Java tutorial
/******************************************************************************* * Copyright (c) 2009, 2010 SAP AG. * 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: * Kaloyan Raev (SAP AG) - initial API and implementation *******************************************************************************/ package com.sap.netweaver.porta.ide.eclipse.server.ui.wizard; import java.net.MalformedURLException; import java.net.URL; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Path; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.resource.ImageDescriptor; 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.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.DirectoryDialog; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.wst.server.core.IRuntimeWorkingCopy; import org.eclipse.wst.server.ui.wizard.IWizardHandle; import com.sap.netweaver.porta.ide.eclipse.SapNWPlugin; import com.sap.netweaver.porta.ide.eclipse.server.runtime.SapNWRuntime; public class SapNWRuntimeComposite extends Composite { protected IRuntimeWorkingCopy runtime; protected SapNWRuntime sapRuntime; private IWizardHandle wizard; private Text installDir; private Text name; private Button cacheJars; protected SapNWRuntimeComposite(Composite parent, IWizardHandle wizard) { super(parent, SWT.NONE); this.wizard = wizard; wizard.setTitle("New Runtime for SAP NetWeaver"); wizard.setDescription("Specify the location of a Java instance. Use the Browse... button. "); // TODO wizard icon try { wizard.setImageDescriptor(ImageDescriptor.createFromURL( new URL(SapNWPlugin.getDefault().getBundle().getEntry("icons/"), "wizban/sap_wiz.png"))); } catch (MalformedURLException e) { SapNWPlugin.logError("Cannot load wizard icon for the SAP NetWeaver runtime", e); } createControl(); } protected void setRuntime(IRuntimeWorkingCopy newRuntime) { if (newRuntime == null) { runtime = null; sapRuntime = null; } else { runtime = newRuntime; sapRuntime = (SapNWRuntime) runtime.loadAdapter(SapNWRuntime.class, null); // update the page title with the correct runtime version wizard.setTitle(String.format("New Runtime for %s", runtime.getRuntimeType().getName())); } init(); validate(); } private void createControl() { setLayout(new GridLayout(2, false)); setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false)); // TODO // PlatformUI.getWorkbench().getHelpSystem().setHelp(this, ContextIds.RUNTIME_COMPOSITE); Label label = new Label(this, SWT.NONE); label.setText("Na&me:"); label.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false)); name = new Text(this, SWT.BORDER); name.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); name.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { runtime.setName(name.getText()); validate(); } }); // spacer new Label(this, SWT.NONE); Group jarsGroup = new Group(this, SWT.NONE); jarsGroup.setLayout(new GridLayout(3, false)); jarsGroup.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 0)); jarsGroup.setText("Java EE classpath JARs"); label = new Label(jarsGroup, SWT.NONE); label.setText("Java instance &home:"); label.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false)); installDir = new Text(jarsGroup, SWT.BORDER); installDir.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); installDir.setEditable(false); installDir.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { runtime.setLocation(new Path(installDir.getText())); validate(); } }); Button browse = new Button(jarsGroup, SWT.PUSH); browse.setText("B&rowse..."); browse.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false)); browse.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { DirectoryDialog dialog = new DirectoryDialog(getShell()); dialog.setMessage("Select the root directory of a Java instance: "); dialog.setFilterPath(installDir.getText()); String selectedDirectory = dialog.open(); if (selectedDirectory != null) installDir.setText(selectedDirectory); } }); Label installDirDesc = new Label(jarsGroup, SWT.WRAP); installDirDesc.setText( "This is the root location of the Java instance on the filesystem, e.g. /usr/sap/C01/J00. It could be a directory on the local filesystem or on a remote share. The runtime looks up the given location for the Java EE JARs to include in the classpath. "); GridData gd = new GridData(SWT.FILL, SWT.BEGINNING, false, false, 3, 0); gd.widthHint = 400; installDirDesc.setLayoutData(gd); // spacer new Label(jarsGroup, SWT.NONE); cacheJars = new Button(jarsGroup, SWT.CHECK); cacheJars.setText("&Copy classpath JARs into workspace"); cacheJars.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 3, 0)); cacheJars.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { sapRuntime.setCacheJars(cacheJars.getSelection()); } }); Label cacheJarsDesc = new Label(jarsGroup, SWT.WRAP); cacheJarsDesc.setText( "Enabling this option optimizes the classpath computing when the Java instance is on a remote system in slow network environment. "); gd = new GridData(SWT.FILL, SWT.BEGINNING, false, false, 3, 0); gd.widthHint = 400; cacheJarsDesc.setLayoutData(gd); init(); validate(); Dialog.applyDialogFont(this); name.forceFocus(); } protected void init() { if (name == null || runtime == null) return; if (runtime.getName() != null) name.setText(runtime.getName()); else name.setText(""); if (runtime.getLocation() != null) installDir.setText(runtime.getLocation().toOSString()); else installDir.setText(""); cacheJars.setSelection(sapRuntime.doesCacheJars()); } protected void validate() { if (runtime == null) { wizard.setMessage("Internal error: runtime is null", IMessageProvider.ERROR); return; } IStatus status = runtime.validate(null); if (status == null || status.isOK()) wizard.setMessage(null, IMessageProvider.NONE); else if (status.getSeverity() == IStatus.WARNING) wizard.setMessage(status.getMessage(), IMessageProvider.WARNING); else wizard.setMessage(status.getMessage(), IMessageProvider.ERROR); wizard.update(); } }