How to use

format

method

in

org.apache.hadoop.util.StringUtils

/**
 * Format a percentage for presentation to the user.
 * @param fraction the percentage as a fraction, e.g. 0.1 = 10%
 * @param decimalPlaces the number of decimal places
 * @return a string representation of the percentage
 */
public static String formatPercent(double fraction, int decimalPlaces) {
 return format("%." + decimalPlaces + "f%%", fraction*100);
}

/** @deprecated use StringUtils.format("%.2f", d). */
@Deprecated
public static String limitDecimalTo2(double d) {
 return format("%.2f", d);
}

/**
 * Given an array of bytes it will convert the bytes to a hex string
 * representation of the bytes
 * @param bytes
 * @param start start index, inclusively
 * @param end end index, exclusively
 * @return hex string representation of the byte array
 */
public static String byteToHexString(byte[] bytes, int start, int end) {
 if (bytes == null) {
  throw new IllegalArgumentException("bytes == null");
 }
 StringBuilder s = new StringBuilder(); 
 for(int i = start; i < end; i++) {
  s.append(format("%02x", bytes[i]));
 }
 return s.toString();
}

} else {
 final String  format = "%." + decimalPlaces + "f";
 String s = format(format, n/(double)prefix.value);
  s = format(format, n/(double)prefix.value);

String cmd = StringUtils.format(
    "--connect \"%s\" --driver %s --username %s --password %s --query \"%s AND \\$CONDITIONS\" "
        + "--target-dir %s/%s --split-by %s --boundary-query \"%s\" --null-string '' "

innerInfo.put("min", StringUtils.format("%.2f%%", min));
innerInfo.put("median", StringUtils.format("%.2f%%", median));
innerInfo.put("max", StringUtils.format("%.2f%%", max));
innerInfo.put("stdDev", StringUtils.format("%.2f%%", dev));
info.put("nodeUsage", innerInfo);

/**
 * Format a percentage for presentation to the user.
 * @param fraction the percentage as a fraction, e.g. 0.1 = 10%
 * @param decimalPlaces the number of decimal places
 * @return a string representation of the percentage
 */
public static String formatPercent(double fraction, int decimalPlaces) {
 return format("%." + decimalPlaces + "f%%", fraction*100);
}

/**
 * Format a percentage for presentation to the user.
 * @param fraction the percentage as a fraction, e.g. 0.1 = 10%
 * @param decimalPlaces the number of decimal places
 * @return a string representation of the percentage
 */
public static String formatPercent(double fraction, int decimalPlaces) {
 return format("%." + decimalPlaces + "f%%", fraction*100);
}

 static String left(float f) {
  return StringUtils.format("left:%.1f%%", f * 100);
 }
}

 static String left(float f) {
  return StringUtils.format("left:%.1f%%", f * 100);
 }
}

/**
 * Format a percentage for presentation to the user.
 * @param fraction the percentage as a fraction, e.g. 0.1 = 10%
 * @param decimalPlaces the number of decimal places
 * @return a string representation of the percentage
 */
public static String formatPercent(double fraction, int decimalPlaces) {
 return format("%." + decimalPlaces + "f%%", fraction * 100);
}

/** Convert percentage to a string. */
public static String percent2String(double percentage) {
 return StringUtils.format("%.2f%%", percentage);
}

/**
 * Format a percentage for presentation to the user.
 * @param fraction the percentage as a fraction, e.g. 0.1 = 10%
 * @param decimalPlaces the number of decimal places
 * @return a string representation of the percentage
 */
public static String formatPercent(double fraction, int decimalPlaces) {
 return format("%." + decimalPlaces + "f%%", fraction*100);
}

static String width(float f) {
 return StringUtils.format("width:%.1f%%", f * 100);
}

 static String left(float f) {
  return StringUtils.format("left:%.1f%%", f * 100);
 }
}

/** @deprecated use StringUtils.format("%.2f", d). */
@Deprecated
public static String limitDecimalTo2(double d) {
 return format("%.2f", d);
}

/** @deprecated use StringUtils.format("%.2f", d). */
@Deprecated
public static String limitDecimalTo2(double d) {
 return format("%.2f", d);
}

/** @deprecated use StringUtils.format("%.2f", d). */
@Deprecated
public static String limitDecimalTo2(double d) {
 return format("%.2f", d);
}

/** @deprecated use StringUtils.format("%.2f", d). */
@Deprecated
public static String limitDecimalTo2(double d) {
 return format("%.2f", d);
}

public static final String createNewLogFile(FileSystem fs, String basePath, String partitionPath, String commitTime,
  String fileID, Optional<Integer> version) throws IOException {
 String folderPath = basePath + "/" + partitionPath + "/";
 boolean makeDir = fs.mkdirs(new Path(folderPath));
 if (!makeDir) {
  throw new IOException("cannot create directory for path " + folderPath);
 }
 boolean createFile = fs.createNewFile(new Path(
   folderPath + FSUtils.makeLogFileName(fileID, ".log", commitTime, version.orElse(DEFAULT_TASK_PARTITIONID))));
 if (!createFile) {
  throw new IOException(
    StringUtils.format("cannot create data file for commit %s and fileId %s", commitTime, fileID));
 }
 return fileID;
}