Java tutorial
/******************************************************************************* * Copyright (c) 2003, 2010 IBM Corporation and others. * 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: * IBM Corporation - Initial API and implementation * Angelo Zerr <angelo.zerr@gmail.com> - Jetty packages *******************************************************************************/ package org.eclipse.jst.server.jetty.ui.internal; import java.util.ArrayList; import java.util.List; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.IJobChangeEvent; import org.eclipse.core.runtime.jobs.IJobChangeListener; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.core.runtime.jobs.JobChangeAdapter; import org.eclipse.jdt.launching.IVMInstall; import org.eclipse.jdt.launching.IVMInstallType; import org.eclipse.jdt.launching.JavaRuntime; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.preference.IPreferenceNode; import org.eclipse.jface.preference.PreferenceDialog; import org.eclipse.jface.preference.PreferenceManager; import org.eclipse.jface.window.Window; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.jst.server.jetty.core.IJettyRuntimeWorkingCopy; 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.SelectionListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.DirectoryDialog; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.PlatformUI; import org.eclipse.wst.server.core.IRuntimeWorkingCopy; import org.eclipse.wst.server.core.TaskModel; import org.eclipse.wst.server.core.internal.IInstallableRuntime; import org.eclipse.wst.server.core.internal.ServerPlugin; import org.eclipse.wst.server.ui.internal.wizard.TaskWizard; import org.eclipse.wst.server.ui.internal.wizard.fragment.LicenseWizardFragment; import org.eclipse.wst.server.ui.wizard.IWizardHandle; import org.eclipse.wst.server.ui.wizard.WizardFragment; /** * Wizard page to set the server install directory. */ public class JettyRuntimeComposite extends Composite { protected IRuntimeWorkingCopy runtimeWC; protected IJettyRuntimeWorkingCopy runtime; protected IWizardHandle wizard; protected Text installDir; protected Text name; protected Combo combo; protected List installedJREs; protected String[] jreNames; protected IInstallableRuntime ir; protected Job installRuntimeJob; protected IJobChangeListener jobListener; protected Label installLabel; protected Button install; /** * JettyRuntimeWizardPage constructor comment. * * @param parent * the parent composite * @param wizard * the wizard handle */ protected JettyRuntimeComposite(Composite parent, IWizardHandle wizard) { super(parent, SWT.NONE); this.wizard = wizard; wizard.setTitle(Messages.wizardTitle); wizard.setDescription(Messages.wizardDescription); wizard.setImageDescriptor(JettyUIPlugin.getImageDescriptor(JettyUIPlugin.IMG_WIZ_JETTY)); createControl(); } protected void setRuntime(IRuntimeWorkingCopy newRuntime) { if (newRuntime == null) { runtimeWC = null; runtime = null; } else { runtimeWC = newRuntime; runtime = (IJettyRuntimeWorkingCopy) newRuntime.loadAdapter(IJettyRuntimeWorkingCopy.class, null); } if (runtimeWC == null) { ir = null; install.setEnabled(false); installLabel.setText(""); } else { ir = ServerPlugin.findInstallableRuntime(runtimeWC.getRuntimeType().getId()); if (ir != null) { install.setEnabled(true); installLabel.setText(ir.getName()); } } init(); validate(); } public void dispose() { super.dispose(); if (installRuntimeJob != null) { installRuntimeJob.removeJobChangeListener(jobListener); } } /** * Provide a wizard page to change the Jetty installation directory. */ protected void createControl() { GridLayout layout = new GridLayout(); layout.numColumns = 2; setLayout(layout); setLayoutData(new GridData(GridData.FILL_BOTH)); PlatformUI.getWorkbench().getHelpSystem().setHelp(this, ContextIds.RUNTIME_COMPOSITE); Label label = new Label(this, SWT.NONE); label.setText(Messages.runtimeName); GridData data = new GridData(); data.horizontalSpan = 2; label.setLayoutData(data); name = new Text(this, SWT.BORDER); data = new GridData(GridData.FILL_HORIZONTAL); name.setLayoutData(data); name.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { runtimeWC.setName(name.getText()); validate(); } }); label = new Label(this, SWT.NONE); label.setText(Messages.installDir); data = new GridData(); data.horizontalSpan = 2; label.setLayoutData(data); installDir = new Text(this, SWT.BORDER); data = new GridData(GridData.FILL_HORIZONTAL); installDir.setLayoutData(data); installDir.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { runtimeWC.setLocation(new Path(installDir.getText())); validate(); } }); Button browse = SWTUtil.createButton(this, Messages.browse); browse.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent se) { DirectoryDialog dialog = new DirectoryDialog(JettyRuntimeComposite.this.getShell()); dialog.setMessage(Messages.selectInstallDir); dialog.setFilterPath(installDir.getText()); String selectedDirectory = dialog.open(); if (selectedDirectory != null) installDir.setText(selectedDirectory); } }); installLabel = new Label(this, SWT.RIGHT); data = new GridData(GridData.FILL_HORIZONTAL); data.horizontalIndent = 10; installLabel.setLayoutData(data); install = SWTUtil.createButton(this, Messages.install); install.setEnabled(false); install.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent se) { String license = null; try { license = ir.getLicense(new NullProgressMonitor()); } catch (CoreException e) { Trace.trace(Trace.SEVERE, "Error getting license", e); } TaskModel taskModel = new TaskModel(); taskModel.putObject(LicenseWizardFragment.LICENSE, license); TaskWizard wizard2 = new TaskWizard(Messages.installDialogTitle, new WizardFragment() { protected void createChildFragments(List list) { list.add(new LicenseWizardFragment()); } }, taskModel); WizardDialog dialog2 = new WizardDialog(getShell(), wizard2); if (dialog2.open() == Window.CANCEL) return; DirectoryDialog dialog = new DirectoryDialog(JettyRuntimeComposite.this.getShell()); dialog.setMessage(Messages.selectInstallDir); dialog.setFilterPath(installDir.getText()); String selectedDirectory = dialog.open(); if (selectedDirectory != null) { // ir.install(new Path(selectedDirectory)); final IPath installPath = new Path(selectedDirectory); installRuntimeJob = new Job("Installing server runtime environment") { public boolean belongsTo(Object family) { return ServerPlugin.PLUGIN_ID.equals(family); } protected IStatus run(IProgressMonitor monitor) { try { ir.install(installPath, monitor); } catch (CoreException ce) { return ce.getStatus(); } return Status.OK_STATUS; } }; installDir.setText(selectedDirectory); jobListener = new JobChangeAdapter() { public void done(IJobChangeEvent event) { installRuntimeJob.removeJobChangeListener(this); installRuntimeJob = null; Display.getDefault().asyncExec(new Runnable() { public void run() { if (!isDisposed()) { validate(); } } }); } }; installRuntimeJob.addJobChangeListener(jobListener); installRuntimeJob.schedule(); } } }); updateJREs(); // JDK location label = new Label(this, SWT.NONE); label.setText(Messages.installedJRE); data = new GridData(); data.horizontalSpan = 2; label.setLayoutData(data); combo = new Combo(this, SWT.DROP_DOWN | SWT.READ_ONLY); combo.setItems(jreNames); data = new GridData(GridData.HORIZONTAL_ALIGN_FILL); combo.setLayoutData(data); combo.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { int sel = combo.getSelectionIndex(); IVMInstall vmInstall = null; if (sel > 0) vmInstall = (IVMInstall) installedJREs.get(sel - 1); runtime.setVMInstall(vmInstall); validate(); } public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } }); Button button = SWTUtil.createButton(this, Messages.installedJREs); button.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { String currentVM = combo.getText(); if (showPreferencePage()) { updateJREs(); combo.setItems(jreNames); combo.setText(currentVM); if (combo.getSelectionIndex() == -1) combo.select(0); validate(); } } }); init(); validate(); Dialog.applyDialogFont(this); name.forceFocus(); } protected void updateJREs() { // get all installed JVMs installedJREs = new ArrayList(); IVMInstallType[] vmInstallTypes = JavaRuntime.getVMInstallTypes(); int size = vmInstallTypes.length; for (int i = 0; i < size; i++) { IVMInstall[] vmInstalls = vmInstallTypes[i].getVMInstalls(); int size2 = vmInstalls.length; for (int j = 0; j < size2; j++) { installedJREs.add(vmInstalls[j]); } } // get names size = installedJREs.size(); jreNames = new String[size + 1]; jreNames[0] = Messages.runtimeDefaultJRE; for (int i = 0; i < size; i++) { IVMInstall vmInstall = (IVMInstall) installedJREs.get(i); jreNames[i + 1] = vmInstall.getName(); } } protected boolean showPreferencePage() { String id = "org.eclipse.jdt.debug.ui.preferences.VMPreferencePage"; // should be using the following API, but it only allows a single // preference page instance. // see bug 168211 for details // PreferenceDialog dialog = // PreferencesUtil.createPreferenceDialogOn(getShell(), id, new String[] // { id }, null); // return (dialog.open() == Window.OK); PreferenceManager manager = PlatformUI.getWorkbench().getPreferenceManager(); IPreferenceNode node = manager.find("org.eclipse.jdt.ui.preferences.JavaBasePreferencePage") .findSubNode(id); PreferenceManager manager2 = new PreferenceManager(); manager2.addToRoot(node); PreferenceDialog dialog = new PreferenceDialog(getShell(), manager2); dialog.create(); return (dialog.open() == Window.OK); } protected void init() { if (name == null || runtime == null) return; if (runtimeWC.getName() != null) name.setText(runtimeWC.getName()); else name.setText(""); if (runtimeWC.getLocation() != null) installDir.setText(runtimeWC.getLocation().toOSString()); else installDir.setText(""); // set selection if (runtime.isUsingDefaultJRE()) combo.select(0); else { boolean found = false; int size = installedJREs.size(); for (int i = 0; i < size; i++) { IVMInstall vmInstall = (IVMInstall) installedJREs.get(i); if (vmInstall.equals(runtime.getVMInstall())) { combo.select(i + 1); found = true; } } if (!found) combo.select(0); } } protected void validate() { if (runtime == null) { wizard.setMessage("", IMessageProvider.ERROR); return; } IStatus status = runtimeWC.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(); } }