StringUtils.java

/*
 * Copyright 2012 LinkedIn Corp.
 * 
 * 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 azkaban.utils;

import java.util.Collection;
import java.util.List;

public class StringUtils {
	public static final char SINGLE_QUOTE = '\'';
	public static final char DOUBLE_QUOTE = '\"';

	public static String shellQuote(String s, char quoteCh) {
		StringBuffer buf = new StringBuffer(s.length() + 2);

		buf.append(quoteCh);
		for (int i = 0; i < s.length(); i++) {
			final char ch = s.charAt(i);
			if (ch == quoteCh) {
				buf.append('\\');
			}
			buf.append(ch);
		}
		buf.append(quoteCh);

		return buf.toString();
	}
	
	@Deprecated
	public static String join(List<String> list, String delimiter) {
		StringBuffer buffer = new StringBuffer();
		for (String str: list) {
			buffer.append(str);
			buffer.append(delimiter);
		}
		
		return buffer.toString();
	}
	
	/**
	 * Use this when you don't want to include Apache Common's string for
	 * plugins.
	 * 
	 * @param list
	 * @param delimiter
	 * @return
	 */
	public static String join(Collection<String> list, String delimiter) {
		StringBuffer buffer = new StringBuffer();
		for (String str: list) {
			buffer.append(str);
			buffer.append(delimiter);
		}
		
		return buffer.toString();
	}

}