package org.sonatype.plexus.template;

import java.net.URLClassLoader;

import org.sonatype.guice.bean.reflect.ClassSpace;
import org.sonatype.guice.bean.reflect.URLClassSpace;
import org.sonatype.guice.bean.scanners.QualifiedScannerModule;

import com.google.inject.Injector;
import com.google.inject.InjectorBuilder;
import com.google.inject.Stage;

public class TychoInjector {

    private Injector injector;

    public TychoInjector() {
        URLClassLoader loader = (URLClassLoader) getClass().getClassLoader();
        final ClassSpace space = new URLClassSpace(loader);
        final InjectorBuilder injectorBuilder = new InjectorBuilder();
        injectorBuilder.stage(Stage.PRODUCTION); // TODO: hack to get eager singletons
        injectorBuilder.addModules(new QualifiedScannerModule(space));
        injector = injectorBuilder.build();
    }

    public <T> T lookup(Class<T> key)  {
        return injector.getInstance(key);
    }
}