Java tutorial
/* * ImportWizard.java * * This file is part of the STS-Tool project. * Copyright (c) 2011-2012 "University of Trento - DISI" All rights reserved. * * Is strictly forbidden to remove this copyright notice from this source code. * * Disclaimer of Warranty: * STS-Tool (this software) is provided "as-is" and without warranty of any kind, * express, implied or otherwise, including without limitation, any warranty of * merchantability or fitness for a particular purpose. * In no event shall the copyright holder or contributors be liable for any direct, * indirect, incidental, special, exemplary, or consequential damages * including, but not limited to, procurement of substitute goods or services; * loss of use, data, or profits; or business interruption) however caused and on * any theory of liability, whether in contract, strict liability, or tort (including * negligence or otherwise) arising in any way out of the use of this software, even * if advised of the possibility of such damage. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License version 3 * as published by the Free Software Foundation with the addition of the * following permission added to Section 15 as permitted in Section 7(a): * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY * "University of Trento - DISI","University of Trento - DISI" DISCLAIMS THE * WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. * * See the GNU Affero General Public License for more details. * You should have received a copy of the GNU Affero General Public License * along with this program; if not, see http://www.gnu.org/licenses or write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA, 02110-1301 USA, or download the license from the following URL: * http://www.sts-tool.eu/License.php * * For more information, please contact STS-Tool group at this * address: ststool@disi.unitn.it * */ package eu.aniketos.wp1.ststool.diagram.custom.imports; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.List; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.emf.common.ui.URIEditorInput; import org.eclipse.emf.common.util.URI; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.operation.IRunnableWithProgress; import org.eclipse.jface.wizard.Wizard; import org.eclipse.osgi.util.NLS; import org.eclipse.ui.IEditorDescriptor; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.PartInitException; import eu.aniketos.wp1.ststool.diagram.part.Messages; public class ImportWizard extends Wizard implements IRunnableWithProgress { private ImportWizardPage page1; private IWorkbench workbench = null; public ImportWizard(IWorkbench workbench) { this.workbench = workbench; page1 = new ImportWizardPage("1.3.0"); } @Override public void addPages() { super.addPages(); addPage(page1); } @Override public boolean canFinish() { return page1.isPageComplete(); } @Override public boolean performFinish() { try { getContainer().run(false, false, this); } catch (Exception e) { MessageDialog.openError(getShell(), "Error", e.getMessage()); } return true; } @Override public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { List<String> input = null; try { input = readInput(page1.getInputFileName()); } catch (IOException e) { throw new InterruptedException("Error reading the input File"); } List<String> transformedDiagram = null; String version = getVersion(input); if ("1.0".equals(version)) { transformedDiagram = transform1_2_0_To_1_3_0(transform1_0_To_1_2_0(input)); } else if ("1.2.0".equals(version)) { transformedDiagram = transform1_2_0_To_1_3_0(input); } else { throw new InterruptedException("Error importing Diagram : Invalid or missing version"); //missing header } String outputFileName = page1.getOutputFileName(); if (page1.isOverwriteInputFile()) { outputFileName = page1.getInputFileName(); } try { saveOutput(outputFileName, transformedDiagram); } catch (IOException e) { throw new InterruptedException("Error saving the diagram: " + e.getMessage()); } if (workbench != null) openEditor(workbench, outputFileName); } private String getVersion(List<String> input) throws InterruptedException { if (input.size() < 3) throw new InterruptedException("Error importing Diagram : Invalid File"); //invalid file if (!input.get(0).trim().equals("<?xml version=\"1.0\" encoding=\"UTF-8\"?>")) throw new InterruptedException("Error importing Diagram : Missing XML Header"); //missing header if (!input.get(1).trim().contains("http://ststool/")) throw new InterruptedException("Error importing Diagram : Missing STS Header"); //missing header try { String ver = input.get(1); ver = ver.substring(ver.indexOf("http://ststool/") + 15); int ind = ver.indexOf('"'); if (ind > 0) { ver = ver.substring(0, ind); } return ver.trim(); } catch (Exception e) { throw new InterruptedException("Error importing Diagram : can't rertive version"); } } private List<String> transform1_0_To_1_2_0(List<String> input) throws InterruptedException { List<String> result = new ArrayList<String>(input.size()); result.add(input.get(0)); result.add(input.get(1).replace("http://ststool/1.0", "http://ststool/1.2.0")); for (int i = 2; i < input.size(); i++) { String s = input.get(i); s = s.replace("noRepudiation=\"true\"", "repudiationType=\"DUAL_REPUDIATION\""); s = s.replace("redundancy=\"true\"", "redundancyType=\"FALLBACK_MULTI\""); result.add(s); } return result; } private List<String> transform1_2_0_To_1_3_0(List<String> input) throws InterruptedException { List<String> result = new ArrayList<String>(input); String s = result.remove(1); s = s.replace("http://ststool/1.2.0", "http://ststool/1.3.0"); result.add(1, s); return result; } private List<String> readInput(String fileName) throws IOException { List<String> outText = new ArrayList<String>(); BufferedReader br = null; try { br = new BufferedReader(new InputStreamReader(new FileInputStream(new File(fileName)))); String strLine; while ((strLine = br.readLine()) != null) { outText.add(strLine); } } finally { if (br != null) br.close(); } return outText; } private void saveOutput(String filename, List<String> output) throws IOException { BufferedWriter out = new BufferedWriter(new FileWriter(filename, false)); for (String s : output) { out.write(s); out.newLine(); } out.close(); } private static boolean openEditor(IWorkbench workbench, String filename) { IWorkbenchWindow workbenchWindow = workbench.getActiveWorkbenchWindow(); IWorkbenchPage page = workbenchWindow.getActivePage(); URI fileURI = URI.createFileURI(filename); IEditorDescriptor editorDescriptor = workbench.getEditorRegistry().getDefaultEditor(fileURI.toFileString()); if (editorDescriptor == null) { MessageDialog.openError(workbenchWindow.getShell(), Messages.DiagramEditorActionBarAdvisor_DefaultFileEditorTitle, NLS.bind(Messages.DiagramEditorActionBarAdvisor_DefaultFileEditorMessage, fileURI.toFileString())); return false; } else { try { page.openEditor(new URIEditorInput(fileURI), editorDescriptor.getId()); } catch (PartInitException exception) { MessageDialog.openError(workbenchWindow.getShell(), Messages.DiagramEditorActionBarAdvisor_DefaultEditorOpenErrorTitle, exception.getMessage()); return false; } } return true; } }