Java - Clojure Interop

java-clojure-interop.md

This Java class will act as a wrapper class for a clojure project. The clojure jar should be available in the namespace. This require clojure version >1.6

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public class JavaSide {
    private final IFn clojureApiHandlerFn;
    
    public JavaSide() {
        new clojure.lang.RT();
        
        /* Import clojure core. */
        final IFn require = Clojure.var("clojure.core", "require");
        
        // Invoke the clojure namespace
        require.invoke(Clojure.read("clojure.namespace"));
        
        // Clojure method handler
        this.clojureApiHandlerFn = Clojure.var("clojure.namespace", "clojure-method");
    }
    
    private Object invokeClojureFunction(IFn fn, Parameter param) {
           return fn.invoke(param);
    }
    
    public Object clojureMethod(Parameter param) {
        return invokeClojureFunction(this.clojureApiHandlerFn, param);
    }
}
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Example

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JavaSide wrapper = new JavaSide();
Object response = wrapper.clojureMethod(param);
...