Java Byte Array to String by Charset getBytesByCharset(String str, Charset charset)

Description

get Bytes By Charset

License

Open Source License

Declaration

public static byte[] getBytesByCharset(String str, Charset charset) 

Method Source Code

//package com.java2s;

import java.nio.charset.Charset;

public class Main {
    public static byte[] getBytesByCharset(String str, Charset charset) {
        if (isNotBlank(str)) {
            return str.getBytes(charset);
        }//from  ww  w  .  j  a v a  2 s .c o  m
        return null;
    }

    /**
     * <code>
     *  StringUtils.isNotBlank("") return false;
     *  StringUtils.isNotBlank(" ") return false;
     *  StringUtils.isNotBlank(null) return false;
     *  StringUtils.isNotBlank("abc") return true;
     * </code>
     * @param str
     * @return
     */
    public static boolean isNotBlank(String str) {
        return !isBlank(str);
    }

    /**
     * <code>
     *  StringUtils.isBlank("") return true;
     *  StringUtils.isBlank(" ") return true;
     *  StringUtils.isBlank(null) return true;
     *  StringUtils.isBlank("abc") return false;
     * </code>
     * @param str
     * @return
     */
    public static boolean isBlank(String str) {
        return trimToNull(str) == null;
    }

    /**
     * <code>
     *  StringUtils.trimToNull("") return null;
     *  StringUtils.trimToNull("  ") return null;
     *  StringUtils.trimToNull(null) return null;
     *  StringUtils.trimToNull(" abc ") return "abc";
     * </code>
     * @param str
     * @return
     */
    public static String trimToNull(String str) {
        if (str == null)
            return null;
        str = str.trim();
        if ("".equals(str))
            return null;
        return str;
    }
}

Related

1. encodingIsCorrect(byte[] bytes, String charset)
2. getAverageBytesPerCharacter(Charset charset)
3. getBytes(final char[] data, String charset)
4. getBytes(final String string, final Charset charset)
5. getBytes(String string, Charset charset)
6. getBytesUnchecked(String string, String charsetName)
7. getBytesUnchecked(String string, String charsetName)
8. getChars(byte[] data, String charset)
9. getContentAsString(byte[] content, Charset charset)