CastUtils.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.cxf.helpers;

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

@SuppressWarnings("unchecked")
public final class CastUtils {

    private CastUtils() {
        //utility class, never constructed
    }

    public static <T, U> Map<T, U> cast(Map<?, ?> p) {
        return (Map<T, U>)p;
    }
    public static <T, U> Map<T, U> cast(Map<?, ?> p, Class<T> t, Class<U> u) {
        return (Map<T, U>)p;
    }

    public static <T, U> Dictionary<T, U> cast(Dictionary<?, ?> p) {
        return (Dictionary<T, U>)p;
    }
    public static <T, U> Dictionary<T, U> cast(Dictionary<?, ?> p, Class<T> t, Class<U> u) {
        return (Dictionary<T, U>)p;
    }

    public static <T> Collection<T> cast(Collection<?> p) {
        return (Collection<T>)p;
    }
    public static <T> Collection<T> cast(Collection<?> p, Class<T> cls) {
        return (Collection<T>)p;
    }
    public static <T> List<T> cast(List<?> p) {
        return (List<T>)p;
    }

    public static <T> List<T> cast(List<?> p, Class<T> cls) {
        return (List<T>)p;
    }

    public static <T> Iterator<T> cast(Iterator<?> p) {
        return (Iterator<T>)p;
    }

    public static <T> Iterator<T> cast(Iterator<?> p, Class<T> cls) {
        return (Iterator<T>)p;
    }

    public static <T> Enumeration<T> cast(Enumeration<?> p) {
        return (Enumeration<T>)p;
    }

    public static <T> Enumeration<T> cast(Enumeration<?> p, Class<T> cls) {
        return (Enumeration<T>)p;
    }

    public static <T> Set<T> cast(Set<?> p) {
        return (Set<T>)p;
    }
    public static <T> Set<T> cast(Set<?> p, Class<T> cls) {
        return (Set<T>)p;
    }

    public static <T, U> Map.Entry<T, U> cast(Map.Entry<?, ?> p) {
        return (Map.Entry<T, U>)p;
    }
    public static <T, U> Map.Entry<T, U> cast(Map.Entry<?, ?> p, Class<T> pc, Class<U> uc) {
        return (Map.Entry<T, U>)p;
    }


}