InstantFactoryBinder.java

package pl.allegro.tech.hermes.common.di;

import org.glassfish.hk2.api.DynamicConfiguration;
import org.glassfish.hk2.api.Factory;
import org.glassfish.hk2.utilities.Binder;
import org.glassfish.hk2.utilities.binding.ServiceBindingBuilder;
import org.glassfish.jersey.internal.inject.Injections;

@SuppressWarnings("unchecked")
public class InstantFactoryBinder {
    ServiceBindingBuilder builder;

    InstantFactoryBinder(Factory<?> factory) {
        this.builder = Injections.newFactoryBinder(factory);
    }

    public static InstantFactoryBinder bindFactory(Factory<?> factory) {
        return new InstantFactoryBinder(factory);
    }

    public InstantFactoryBinder to(Class<?> clazz) {
        builder.to(clazz);
        return this;
    }

    public InstantFactoryBinder in(Class<?> scope) {
        builder.in(scope);
        return this;
    }

    public Binder build() {
        return new Binder() {
            @Override
            public void bind(DynamicConfiguration config) {
                Injections.addBinding(builder, config);
            }
        };
    }
}