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There is a newer version: 3.2.4

package com.taobao.diamond.utils;

import static com.taobao.diamond.common.Constants.WORD_SEPARATOR;

import com.taobao.diamond.common.Constants;


public class ContentUtils {

    public static void verifyIncrementPubContent(String content) {

        if (content == null || content.length() == 0) {
            throw new IllegalArgumentException("");
        }
        for (int i = 0; i < content.length(); i++) {
            char c = content.charAt(i);
            if (c == '\r' || c == '\n') {
                throw new IllegalArgumentException("");
            }
            if (c == Constants.WORD_SEPARATOR.charAt(0)) {
                throw new IllegalArgumentException("");
            }
        }
    }


    public static String getContentIdentity(String content) {
        int index = content.indexOf(WORD_SEPARATOR);
        if (index == -1) {
            throw new IllegalArgumentException("");
        }
        return content.substring(0, index);
    }


    public static String getContent(String content) {
        int index = content.indexOf(WORD_SEPARATOR);
        if (index == -1) {
            throw new IllegalArgumentException("");
        }
        return content.substring(index + 1);
    }


    public static String truncateContent(String content) {
        if (content == null) {
            return "";
        }
        else if (content.length() <= 100) {
            return content;
        }
        else {
			return content.substring(0, 100) + "...";
        }
    }
}