Java tutorial
/*! ****************************************************************************** * * Pentaho Data Integration * * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com * ******************************************************************************* * * 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 org.pentaho.di.ui.job.entries.talendjobexec; import org.apache.commons.vfs.FileObject; import org.apache.commons.vfs.FileSystemException; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.ShellAdapter; import org.eclipse.swt.events.ShellEvent; import org.eclipse.swt.layout.FormAttachment; import org.eclipse.swt.layout.FormData; import org.eclipse.swt.layout.FormLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.MessageBox; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.pentaho.di.core.Const; import org.pentaho.di.core.vfs.KettleVFS; import org.pentaho.di.i18n.BaseMessages; import org.pentaho.di.job.JobMeta; import org.pentaho.di.job.entries.talendjobexec.JobEntryTalendJobExec; import org.pentaho.di.job.entry.JobEntryDialogInterface; import org.pentaho.di.job.entry.JobEntryInterface; import org.pentaho.di.repository.Repository; import org.pentaho.di.ui.core.gui.WindowProperty; import org.pentaho.di.ui.core.widget.TextVar; import org.pentaho.di.ui.job.dialog.JobDialog; import org.pentaho.di.ui.job.entry.JobEntryDialog; import org.pentaho.di.ui.spoon.Spoon; import org.pentaho.di.ui.trans.step.BaseStepDialog; import org.pentaho.vfs.ui.VfsFileChooserDialog; /** * This dialog allows you to edit the SQL job entry settings. (select the connection and the sql script to be executed) * * @author Matt * @since 19-06-2003 */ public class JobEntryTalendJobExecDialog extends JobEntryDialog implements JobEntryDialogInterface { private static Class<?> PKG = JobEntryTalendJobExec.class; // for i18n purposes, needed by Translator2!! private static final String[] EXTENSIONS = new String[] { "*.ZIP;*.zip", "*" }; private static final String[] FILETYPES = new String[] { BaseMessages.getString(PKG, "JobEntryTalendJobExec.Filetype.ZIP"), BaseMessages.getString(PKG, "JobEntryTalendJobExec.Filetype.All") }; private Label wlName; private Text wName; private FormData fdlName, fdName; private Label wlFilename; private Button wbFilename; private TextVar wFilename; private FormData fdlFilename, fdbFilename, fdFilename; private Button wOK, wCancel; private Listener lsOK, lsCancel; private JobEntryTalendJobExec jobEntry; private Shell shell; private SelectionAdapter lsDef; private boolean changed; private TextVar wClassName; public JobEntryTalendJobExecDialog(Shell parent, JobEntryInterface jobEntryInt, Repository rep, JobMeta jobMeta) { super(parent, jobEntryInt, rep, jobMeta); jobEntry = (JobEntryTalendJobExec) jobEntryInt; if (this.jobEntry.getName() == null) { this.jobEntry.setName(BaseMessages.getString(PKG, "JobEntryTalendJobExec.Name.Default")); } } public JobEntryInterface open() { Shell parent = getParent(); Display display = parent.getDisplay(); shell = new Shell(parent, props.getJobsDialogStyle()); props.setLook(shell); JobDialog.setShellImage(shell, jobEntry); ModifyListener lsMod = new ModifyListener() { public void modifyText(ModifyEvent e) { jobEntry.setChanged(); } }; changed = jobEntry.hasChanged(); FormLayout formLayout = new FormLayout(); formLayout.marginWidth = Const.FORM_MARGIN; formLayout.marginHeight = Const.FORM_MARGIN; shell.setLayout(formLayout); shell.setText(BaseMessages.getString(PKG, "JobEntryTalendJobExec.Title")); int middle = props.getMiddlePct(); int margin = Const.MARGIN; // Filename line wlName = new Label(shell, SWT.RIGHT); wlName.setText(BaseMessages.getString(PKG, "JobEntryTalendJobExec.Name.Label")); props.setLook(wlName); fdlName = new FormData(); fdlName.left = new FormAttachment(0, 0); fdlName.right = new FormAttachment(middle, -margin); fdlName.top = new FormAttachment(0, margin); wlName.setLayoutData(fdlName); wName = new Text(shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER); props.setLook(wName); wName.addModifyListener(lsMod); fdName = new FormData(); fdName.left = new FormAttachment(middle, 0); fdName.top = new FormAttachment(0, margin); fdName.right = new FormAttachment(100, 0); wName.setLayoutData(fdName); Control lastControl = wName; // Filename line wlFilename = new Label(shell, SWT.RIGHT); wlFilename.setText(BaseMessages.getString(PKG, "JobEntryTalendJobExec.Filename.Label")); props.setLook(wlFilename); fdlFilename = new FormData(); fdlFilename.left = new FormAttachment(0, 0); fdlFilename.top = new FormAttachment(lastControl, margin); fdlFilename.right = new FormAttachment(middle, -margin); wlFilename.setLayoutData(fdlFilename); wbFilename = new Button(shell, SWT.PUSH | SWT.CENTER); props.setLook(wbFilename); wbFilename.setText(BaseMessages.getString(PKG, "System.Button.Browse")); fdbFilename = new FormData(); fdbFilename.right = new FormAttachment(100, 0); fdbFilename.top = new FormAttachment(lastControl, 0); // fdbFilename.height = 22; wbFilename.setLayoutData(fdbFilename); wFilename = new TextVar(jobMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER); props.setLook(wFilename); wFilename.addModifyListener(lsMod); fdFilename = new FormData(); fdFilename.left = new FormAttachment(middle, 0); fdFilename.top = new FormAttachment(lastControl, margin); fdFilename.right = new FormAttachment(wbFilename, -margin); wFilename.setLayoutData(fdFilename); // Whenever something changes, set the tooltip to the expanded version: wFilename.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { wFilename.setToolTipText(jobMeta.environmentSubstitute(wFilename.getText())); } }); wbFilename.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { try { FileObject fileName = null; try { String curFile = wFilename.getText(); if (curFile.trim().length() > 0) { fileName = KettleVFS.getInstance().getFileSystemManager() .resolveFile(jobMeta.environmentSubstitute(wFilename.getText())); } else { fileName = KettleVFS.getInstance().getFileSystemManager() .resolveFile(Const.getUserHomeDirectory()); } } catch (FileSystemException ex) { fileName = KettleVFS.getInstance().getFileSystemManager() .resolveFile(Const.getUserHomeDirectory()); } VfsFileChooserDialog vfsFileChooser = Spoon.getInstance() .getVfsFileChooserDialog(fileName.getParent(), fileName); FileObject selected = vfsFileChooser.open(shell, null, EXTENSIONS, FILETYPES, VfsFileChooserDialog.VFS_DIALOG_OPEN_FILE); wFilename.setText(selected != null ? selected.getURL().toString() : Const.EMPTY_STRING); } catch (FileSystemException ex) { ex.printStackTrace(); } } }); lastControl = wFilename; // Filename line Label wlClassName = new Label(shell, SWT.RIGHT); wlClassName.setText(BaseMessages.getString(PKG, "JobEntryTalendJobExec.ClassName.Label")); props.setLook(wlClassName); FormData fdlClassName = new FormData(); fdlClassName.left = new FormAttachment(0, 0); fdlClassName.right = new FormAttachment(middle, -margin); fdlClassName.top = new FormAttachment(lastControl, margin); wlClassName.setLayoutData(fdlClassName); wClassName = new TextVar(jobMeta, shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER); wClassName.setToolTipText(BaseMessages.getString(PKG, "JobEntryTalendJobExec.ClassName.Tooltip")); props.setLook(wClassName); wClassName.addModifyListener(lsMod); FormData fdClassName = new FormData(); fdClassName.left = new FormAttachment(middle, 0); fdClassName.top = new FormAttachment(lastControl, margin); fdClassName.right = new FormAttachment(100, 0); wClassName.setLayoutData(fdClassName); lastControl = wClassName; wOK = new Button(shell, SWT.PUSH); wOK.setText(BaseMessages.getString(PKG, "System.Button.OK")); FormData fd = new FormData(); fd.right = new FormAttachment(50, -10); fd.bottom = new FormAttachment(100, 0); fd.width = 100; wOK.setLayoutData(fd); wCancel = new Button(shell, SWT.PUSH); wCancel.setText(BaseMessages.getString(PKG, "System.Button.Cancel")); fd = new FormData(); fd.left = new FormAttachment(50, 10); fd.bottom = new FormAttachment(100, 0); fd.width = 100; wCancel.setLayoutData(fd); BaseStepDialog.positionBottomButtons(shell, new Button[] { wOK, wCancel }, margin, wClassName); // Add listeners lsCancel = new Listener() { public void handleEvent(Event e) { cancel(); } }; lsOK = new Listener() { public void handleEvent(Event e) { ok(); } }; wCancel.addListener(SWT.Selection, lsCancel); wOK.addListener(SWT.Selection, lsOK); lsDef = new SelectionAdapter() { public void widgetDefaultSelected(SelectionEvent e) { ok(); } }; wName.addSelectionListener(lsDef); wFilename.addSelectionListener(lsDef); // Detect X or ALT-F4 or something that kills this window... shell.addShellListener(new ShellAdapter() { public void shellClosed(ShellEvent e) { cancel(); } }); getData(); BaseStepDialog.setSize(shell); shell.open(); props.setDialogSize(shell, "JobEntryTalendJobExec.DialogSize"); while (!shell.isDisposed()) { if (!display.readAndDispatch()) { display.sleep(); } } return jobEntry; } public void dispose() { WindowProperty winprop = new WindowProperty(shell); props.setScreen(winprop); shell.dispose(); } /** * Copy information from the meta-data input to the dialog fields. */ public void getData() { wFilename.setText(Const.NVL(jobEntry.getFilename(), "")); wClassName.setText(Const.NVL(jobEntry.getClassName(), "")); wName.setText(Const.NVL(jobEntry.getName(), "")); wName.selectAll(); wName.setFocus(); } private void cancel() { jobEntry.setChanged(changed); jobEntry = null; dispose(); } private void ok() { if (Const.isEmpty(wName.getText())) { MessageBox mb = new MessageBox(shell, SWT.OK | SWT.ICON_ERROR); mb.setText(BaseMessages.getString(PKG, "System.StepJobEntryNameMissing.Title")); mb.setMessage(BaseMessages.getString(PKG, "System.JobEntryNameMissing.Msg")); mb.open(); return; } jobEntry.setName(wName.getText()); jobEntry.setFilename(wFilename.getText()); jobEntry.setClassName(wClassName.getText()); dispose(); } public boolean evaluates() { return true; } public boolean isUnconditional() { return false; } }