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javaclojureclasspathembedded-language

How do I dynamically load a Clojure script from outside of my classpath from java?


I wish to enable user defined Clojure scripts to interact with my Java App. The problem is, I don't know in advance where the Clojure scripts will be located, so I can't include them in my classpath when running the app.

How do I dynamically load a Clojure script from outside of my classpath?

I've tried the simple example:

RT.loadResourceScript("test.clj");
Var foo = RT.var("user", "foo");
Object result = foo.invoke("Hi", "there");
System.out.println(result);

with a test.clj that looks like:

(ns user)

(defn foo [a b]
    (str a " " b))

But no luck.

I think it has something to do with RT.makeClassLoader() or RT.baseLoader() and using the returned loader to load the clojure file, but I cannot seem to make it work. (I keep getting ClassNotFound) I could probably muddle through the javadoc for the clojure.lang.RT, but I simply could not find them.


Solution

  • Try clojure.lang.Compiler.loadFile(String file)