Java String Shorten shortenContent(String s, int maxLength)

Description

shorten Content

License

Open Source License

Declaration

public static String shortenContent(String s, int maxLength) 

Method Source Code

//package com.java2s;

public class Main {
    /**/*from ww w . j  a  v a  2  s . co  m*/
      * Shorten the full content to create short content, which has a special
      * character occurs as much as maxOccurrence or has as much as masChar
      * characters.
      * 
      * @param fullContent
      *            the full content
      * @param ch
      *            the pattern character
      * @param maxOccurrence
      *            the max occurrence
      * @param maxChar
      *            the max char
      * @return the shorten string
      */
    public static String shortenContent(final String fullContent, final String ch, final int maxOccurrence,
            final int maxChar) {
        int occur = 0;
        int begin = 0;
        int end = fullContent.indexOf(ch);
        StringBuilder result;
        if (end == -1) {
            if (fullContent.length() < maxChar) {
                result = new StringBuilder(fullContent);
            } else {
                result = new StringBuilder(fullContent.substring(begin, maxChar - 3));
                result = result.append("...");
            }
        } else {
            result = new StringBuilder();
            while (end != -1 && occur <= maxOccurrence && result.length() < (maxChar - 3)) {
                result.append(fullContent.substring(begin, end));
                begin = end;
                end = fullContent.indexOf(ch, end + 1);
                occur++;
            }
            if (result.length() - 3 >= maxChar) {
                result.substring(0, maxChar - 3);
                result = result.append("...");
            } else if (occur <= maxOccurrence) {
                result.append(fullContent.substring(begin, fullContent.length()));
            } else {
                result = result.append("...");
            }
        }
        return result.toString();
    }

    public static String shortenContent(String s, int maxLength) {
        if (s.length() > maxLength) {
            return s.substring(0, maxLength - 3) + "...";
        } else {
            return s;
        }
    }

    public static String toString(Object obj) throws Exception {
        if (obj == null) {
            return "";
        } else {
            return obj.toString();
        }
    }
}

Related

1. shortenClassName(Class klass)
2. shortenClassName(Class clazz, int maxLength)
3. shortenClassName(String cname)
4. shortenClassName(String str)
5. shortenComponentLoggerName(String loggerName)
6. shortenCount(final long count)
7. shortenCount(int count)
8. shortenDbName(String dbName, int desiredLength)
9. shortenDerivedIdentifier(final String derivdedIdentifier)