JavaScript Compiler

Your JavaScript source file will look something like this:

include(org.my.project.JSClass);
include(org.my.project.AnotherJSClass);
include(org.some.other.project.YetAnotherJSClass);

org.my.namespace.MyClass = Class.create({
    ...
});

The include functions called above are parsed out by the JavaScript compiler - each included class is located in the filesystem or on the classpath and the contents of the included file compiled in the same way, then inserted into the output document.

The JavaScript compiler takes a JavaScript file, resolves files included using the include statements and writes the result into an output stream.

// The input file is the page file.
URL inputFile = new URL("file:///path/to/file.js");

// This is the package that holds the page files for my application
String pagePackage = "myapp.page";

// This is where the compiled JavaScript will get written to
OutputStream outputStream = new FileOutputStream(File.createTempFile("foo", "js"));

// These are any libraries that my application needs
String[] libraries = new String[] {
    "src/main/javascript/jquery.js",
    "src/main/javascript/other-library.js"
};

// This is where the compiler should search for source files in addition to the classpath
String[] sourceRoots = new String[] {
    "src/main/javascript"
};

Compiler compiler = new JavaScriptCompiler(libraries);
compiler.compile(inputFile, pagePackage, outputStream, sourceRoots);