Java tutorial
/******************************************************************************* * Copyright (c) 2012 Pivotal Software, Inc. * 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 * https://www.eclipse.org/legal/epl-v10.html * * Contributors: * Pivotal Software, Inc. - initial API and implementation *******************************************************************************/ package com.vmware.vfabric.ide.eclipse.tcserver.internal.ui; import java.io.File; 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.Status; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.layout.GridDataFactory; 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.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Label; import org.eclipse.wst.server.core.IServerWorkingCopy; import org.eclipse.wst.server.core.TaskModel; import org.eclipse.wst.server.core.internal.ServerWorkingCopy; import org.eclipse.wst.server.ui.wizard.IWizardHandle; import org.eclipse.wst.server.ui.wizard.WizardFragment; import org.springsource.ide.eclipse.commons.core.StatusHandler; import com.vmware.vfabric.ide.eclipse.tcserver.internal.core.ITcServerConstants; import com.vmware.vfabric.ide.eclipse.tcserver.internal.core.TcServer; import com.vmware.vfabric.ide.eclipse.tcserver.internal.core.TcServerUtil; /** * @author Steffen Pingel * @author Christian Dupuis */ public class TcServer20WizardFragment extends WizardFragment { public static final String SERVER_DOES_NOT_EXIST_MESSAGE = "The specified server does not exist."; private static final String SERVER_PATH = "."; private IServerWorkingCopy wc; private IWizardHandle wizard; private Combo serverNameCombo; private Button asfLayoutButton; private Button s2LayoutButton; private Label serverNameLabel; public TcServer20WizardFragment() { } @Override public Composite createComposite(Composite parent, IWizardHandle wizard) { this.wizard = wizard; wizard.setTitle("tc Server Configuration"); wizard.setDescription("Specify the server instance."); wizard.setImageDescriptor(TcServerImages.WIZB_SERVER); Composite composite = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.numColumns = 2; composite.setLayout(layout); composite.setLayoutData(new GridData(GridData.FILL_BOTH)); asfLayoutButton = new Button(composite, SWT.RADIO); asfLayoutButton.setText("ASF Layout"); asfLayoutButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (asfLayoutButton.getSelection()) { ((ServerWorkingCopy) wc).setAttribute(TcServer.KEY_ASF_LAYOUT, true); s2LayoutButton.setSelection(false); updateButtons(); validate(); } } }); GridDataFactory.fillDefaults().span(2, 1).applyTo(asfLayoutButton); s2LayoutButton = new Button(composite, SWT.RADIO); s2LayoutButton.setText("SpringSource Layout"); s2LayoutButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (s2LayoutButton.getSelection()) { ((ServerWorkingCopy) wc).setAttribute(TcServer.KEY_ASF_LAYOUT, false); asfLayoutButton.setSelection(false); updateButtons(); validate(); } } }); GridDataFactory.fillDefaults().span(2, 1).applyTo(s2LayoutButton); serverNameLabel = new Label(composite, SWT.NONE); serverNameLabel.setText("Server Name:"); GridData data = new GridData(); serverNameLabel.setLayoutData(data); serverNameCombo = new Combo(composite, SWT.BORDER); data = new GridData(GridData.FILL_HORIZONTAL); serverNameCombo.setLayoutData(data); serverNameCombo.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { ((ServerWorkingCopy) wc).setAttribute(TcServer.KEY_SERVER_NAME, serverNameCombo.getText()); validate(); } }); initialize(); return composite; } private IStatus doValidate() { if (wc != null) { boolean asfLayout = ((ServerWorkingCopy) wc).getAttribute(TcServer.KEY_ASF_LAYOUT, true); if (asfLayout) { return Status.OK_STATUS; } else { String serverName = ((ServerWorkingCopy) wc).getAttribute(TcServer.KEY_SERVER_NAME, (String) null); if (serverName != null) { IPath path = wc.getRuntime().getLocation(); File directory = new File(path.toFile(), SERVER_PATH); if (directory.exists()) { File file = new File(directory, serverName); if (file.exists()) { return TcServerUtil.validateInstance(file, false); } } } } } return new Status(IStatus.ERROR, ITcServerConstants.PLUGIN_ID, SERVER_DOES_NOT_EXIST_MESSAGE); } @Override public void enter() { this.wc = (IServerWorkingCopy) getTaskModel().getObject(TaskModel.TASK_SERVER); initialize(); } @Override public void exit() { try { // load the configuration from the directory based on the selections // made on the wizard page ((ServerWorkingCopy) wc).importRuntimeConfiguration(wc.getRuntime(), null); } catch (CoreException e) { StatusHandler.log(new Status(IStatus.ERROR, TcServerUiPlugin.PLUGIN_ID, "Failed to load runtime configuration", e)); // Trace.trace(Trace.SEVERE, "Failed to load runtime configuration", // e); } } @Override public boolean hasComposite() { return true; } private void initialize() { if (wc != null && serverNameCombo != null) { boolean asfLayout = ((ServerWorkingCopy) wc).getAttribute(TcServer.KEY_ASF_LAYOUT, true); asfLayoutButton.setSelection(asfLayout); s2LayoutButton.setSelection(!asfLayout); // add all directories that have a server configuration serverNameCombo.removeAll(); IPath path = wc.getRuntime().getLocation(); File file = new File(path.toFile(), SERVER_PATH); if (file.exists()) { File[] serverDirectories = file.listFiles(); for (File directory : serverDirectories) { if (directory.isDirectory() && new File(directory, "conf").exists() && !new File(directory, "TOMCAT_LICENSE.txt").exists()) { serverNameCombo.add(directory.getName()); } } } } updateButtons(); } @Override public boolean isComplete() { if (wc == null) { return false; } return doValidate().isOK(); } protected void updateButtons() { serverNameCombo.setEnabled(s2LayoutButton.getSelection()); serverNameLabel.setEnabled(s2LayoutButton.getSelection()); } protected void validate() { if (wc == null) { wizard.setMessage("", IMessageProvider.ERROR); return; } IStatus status = doValidate(); 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(); } @Override public void performFinish(IProgressMonitor monitor) throws CoreException { // reset completion status in case the wizard is re-used setComplete(false); // re-trigger import of configuration to propagate exception TcServerUtil.importRuntimeConfiguration(wc, monitor); } }