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package org.weakref.jmx.guice;

import org.weakref.jmx.internal.guava.reflect.TypeParameter;
import org.weakref.jmx.internal.guava.reflect.TypeToken;
import com.google.inject.Key;

import java.lang.reflect.Type;
import java.util.Set;

class SetMapping
{
    private final ObjectNameFunction objectNameFunction;
    private final Class clazz;

    SetMapping(Class key, ObjectNameFunction objectNameFunction)
    {
        this.clazz = key;
        this.objectNameFunction = objectNameFunction;
    }

    public ObjectNameFunction getObjectNameFunction()
    {
        return objectNameFunction;
    }

    public Key> getKey()
    {
        return (Key>) Key.get(setOf(clazz));
    }

    private static  Type setOf(Class clazz)
    {
        return new TypeToken>() {}.where(new TypeParameter() {}, TypeToken.of(clazz)).getType();
    }

}