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/**
 * Copyright (C) 2012 Ness Computing, Inc.
 *
 * Licensed 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 com.nesscomputing.service.discovery.client.internal;

import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Collection;

/** This file has been copied from the spymemcached source tree.
 * 
 */

/**
 * Utilities for processing key values.
 */
public class KeyUtil {

	/**
	 * Get the bytes for a key.
	 *
	 * @param k the key
	 * @return the bytes
	 */
	public static byte[] getKeyBytes(String k) {
		try {
			return k.getBytes("UTF-8");
		} catch (UnsupportedEncodingException e) {
			throw new RuntimeException(e);
		}
	}

	/**
	 * Get the keys in byte form for all of the string keys.
	 *
	 * @param keys a collection of keys
	 * @return return a collection of the byte representations of keys
	 */
	public static Collection getKeyBytes(Collection keys) {
		Collection rv=new ArrayList(keys.size());
		for(String s : keys) {
			rv.add(getKeyBytes(s));
		}
		return rv;
	}
}