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package com.sun.grizzly.jruby.rack;

import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.runtime.callback.Callback;
import org.jruby.runtime.Block;
import org.jruby.runtime.Arity;
import org.jruby.Ruby;
import org.jruby.RubyIO;
import org.jruby.RubyInstanceConfig;
import org.jruby.util.ClassCache;
import org.jruby.exceptions.RaiseException;
import org.jruby.javasupport.JavaEmbedUtils;

import java.io.IOException;
import java.io.File;
import java.io.Writer;
import java.io.FileWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

import com.sun.grizzly.tcp.http11.GrizzlyRequest;
import com.sun.grizzly.jruby.RubyAdapter;
import com.sun.grizzly.http.SelectorThread;

/**
 * @author Vivek Pandey
 */
public class DefaultRackApplication implements RackApplication {
    private IRubyObject application;
    private Ruby runtime;
    private Logger logger;

    public DefaultRackApplication(IRubyObject application, Logger theLog) {
        this.application = application;
        this.runtime = application.getRuntime();
        this.logger = theLog;
        
    }

    public RackResponse call(final GrizzlyRequest env) {
        Ruby runtime = application.getRuntime();
        IRubyObject grizzlyReq = JavaEmbedUtils.javaToRuby(runtime, env);
        grizzlyReq.getMetaClass().defineMethod("to_io", new Callback() {
            public IRubyObject execute(IRubyObject recv, IRubyObject[] args, Block block) {
                try {
                    return new RubyIO(recv.getRuntime(), env.getInputStream());
                } catch (IOException ex) {
                    throw RaiseException.createNativeRaiseException(recv.getRuntime(), ex);
                }
            }
            public Arity getArity() {
                return Arity.NO_ARGUMENTS;
            }
        });
        IRubyObject response = application.callMethod(runtime.getCurrentContext(),
                "call", new IRubyObject[] { grizzlyReq });
        Object obj = JavaEmbedUtils.rubyToJava(runtime, response, RackResponse.class);
        return (RackResponse) obj;
        //return (RackResponse) JavaEmbedUtils.rubyToJava(runtime, response, RackResponse.class);
    }

    public void destroy() {
        JavaEmbedUtils.terminate(runtime);
    }

    public Ruby getRuntime() {
        return runtime;
    }
}