisherWebKeys.ASSET_PUBLISHER_WEB_CONFIGURATION, assetPublisherWebConfiguration); ThemeDisplay themeDisplay = (ThemeDisplay) renderRequest.getAttribute(WebKeys.THEME_DISPLAY); PortletDisplay portletDisplay = themeDisplay.getPortletDisplay(); AssetPublisherPortletInstanceConfiguration assetPublisherPortletInstanceConfiguration = portletDisplay .getPortletInstanceConfiguration(AssetPublisherPortletInstanceConfiguration.class); renderRequest.setAttribute(AssetPublisherWebKeys.ASSET_PUBLISHER_PORTLET_INSTANCE_CONFIGURATION, assetPublisherPortletInstanceConfiguration); renderRequest.setAttribute(WebKeys.SINGLE_PAGE_APPLICATION_CLEAR_CACHE, Boolean.TRUE); } catch (Exception e) { _log.error("Unable to get asset publisher customizer", e); } if (SessionErrors.contains(renderRequest, NoSuchGroupException.class.getName()) || SessionErrors.contains(renderRequest, PrincipalException.getNestedClasses())) { include("/error.jsp", renderRequest, renderResponse); } else { super.doDispatch(renderRequest, renderResponse); } } @Override protected boolean isSessionErrorException(Throwable cause) { if (cause instanceof NoSuchGroupException || cause instanceof PrincipalException) { return true; } return false; } @Reference protected AssetEntryActionRegistry assetEntryActionRegistry; @Reference protected AssetHelper assetHelper; @Reference protected AssetPublisherCustomizerRegistry assetPublisherCustomizerRegistry; protected AssetPublisherWebConfiguration assetPublisherWebConfiguration; @Reference protected AssetPublisherWebUtil assetPublisherWebUtil; @Reference protected Portal portal; private static final Log _log = LogFactoryUtil.getLog(AssetPublisherPortlet.class); }