Java tutorial
/* * Copyright 2007 The Fornax Project Team, including the original * author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.fornax.cartridges.sculptor.wizard.util; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Set; import org.eclipse.core.resources.ICommand; import org.eclipse.core.resources.IContainer; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IFolder; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IProjectDescription; import org.eclipse.core.resources.IWorkspace; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.SubProgressMonitor; import org.eclipse.jdt.core.IClasspathEntry; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.PartInitException; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.ide.IDE; import org.fornax.cartridges.sculptor.wizard.PluginLog; public class EclipseHelper { public static IProject createRichClientProject(final String projectName, final List<IProject> referencedProjects, final Set<String> requiredBundles, final IProgressMonitor progressMonitor, final Shell theShell) { IProject project = null; try { progressMonitor.beginTask("", 10); progressMonitor.subTask("Creating project " + projectName); IWorkspace workspace = ResourcesPlugin.getWorkspace(); project = workspace.getRoot().getProject(projectName); // Clean up any old project information. if (project.exists()) { final boolean[] result = new boolean[1]; PlatformUI.getWorkbench().getDisplay().syncExec(new Runnable() { public void run() { result[0] = MessageDialog.openQuestion(theShell, "Existing project " + projectName + "?", "Do you want to overwrite the project '" + projectName + "' \nNote that everything inside the project '" + projectName + "' will be deleted if you confirm this dialog."); } }); if (result[0]) { project.delete(true, true, new SubProgressMonitor(progressMonitor, 1)); } else { return null; } } IJavaProject javaProject = JavaCore.create(project); IProjectDescription projectDescription = ResourcesPlugin.getWorkspace() .newProjectDescription(projectName); projectDescription.setLocation(null); project.create(projectDescription, new SubProgressMonitor(progressMonitor, 1)); List<IClasspathEntry> classpathEntries = new ArrayList<IClasspathEntry>(); if (referencedProjects.size() != 0) { projectDescription .setReferencedProjects(referencedProjects.toArray(new IProject[referencedProjects.size()])); for (IProject referencedProject : referencedProjects) { IClasspathEntry referencedProjectClasspathEntry = JavaCore .newProjectEntry(referencedProject.getFullPath()); classpathEntries.add(referencedProjectClasspathEntry); } } projectDescription.setNatureIds(new String[] { JavaCore.NATURE_ID, "org.eclipse.pde.PluginNature" }); ICommand java = projectDescription.newCommand(); java.setBuilderName(JavaCore.BUILDER_ID); ICommand manifest = projectDescription.newCommand(); manifest.setBuilderName("org.eclipse.pde.ManifestBuilder"); ICommand schema = projectDescription.newCommand(); schema.setBuilderName("org.eclipse.pde.SchemaBuilder"); projectDescription.setBuildSpec(new ICommand[] { java, manifest, schema }); project.open(new SubProgressMonitor(progressMonitor, 1)); project.setDescription(projectDescription, new SubProgressMonitor(progressMonitor, 1)); addSrcFolders(progressMonitor, project, classpathEntries); classpathEntries.add(JavaCore.newContainerEntry(new Path("org.eclipse.jdt.launching.JRE_CONTAINER"))); classpathEntries.add(JavaCore.newContainerEntry(new Path("org.eclipse.pde.core.requiredPlugins"))); javaProject.setRawClasspath(classpathEntries.toArray(new IClasspathEntry[classpathEntries.size()]), new SubProgressMonitor(progressMonitor, 1)); javaProject.setOutputLocation(new Path("/" + projectName + "/target/classes"), new SubProgressMonitor(progressMonitor, 1)); } catch (RuntimeException e) { throw e; } catch (Exception e) { throw new RuntimeException(e); } finally { progressMonitor.done(); } return project; } private static void addSrcFolders(final IProgressMonitor progressMonitor, IProject project, List<IClasspathEntry> classpathEntries) throws CoreException { List<String> srcFolders = new ArrayList<String>(); Set<String> srcClasspath = new HashSet<String>(); srcFolders.add("src"); srcFolders.add("src/main"); srcFolders.add("src/main/java"); srcClasspath.add(srcFolders.get(srcFolders.size() - 1)); srcFolders.add("src/main/resources"); srcClasspath.add(srcFolders.get(srcFolders.size() - 1)); srcFolders.add("src/main/resources/generator"); srcFolders.add("icons"); srcFolders.add("src/generated"); srcFolders.add("src/generated/java"); srcClasspath.add(srcFolders.get(srcFolders.size() - 1)); srcFolders.add("src/generated/resources"); srcClasspath.add(srcFolders.get(srcFolders.size() - 1)); srcFolders.add("src/test"); srcFolders.add("src/test/java"); srcClasspath.add(srcFolders.get(srcFolders.size() - 1)); srcFolders.add("src/test/resources"); srcClasspath.add(srcFolders.get(srcFolders.size() - 1)); srcFolders.add("src/test/generated"); srcFolders.add("src/test/generated/java"); srcClasspath.add(srcFolders.get(srcFolders.size() - 1)); srcFolders.add("src/test/generated/resources"); srcClasspath.add(srcFolders.get(srcFolders.size() - 1)); for (String src : srcFolders) { IFolder srcContainer = project.getFolder(src); if (!srcContainer.exists()) { srcContainer.create(false, true, new SubProgressMonitor(progressMonitor, 1)); } if (srcClasspath.contains(src)) { IClasspathEntry srcClasspathEntry = JavaCore.newSourceEntry(srcContainer.getFullPath()); classpathEntries.add(0, srcClasspathEntry); } } } public static IFile createFile(String name, IContainer container, String content, IProgressMonitor progressMonitor) { IFile file = container.getFile(new Path(name)); assertExist(file.getParent()); try { InputStream stream = new ByteArrayInputStream(content.getBytes(file.getCharset())); if (file.exists()) { file.setContents(stream, true, true, progressMonitor); } else { file.create(stream, true, progressMonitor); } stream.close(); } catch (RuntimeException e) { throw e; } catch (Exception e) { throw new RuntimeException(e.getMessage(), e); } progressMonitor.worked(1); return file; } /** * @param name * of the destination file * @param container * directory containing the the destination file * @param contentUrl * Url pointing to the src of the content * @param progressMonitor * used to interact with and show the user the current operation * status * @return */ public static IFile createFile(String name, IContainer container, URL contentUrl, IProgressMonitor progressMonitor) { IFile file = container.getFile(new Path(name)); InputStream inputStream = null; try { inputStream = contentUrl.openStream(); if (file.exists()) { file.setContents(inputStream, true, true, progressMonitor); } else { file.create(inputStream, true, progressMonitor); } inputStream.close(); } catch (RuntimeException e) { throw e; } catch (Exception e) { throw new RuntimeException(e.getMessage(), e); } finally { if (null != inputStream) { try { inputStream.close(); } catch (IOException e) { PluginLog.logError(e); } } } progressMonitor.worked(1); return file; } private static void assertExist(IContainer c) { if (!c.exists()) { if (!c.getParent().exists()) { assertExist(c.getParent()); } if (c instanceof IFolder) { try { ((IFolder) c).create(false, true, new NullProgressMonitor()); } catch (CoreException e) { throw new RuntimeException(e.getMessage(), e); } } } } public static void openFileToEdit(Shell s, final IFile file) { s.getDisplay().asyncExec(new Runnable() { public void run() { IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage(); try { IDE.openEditor(page, file, true); } catch (PartInitException e) { throw new RuntimeException(e.getMessage(), e); } } }); } }