/*
 * Copyright (c) 2017 Data and Web Science Group, University of Mannheim, Germany (http://dws.informatik.uni-mannheim.de/)
 *
 * 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 de.uni_mannheim.informatik.dws.winter.utils;

import java.util.Collection;

/**
 * 
 * Collection of utility functions for strings.
 * 
 * @author Oliver Lehmberg (oli@dwslab.de)
 *
 */
public class StringUtils {

	public static String join(Collection<?> values, String delimiter)
	{
		StringBuilder sb = new StringBuilder();
		
		boolean first=true;
		for(Object value : values)
		{
			if(!first)
				sb.append(delimiter);
			
			if(value!=null) {
				sb.append(value.toString());
			} else {
				sb.append("null");
			}
			
			first = false;
		}
		
		return sb.toString();
	}
	
	public static String join(Object[] values, String delimiter)
	{
		StringBuilder sb = new StringBuilder();
		
		boolean first=true;
		for(Object value : values)
		{
			if(!first)
				sb.append(delimiter);
			
			if(value!=null) {
				sb.append(value.toString());
			} else {
				sb.append("null");
			}
			
			first = false;
		}
		
		return sb.toString();
	}
	
	/**
	 * Checks if the string passed as first parameter contains any of the other strings passed as second parameter
	 * @param value
	 * @param testValues
	 * @return true if value contains any of the strings in testValues
	 */
	public static boolean containsAny(String value, Collection<String> testValues)
	{
		if(value==null)
			return false;
		
		for (String s : testValues)
			if (value.contains(s))
				return true;
		return false;
	}
}
