| /******************************************************************************* |
| * Copyright (C) 2007 The University of Manchester |
| * |
| * Modifications to the initial code base are copyright of their |
| * respective authors, or their employers as appropriate. |
| * |
| * This program 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 program 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. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| ******************************************************************************/ |
| package net.sf.taverna.t2.workbench.file.impl.actions; |
| |
| import static java.awt.Toolkit.getDefaultToolkit; |
| import static java.awt.event.KeyEvent.VK_S; |
| import static javax.swing.JOptionPane.NO_OPTION; |
| import static javax.swing.JOptionPane.WARNING_MESSAGE; |
| import static javax.swing.JOptionPane.YES_NO_CANCEL_OPTION; |
| import static javax.swing.JOptionPane.YES_OPTION; |
| import static javax.swing.JOptionPane.showConfirmDialog; |
| import static javax.swing.JOptionPane.showMessageDialog; |
| import static javax.swing.KeyStroke.getKeyStroke; |
| import static net.sf.taverna.t2.workbench.icons.WorkbenchIcons.saveIcon; |
| |
| import java.awt.Component; |
| import java.awt.event.ActionEvent; |
| |
| import javax.swing.AbstractAction; |
| |
| import net.sf.taverna.t2.lang.observer.Observable; |
| import net.sf.taverna.t2.lang.observer.Observer; |
| import net.sf.taverna.t2.workbench.edits.EditManager; |
| import net.sf.taverna.t2.workbench.edits.EditManager.AbstractDataflowEditEvent; |
| import net.sf.taverna.t2.workbench.edits.EditManager.EditManagerEvent; |
| import net.sf.taverna.t2.workbench.file.FileManager; |
| import net.sf.taverna.t2.workbench.file.events.FileManagerEvent; |
| import net.sf.taverna.t2.workbench.file.events.SavedDataflowEvent; |
| import net.sf.taverna.t2.workbench.file.events.SetCurrentDataflowEvent; |
| import net.sf.taverna.t2.workbench.file.exceptions.OverwriteException; |
| import net.sf.taverna.t2.workbench.file.exceptions.SaveException; |
| |
| import org.apache.log4j.Logger; |
| |
| import uk.org.taverna.scufl2.api.container.WorkflowBundle; |
| |
| @SuppressWarnings("serial") |
| public class SaveWorkflowAction extends AbstractAction { |
| private static Logger logger = Logger.getLogger(SaveWorkflowAction.class); |
| private static final String SAVE_WORKFLOW = "Save workflow"; |
| |
| private final SaveWorkflowAsAction saveWorkflowAsAction; |
| private EditManagerObserver editManagerObserver = new EditManagerObserver(); |
| private FileManager fileManager; |
| private FileManagerObserver fileManagerObserver = new FileManagerObserver(); |
| |
| public SaveWorkflowAction(EditManager editManager, FileManager fileManager) { |
| super(SAVE_WORKFLOW, saveIcon); |
| this.fileManager = fileManager; |
| saveWorkflowAsAction = new SaveWorkflowAsAction(fileManager); |
| putValue( |
| ACCELERATOR_KEY, |
| getKeyStroke(VK_S, getDefaultToolkit().getMenuShortcutKeyMask())); |
| putValue(MNEMONIC_KEY, VK_S); |
| editManager.addObserver(editManagerObserver); |
| fileManager.addObserver(fileManagerObserver); |
| updateEnabledStatus(fileManager.getCurrentDataflow()); |
| } |
| |
| @Override |
| public void actionPerformed(ActionEvent ev) { |
| Component parentComponent = null; |
| if (ev.getSource() instanceof Component) |
| parentComponent = (Component) ev.getSource(); |
| saveCurrentDataflow(parentComponent); |
| } |
| |
| public boolean saveCurrentDataflow(Component parentComponent) { |
| WorkflowBundle workflowBundle = fileManager.getCurrentDataflow(); |
| return saveDataflow(parentComponent, workflowBundle); |
| } |
| |
| public boolean saveDataflow(Component parentComponent, |
| WorkflowBundle workflowBundle) { |
| if (!fileManager.canSaveWithoutDestination(workflowBundle)) |
| return saveWorkflowAsAction.saveDataflow(parentComponent, |
| workflowBundle); |
| |
| try { |
| try { |
| fileManager.saveDataflow(workflowBundle, true); |
| Object workflowBundleSource = fileManager |
| .getDataflowSource(workflowBundle); |
| logger.info("Saved workflow " + workflowBundle + " to " |
| + workflowBundleSource); |
| return true; |
| } catch (OverwriteException ex) { |
| Object workflowBundleSource = fileManager |
| .getDataflowSource(workflowBundle); |
| logger.info("Workflow was changed on source: " |
| + workflowBundleSource); |
| fileManager.setCurrentDataflow(workflowBundle); |
| String msg = "Workflow destination " + workflowBundleSource |
| + " has been changed from elsewhere, " |
| + "are you sure you want to overwrite?"; |
| int ret = showConfirmDialog(parentComponent, msg, |
| "Workflow changed", YES_NO_CANCEL_OPTION); |
| if (ret == YES_OPTION) { |
| fileManager.saveDataflow(workflowBundle, false); |
| logger.info("Saved workflow " + workflowBundle |
| + " by overwriting " + workflowBundleSource); |
| return true; |
| } else if (ret == NO_OPTION) { |
| // Pop up Save As instead to choose another name |
| return saveWorkflowAsAction.saveDataflow(parentComponent, |
| workflowBundle); |
| } else { |
| logger.info("Aborted overwrite of " + workflowBundleSource); |
| return false; |
| } |
| } |
| } catch (SaveException ex) { |
| logger.warn("Could not save workflow " + workflowBundle, ex); |
| showMessageDialog(parentComponent, "Could not save workflow: \n\n" |
| + ex.getMessage(), "Warning", WARNING_MESSAGE); |
| return false; |
| } catch (RuntimeException ex) { |
| logger.warn("Could not save workflow " + workflowBundle, ex); |
| showMessageDialog(parentComponent, "Could not save workflow: \n\n" |
| + ex.getMessage(), "Warning", WARNING_MESSAGE); |
| return false; |
| } |
| } |
| |
| protected void updateEnabledStatus(WorkflowBundle workflowBundle) { |
| setEnabled(workflowBundle != null |
| && fileManager.isDataflowChanged(workflowBundle)); |
| } |
| |
| private final class EditManagerObserver implements |
| Observer<EditManagerEvent> { |
| @Override |
| public void notify(Observable<EditManagerEvent> sender, |
| EditManagerEvent message) throws Exception { |
| if (message instanceof AbstractDataflowEditEvent) { |
| WorkflowBundle workflowBundle = ((AbstractDataflowEditEvent) message) |
| .getDataFlow(); |
| if (workflowBundle == fileManager.getCurrentDataflow()) |
| updateEnabledStatus(workflowBundle); |
| } |
| } |
| } |
| |
| private final class FileManagerObserver implements |
| Observer<FileManagerEvent> { |
| @Override |
| public void notify(Observable<FileManagerEvent> sender, |
| FileManagerEvent message) throws Exception { |
| if (message instanceof SavedDataflowEvent) |
| updateEnabledStatus(((SavedDataflowEvent) message) |
| .getDataflow()); |
| else if (message instanceof SetCurrentDataflowEvent) |
| updateEnabledStatus(((SetCurrentDataflowEvent) message) |
| .getDataflow()); |
| } |
| } |
| } |