Java tutorial
/******************************************************************************* * Copyright (c) 2014 OpenLegacy 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 * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * OpenLegacy Inc. - initial API and implementation *******************************************************************************/ package org.openlegacy.ide.eclipse.actions; import org.apache.log4j.Logger; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IFolder; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IWorkspaceRoot; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.jdt.core.IJavaElement; import org.eclipse.jdt.core.IJavaModel; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.IPackageFragmentRoot; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.internal.ui.wizards.TypedElementSelectionValidator; import org.eclipse.jdt.internal.ui.wizards.TypedViewerFilter; import org.eclipse.jdt.ui.JavaElementComparator; import org.eclipse.jdt.ui.JavaElementLabelProvider; import org.eclipse.jdt.ui.StandardJavaElementContentProvider; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.ILabelProvider; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.jface.window.Window; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; 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.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.IEditorDescriptor; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.PartInitException; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.dialogs.ElementTreeSelectionDialog; import org.eclipse.ui.part.FileEditorInput; import org.openlegacy.EntityDefinition; import org.openlegacy.designtime.UserInteraction; import org.openlegacy.ide.eclipse.Messages; import org.openlegacy.ide.eclipse.PluginConstants; import org.openlegacy.ide.eclipse.util.JavaUtils; import org.openlegacy.ide.eclipse.util.PathsUtil; import org.openlegacy.rpc.definitions.RpcEntityDefinition; import org.openlegacy.terminal.definitions.ScreenEntityDefinition; import java.io.File; import java.text.MessageFormat; public abstract class AbstractGenerateCodeDialog extends Dialog implements UserInteraction { private final static Logger logger = Logger.getLogger(AbstractGenerateCodeDialog.class); private Text sourceFolderPathText; private IPackageFragmentRoot sourceFolder; protected Text packageText; protected String packageValue; private IFile file; private boolean useAj = true; private boolean generateTest = true; protected AbstractGenerateCodeDialog(Shell shell, IFile file) { super(shell); this.file = file; } protected void addDialogFotter() { } @Override protected Control createDialogArea(Composite parent) { parent = new Composite(parent, SWT.NONE); GridLayout gridLayout = new GridLayout(); gridLayout.numColumns = 3; GridData gd = new GridData(); gd.widthHint = 400; parent.setLayoutData(gd); parent.setLayout(gridLayout); parent.getShell().setText(PluginConstants.TITLE); Label label = new Label(parent, SWT.NULL); label.setText(Messages.getString("label_source_folder")); setSourceFolderPathText(new Text(parent, SWT.SINGLE | SWT.BORDER)); getSourceFolderPathText().setEditable(false); gd = new GridData(GridData.FILL_HORIZONTAL); getSourceFolderPathText().setLayoutData(gd); Button sourceFolderButton = new Button(parent, SWT.NONE); sourceFolderButton.setText(Messages.getString("label_browse")); sourceFolderButton.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { handleSourceFolderButtonSelected(); } @Override public void widgetDefaultSelected(SelectionEvent e) { widgetSelected(e); } }); Label labelPackage = new Label(parent, SWT.NULL); labelPackage.setText(Messages.getString("label_package")); packageText = new Text(parent, SWT.SINGLE | SWT.BORDER); gd = new GridData(GridData.FILL_HORIZONTAL); getPackageText().setLayoutData(gd); getPackageText().addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent paramModifyEvent) { packageValue = getPackageText().getText(); } }); new Label(parent, SWT.NONE); loadPrefrences(); Button useAjButton = new Button(parent, SWT.CHECK); useAjButton.setText(Messages.getString("label_use_aj")); gd = new GridData(GridData.FILL_HORIZONTAL); gd.widthHint = 400; useAjButton.setLayoutData(gd); useAjButton.addSelectionListener(new SelectionListener() { @Override public void widgetDefaultSelected(SelectionEvent arg0) { setUseAj(true); } @Override public void widgetSelected(SelectionEvent arg0) { setUseAj(!isUseAj()); } }); useAjButton.setSelection(isUseAj() && isSupportAjGeneration()); useAjButton.setEnabled(isSupportAjGeneration()); Button generateTest = new Button(parent, SWT.CHECK); generateTest.setSelection(isSupportTestGeneration() && isGenerateTest()); generateTest.setText(Messages.getString("label_generate_test")); generateTest.setEnabled(isSupportTestGeneration()); gd = new GridData(GridData.FILL_HORIZONTAL); gd.widthHint = 400; generateTest.setLayoutData(gd); generateTest.addSelectionListener(new SelectionListener() { @Override public void widgetDefaultSelected(SelectionEvent arg0) { setGenerateTest(true); } @Override public void widgetSelected(SelectionEvent arg0) { setGenerateTest(!isGenerateTest()); } }); createDialogSpecific(parent); return parent; } protected boolean isPackageMandatory() { return true; } protected boolean isSupportTestGeneration() { return true; } protected boolean isSupportAjGeneration() { return true; } protected void createDialogSpecific(Composite parent) { // empty to allow override } protected abstract void loadPrefrences(); protected void handleSourceFolderButtonSelected() { IPackageFragmentRoot newSourceFolder = chooseContainer(); if (newSourceFolder == null) { return; } setSourceFolder(newSourceFolder); String newSourceFolderPath = JavaUtils.convertSourceFolderToString(newSourceFolder); getSourceFolderPathText().setText(newSourceFolderPath); } public void setSourceFolder(IPackageFragmentRoot sourceFolder) { this.sourceFolder = sourceFolder; } public IPackageFragmentRoot getSourceFolder() { return sourceFolder; } protected IPackageFragmentRoot chooseContainer() { IJavaElement initElement = getSourceFolder(); Class<?>[] acceptedClasses = new Class[] { IPackageFragmentRoot.class, IJavaProject.class }; TypedElementSelectionValidator validator = new TypedElementSelectionValidator(acceptedClasses, false) { @Override public boolean isSelectedValid(Object element) { try { if (element instanceof IJavaProject) { IJavaProject jproject = (IJavaProject) element; IPath path = jproject.getProject().getFullPath(); return (jproject.findPackageFragmentRoot(path) != null); } else if (element instanceof IPackageFragmentRoot) { return (((IPackageFragmentRoot) element).getKind() == IPackageFragmentRoot.K_SOURCE); } return true; } catch (JavaModelException e) { } return false; } }; acceptedClasses = new Class[] { IJavaModel.class, IPackageFragmentRoot.class, IJavaProject.class }; ViewerFilter filter = new TypedViewerFilter(acceptedClasses) { @Override public boolean select(Viewer viewer, Object parent, Object element) { if (element instanceof IPackageFragmentRoot) { try { return (((IPackageFragmentRoot) element).getKind() == IPackageFragmentRoot.K_SOURCE); } catch (JavaModelException e) { } } else if (element instanceof IJavaProject) { IJavaProject javaPr = (IJavaProject) element; return javaPr.isOpen(); } return super.select(viewer, parent, element); } }; StandardJavaElementContentProvider provider = new StandardJavaElementContentProvider(); ILabelProvider labelProvider = new JavaElementLabelProvider(JavaElementLabelProvider.SHOW_DEFAULT); ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(getShell(), labelProvider, provider); dialog.setValidator(validator); dialog.setComparator(new JavaElementComparator()); dialog.setTitle(""); //$NON-NLS-1$ dialog.setMessage(""); //$NON-NLS-1$ dialog.addFilter(filter); IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); dialog.setInput(JavaCore.create(root)); dialog.setInitialSelection(initElement); dialog.setHelpAvailable(false); if (dialog.open() == Window.OK) { Object element = dialog.getFirstResult(); if (element instanceof IJavaProject) { IJavaProject jproject = (IJavaProject) element; return jproject.getPackageFragmentRoot(jproject.getProject()); } else if (element instanceof IPackageFragmentRoot) { return (IPackageFragmentRoot) element; } return null; } return null; } private boolean validate() { if (getPackageText().getText().length() == 0 && isPackageMandatory()) { MessageDialog.openError(getShell(), PluginConstants.TITLE, Messages.getString("error_package_cannot_be_empty")); return false; } if (getSourceFolderPathText().getText().length() == 0) { MessageDialog.openError(getShell(), PluginConstants.TITLE, Messages.getString("error_source_folder_cannot_be_empty")); return false; } return true; } @Override protected void okPressed() { if (!validate()) { return; } savePreferences(); executeGenerate(); close(); } protected abstract void savePreferences(); protected abstract void executeGenerate(); @Override public boolean isOverride(final File file) { final Object[] result = new Object[1]; Display.getDefault().syncExec(new Runnable() { @Override public void run() { result[0] = MessageDialog.openQuestion(getShell(), PluginConstants.TITLE, MessageFormat.format(Messages.getString("question_override_file"), file.getName())); } }); return (Boolean) result[0]; } public String getPackageValue() { return packageValue; } public Text getSourceFolderPathText() { return sourceFolderPathText; } public void setSourceFolderPathText(Text sourceFolderPathText) { this.sourceFolderPathText = sourceFolderPathText; } public Text getPackageText() { return packageText; } public IFile getFile() { return file; } public IProject getProject() { return file.getProject(); } public boolean isUseAj() { return useAj; } public void setUseAj(boolean useAj) { this.useAj = useAj; } protected void setGenerateTest(boolean generateTest) { this.generateTest = generateTest; } public boolean isGenerateTest() { return generateTest; } @Override public void open(File file) { open(file, null); } @Override public void open(final File file, final EntityDefinition<?> entityDefinition) { Display.getDefault().asyncExec(new Runnable() { @Override public void run() { final IFolder folder = getProject() .getFolder(getSourceFolder().getPath() + "/" + PathsUtil.packageToPath(getPackageValue())); try { if (folder != null) { folder.refreshLocal(1, null); } } catch (CoreException e1) { logger.fatal(e1); } IWorkbenchPage page = PlatformUI.getWorkbench().getWorkbenchWindows()[0].getActivePage(); try { IFile javaFile = getProject().getFile(getSourceFolder().getPath().toPortableString() + "/" + PathsUtil.packageToPath(getPackageValue()) + "/" + file.getName()); IEditorDescriptor editorDescriptor = PlatformUI.getWorkbench().getEditorRegistry() .getDefaultEditor(javaFile.getName()); if (entityDefinition != null && entityDefinition instanceof ScreenEntityDefinition) { IEditorDescriptor descriptor = PlatformUI.getWorkbench().getEditorRegistry() .findEditor("com.openlegacy.enterprise.ide.eclipse.editors.ScreenEntityEditor"); if (descriptor != null) { editorDescriptor = descriptor; } } else if (entityDefinition != null && entityDefinition instanceof RpcEntityDefinition) { IEditorDescriptor descriptor = PlatformUI.getWorkbench().getEditorRegistry() .findEditor("com.openlegacy.enterprise.ide.eclipse.editors.RpcEntityEditor"); if (descriptor != null) { editorDescriptor = descriptor; } } page.openEditor(new FileEditorInput(javaFile), editorDescriptor.getId()); } catch (PartInitException e) { logger.fatal(e); } } }); } }