Java List Create createDelimitedString(String rawListAsString)

Description

create Delimited String

License

Open Source License

Declaration

public static String createDelimitedString(String rawListAsString) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.List;
import java.util.Arrays;

public class Main {
    private static final String DEFAULT_DELIMITER = "    ";
    private static final String REGEX_TO_SPLIT = "[\\s]+";

    public static String createDelimitedString(String rawListAsString) {
        return createDelimitedString(rawListAsString, null);
    }/*w ww .j a va  2 s  . c  om*/

    public static String createDelimitedString(String rawListAsString, String delimiter) {
        if (rawListAsString == null)
            return null;

        String[] argList = rawListAsString.trim().split(REGEX_TO_SPLIT);
        List<String> list = Arrays.asList(argList);

        return createDelimitedString(list, delimiter);
    }

    public static String createDelimitedString(List<String> list) {
        return createDelimitedString(list, null);
    }

    public static String createDelimitedString(List<String> list, String delimiter) {
        if (delimiter == null)
            delimiter = DEFAULT_DELIMITER;
        if (list == null)
            return null;

        /* todo: maybe replace with StringUtils later */
        StringBuffer buffer = new StringBuffer();
        for (String item : list) {
            buffer.append(item.trim());
            if (list.indexOf(item) < list.size() - 1) {
                buffer.append(delimiter);
            }
        }
        return buffer.toString().trim();
    }
}

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