Java tutorial
/******************************************************************************* * Copyright (c) 2010 Neil Bartlett. * 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: * Neil Bartlett - initial API and implementation *******************************************************************************/ package bndtools.wizards.project; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.io.IOException; import java.io.InputStream; import java.text.MessageFormat; import java.util.Collections; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Map.Entry; import org.bndtools.core.ui.wizards.shared.BuiltInTemplate; import org.bndtools.core.ui.wizards.shared.ISkippableWizardPage; import org.bndtools.core.ui.wizards.shared.TemplateParamsWizardPage; import org.bndtools.core.ui.wizards.shared.TemplateSelectionWizardPage; import org.bndtools.templating.Resource; import org.bndtools.templating.ResourceMap; import org.bndtools.templating.StringResource; import org.bndtools.templating.Template; import org.bndtools.utils.javaproject.JavaProjectUtils; import org.bndtools.utils.workspace.FileUtils; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IFolder; import org.eclipse.core.resources.IProject; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.SubMonitor; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.ui.wizards.NewJavaProjectWizardPageTwo; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.wizard.IWizardPage; import org.eclipse.ui.IWorkbench; import aQute.bnd.build.Project; import bndtools.Plugin; class NewBndProjectWizard extends AbstractNewBndProjectWizard { public static final String DEFAULT_TEMPLATE_ENGINE = "stringtemplate"; //$NON-NLS-1$ public static final String DEFAULT_BUNDLE_VERSION = "0.0.0.${tstamp}"; //$NON-NLS-1$ public static final String EMPTY_TEMPLATE_NAME = "\u00abEmpty\u00bb"; private TemplateSelectionWizardPage templatePage; private TemplateParamsWizardPage paramsPage; NewBndProjectWizard(final NewBndProjectWizardPageOne pageOne, final NewJavaProjectWizardPageTwo pageTwo) { super(pageOne, pageTwo); } @Override public void init(IWorkbench workbench, IStructuredSelection currentSelection) { super.init(workbench, currentSelection); BuiltInTemplate baseTemplate = new BuiltInTemplate(EMPTY_TEMPLATE_NAME, DEFAULT_TEMPLATE_ENGINE); baseTemplate.addInputResource(Project.BNDFILE, new StringResource("")); //$NON-NLS-1$ baseTemplate.setHelpPath("docs/empty_project.xml"); //$NON-NLS-1$ templatePage = new ProjectTemplateSelectionWizardPage("projectTemplateSelection", "project", baseTemplate); templatePage.setTitle("Select Project Template"); paramsPage = new TemplateParamsWizardPage(ProjectTemplateParam.valueStrings()); templatePage.addPropertyChangeListener(TemplateSelectionWizardPage.PROP_TEMPLATE, new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent evt) { Template template = templatePage.getTemplate(); pageOne.setTemplate(template); paramsPage.setTemplate(template); } }); setDefaultPageImageDescriptor(ImageDescriptor .createFromURL(Plugin.getDefault().getBundle().getEntry("icons/bndtools-wizban.png"))); } @Override public void addPages() { addPage(templatePage); addPage(pageOne); addPage(paramsPage); addPage(pageTwo); } @Override protected Map<String, String> getProjectTemplateParams() { // Project Name Map<ProjectTemplateParam, String> params = new HashMap<>(); params.put(ProjectTemplateParam.PROJECT_NAME, pageOne.getProjectName()); // Package Name String packageName = pageOne.getPackageName(); params.put(ProjectTemplateParam.BASE_PACKAGE_NAME, packageName); // Package Dir String packageDir = packageName.replace('.', '/'); params.put(ProjectTemplateParam.BASE_PACKAGE_DIR, packageDir); // Version params.put(ProjectTemplateParam.VERSION, DEFAULT_BUNDLE_VERSION); // Source Folders IJavaProject javaProject = pageTwo.getJavaProject(); Map<String, String> sourceOutputLocations = JavaProjectUtils.getSourceOutputLocations(javaProject); int nr = 1; for (Map.Entry<String, String> entry : sourceOutputLocations.entrySet()) { String src = entry.getKey(); String bin = entry.getValue(); if (nr == 1) { params.put(ProjectTemplateParam.SRC_DIR, src); params.put(ProjectTemplateParam.BIN_DIR, bin); nr = 2; } else if (nr == 2) { params.put(ProjectTemplateParam.TEST_SRC_DIR, src); params.put(ProjectTemplateParam.TEST_BIN_DIR, bin); nr = 2; } else { // if for some crazy reason we end up with more than 2 paths, we log them in // extension properties (we cannot write comments) but this should never happen // anyway since the second page will not complete if there are not exactly 2 paths // so this could only happen if someone adds another page (that changes them again) // TODO // model.genericSet("X-WARN-" + nr, "Ignoring source path " + src + " -> " + bin); nr++; } } try { String javaLevel = JavaProjectUtils.getJavaLevel(javaProject); if (javaLevel != null) params.put(ProjectTemplateParam.JAVA_LEVEL, javaLevel); } catch (Exception e) { Plugin.getDefault().getLog().log(new Status(IStatus.ERROR, Plugin.PLUGIN_ID, 0, String.format("Unable to get Java level for project %s", javaProject.getProject().getName()), e)); } Map<String, String> params_ = new HashMap<>(); for (Entry<ProjectTemplateParam, String> entry : params.entrySet()) params_.put(entry.getKey().getString(), entry.getValue()); Map<String, String> editedParams = paramsPage.getValues(); for (Entry<String, String> editedEntry : editedParams.entrySet()) { params_.put(editedEntry.getKey(), editedEntry.getValue()); } return params_; } @Override protected void generateProjectContent(IProject project, IProgressMonitor monitor, Map<String, String> params) throws IOException { Map<String, List<Object>> templateParams = new HashMap<>(); for (Entry<String, String> param : params.entrySet()) { templateParams.put(param.getKey(), Collections.<Object>singletonList(param.getValue())); } Template template = templatePage.getTemplate(); try { ResourceMap outputs; if (template != null) { outputs = template.generateOutputs(templateParams); } else { outputs = new ResourceMap(); // empty } SubMonitor progress = SubMonitor.convert(monitor, outputs.size() * 3); for (Entry<String, Resource> outputEntry : outputs.entries()) { String path = outputEntry.getKey(); Resource resource = outputEntry.getValue(); // Strip leading slashes from path while (path.startsWith("/")) path = path.substring(1); switch (resource.getType()) { case Folder: if (!path.isEmpty()) { IFolder folder = project.getFolder(path); FileUtils.mkdirs(folder, progress.newChild(1, SubMonitor.SUPPRESS_ALL_LABELS)); } break; case File: IFile file = project.getFile(path); FileUtils.mkdirs(file.getParent(), progress.newChild(1, SubMonitor.SUPPRESS_ALL_LABELS)); try (InputStream in = resource.getContent()) { if (file.exists()) file.setContents(in, 0, progress.newChild(1, SubMonitor.SUPPRESS_NONE)); else file.create(in, 0, progress.newChild(1, SubMonitor.SUPPRESS_NONE)); file.setCharset(resource.getTextEncoding(), progress.newChild(1)); } break; default: throw new IllegalArgumentException("Unknown resource type " + resource.getType()); } } } catch (Exception e) { String message = MessageFormat.format("Error generating project contents from template \"{0}\": {1}", template != null ? template.getName() : "<null>", e.getMessage()); throw new IOException(message); } } @Override public IWizardPage getPreviousPage(IWizardPage page) { IWizardPage prev = super.getPreviousPage(page); if (prev instanceof ISkippableWizardPage) { if (((ISkippableWizardPage) prev).shouldSkip()) { return getPreviousPage(prev); } } return prev; } @Override public IWizardPage getNextPage(IWizardPage page) { IWizardPage next = super.getNextPage(page); if (next instanceof ISkippableWizardPage) { if (((ISkippableWizardPage) next).shouldSkip()) { return getNextPage(next); } } return next; } }