Java tutorial
/******************************************************************************* * Copyright Technophobia Ltd 2012 * * This file is part of the Substeps Eclipse Plugin. * * The Substeps Eclipse Plugin is free software: you can redistribute it and/or modify * it under the terms of the Eclipse Public License v1.0. * * The Substeps Eclipse Plugin is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * Eclipse Public License for more details. * * You should have received a copy of the Eclipse Public License * along with the Substeps Eclipse Plugin. If not, see <http://www.eclipse.org/legal/epl-v10.html>. ******************************************************************************/ package com.technophobia.substeps.junit.launcher.tab; import java.util.ArrayList; import java.util.Collection; import org.eclipse.core.resources.IFolder; import org.eclipse.core.resources.IResource; import org.eclipse.debug.core.ILaunchConfiguration; import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy; import org.eclipse.debug.ui.AbstractLaunchConfigurationTab; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.IEditorInput; import org.eclipse.ui.IEditorPart; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.PlatformUI; import com.technophobia.eclipse.transformer.Callback; import com.technophobia.substeps.FeatureEditorPlugin; import com.technophobia.substeps.junit.launcher.ProjectManagerSuppliedSubstepsLocationFinder; import com.technophobia.substeps.junit.launcher.model.LaunchModelFactory; import com.technophobia.substeps.junit.launcher.model.SubstepsLaunchModel; import com.technophobia.substeps.junit.launcher.model.SubstepsLaunchModelFactory; import com.technophobia.substeps.junit.launcher.tab.component.FeatureFileComponent; import com.technophobia.substeps.junit.launcher.tab.component.ProjectComponent; import com.technophobia.substeps.junit.launcher.tab.component.SubstepsFileComponent; import com.technophobia.substeps.junit.ui.SubstepsFeatureMessages; import com.technophobia.substeps.predicate.IsFeatureFolderPredicate; import com.technophobia.substeps.supplier.Predicate; public class SubstepsArgumentTab extends AbstractLaunchConfigurationTab { private final TabComponent projectComponent; private final TabComponent featureFileComponent; private final TabComponent substepsComponent; private final LaunchModelFactory launchModelFactory; public SubstepsArgumentTab() { this.launchModelFactory = new SubstepsLaunchModelFactory( new ProjectManagerSuppliedSubstepsLocationFinder()); final Callback onChangeCallback = onChange(); final ProjectComponent pc = new ProjectComponent(onChangeCallback); final Predicate<IFolder> isFeatureFolderPredicate = new IsFeatureFolderPredicate( FeatureEditorPlugin.instance().projectManager()); this.projectComponent = pc; this.featureFileComponent = new FeatureFileComponent(onChangeCallback, pc, isFeatureFolderPredicate); this.substepsComponent = new SubstepsFileComponent(onChangeCallback, pc); projectComponent.addDependentTabComponent(featureFileComponent); projectComponent.addDependentTabComponent(substepsComponent); } @Override public void createControl(final Composite parent) { final Composite comp = new Composite(parent, SWT.NONE); setControl(comp); PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), getHelpContextId()); final GridLayout layout = new GridLayout(); layout.numColumns = 3; comp.setLayout(layout); comp.setFont(parent.getFont()); projectComponent.create(comp); featureFileComponent.create(comp); substepsComponent.create(comp); } @Override public void initializeFrom(final ILaunchConfiguration config) { final SubstepsLaunchModel model = (SubstepsLaunchModel) launchModelFactory.createFrom(config); projectComponent.initializeFrom(model); featureFileComponent.initializeFrom(model); substepsComponent.initializeFrom(model); validatePage(); } @Override public String getName() { return SubstepsFeatureMessages.SubstepsLaunchConfigurationTab_tab_label; } @Override public void performApply(final ILaunchConfigurationWorkingCopy config) { final SubstepsLaunchModel launchModel = new SubstepsLaunchModel(); projectComponent.saveTo(launchModel); featureFileComponent.saveTo(launchModel); substepsComponent.saveTo(launchModel); launchModel.saveTo(config); } @Override public void setDefaults(final ILaunchConfigurationWorkingCopy configuration) { final IResource currentResource = getContext(); final SubstepsLaunchModel launchModel = new SubstepsLaunchModel(); if (currentResource != null) { configuration.rename(currentResource.getName()); projectComponent.setDefaultOn(launchModel, currentResource); featureFileComponent.setDefaultOn(launchModel, currentResource); substepsComponent.setDefaultOn(launchModel, currentResource); } launchModel.saveTo(configuration); } private Callback onChange() { return new Callback() { @Override public void callback() { final boolean result = validatePage(); if (result) { updateLaunchConfigurationDialog(); } } }; } private boolean validatePage() { setErrorMessage(null); setMessage(null); final Collection<String> errorMessages = new ArrayList<String>(); projectComponent.validate(errorMessages); if (errorMessages.isEmpty()) { featureFileComponent.validate(errorMessages); substepsComponent.validate(errorMessages); } if (!errorMessages.isEmpty()) { setErrorMessage(errorMessages.iterator().next()); return false; } return true; } /* * Returns the current resource element context from which to initialize * default settings, or <code>null</code> if none. * * @return resource context. */ private IResource getContext() { final IWorkbenchWindow activeWorkbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); if (activeWorkbenchWindow == null) { return null; } final IWorkbenchPage page = activeWorkbenchWindow.getActivePage(); if (page != null) { final ISelection selection = page.getSelection(); if (selection instanceof IStructuredSelection) { final IStructuredSelection ss = (IStructuredSelection) selection; if (!ss.isEmpty()) { final Object obj = ss.getFirstElement(); if (obj instanceof IResource) { return (IResource) obj; } } } final IEditorPart part = page.getActiveEditor(); if (part != null) { final IEditorInput input = part.getEditorInput(); return (IResource) input.getAdapter(IResource.class); } } return null; } }