private CompilationUnit getCompilationUnit(SourceFile sourceFile) {
CompilationUnit compilationUnit;
if (Files.exists(sourceFile.getOutputPath())) {
try {
compilationUnit = JavaParser.parse(sourceFile.getOutputPath().toFile());
} catch (Throwable t) {
throw new RuntimeException(t);
}
} else {
compilationUnit = new CompilationUnit();
compilationUnit.setComment(
new LineComment(" Generated by GraphWalker (http://www.graphwalker.org)"));
if (!"".equals(sourceFile.getPackageName())) {
compilationUnit.setPackage(createPackageDeclaration(sourceFile));
}
compilationUnit.setImports(
Arrays.asList(
new ImportDeclaration(
new NameExpr("org.graphwalker.java.annotation.Model"), false, false),
new ImportDeclaration(
new NameExpr("org.graphwalker.java.annotation.Vertex"), false, false),
new ImportDeclaration(
new NameExpr("org.graphwalker.java.annotation.Edge"), false, false)));
ASTHelper.addTypeDeclaration(compilationUnit, getInterfaceName(sourceFile));
}
return compilationUnit;
}
private static void write(ContextFactory factory, SourceFile file) {
try {
RuntimeModel model = factory.create(file.getInputPath()).getModel();
String source = generator.generate(file, model);
Files.createDirectories(file.getOutputPath().getParent());
Files.write(
file.getOutputPath(),
source.getBytes(Charset.forName("UTF-8")),
StandardOpenOption.CREATE,
StandardOpenOption.TRUNCATE_EXISTING);
} catch (Throwable t) {
throw new CodeGeneratorException(t);
}
}
private ClassOrInterfaceDeclaration getInterfaceName(SourceFile sourceFile) {
ClassOrInterfaceDeclaration classOrInterfaceDeclaration =
new ClassOrInterfaceDeclaration(ModifierSet.PUBLIC, false, sourceFile.getFileName());
List<MemberValuePair> memberValuePairs = new ArrayList<>();
memberValuePairs.add(
new MemberValuePair(
"file",
new StringLiteralExpr(
sourceFile.getRelativePath().toString().replace(File.separator, "/"))));
List<AnnotationExpr> annotations = new ArrayList<>();
annotations.add(new NormalAnnotationExpr(ASTHelper.createNameExpr("Model"), memberValuePairs));
classOrInterfaceDeclaration.setAnnotations(annotations);
classOrInterfaceDeclaration.setInterface(true);
return classOrInterfaceDeclaration;
}
private PackageDeclaration createPackageDeclaration(SourceFile sourceFile) {
return new PackageDeclaration(ASTHelper.createNameExpr(sourceFile.getPackageName()));
}