Java tutorial
/******************************************************************************* * Copyright (C) 2007, Robin Rosenberg <robin.rosenberg@dewire.com> * Copyright (C) 2006, Shawn O. Pearce <spearce@spearce.org> * * 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 *******************************************************************************/ package org.eclipse.egit.core.test; import java.io.ByteArrayInputStream; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.net.URL; 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.IWorkspaceRoot; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Platform; import org.eclipse.jdt.core.IClasspathEntry; import org.eclipse.jdt.core.ICompilationUnit; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.core.IPackageFragment; import org.eclipse.jdt.core.IPackageFragmentRoot; import org.eclipse.jdt.core.IType; import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.launching.JavaRuntime; import org.eclipse.jgit.util.FileUtils; import org.osgi.framework.Bundle; public class TestProject { public IProject project; public IJavaProject javaProject; private IPackageFragmentRoot sourceFolder; private String location; private TestUtils testUtils = new TestUtils(); /** * @throws CoreException * If project already exists */ public TestProject() throws CoreException { this(false); } public TestProject(boolean remove) throws CoreException { this(remove, "Project-1"); } /** * @param remove * should project be removed if already exists * @param projectName * @throws CoreException */ public TestProject(final boolean remove, String projectName) throws CoreException { IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); project = root.getProject(projectName); if (remove) project.delete(true, null); project.create(null); project.open(null); location = project.getLocation().toOSString(); javaProject = JavaCore.create(project); IFolder binFolder = createBinFolder(); setJavaNature(); javaProject.setRawClasspath(new IClasspathEntry[0], null); createOutputFolder(binFolder); addSystemLibraries(); } public IProject getProject() { return project; } public IJavaProject getJavaProject() { return javaProject; } public void addJar(String plugin, String jar) throws JavaModelException { Path result = findFileInPlugin(plugin, jar); IClasspathEntry[] oldEntries = javaProject.getRawClasspath(); IClasspathEntry[] newEntries = new IClasspathEntry[oldEntries.length + 1]; System.arraycopy(oldEntries, 0, newEntries, 0, oldEntries.length); newEntries[oldEntries.length] = JavaCore.newLibraryEntry(result, null, null); javaProject.setRawClasspath(newEntries, null); } public IPackageFragment createPackage(String name) throws CoreException { if (sourceFolder == null) sourceFolder = createSourceFolder(); return sourceFolder.createPackageFragment(name, false, null); } public IType createType(IPackageFragment pack, String cuName, String source) throws JavaModelException { StringBuilder buf = new StringBuilder(); buf.append("package " + pack.getElementName() + ";\n"); buf.append("\n"); buf.append(source); ICompilationUnit cu = pack.createCompilationUnit(cuName, buf.toString(), false, null); return cu.getTypes()[0]; } public IFile createFile(String name, byte[] content) throws Exception { IFile file = project.getFile(name); InputStream inputStream = new ByteArrayInputStream(content); file.create(inputStream, true, null); return file; } public IFolder createFolder(String name) throws Exception { IFolder folder = project.getFolder(name); folder.create(true, true, null); IFile keep = project.getFile(name + "/keep"); keep.create(new ByteArrayInputStream(new byte[] { 0 }), true, null); return folder; } public void dispose() throws CoreException, IOException { waitForIndexer(); if (project.exists()) project.delete(true, true, null); else { File f = new File(location); if (f.exists()) FileUtils.delete(f, FileUtils.RECURSIVE | FileUtils.RETRY); } } private IFolder createBinFolder() throws CoreException { IFolder binFolder = project.getFolder("bin"); binFolder.create(false, true, null); return binFolder; } private void setJavaNature() throws CoreException { IProjectDescription description = project.getDescription(); description.setNatureIds(new String[] { JavaCore.NATURE_ID }); project.setDescription(description, null); } private void createOutputFolder(IFolder binFolder) throws JavaModelException { IPath outputLocation = binFolder.getFullPath(); javaProject.setOutputLocation(outputLocation, null); } public IPackageFragmentRoot createSourceFolder() throws CoreException { IFolder folder = project.getFolder("src"); folder.create(false, true, null); IPackageFragmentRoot root = javaProject.getPackageFragmentRoot(folder); IClasspathEntry[] oldEntries = javaProject.getRawClasspath(); IClasspathEntry[] newEntries = new IClasspathEntry[oldEntries.length + 1]; System.arraycopy(oldEntries, 0, newEntries, 0, oldEntries.length); newEntries[oldEntries.length] = JavaCore.newSourceEntry(root.getPath()); javaProject.setRawClasspath(newEntries, null); return root; } private void addSystemLibraries() throws JavaModelException { IClasspathEntry[] oldEntries = javaProject.getRawClasspath(); IClasspathEntry[] newEntries = new IClasspathEntry[oldEntries.length + 1]; System.arraycopy(oldEntries, 0, newEntries, 0, oldEntries.length); newEntries[oldEntries.length] = JavaRuntime.getDefaultJREContainerEntry(); javaProject.setRawClasspath(newEntries, null); } private Path findFileInPlugin(String plugin, String file) { Bundle bundle = Platform.getBundle(plugin); URL resource = bundle.getResource(file); return new Path(resource.getPath()); } public void waitForIndexer() { // new SearchEngine().searchAllTypeNames(ResourcesPlugin.getWorkspace(), // null, null, IJavaSearchConstants.EXACT_MATCH, // IJavaSearchConstants.CASE_SENSITIVE, // IJavaSearchConstants.CLASS, SearchEngine // .createJavaSearchScope(new IJavaElement[0]), // new ITypeNameRequestor() { // public void acceptClass(char[] packageName, // char[] simpleTypeName, char[][] enclosingTypeNames, // String path) { // } // public void acceptInterface(char[] packageName, // char[] simpleTypeName, char[][] enclosingTypeNames, // String path) { // } // }, IJavaSearchConstants.WAIT_UNTIL_READY_TO_SEARCH, null); } public String getFileContent(String filepath) throws Exception { IFile file = project.getFile(filepath); InputStream stream = file.getContents(); return testUtils.slurpAndClose(stream); } /** * @return Returns the sourceFolder. */ public IPackageFragmentRoot getSourceFolder() { return sourceFolder; } /** * @param sourceFolder The sourceFolder to set. */ public void setSourceFolder(IPackageFragmentRoot sourceFolder) { this.sourceFolder = sourceFolder; } }