Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 ro.nextreports.designer.persistence; import ro.nextreports.engine.Report; import ro.nextreports.engine.XStreamFactory; import com.thoughtworks.xstream.XStream; import java.io.*; import java.util.List; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.text.Collator; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import ro.nextreports.designer.Globals; import ro.nextreports.designer.datasource.DataSource; import ro.nextreports.designer.datasource.DataSourceManager; import ro.nextreports.designer.datasource.DefaultDataSourceManager; /** * Created by IntelliJ IDEA. * User: mihai.panaitescu * Date: Apr 10, 2006 * Time: 1:09:28 PM */ public class FileReportPersistence implements ReportPersistence { public static final String OUTPUT_DIR = "output"; public static final String CONNECTIONS_DIR = Globals.USER_DATA_DIR + "/" + OUTPUT_DIR; public static final String REPORT_EXTENSION_SEPARATOR = "."; public static final String REPORT_EXTENSION = "query"; public static final String REPORT_FULL_EXTENSION = REPORT_EXTENSION_SEPARATOR + REPORT_EXTENSION; public static final String QUERIES_FOLDER = "Queries"; public static final String REPORTS_FOLDER = "Reports"; public static final String CHARTS_FOLDER = "Charts"; public static final String SUBREPORT_TEMP_DIR = "~temporary"; private static Log LOG = LogFactory.getLog(FileReportPersistence.class); public boolean saveReport(Report report, String path) { XStream xstream = XStreamFactory.createXStream(); DataSourceManager manager = DefaultDataSourceManager.getInstance(); DataSource ds = manager.getConnectedDataSource(); FileOutputStream fos = null; try { File parent = new File(getConnectedDataSourceRelativePath()); if (!parent.exists()) { parent.mkdirs(); new File(getQueriesRelativePath()).mkdirs(); new File(getReportsRelativePath()).mkdirs(); new File(getChartsRelativePath()).mkdirs(); } fos = new FileOutputStream(path); xstream.toXML(report, fos); fos.flush(); return true; } catch (Exception e1) { e1.printStackTrace(); LOG.error(e1.getMessage(), e1); return false; } finally { if (fos != null) { try { fos.close(); } catch (IOException e1) { e1.printStackTrace(); } } } } public Report loadReport(String path) { XStream xstream = XStreamFactory.createXStream(); DataSourceManager manager = DefaultDataSourceManager.getInstance(); DataSource ds = manager.getConnectedDataSource(); FileInputStream fis = null; InputStreamReader reader = null; try { fis = new FileInputStream(path); reader = new InputStreamReader(fis, "UTF-8"); return (Report) xstream.fromXML(reader); } catch (Exception e1) { e1.printStackTrace(); LOG.error(e1.getMessage(), e1); return null; } finally { if (fis != null) { try { fis.close(); } catch (IOException e1) { e1.printStackTrace(); } } } } public List<File> getReportFiles(String folderPath) { List<File> result = new ArrayList<File>(); DataSourceManager manager = DefaultDataSourceManager.getInstance(); DataSource ds = manager.getConnectedDataSource(); if (ds != null) { File file = new File(folderPath); File[] files = file.listFiles(); if (files != null) { for (int i = 0, size = files.length; i < size; i++) { int index = files[i].getName().indexOf(REPORT_EXTENSION_SEPARATOR + REPORT_EXTENSION); if (index != -1) { if (files[i].getName().endsWith(REPORT_EXTENSION_SEPARATOR + REPORT_EXTENSION)) { result.add(files[i]); } } else { if (file.isDirectory()) { result.add(files[i]); } } } } } Collections.sort(result, new Comparator<File>() { public int compare(File o1, File o2) { if ((o1.isDirectory() && o2.isDirectory()) || (o1.isFile() && o2.isFile())) { return Collator.getInstance().compare(o1.getName(), o2.getName()); } else { if (o1.isDirectory()) { return -1; } else { return 1; } } } }); return result; } public boolean deleteReport(String path) { File file = new File(path); return file.delete(); } public boolean renameReport(String oldName, String newName, String parentPath) { DataSourceManager manager = DefaultDataSourceManager.getInstance(); DataSource ds = manager.getConnectedDataSource(); File file = new File(parentPath + File.separator + oldName + REPORT_EXTENSION_SEPARATOR + REPORT_EXTENSION); File newFile = new File( parentPath + File.separator + newName + REPORT_EXTENSION_SEPARATOR + REPORT_EXTENSION); boolean result = file.renameTo(newFile); if (result) { if (file.getAbsolutePath().equals(Globals.getCurrentQueryAbsolutePath())) { Globals.setCurrentQueryAbsolutePath(newFile.getAbsolutePath()); } // change name in xml Report report = loadReport(newFile.getAbsolutePath()); report.setName(newName + REPORT_EXTENSION_SEPARATOR + REPORT_EXTENSION); saveReport(report, newFile.getAbsolutePath()); } return result; } public static String getConnectedDataSourceRelativePath() { return CONNECTIONS_DIR + File.separator + DefaultDataSourceManager.getInstance().getConnectedDataSource().getName(); } public static String getConnectedDataSourceAbsolutePath() { return new File(CONNECTIONS_DIR + File.separator + DefaultDataSourceManager.getInstance().getConnectedDataSource().getName()).getAbsolutePath(); } public static String getQueriesRelativePath() { return getConnectedDataSourceRelativePath() + File.separator + QUERIES_FOLDER; } public static String getQueriesAbsolutePath() { return new File(getQueriesRelativePath()).getAbsolutePath(); } public static String getReportsRelativePath() { return getConnectedDataSourceRelativePath() + File.separator + REPORTS_FOLDER; } public static String getReportsAbsolutePath() { return new File(getReportsRelativePath()).getAbsolutePath(); } public static String getChartsRelativePath() { return getConnectedDataSourceRelativePath() + File.separator + CHARTS_FOLDER; } public static String getChartsAbsolutePath() { return new File(getChartsRelativePath()).getAbsolutePath(); } }