Java tutorial
/******************************************************************************* * Copyright (c) 2003, 2013 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 *******************************************************************************/ package org.eclipse.wst.server.ui.internal; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.eclipse.core.runtime.*; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.ProgressMonitorDialog; import org.eclipse.jface.operation.IRunnableWithProgress; import org.eclipse.jface.preference.PreferencePage; import org.eclipse.jface.util.ConfigureColumns; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.window.IShellProvider; import org.eclipse.jface.window.Window; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.*; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchPreferencePage; import org.eclipse.ui.PlatformUI; import org.eclipse.wst.server.core.*; import org.eclipse.wst.server.core.internal.IRuntimeLocator; import org.eclipse.wst.server.core.internal.ServerPlugin; import org.eclipse.wst.server.core.internal.facets.FacetUtil; import org.eclipse.wst.server.ui.internal.viewers.RuntimeComposite; import org.eclipse.wst.server.ui.internal.wizard.TaskWizard; import org.eclipse.wst.server.ui.internal.wizard.WizardTaskUtil; import org.eclipse.wst.server.ui.internal.wizard.fragment.NewRuntimeWizardFragment; import org.eclipse.wst.server.ui.wizard.WizardFragment; /** * The preference page that holds server runtimes. */ public class RuntimePreferencePage extends PreferencePage implements IWorkbenchPreferencePage, IRuntimeLifecycleListener, IShellProvider { protected Button edit; protected Button remove; protected Label pathLabel; RuntimeComposite runtimeComp; /** * RuntimePreferencesPage constructor comment. */ public RuntimePreferencePage() { super(); noDefaultAndApplyButton(); ServerCore.addRuntimeLifecycleListener(this); } /** * Create the preference options. * * @param parent org.eclipse.swt.widgets.Composite * @return org.eclipse.swt.widgets.Control */ protected Control createContents(Composite parent) { initializeDialogUnits(parent); PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, ContextIds.PREF_GENERAL); Composite composite = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.horizontalSpacing = convertHorizontalDLUsToPixels(4); layout.verticalSpacing = convertVerticalDLUsToPixels(3); layout.marginWidth = 0; layout.marginHeight = 0; layout.numColumns = 2; composite.setLayout(layout); GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL); composite.setLayoutData(data); Label label = new Label(composite, SWT.WRAP); data = new GridData(GridData.HORIZONTAL_ALIGN_FILL); data.horizontalSpan = 2; label.setLayoutData(data); label.setText(Messages.preferenceRuntimesDescription); label = new Label(composite, SWT.WRAP); data = new GridData(GridData.HORIZONTAL_ALIGN_FILL); data.horizontalSpan = 2; data.verticalIndent = 5; label.setLayoutData(data); label.setText(Messages.preferenceRuntimesTable); runtimeComp = new RuntimeComposite(composite, SWT.NONE, new RuntimeComposite.RuntimeSelectionListener() { public void runtimeSelected(IRuntime runtime) { if (runtime == null) { edit.setEnabled(false); remove.setEnabled(false); pathLabel.setText(""); } else { IStatus status = runtime.validate(new NullProgressMonitor()); if (status != null && status.getSeverity() == IStatus.ERROR) { Color c = pathLabel.getDisplay().getSystemColor(SWT.COLOR_RED); pathLabel.setForeground(c); pathLabel.setText(status.getMessage()); } else if (runtime.getLocation() != null) { pathLabel.setForeground(edit.getForeground()); pathLabel.setText(runtime.getLocation() + ""); } else pathLabel.setText(""); if (runtime.isReadOnly()) { edit.setEnabled(false); remove.setEnabled(false); } else { if (runtime.getRuntimeType() != null) edit.setEnabled(ServerUIPlugin.hasWizardFragment(runtime.getRuntimeType().getId())); else edit.setEnabled(false); remove.setEnabled(true); } } } }); runtimeComp.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL)); Composite buttonComp = new Composite(composite, SWT.NONE); layout = new GridLayout(); layout.horizontalSpacing = 0; layout.verticalSpacing = convertVerticalDLUsToPixels(3); layout.marginWidth = 0; layout.marginHeight = 0; layout.numColumns = 1; buttonComp.setLayout(layout); data = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL); buttonComp.setLayoutData(data); Button add = SWTUtil.createButton(buttonComp, Messages.add); final RuntimeComposite runtimeComp2 = runtimeComp; add.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { if (showWizard(null) == Window.CANCEL) return; runtimeComp2.refresh(); } }); edit = SWTUtil.createButton(buttonComp, Messages.edit); edit.setEnabled(false); edit.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { IRuntime runtime = runtimeComp2.getSelectedRuntime(); if (runtime != null) { IRuntimeWorkingCopy runtimeWorkingCopy = runtime.createWorkingCopy(); if (showWizard(runtimeWorkingCopy) != Window.CANCEL) { try { runtimeComp2.refresh(runtime); } catch (Exception ex) { // ignore } } } } }); remove = SWTUtil.createButton(buttonComp, Messages.remove); remove.setEnabled(false); remove.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { IRuntime runtime = runtimeComp.getSelectedRuntime(); if (removeRuntime(runtime)) runtimeComp2.remove(runtime); } }); Button search = SWTUtil.createButton(buttonComp, Messages.search); data = (GridData) search.getLayoutData(); data.verticalIndent = 9; search.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { try { // select a target directory for the search DirectoryDialog directoryDialog = new DirectoryDialog(getShell()); directoryDialog.setMessage(Messages.dialogRuntimeSearchMessage); directoryDialog.setText(Messages.dialogRuntimeSearchTitle); String pathStr = directoryDialog.open(); if (pathStr == null) return; final IPath path = new Path(pathStr); final ProgressMonitorDialog dialog = new ProgressMonitorDialog(getShell()); dialog.setBlockOnOpen(false); dialog.setCancelable(true); dialog.open(); final IProgressMonitor monitor = dialog.getProgressMonitor(); final IRuntimeLocator[] locators = ServerPlugin.getRuntimeLocators(); monitor.beginTask(Messages.dialogRuntimeSearchProgress, 100 * locators.length + 10); final List<IRuntimeWorkingCopy> list = new ArrayList<IRuntimeWorkingCopy>(); final IRuntimeLocator.IRuntimeSearchListener listener = new IRuntimeLocator.IRuntimeSearchListener() { public void runtimeFound(final IRuntimeWorkingCopy runtime) { dialog.getShell().getDisplay().syncExec(new Runnable() { public void run() { monitor.subTask(runtime.getName()); } }); list.add(runtime); } }; IRunnableWithProgress runnable = new IRunnableWithProgress() { public void run(IProgressMonitor monitor2) { int size = locators.length; for (int i = 0; i < size; i++) { if (!monitor2.isCanceled()) try { locators[i].searchForRuntimes(path, listener, monitor2); } catch (CoreException ce) { if (Trace.WARNING) { Trace.trace(Trace.STRING_WARNING, "Error locating runtimes: " + locators[i].getId(), ce); } } } if (Trace.INFO) { Trace.trace(Trace.STRING_INFO, "Done search"); } } }; dialog.run(true, true, runnable); if (Trace.FINER) { Trace.trace(Trace.STRING_FINER, "Found runtimes: " + list.size()); } if (!monitor.isCanceled()) { if (list.isEmpty()) { EclipseUtil.openError(getShell(), Messages.infoNoRuntimesFound); return; } monitor.worked(5); if (Trace.FINER) { Trace.trace(Trace.STRING_FINER, "Removing duplicates"); } List<IRuntime> good = new ArrayList<IRuntime>(); Iterator iterator2 = list.iterator(); while (iterator2.hasNext()) { boolean dup = false; IRuntime wc = (IRuntime) iterator2.next(); IRuntime[] runtimes = ServerCore.getRuntimes(); if (runtimes != null) { int size = runtimes.length; for (int i = 0; i < size; i++) { if (runtimes[i].getLocation() != null && runtimes[i].getLocation().equals(wc.getLocation())) dup = true; } } if (!dup) good.add(wc); } monitor.worked(5); if (Trace.FINER) { Trace.trace(Trace.STRING_FINER, "Adding runtimes: " + good.size()); } Iterator iterator = good.iterator(); while (iterator.hasNext()) { IRuntimeWorkingCopy wc = (IRuntimeWorkingCopy) iterator.next(); wc.save(false, monitor); } monitor.done(); } dialog.close(); } catch (Exception ex) { if (Trace.SEVERE) { Trace.trace(Trace.STRING_SEVERE, "Error finding runtimes", ex); } } runtimeComp2.refresh(); } }); Button columnsButton = SWTUtil.createButton(buttonComp, Messages.actionColumns); data = (GridData) columnsButton.getLayoutData(); final RuntimePreferencePage thisClass = this; columnsButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { ConfigureColumns.forTable(runtimeComp.getTable(), thisClass); } }); pathLabel = new Label(parent, SWT.NONE); pathLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); Dialog.applyDialogFont(composite); return composite; } protected boolean removeRuntime(IRuntime runtime) { if (runtime == null) return false; // check for use IServer[] servers = ServerCore.getServers(); List<IServer> list = new ArrayList<IServer>(); if (servers != null) { int size = servers.length; for (int i = 0; i < size; i++) { if (runtime.equals(servers[i].getRuntime())) list.add(servers[i]); } } boolean inUse = false; try { inUse = FacetUtil.isRuntimeTargeted(runtime); } catch (Throwable t) { // ignore - facet framework not found } if (!list.isEmpty() || inUse) { DeleteRuntimeDialog dialog = new DeleteRuntimeDialog(getShell(), !list.isEmpty(), inUse); if (dialog.open() != 0) return false; if (dialog.isDeleteServers()) { Iterator iter = list.iterator(); while (iter.hasNext()) { try { IServer server = (IServer) iter.next(); server.delete(); } catch (Exception e) { if (Trace.SEVERE) { Trace.trace(Trace.STRING_SEVERE, "Error deleting server", e); } } } } if (dialog.isRemoveTargets()) { try { FacetUtil.removeTargets(runtime, new NullProgressMonitor()); } catch (Throwable t) { // ignore - facet framework not found } } } try { runtime.delete(); } catch (Exception e) { if (Trace.SEVERE) { Trace.trace(Trace.STRING_SEVERE, "Error deleting runtime", e); } } return true; } protected int showWizard(final IRuntimeWorkingCopy runtimeWorkingCopy) { String title = null; WizardFragment fragment = null; TaskModel taskModel = new TaskModel(); if (runtimeWorkingCopy == null) { title = Messages.wizNewRuntimeWizardTitle; fragment = new WizardFragment() { protected void createChildFragments(List<WizardFragment> list) { list.add(new NewRuntimeWizardFragment()); list.add(WizardTaskUtil.SaveRuntimeFragment); } }; } else { title = Messages.wizEditRuntimeWizardTitle; final WizardFragment fragment2 = ServerUIPlugin .getWizardFragment(runtimeWorkingCopy.getRuntimeType().getId()); if (fragment2 == null) { edit.setEnabled(false); return Window.CANCEL; } taskModel.putObject(TaskModel.TASK_RUNTIME, runtimeWorkingCopy); fragment = new WizardFragment() { protected void createChildFragments(List<WizardFragment> list) { list.add(fragment2); list.add(WizardTaskUtil.SaveRuntimeFragment); } }; } TaskWizard wizard = new TaskWizard(title, fragment, taskModel); wizard.setForcePreviousAndNextButtons(true); WizardDialog dialog = new WizardDialog(getShell(), wizard); return dialog.open(); } protected IRuntime getSelection(ISelection sel2) { IStructuredSelection sel = (IStructuredSelection) sel2; return (IRuntime) sel.getFirstElement(); } /** * Initializes this preference page using the passed workbench. * * @param workbench the current workbench */ public void init(IWorkbench workbench) { // do nothing } /** * @see org.eclipse.jface.preference.PreferencePage#performOk() */ public boolean performOk() { return true; } /** * @see org.eclipse.jface.dialogs.DialogPage#setVisible(boolean) */ public void setVisible(boolean visible) { super.setVisible(visible); if (visible) setTitle(Messages.preferenceRuntimesTitleLong); } @Override public void dispose() { ServerCore.removeRuntimeLifecycleListener(this); super.dispose(); } public void runtimeChanged(final IRuntime runtime) { final RuntimeComposite runtimeComp2 = this.runtimeComp; Display.getDefault().asyncExec(new Runnable() { public void run() { runtimeComp2.refresh(runtime); } }); } public void runtimeAdded(final IRuntime runtime) { final RuntimeComposite runtimeComp2 = this.runtimeComp; Display.getDefault().asyncExec(new Runnable() { public void run() { runtimeComp2.refresh(); } }); } public void runtimeRemoved(final IRuntime runtime) { final RuntimeComposite runtimeComp2 = this.runtimeComp; Display.getDefault().asyncExec(new Runnable() { public void run() { runtimeComp2.refresh(); } }); } }