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.document.library.web.internal.display.context; import com.liferay.document.library.display.context.DLMimeTypeDisplayContext; import com.liferay.document.library.display.context.DLViewFileVersionDisplayContext; import com.liferay.document.library.kernel.model.DLFileEntryConstants; import com.liferay.document.library.kernel.model.DLFileEntryMetadata; import com.liferay.document.library.kernel.model.DLFileVersion; import com.liferay.document.library.kernel.service.DLFileEntryMetadataLocalServiceUtil; import com.liferay.document.library.kernel.util.AudioProcessorUtil; import com.liferay.document.library.kernel.util.ImageProcessorUtil; import com.liferay.document.library.kernel.util.PDFProcessorUtil; import com.liferay.document.library.kernel.util.VideoProcessorUtil; import com.liferay.document.library.web.internal.display.context.logic.DLPortletInstanceSettingsHelper; import com.liferay.document.library.web.internal.display.context.logic.FileEntryDisplayContextHelper; import com.liferay.document.library.web.internal.display.context.logic.FileVersionDisplayContextHelper; import com.liferay.document.library.web.internal.display.context.logic.UIItemsBuilder; import com.liferay.document.library.web.internal.display.context.util.DLRequestHelper; import com.liferay.document.library.web.internal.display.context.util.JSPRenderer; import com.liferay.dynamic.data.mapping.exception.StorageException; import com.liferay.dynamic.data.mapping.kernel.DDMStructure; import com.liferay.dynamic.data.mapping.storage.DDMFormValues; import com.liferay.dynamic.data.mapping.storage.StorageEngine; import com.liferay.portal.kernel.exception.PortalException; import com.liferay.portal.kernel.exception.SystemException; import com.liferay.portal.kernel.language.LanguageUtil; import com.liferay.portal.kernel.repository.model.FileEntry; import com.liferay.portal.kernel.repository.model.FileShortcut; import com.liferay.portal.kernel.repository.model.FileVersion; import com.liferay.portal.kernel.servlet.taglib.ui.Menu; import com.liferay.portal.kernel.servlet.taglib.ui.MenuItem; import com.liferay.portal.kernel.servlet.taglib.ui.ToolbarItem; import com.liferay.portal.kernel.util.WebKeys; import java.io.IOException; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.Locale; import java.util.ResourceBundle; import java.util.UUID; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * @author Adolfo Prez */ public class DefaultDLViewFileVersionDisplayContext implements DLViewFileVersionDisplayContext { public DefaultDLViewFileVersionDisplayContext(HttpServletRequest request, HttpServletResponse response, FileShortcut fileShortcut, DLMimeTypeDisplayContext dlMimeTypeDisplayContext, ResourceBundle resourceBundle, StorageEngine storageEngine) throws PortalException { this(request, fileShortcut.getFileVersion(), fileShortcut, dlMimeTypeDisplayContext, resourceBundle, storageEngine); } public DefaultDLViewFileVersionDisplayContext(HttpServletRequest request, HttpServletResponse response, FileVersion fileVersion, DLMimeTypeDisplayContext dlMimeTypeDisplayContext, ResourceBundle resourceBundle, StorageEngine storageEngine) { this(request, fileVersion, null, dlMimeTypeDisplayContext, resourceBundle, storageEngine); } @Override public String getCssClassFileMimeType() { if (_dlMimeTypeDisplayContext == null) { return "file-icon-color-0"; } return _dlMimeTypeDisplayContext.getCssClassFileMimeType(_fileVersion.getMimeType()); } @Override public DDMFormValues getDDMFormValues(DDMStructure ddmStructure) throws PortalException { DLFileEntryMetadata dlFileEntryMetadata = DLFileEntryMetadataLocalServiceUtil .getFileEntryMetadata(ddmStructure.getStructureId(), _fileVersion.getFileVersionId()); return _storageEngine.getDDMFormValues(dlFileEntryMetadata.getDDMStorageId()); } @Override public DDMFormValues getDDMFormValues(long classPK) throws StorageException { return _storageEngine.getDDMFormValues(classPK); } @Override public List<DDMStructure> getDDMStructures() throws PortalException { if (_ddmStructures != null) { return _ddmStructures; } if (_fileVersionDisplayContextHelper.isDLFileVersion()) { DLFileVersion dlFileVersion = (DLFileVersion) _fileVersion.getModel(); _ddmStructures = dlFileVersion.getDDMStructures(); } else { _ddmStructures = Collections.emptyList(); } return _ddmStructures; } @Override public int getDDMStructuresCount() throws PortalException { List<DDMStructure> ddmStructures = getDDMStructures(); return ddmStructures.size(); } @Override public String getDiscussionClassName() { return DLFileEntryConstants.getClassName(); } @Override public long getDiscussionClassPK() { return _fileVersion.getFileEntryId(); } @Override public String getDiscussionLabel(Locale locale) { return LanguageUtil.get(_resourceBundle, "comments"); } @Override public Menu getMenu() throws PortalException { Menu menu = new Menu(); menu.setDirection("left-side"); menu.setMarkupView("lexicon"); menu.setMenuItems(_getMenuItems()); menu.setScroll(false); menu.setShowWhenSingleIcon(true); return menu; } @Override public List<ToolbarItem> getToolbarItems() throws PortalException { List<ToolbarItem> toolbarItems = new ArrayList<>(); _uiItemsBuilder.addDownloadToolbarItem(toolbarItems); _uiItemsBuilder.addOpenInMsOfficeToolbarItem(toolbarItems); _uiItemsBuilder.addEditToolbarItem(toolbarItems); _uiItemsBuilder.addMoveToolbarItem(toolbarItems); _uiItemsBuilder.addCheckoutToolbarItem(toolbarItems); _uiItemsBuilder.addCancelCheckoutToolbarItem(toolbarItems); _uiItemsBuilder.addCheckinToolbarItem(toolbarItems); _uiItemsBuilder.addPermissionsToolbarItem(toolbarItems); _uiItemsBuilder.addMoveToTheRecycleBinToolbarItem(toolbarItems); _uiItemsBuilder.addDeleteToolbarItem(toolbarItems); return toolbarItems; } @Override public UUID getUuid() { return _UUID; } @Override public boolean hasPreview() { if (AudioProcessorUtil.hasAudio(_fileVersion) || ImageProcessorUtil.hasImages(_fileVersion) || PDFProcessorUtil.hasImages(_fileVersion) || VideoProcessorUtil.hasVideo(_fileVersion)) { return true; } return false; } @Override public boolean isDownloadLinkVisible() throws PortalException { return _fileEntryDisplayContextHelper.isDownloadActionAvailable(); } @Override public boolean isVersionInfoVisible() { return true; } @Override public void renderPreview(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { JSPRenderer jspRenderer = new JSPRenderer("/document_library/view_file_entry_preview.jsp"); jspRenderer.setAttribute(WebKeys.DOCUMENT_LIBRARY_FILE_VERSION, _fileVersion); jspRenderer.render(request, response); } private DefaultDLViewFileVersionDisplayContext(HttpServletRequest request, FileVersion fileVersion, FileShortcut fileShortcut, DLMimeTypeDisplayContext dlMimeTypeDisplayContext, ResourceBundle resourceBundle, StorageEngine storageEngine) { try { _fileVersion = fileVersion; _dlMimeTypeDisplayContext = dlMimeTypeDisplayContext; _resourceBundle = resourceBundle; _storageEngine = storageEngine; DLRequestHelper dlRequestHelper = new DLRequestHelper(request); _dlPortletInstanceSettingsHelper = new DLPortletInstanceSettingsHelper(dlRequestHelper); _fileEntryDisplayContextHelper = new FileEntryDisplayContextHelper( dlRequestHelper.getPermissionChecker(), _getFileEntry(fileVersion)); _fileVersionDisplayContextHelper = new FileVersionDisplayContextHelper(fileVersion); if (fileShortcut == null) { _uiItemsBuilder = new UIItemsBuilder(request, fileVersion, _resourceBundle); } else { _uiItemsBuilder = new UIItemsBuilder(request, fileShortcut, _resourceBundle); } } catch (PortalException pe) { throw new SystemException("Unable to build DefaultDLViewFileVersionDisplayContext for " + fileVersion, pe); } } private FileEntry _getFileEntry(FileVersion fileVersion) throws PortalException { if (fileVersion != null) { return fileVersion.getFileEntry(); } return null; } private List<MenuItem> _getMenuItems() throws PortalException { List<MenuItem> menuItems = new ArrayList<>(); if (_dlPortletInstanceSettingsHelper.isShowActions()) { _uiItemsBuilder.addDownloadMenuItem(menuItems); _uiItemsBuilder.addOpenInMsOfficeMenuItem(menuItems); _uiItemsBuilder.addViewOriginalFileMenuItem(menuItems); _uiItemsBuilder.addEditMenuItem(menuItems); _uiItemsBuilder.addMoveMenuItem(menuItems); _uiItemsBuilder.addCheckoutMenuItem(menuItems); _uiItemsBuilder.addCheckinMenuItem(menuItems); _uiItemsBuilder.addCancelCheckoutMenuItem(menuItems); _uiItemsBuilder.addPermissionsMenuItem(menuItems); _uiItemsBuilder.addDeleteMenuItem(menuItems); } return menuItems; } private static final UUID _UUID = UUID.fromString("85F6C50E-3893-4E32-9D63-208528A503FA"); private List<DDMStructure> _ddmStructures; private final DLMimeTypeDisplayContext _dlMimeTypeDisplayContext; private final DLPortletInstanceSettingsHelper _dlPortletInstanceSettingsHelper; private final FileEntryDisplayContextHelper _fileEntryDisplayContextHelper; private final FileVersion _fileVersion; private final FileVersionDisplayContextHelper _fileVersionDisplayContextHelper; private final ResourceBundle _resourceBundle; private final StorageEngine _storageEngine; private final UIItemsBuilder _uiItemsBuilder; }