TDL execution property page and command.

package org.etsi.mts.tdl.execution.java.eclipse.commands;

import java.io.IOException;

import org.eclipse.core.commands.AbstractHandler;

import org.eclipse.core.commands.ExecutionEvent;

import org.eclipse.core.commands.ExecutionException;

import org.eclipse.core.commands.IHandler;

import org.eclipse.core.resources.IContainer;

import org.eclipse.core.resources.IFile;

import org.eclipse.core.resources.IFolder;

import org.eclipse.core.resources.IResource;

import org.eclipse.core.resources.ProjectScope;

import org.eclipse.core.resources.ResourcesPlugin;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Path;

import org.eclipse.core.runtime.Status;

import org.eclipse.core.runtime.jobs.Job;

import org.eclipse.emf.common.util.URI;

import org.eclipse.emf.ecore.resource.Resource;

import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;

import org.eclipse.jface.viewers.ISelection;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.ui.handlers.HandlerUtil;

import org.etsi.mts.tdl.Package;

import org.etsi.mts.tdl.execution.java.codegen.JUnitTestGenerator;

import org.etsi.mts.tdl.execution.java.codegen.Settings;

import org.etsi.mts.tdl.execution.java.eclipse.ui.PropertyPage;

import org.osgi.service.prefs.Preferences;

public class RenderHandler extends AbstractHandler implements IHandler {

	@Override

	public Object execute(ExecutionEvent event) throws ExecutionException {

		IFile tdl = null;

		ISelection selection = HandlerUtil.getCurrentSelection(event);

		if (selection instanceof IStructuredSelection && !selection.isEmpty()) {

			Object element = ((IStructuredSelection) selection).getFirstElement();

			if (element instanceof IFile) {

				String ext = ((IFile) element).getFileExtension();

				if (ext.toLowerCase().contains("tdl")) {

					tdl = (IFile) element;

				}

			}

		}

		if (tdl == null)

			return null;

		ResourceSetImpl rs = new ResourceSetImpl();

		URI uri = URI.createPlatformResourceURI(tdl.getFullPath().toString(), true);

		Resource resource = rs.getResource(uri, true);

		Package model = (Package) resource.getContents().get(0);

		ProjectScope ps = new ProjectScope(tdl.getProject());

		Preferences preferences = ps.getNode(PropertyPage.PREFERENCE_SCOPE);

		IContainer root = ResourcesPlugin.getWorkspace().getRoot();

		final IFolder generationDir = root.getFolder(new Path(preferences.get(Settings.OUTPUT_DIR, "")));

		Settings settings = new Settings(preferences.get(Settings.OUTPUT_DIR, ""),

				generationDir.getLocation().toFile(),

				preferences.get(Settings.PACKAGE, ""),

				preferences.get(Settings.INJECTOR, ""),

				preferences.get(Settings.DATE_FORMAT, ""));

		JUnitTestGenerator generator = new JUnitTestGenerator(model, settings);

		final String taskName = "Render JUnit";

		final Job j = new Job(taskName) {

			@Override

			public IStatus run(final IProgressMonitor monitor) {

				try {

					generator.generate();

				} catch (IOException e) {

					return new Status(IStatus.ERROR, getClass(), taskName +  " failed", e);

				}

				try {

					generationDir.refreshLocal(IResource.DEPTH_INFINITE, monitor);

				} catch (CoreException e) {

					return e.getStatus();

				}

				return Status.OK_STATUS;

			}

		};

		j.setUser(true);

		j.setPriority(Job.INTERACTIVE);

		j.schedule();

		return null;

	}

}

package org.etsi.mts.tdl.execution.java.eclipse.ui;

import java.util.Arrays;

import java.util.Hashtable;

import java.util.List;

import java.util.Map;

import org.eclipse.core.resources.IContainer;

import org.eclipse.core.resources.IFolder;

import org.eclipse.core.resources.IProject;

import org.eclipse.core.resources.ProjectScope;

import org.eclipse.core.resources.ResourcesPlugin;

import org.eclipse.core.runtime.IAdaptable;

import org.eclipse.core.runtime.IPath;

import org.eclipse.core.runtime.Path;

import org.eclipse.jface.preference.FieldEditor;

import org.eclipse.jface.preference.FieldEditorPreferencePage;

import org.eclipse.jface.preference.IPreferenceStore;

import org.eclipse.jface.preference.StringButtonFieldEditor;

import org.eclipse.jface.preference.StringFieldEditor;

import org.eclipse.jface.util.PropertyChangeEvent;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.ui.IWorkbenchPropertyPage;

import org.eclipse.ui.dialogs.ContainerSelectionDialog;

import org.eclipse.ui.preferences.ScopedPreferenceStore;

import org.etsi.mts.tdl.execution.java.codegen.Settings;

public class PropertyPage extends FieldEditorPreferencePage implements IWorkbenchPropertyPage {

	public static final String PREFERENCE_SCOPE = "org.etsi.mts.tdl";

	private static final List<String> REQUIRED_SETTINGS = Arrays.asList(new String[] { Settings.OUTPUT_DIR, Settings.INJECTOR });

	protected IAdaptable element;

	protected Map<FieldEditor, String> fields = new Hashtable<FieldEditor, String>();

	public PropertyPage() {

		super(GRID);

	}

	@Override

	public IAdaptable getElement() {

		return element;

	}

	@Override

	public void setElement(IAdaptable element) {

		this.element = element;

	}

	@Override

	protected IPreferenceStore doGetPreferenceStore() {

		ProjectScope ps = new ProjectScope((IProject) this.element);

		return new ScopedPreferenceStore(ps, PREFERENCE_SCOPE);

	}

	@Override

	protected void initialize() {

		for (FieldEditor e : fields.keySet()) {

			String value = getPreferenceStore().getString(e.getPreferenceName());

			fields.put(e, value);

			initialize(e.getPreferenceName(), value, e);

		}

		super.initialize();

	}

	protected void initialize(String name, String value, FieldEditor e) {

	}

	@Override

	protected void addField(FieldEditor editor) {

		super.addField(editor);

		fields.put(editor, "");

	}

	@Override

	public void propertyChange(PropertyChangeEvent event) {

		super.propertyChange(event);

		if (event.getProperty().equals(FieldEditor.VALUE)) {

			FieldEditor e = (FieldEditor) event.getSource();

			String name = e.getPreferenceName();

			String value = (String) event.getNewValue();

			fields.put(e, value);

			initialize(name, value, e);

			checkState();

		}

	}

	@Override

	protected void checkState() {

		setErrorMessage(null);

		super.checkState();

	}

	@Override

	protected void createFieldEditors() {

		Composite parent = getFieldEditorParent();

		FieldEditor outDir = new ContainerFieldEditor(Settings.OUTPUT_DIR, "Output folder", parent) {

			@Override

			public boolean isValid() {

				return PropertyPage.this.isValid(this) && doCheckState();

			}

		};

		addField(outDir);

		parent = getFieldEditorParent();

		StringFieldEditor outPackage = new StringFieldEditor(Settings.PACKAGE, "Package", parent);

		addField(outPackage);

		parent = getFieldEditorParent();

		StringFieldEditor injector = new StringFieldEditor(Settings.INJECTOR, "Guice module", parent);

		addField(injector);

		parent = getFieldEditorParent();

		StringFieldEditor dateFormat = new StringFieldEditor(Settings.DATE_FORMAT, "Date format", parent);

		addField(dateFormat);

	}

	private boolean isValid(FieldEditor e) {

		String name = e.getPreferenceName();

		String value = fields.get(e);

		if (REQUIRED_SETTINGS.contains(name)) {

			if (value.isEmpty()) {

				setErrorMessage(String.format("%s must be selected!", e.getLabelText()));

				return false;

			}

		}

		return true;

	}

}

class ContainerFieldEditor extends StringButtonFieldEditor {

	public ContainerFieldEditor(String name, String label, Composite parent) {

		super(name, label, parent);

	}

	@Override

	protected String changePressed() {

		IContainer root = ResourcesPlugin.getWorkspace().getRoot();

		ContainerSelectionDialog d = new ContainerSelectionDialog(getShell(), root, true, "Select output folder");

		int result = d.open();

		if (result == 0) {

			Object[] dir = d.getResult();

			if (dir.length > 0)

				return dir[0].toString();

		}

		return null;

	}

	@Override

	protected boolean doCheckState() {

		String pathText = getTextControl().getText();

		IPath path = new Path(pathText);

		IContainer root = ResourcesPlugin.getWorkspace().getRoot();

		IFolder f;

		try {

			f = root.getFolder(path);

		} catch (IllegalArgumentException e) {

			setErrorMessage(e.getMessage());

			return false;

		}

		if (!f.exists())

			setErrorMessage(pathText + " does not exist!");

		return f != null && f.exists();

	}

}