@Test
public void testBasicAPIUsage() throws Exception {
// this test shows a basic usage of the Launcher API without command line
// and asserts there is no exception
SpoonAPI spoon = new Launcher();
spoon.addInputResource("src/test/resources/spoon/test/api");
spoon.setSourceOutputDirectory("target/spooned");
spoon.run();
Factory factory = spoon.getFactory();
for (CtPackage p : factory.Package().getAll()) {
spoon.getEnvironment().debugMessage("package: " + p.getQualifiedName());
}
for (CtType<?> s : factory.Class().getAll()) {
spoon.getEnvironment().debugMessage("class: " + s.getQualifiedName());
}
}
protected void generateProcessedSourceFilesUsingCUs() {
factory.getEnvironment().debugMessage("Generating source using compilation units...");
// Check output directory
if (outputDirectory == null) {
throw new RuntimeException("You should set output directory before generating source files");
}
// Create spooned directory
if (outputDirectory.isFile()) {
throw new RuntimeException("Output must be a directory");
}
if (!outputDirectory.exists()) {
if (!outputDirectory.mkdirs()) {
throw new RuntimeException("Error creating output directory");
}
}
try {
outputDirectory = outputDirectory.getCanonicalFile();
} catch (IOException e1) {
throw new SpoonException(e1);
}
factory.getEnvironment().debugMessage("Generating source files to: " + outputDirectory);
List<File> printedFiles = new ArrayList<File>();
for (spoon.reflect.cu.CompilationUnit cu : factory.CompilationUnit().getMap().values()) {
factory
.getEnvironment()
.debugMessage("Generating source for compilation unit: " + cu.getFile());
CtType<?> element = cu.getMainType();
CtPackage pack = element.getPackage();
// create package directory
File packageDir;
if (pack.getQualifiedName().equals(CtPackage.TOP_LEVEL_PACKAGE_NAME)) {
packageDir = new File(outputDirectory.getAbsolutePath());
} else {
// Create current package directory
packageDir =
new File(
outputDirectory.getAbsolutePath()
+ File.separatorChar
+ pack.getQualifiedName().replace('.', File.separatorChar));
}
if (!packageDir.exists()) {
if (!packageDir.mkdirs()) {
throw new RuntimeException("Error creating output directory");
}
}
// print type
try {
File file =
new File(
packageDir.getAbsolutePath()
+ File.separatorChar
+ element.getSimpleName()
+ DefaultJavaPrettyPrinter.JAVA_FILE_EXTENSION);
file.createNewFile();
// the path must be given relatively to to the working directory
InputStream is = getCompilationUnitInputStream(cu.getFile().getPath());
IOUtils.copy(is, new FileOutputStream(file));
if (!printedFiles.contains(file)) {
printedFiles.add(file);
}
} catch (Exception e) {
Launcher.LOGGER.error(e.getMessage(), e);
}
}
}
/** Creates a reference to an existing package. */
public CtPackageReference createReference(CtPackage pack) {
if (pack == null) {
throw new IllegalArgumentException();
}
return createReference(pack.getQualifiedName());
}