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package org.codehaus.plexus.component;

import org.apache.xbean.recipe.RecipeHelper;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import com.google.common.collect.Multimap;

@SuppressWarnings({"unchecked", "UnusedDeclaration"})
public final class CastUtils {
    private CastUtils() {
        //utility class, never constructed
    }

    public static  Map cast(Map p) {
        return (Map) p;
    }

    public static  Map cast(Map p, Class t, Class u) {
        return (Map) p;
    }

    public static  Multimap cast(Multimap p) {
        return (Multimap) p;
    }

    public static  Multimap cast(Multimap p, Class t, Class u) {
        return (Multimap) p;
    }

    public static  Collection cast(Collection p) {
        return (Collection) p;
    }

    public static  Collection cast(Collection p, Class cls) {
        return (Collection) p;
    }

    public static  List cast(List p) {
        return (List) p;
    }

    public static  List cast(List p, Class cls) {
        return (List) p;
    }

    public static  Iterator cast(Iterator p) {
        return (Iterator) p;
    }

    public static  Iterator cast(Iterator p, Class cls) {
        return (Iterator) p;
    }

    public static  Set cast(Set p) {
        return (Set) p;
    }

    public static  Set cast(Set p, Class cls) {
        return (Set) p;
    }

    public static  Map.Entry cast(Map.Entry p) {
        return (Map.Entry) p;
    }

    public static  Map.Entry cast(Map.Entry p, Class pc, Class uc) {
        return (Map.Entry) p;
    }

    // todo remove when recipe helper accecpts nulls
    public static boolean isAssignableFrom(Class expected, Class actual) {
        return actual != null && RecipeHelper.isAssignableFrom( expected, actual );
    }
}