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.opensocial.editor.portlet; import com.liferay.opensocial.admin.portlet.AdminPortlet; import com.liferay.opensocial.model.Gadget; import com.liferay.opensocial.service.GadgetLocalServiceUtil; import com.liferay.opensocial.service.permission.GadgetPermission; import com.liferay.opensocial.shindig.util.ShindigUtil; import com.liferay.opensocial.util.ActionKeys; 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.repository.model.FileEntry; import com.liferay.portal.kernel.repository.model.Folder; import com.liferay.portal.kernel.util.Constants; import com.liferay.portal.kernel.util.HttpUtil; import com.liferay.portal.kernel.util.ListUtil; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.StringPool; import com.liferay.portal.kernel.util.StringUtil; import com.liferay.portal.kernel.util.WebKeys; import com.liferay.portal.security.permission.PermissionChecker; import com.liferay.portal.service.ServiceContext; import com.liferay.portal.service.ServiceContextFactory; import com.liferay.portal.theme.ThemeDisplay; import com.liferay.portal.util.PortalUtil; import com.liferay.portlet.documentlibrary.service.DLAppServiceUtil; import com.liferay.portlet.documentlibrary.util.comparator.RepositoryModelNameComparator; import java.io.IOException; import java.util.List; import java.util.Map; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletException; import javax.portlet.ResourceRequest; import javax.portlet.ResourceResponse; import org.apache.shindig.gadgets.spec.Feature; import org.apache.shindig.gadgets.spec.GadgetSpec; import org.apache.shindig.gadgets.spec.ModulePrefs; /** * @author Dennis Ju */ public class EditorPortlet extends AdminPortlet { @Override public void serveResource(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws IOException, PortletException { try { String resourceID = resourceRequest.getResourceID(); if (resourceID.equals("addFileEntry")) { serveAddFileEntry(resourceRequest, resourceResponse); } else if (resourceID.equals("addFolder")) { serveAddFolder(resourceRequest, resourceResponse); } else if (resourceID.equals("deleteFileEntry")) { serveDeleteFileEntry(resourceRequest, resourceResponse); } else if (resourceID.equals("deleteFolder")) { serveDeleteFolder(resourceRequest, resourceResponse); } else if (resourceID.equals("getFileEntryContent")) { serveGetFileEntryContent(resourceRequest, resourceResponse); } else if (resourceID.equals("getFolderChildren")) { serveGetFolderChildren(resourceRequest, resourceResponse); } else if (resourceID.equals("getRenderParameters")) { serveGetRenderParameters(resourceRequest, resourceResponse); } else if (resourceID.equals("updateFileEntryContent")) { serveUpdateFileEntryContent(resourceRequest, resourceResponse); } else if (resourceID.equals("updateFileEntryTitle")) { serveUpdateFileEntryTitle(resourceRequest, resourceResponse); } else if (resourceID.equals("updateFolderName")) { serveUpdateFolderName(resourceRequest, resourceResponse); } } catch (IOException ioe) { serveException(ioe, resourceRequest, resourceResponse); throw ioe; } catch (PortletException pe) { serveException(pe, resourceRequest, resourceResponse); throw pe; } catch (Exception e) { serveException(e, resourceRequest, resourceResponse); throw new PortletException(e); } } @Override public void updateGadget(ActionRequest actionRequest, ActionResponse actionResponse) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); PermissionChecker permissionChecker = themeDisplay.getPermissionChecker(); long groupId = themeDisplay.getScopeGroupId(); String cmd = ParamUtil.getString(actionRequest, Constants.CMD); if (cmd.equals(Constants.ADD)) { GadgetPermission.check(permissionChecker, groupId, ActionKeys.PUBLISH_GADGET); Gadget gadget = doAddGadget(actionRequest, actionResponse); String publishGadgetRedirect = ParamUtil.getString(actionRequest, "publishGadgetRedirect"); boolean unpublishPermission = GadgetPermission.contains(permissionChecker, groupId, gadget.getGadgetId(), ActionKeys.DELETE); publishGadgetRedirect = HttpUtil.addParameter(publishGadgetRedirect, "unpublishPermission", unpublishPermission); publishGadgetRedirect = HttpUtil.addParameter(publishGadgetRedirect, "gadgetId", gadget.getGadgetId()); actionResponse.sendRedirect(publishGadgetRedirect); } else { long gadgetId = ParamUtil.getLong(actionRequest, "gadgetId"); GadgetPermission.check(permissionChecker, groupId, gadgetId, ActionKeys.UPDATE); doUpdateGadget(actionRequest, actionResponse); } } protected void serveAddFileEntry(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) resourceRequest.getAttribute(WebKeys.THEME_DISPLAY); long folderId = ParamUtil.getLong(resourceRequest, "folderId"); Folder folder = DLAppServiceUtil.getFolder(folderId); String fileEntryTitle = ParamUtil.getString(resourceRequest, "fileEntryTitle"); String content = ParamUtil.getString(resourceRequest, "content"); byte[] bytes = content.getBytes(StringPool.UTF8); ServiceContext serviceContext = ServiceContextFactory.getInstance(resourceRequest); serviceContext.setAddGroupPermissions(true); serviceContext.setAddGuestPermissions(true); serviceContext.setAttribute("sourceFileName", fileEntryTitle); serviceContext.setScopeGroupId(folder.getGroupId()); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); FileEntry fileEntry = DLAppServiceUtil.addFileEntry(folder.getRepositoryId(), folderId, fileEntryTitle, resourceRequest.getContentType(), fileEntryTitle, StringPool.BLANK, StringPool.BLANK, bytes, serviceContext); jsonObject.put("fileEntryId", fileEntry.getFileEntryId()); String portalURL = PortalUtil.getPortalURL(themeDisplay); String fileEntryURL = ShindigUtil.getFileEntryURL(portalURL, fileEntry.getFileEntryId()); jsonObject.put("fileEntryURL", fileEntryURL); writeJSON(resourceRequest, resourceResponse, jsonObject); } protected void serveAddFolder(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { long parentFolderId = ParamUtil.getLong(resourceRequest, "parentFolderId"); Folder parentFolder = DLAppServiceUtil.getFolder(parentFolderId); String folderName = ParamUtil.getString(resourceRequest, "folderName"); ServiceContext serviceContext = ServiceContextFactory.getInstance(resourceRequest); serviceContext.setAddGroupPermissions(true); serviceContext.setAddGuestPermissions(true); serviceContext.setScopeGroupId(parentFolder.getGroupId()); Folder folder = DLAppServiceUtil.addFolder(parentFolder.getRepositoryId(), parentFolderId, folderName, StringPool.BLANK, serviceContext); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); jsonObject.put("folderId", folder.getFolderId()); writeJSON(resourceRequest, resourceResponse, jsonObject); } protected void serveDeleteFileEntry(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { long fileEntryId = ParamUtil.getLong(resourceRequest, "fileEntryId"); DLAppServiceUtil.deleteFileEntry(fileEntryId); } protected void serveDeleteFolder(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { long folderId = ParamUtil.getLong(resourceRequest, "folderId"); DLAppServiceUtil.deleteFolder(folderId); } protected void serveException(Exception exception, ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws IOException { JSONObject jsonError = JSONFactoryUtil.createJSONObject(); jsonError.put("message", exception.getLocalizedMessage()); jsonError.put("name", exception.getClass().getSimpleName()); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); jsonObject.put("error", jsonError); writeJSON(resourceRequest, resourceResponse, jsonObject); } protected void serveGetFileEntryContent(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { long fileEntryId = ParamUtil.getLong(resourceRequest, "fileEntryId"); FileEntry fileEntry = DLAppServiceUtil.getFileEntry(fileEntryId); String content = StringUtil.read(fileEntry.getContentStream()); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); jsonObject.put("content", content); writeJSON(resourceRequest, resourceResponse, jsonObject); } protected void serveGetFolderChildren(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) resourceRequest.getAttribute(WebKeys.THEME_DISPLAY); long repositoryId = ParamUtil.getLong(resourceRequest, "repositoryId"); long folderId = ParamUtil.getLong(resourceRequest, "folderId"); List<Folder> folders = DLAppServiceUtil.getFolders(repositoryId, folderId); folders = ListUtil.sort(folders, new RepositoryModelNameComparator(true)); JSONArray jsonArray = JSONFactoryUtil.createJSONArray(); for (Folder folder : folders) { JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); jsonObject.put("entryId", folder.getFolderId()); jsonObject.put("label", folder.getName()); jsonObject.put("leaf", false); jsonObject.put("type", "editor"); jsonArray.put(jsonObject); } boolean getFileEntries = ParamUtil.getBoolean(resourceRequest, "getFileEntries"); if (getFileEntries) { PermissionChecker permissionChecker = themeDisplay.getPermissionChecker(); List<FileEntry> fileEntries = DLAppServiceUtil.getFileEntries(repositoryId, folderId); fileEntries = ListUtil.sort(fileEntries, new RepositoryModelNameComparator(true)); for (FileEntry fileEntry : fileEntries) { JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); jsonObject.put("entryId", fileEntry.getFileEntryId()); String portalURL = PortalUtil.getPortalURL(themeDisplay); String fileEntryURL = ShindigUtil.getFileEntryURL(portalURL, fileEntry.getFileEntryId()); jsonObject.put("fileEntryURL", fileEntryURL); long gadgetId = 0; try { Gadget gadget = GadgetLocalServiceUtil.getGadget(themeDisplay.getCompanyId(), fileEntryURL); gadgetId = gadget.getGadgetId(); } catch (Exception e) { } jsonObject.put("gadgetId", gadgetId); jsonObject.put("label", fileEntry.getTitle()); jsonObject.put("leaf", true); JSONObject jsonPermissions = JSONFactoryUtil.createJSONObject(); if (gadgetId > 0) { boolean unpublishPermission = GadgetPermission.contains(permissionChecker, themeDisplay.getScopeGroupId(), gadgetId, ActionKeys.DELETE); jsonPermissions.put("unpublishPermission", unpublishPermission); } jsonObject.put("permissions", jsonPermissions); jsonObject.put("type", "editor"); jsonArray.put(jsonObject); } } writeJSON(resourceRequest, resourceResponse, jsonArray); } protected void serveGetRenderParameters(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { ThemeDisplay themeDisplay = (ThemeDisplay) resourceRequest.getAttribute(WebKeys.THEME_DISPLAY); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); String fileEntryURL = ParamUtil.getString(resourceRequest, "fileEntryURL"); GadgetSpec gadgetSpec = ShindigUtil.getGadgetSpec(fileEntryURL, true, true); ModulePrefs modulePrefs = gadgetSpec.getModulePrefs(); jsonObject.put("height", modulePrefs.getHeight()); long moduleId = ShindigUtil.getModuleId(resourceResponse.getNamespace()); jsonObject.put("moduleId", moduleId); Map<String, Feature> features = modulePrefs.getFeatures(); boolean requiresPubsub = features.containsKey("pubsub-2"); jsonObject.put("requiresPubsub", requiresPubsub); boolean scrolling = modulePrefs.getScrolling(); jsonObject.put("scrolling", scrolling); String ownerId = ShindigUtil.getOwnerId(themeDisplay.getLayout()); String portalURL = PortalUtil.getPortalURL(themeDisplay); String currentURL = PortalUtil.getCurrentURL(resourceRequest); String secureToken = ShindigUtil.createSecurityToken(ownerId, themeDisplay.getUserId(), fileEntryURL, portalURL, fileEntryURL, moduleId, currentURL); jsonObject.put("secureToken", secureToken); jsonObject.put("specUrl", fileEntryURL); writeJSON(resourceRequest, resourceResponse, jsonObject); } protected void serveUpdateFileEntryContent(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { long fileEntryId = ParamUtil.getLong(resourceRequest, "fileEntryId"); FileEntry fileEntry = DLAppServiceUtil.getFileEntry(fileEntryId); String content = ParamUtil.getString(resourceRequest, "content"); byte[] bytes = content.getBytes(StringPool.UTF8); ServiceContext serviceContext = ServiceContextFactory.getInstance(resourceRequest); DLAppServiceUtil.updateFileEntry(fileEntryId, fileEntry.getTitle(), resourceRequest.getContentType(), fileEntry.getTitle(), fileEntry.getDescription(), StringPool.BLANK, false, bytes, serviceContext); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); writeJSON(resourceRequest, resourceResponse, jsonObject); } protected void serveUpdateFileEntryTitle(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { long fileEntryId = ParamUtil.getLong(resourceRequest, "fileEntryId"); FileEntry fileEntry = DLAppServiceUtil.getFileEntry(fileEntryId); String fileEntryTitle = ParamUtil.getString(resourceRequest, "fileEntryTitle"); byte[] bytes = null; ServiceContext serviceContext = ServiceContextFactory.getInstance(resourceRequest); DLAppServiceUtil.updateFileEntry(fileEntryId, fileEntryTitle, resourceRequest.getContentType(), fileEntryTitle, fileEntry.getDescription(), StringPool.BLANK, false, bytes, serviceContext); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); writeJSON(resourceRequest, resourceResponse, jsonObject); } protected void serveUpdateFolderName(ResourceRequest resourceRequest, ResourceResponse resourceResponse) throws Exception { long folderId = ParamUtil.getLong(resourceRequest, "folderId"); Folder folder = DLAppServiceUtil.getFolder(folderId); String folderName = ParamUtil.getString(resourceRequest, "folderName"); ServiceContext serviceContext = ServiceContextFactory.getInstance(resourceRequest); DLAppServiceUtil.updateFolder(folderId, folderName, folder.getDescription(), serviceContext); JSONObject jsonObject = JSONFactoryUtil.createJSONObject(); writeJSON(resourceRequest, resourceResponse, jsonObject); } }