Java tutorial
/******************************************************************************* * Copyright (c) 2008-2010, G. Weirich and Elexis * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * G. Weirich - initial implementation * *******************************************************************************/ package ch.elexis.views; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.util.ArrayList; import java.util.Comparator; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IAction; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.InputDialog; import org.eclipse.jface.dialogs.TitleAreaDialog; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.FileDialog; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.forms.widgets.ScrolledForm; import org.eclipse.ui.part.ViewPart; import ch.elexis.Desk; import ch.elexis.ElexisException; import ch.elexis.actions.RestrictedAction; import ch.elexis.admin.AccessControlDefaults; import ch.elexis.core.icons.Images; import ch.elexis.data.Script; import ch.elexis.scripting.ScriptEditor; import ch.elexis.util.PersistentObjectDragSource; import ch.elexis.util.SWTHelper; import ch.elexis.util.SortedList; import ch.elexis.util.ViewMenus; import ch.rgw.tools.ExHandler; /** * Display and edit Beanshell-Scripts * * @author gerry * */ public class ScriptView extends ViewPart { public static final String ID = "ch.elexis.scriptsView"; //$NON-NLS-1$ private IAction newScriptAction, editScriptAction, removeScriptAction, execScriptAction, exportScriptAction, importScriptAction; TableViewer tv; ScrolledForm form; public ScriptView() { } @Override public void createPartControl(Composite parent) { form = Desk.getToolkit().createScrolledForm(parent); form.setLayoutData(SWTHelper.getFillGridData(1, true, 1, true)); form.getBody().setLayout(new FillLayout()); tv = new TableViewer(form.getBody(), SWT.SINGLE | SWT.FULL_SELECTION); tv.setContentProvider(new IStructuredContentProvider() { public Object[] getElements(Object inputElement) { SortedList<Script> sortedScripts = new SortedList<Script>(new ScriptComparator()); List<Script> scripts = Script.getScripts(); for (int i = 0; i < scripts.size(); i++) { Script script = scripts.get(i); sortedScripts.add(script); } return sortedScripts.toArray(); } public void dispose() { } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } }); tv.setLabelProvider(new LabelProvider() { @Override public String getText(Object element) { if (element instanceof Script) { return ((Script) element).getLabel(); } else { return element.toString(); } } }); new PersistentObjectDragSource(tv); makeActions(); ViewMenus menu = new ViewMenus(getViewSite()); menu.createToolbar(newScriptAction); menu.createViewerContextMenu(tv, editScriptAction, execScriptAction, null, exportScriptAction, removeScriptAction); menu.createMenu(importScriptAction, newScriptAction); tv.setInput(this); } class ScriptComparator implements Comparator<Script> { @Override public int compare(Script script0, Script script1) { String script0_ID = ((ch.elexis.data.Script) script0).getId().toUpperCase(); String script1_ID = ((ch.elexis.data.Script) script1).getId().toUpperCase(); return script0_ID.compareTo(script1_ID); } } @Override public void setFocus() { // TODO Auto-generated method stub } private void makeActions() { exportScriptAction = new Action("export script") { { setImageDescriptor(Images.IMG_EXPORT.getImageDescriptor()); setToolTipText("export script into a text file"); } @Override public void run() { IStructuredSelection sel = (IStructuredSelection) tv.getSelection(); if (sel != null && sel.size() != 0) { FileDialog fd = new FileDialog(getViewSite().getShell(), SWT.SAVE); Script script = (Script) sel.getFirstElement(); fd.setFileName(script.getLabel()); String filename = fd.open(); if (filename != null) { try { File file = new File(filename); FileWriter fw = new FileWriter(file); fw.write(script.getString()); fw.close(); } catch (IOException ex) { SWTHelper.showError("IO Error", "Could not write file " + filename + " : " + ex.getMessage()); } } } } }; importScriptAction = new RestrictedAction(AccessControlDefaults.SCRIPT_EDIT, "Import Script") { { setImageDescriptor(Images.IMG_IMPORT.getImageDescriptor()); setToolTipText("Import script from a text file"); } @Override public void doRun() { FileDialog fd = new FileDialog(getViewSite().getShell(), SWT.OPEN); String filename = fd.open(); if (fd != null) { try { /* Script script= */Script.importFromFile(filename); tv.refresh(); } catch (ElexisException e) { SWTHelper.showError("IO Error", e.getMessage()); } } } }; newScriptAction = new RestrictedAction(AccessControlDefaults.SCRIPT_EDIT, Messages.getString("ScriptView.newScriptAction")) { //$NON-NLS-1$ { setImageDescriptor(Images.IMG_NEW.getImageDescriptor()); setToolTipText(Messages.getString("ScriptView.newScriptTooltip")); //$NON-NLS-1$ } @Override public void doRun() { InputDialog inp = new InputDialog(getSite().getShell(), Messages.getString("ScriptView.enterNameCaption"), //$NON-NLS-1$ Messages.getString("ScriptView.enterNameBody"), null, //$NON-NLS-1$ null); if (inp.open() == Dialog.OK) { try { Script.create(inp.getValue(), ""); } catch (ElexisException e) { ExHandler.handle(e); SWTHelper.showError("Fehler bei Scripterstellung", e.getMessage()); } tv.refresh(); } } }; editScriptAction = new RestrictedAction(AccessControlDefaults.SCRIPT_EDIT, Messages.getString("ScriptView.editScriptAction")) { //$NON-NLS-1$ { setImageDescriptor(Images.IMG_EDIT.getImageDescriptor()); setToolTipText(Messages.getString("ScriptView.editScriptTooltip")); //$NON-NLS-1$ } @Override public void doRun() { IStructuredSelection sel = (IStructuredSelection) tv.getSelection(); if (sel != null && sel.size() != 0) { Script script = (Script) sel.getFirstElement(); ScriptEditor sce = new ScriptEditor(getSite().getShell(), script.getString(), script.getLabel()); if (sce.open() == Dialog.OK) { script.putString(sce.getScript()); } } } }; removeScriptAction = new RestrictedAction(AccessControlDefaults.SCRIPT_EDIT, Messages.getString("ScriptView.deleteScriptAction")) { //$NON-NLS-1$ { setImageDescriptor(Images.IMG_DELETE.getImageDescriptor()); setToolTipText(Messages.getString("ScriptView.deleteScriptTooltip")); //$NON-NLS-1$ } @Override public void doRun() { IStructuredSelection sel = (IStructuredSelection) tv.getSelection(); if (sel != null && sel.size() != 0) { Script script = (Script) sel.getFirstElement(); script.delete(); tv.refresh(); } } }; execScriptAction = new RestrictedAction(AccessControlDefaults.SCRIPT_EXECUTE, Messages.getString("ScriptView.executeScriptAction")) { //$NON-NLS-1$ { setImageDescriptor(Images.IMG_GOFURTHER.getImageDescriptor()); setToolTipText(Messages.getString("ScriptView.executeScriptTooltip")); //$NON-NLS-1$ } @Override public void doRun() { IStructuredSelection sel = (IStructuredSelection) tv.getSelection(); if (sel != null && sel.size() != 0) { Script script = (Script) sel.getFirstElement(); try { String contents = script.getString(); ArrayList<String> vars = new ArrayList<String>(); Pattern var = Pattern.compile("\\$[0-9a-z]+", Pattern.CASE_INSENSITIVE); Matcher m = var.matcher(contents); while (m.find()) { String varname = m.group(); if (!vars.contains(varname)) { vars.add(varname); } } String varString = null; if (vars.size() > 0) { SetVarsDlg dlg = new SetVarsDlg(getViewSite().getShell(), vars); if (dlg.open() == Dialog.OK) { varString = dlg.getResult(); } } Object ret = script.execute(varString); SWTHelper.showInfo(Messages.getString("ScriptView.ScriptOutput"), ret.toString()); //$NON-NLS-1$ } catch (Exception ex) { ExHandler.handle(ex); SWTHelper.showError("Fehler beim Ausfhren des Scripts", ex.getMessage()); } } } }; } class SetVarsDlg extends TitleAreaDialog { List<String> myVars; List<Text> inputs; String result; SetVarsDlg(Shell shell, List<String> vars) { super(shell); myVars = vars; inputs = new ArrayList<Text>(vars.size()); } @Override protected Control createDialogArea(Composite parent) { Composite ret = (Composite) super.createDialogArea(parent); Composite cVars = new Composite(ret, SWT.NONE); cVars.setLayoutData(SWTHelper.getFillGridData(1, true, 1, true)); cVars.setLayout(new GridLayout(2, false)); for (String v : myVars) { new Label(cVars, SWT.NONE).setText(v); Text text = new Text(cVars, SWT.BORDER); text.setLayoutData(SWTHelper.getFillGridData(1, true, 1, false)); text.setData("varname", v); inputs.add(text); } return ret; } @Override public void create() { super.create(); setMessage("Folgende Variablen sollten gesetzt werden:"); setTitle("Bitte vervollstndigen"); getShell().setText("Script Ausfhrung"); } @Override protected void okPressed() { StringBuilder sb = new StringBuilder(); for (Text text : inputs) { String varname = (String) text.getData("varname"); String varcontents = text.getText(); sb.append(varname).append("=").append(varcontents).append(","); } sb.deleteCharAt(sb.length() - 1); result = sb.toString(); super.okPressed(); } String getResult() { return result; } } }