Java tutorial
/* * Copyright (c) 2015-2020, Chen Rui * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.vnet.demo.service; import java.io.ByteArrayInputStream; import java.util.List; import org.apache.commons.lang3.StringUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.vnet.demo.dao.NoteDao; import com.vnet.demo.dao.NotebookDao; import com.vnet.demo.entity.Note; import com.vnet.demo.entity.Notebook; import com.vnet.demo.service.azure.storage.AzureStorageServiceFactory; import com.vnet.demo.utils.AbstractGenerator; @Service public class NoteService { @Autowired NoteDao noteDao; @Autowired NotebookDao notebookDao; @Autowired AzureStorageServiceFactory storageSessionFactory; public List<Note> getNotes(Long bookId, Long startId, Integer number) { List<Note> notes = noteDao.findNotesByBookId(bookId, startId, number); return notes; } public Note getNote(Long noteId) { Note note = noteDao.findById(noteId); if (StringUtils.isNotEmpty(note.getContext())) { note.setContext(getNoteContextFromStoragge(note.getContext())); note.getNotebook(); } note.getNotebook(); return note; } public Long getNotesNumber(Long bookId) { return noteDao.findNotesNumber(bookId); } public Note updateNote(Note note) { Notebook notebook = notebookDao.findById(1L); note.setNotebook(notebook); AbstractGenerator generator = new AbstractGenerator(note.getContext()); note.setSummary(generator.generate(100)); note.setContext(this.saveNoteContextToStoragge(note.getContext())); noteDao.update(note); return note; } public Note saveNote(Note note) { Notebook notebook = notebookDao.findById(1L); note.setNotebook(notebook); AbstractGenerator generator = new AbstractGenerator(note.getContext()); note.setSummary(generator.generate(100)); note.setContext(this.saveNoteContextToStoragge(note.getContext())); noteDao.save(note); return note; } public void deleteNote(Long noteId) { noteDao.delete(noteId); } private String saveNoteContextToStoragge(String context) { String name = "test.html"; ByteArrayInputStream stream = new ByteArrayInputStream(context.getBytes()); String htmlPath = storageSessionFactory.uploadFileToStorage(stream, name, new Long(context.length())); return htmlPath; } private String getNoteContextFromStoragge(String path) { return storageSessionFactory.getFileContentFromStorage(path); } }