ParseUtil (oshi-core 3.4.2 API)

java.lang.Object
- oshi.util.ParseUtil

```
public class ParseUtil
extends Object
```
String parsing utility.

Author:

alessio.fachechi[at]gmail[dot]com

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static float`	`byteArrayToFloat(byte[] bytes, int size, int fpBits)` Convert a byte array to its floating point representation.
`static long`	`byteArrayToLong(byte[] bytes, int size)` Convert a byte array to its integer representation.
`static long`	`cimDateTimeToMillis(String cimDate)` Parses a CIM_DateTime format (from WMI) to milliseconds since the epoch.
`static int`	`getFirstIntValue(String line)` Parses a string such as "10.12.2" or "key = 1 (0x1) (int)" to find the integer value of the first set of one or more consecutive digits
`static int`	`getNthIntValue(String line, int n)` Parses a string such as "10.12.2" or "key = 1 (0x1) (int)" to find the integer value of the nth set of one or more consecutive digits
`static String`	`getSingleQuoteStringValue(String line)` Parses a string key = 'value' (string)
`static byte[]`	`hexStringToByteArray(String digits)` Parse a string of hexadecimal digits into a byte array
`static String`	`hexStringToString(String hexString)` Parses a string of hex digits to a string where each pair of hex digits represents an ASCII character
`static byte[]`	`longToByteArray(long value, int valueSize, int length)` Convert a long value to a byte array using Big Endian, truncating or padding with zeros (if necessary) so the array has the specified length.
`static long`	`parseDHMSOrDefault(String s, long defaultLong)` Attempts to parse a string of the form [DD-[hh:]]mm:ss[.ddd] to a number of milliseconds.
`static double`	`parseDoubleOrDefault(String s, double defaultDouble)` Attempts to parse a string to a double.
`static long`	`parseHertz(String hertz)` Parse hertz from a string, eg.
`static int`	`parseIntOrDefault(String s, int defaultInt)` Attempts to parse a string to an int.
`static int`	`parseLastInt(String s, int i)` Parse the last element of a space-delimited string to a value
`static String`	`parseLastString(String s)` Parse the last element of a space-delimited string to a string
`static long`	`parseLongOrDefault(String s, long defaultLong)` Attempts to parse a string to a long.
`static String`	`parseUuidOrDefault(String s, String defaultStr)` Attempts to parse a UUID.
`static byte[]`	`stringToByteArray(String text, int length)` Parse a human readable string into a byte array, truncating or padding with zeros (if necessary) so the array has the specified length.
`static long`	`strToLong(String str, int size)` Convert a string to an integer representation.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - parseHertz
```
public static long parseHertz(String hertz)
```
    Parse hertz from a string, eg. "2.00MHz" in 2000000L.
    
    Parameters:
    
    hertz - Hertz size.
    
    Returns:
    
    Long Hertz value or -1 if not parsable.
  - parseLastInt
```
public static int parseLastInt(String s,
                               int i)
```
    Parse the last element of a space-delimited string to a value
    
    Parameters:
    
    s - The string to parse
    
    i - Default integer if not parsable
    
    Returns:
    
    value or the given default if not parsable
  - parseLastString
```
public static String parseLastString(String s)
```
    Parse the last element of a space-delimited string to a string
    
    Parameters:
    
    s - The string to parse
    
    Returns:
    
    last space-delimited element
  - hexStringToByteArray
```
public static byte[] hexStringToByteArray(String digits)
```
    Parse a string of hexadecimal digits into a byte array
    
    Parameters:
    
    digits - The string to be parsed
    
    Returns:
    
    a byte array with each pair of characters converted to a byte, or empty array if the string is not valid hex
  - stringToByteArray
```
public static byte[] stringToByteArray(String text,
                                       int length)
```
    Parse a human readable string into a byte array, truncating or padding with zeros (if necessary) so the array has the specified length.
    
    Parameters:
    
    text - The string to be parsed
    
    length - Length of the returned array.
    
    Returns:
    
    A byte array of specified length, with each of the first length characters converted to a byte. If length is longer than the provided string length, will be filled with zeroes.
  - longToByteArray
```
public static byte[] longToByteArray(long value,
                                     int valueSize,
                                     int length)
```
    Convert a long value to a byte array using Big Endian, truncating or padding with zeros (if necessary) so the array has the specified length.
    
    Parameters:
    
    value - The value to be converted
    
    valueSize - Number of bytes representing the value
    
    length - Number of bytes to return
    
    Returns:
    
    A byte array of specified length representing the long in the first valueSize bytes
  - strToLong
```
public static long strToLong(String str,
                             int size)
```
    Convert a string to an integer representation.
    
    Parameters:
    
    str - A human readable string
    
    size - Number of characters to convert to the long. May not exceed 8.
    
    Returns:
    
    An integer representing the string where each character is treated as a byte
  - byteArrayToLong
```
public static long byteArrayToLong(byte[] bytes,
                                   int size)
```
    Convert a byte array to its integer representation.
    
    Parameters:
    
    bytes - An array of bytes no smaller than the size to be converted
    
    size - Number of bytes to convert to the long. May not exceed 8.
    
    Returns:
    
    An integer representing the byte array as a 64-bit number
  - byteArrayToFloat
```
public static float byteArrayToFloat(byte[] bytes,
                                     int size,
                                     int fpBits)
```
    Convert a byte array to its floating point representation.
    
    Parameters:
    
    bytes - An array of bytes no smaller than the size to be converted
    
    size - Number of bytes to convert to the float. May not exceed 8.
    
    fpBits - Number of bits representing the decimal
    
    Returns:
    
    A float; the integer portion representing the byte array as an integer shifted by the bits specified in fpBits; with the remaining bits used as a decimal
  - cimDateTimeToMillis
```
public static long cimDateTimeToMillis(String cimDate)
```
    Parses a CIM_DateTime format (from WMI) to milliseconds since the epoch. See https://msdn.microsoft.com/en-us/library/aa387237(v=vs.85).aspx
    
    Parameters:
    
    cimDate - A string containing the CIM_DateTime
    
    Returns:
    
    The corresponding DateTime as a number of milliseconds since the epoch
  - hexStringToString
```
public static String hexStringToString(String hexString)
```
    Parses a string of hex digits to a string where each pair of hex digits represents an ASCII character
    
    Parameters:
    
    hexString - A sequence of hex digits
    
    Returns:
    
    The corresponding string if valid hex; otherwise the original hexString
  - parseIntOrDefault
```
public static int parseIntOrDefault(String s,
                                    int defaultInt)
```
    Attempts to parse a string to an int. If it fails, returns the default
    
    Parameters:
    
    s - The string to parse
    
    defaultInt - The value to return if parsing fails
    
    Returns:
    
    The parsed int, or the default if parsing failed
  - parseLongOrDefault
```
public static long parseLongOrDefault(String s,
                                      long defaultLong)
```
    Attempts to parse a string to a long. If it fails, returns the default
    
    Parameters:
    
    s - The string to parse
    
    defaultLong - The value to return if parsing fails
    
    Returns:
    
    The parsed long, or the default if parsing failed
  - parseDoubleOrDefault
```
public static double parseDoubleOrDefault(String s,
                                          double defaultDouble)
```
    Attempts to parse a string to a double. If it fails, returns the default
    
    Parameters:
    
    s - The string to parse
    
    defaultDouble - The value to return if parsing fails
    
    Returns:
    
    The parsed double, or the default if parsing failed
  - parseDHMSOrDefault
```
public static long parseDHMSOrDefault(String s,
                                      long defaultLong)
```
    Attempts to parse a string of the form [DD-[hh:]]mm:ss[.ddd] to a number of milliseconds. If it fails, returns the default.
    
    Parameters:
    
    s - The string to parse
    
    defaultLong - The value to return if parsing fails
    
    Returns:
    
    The parsed number of seconds, or the default if parsing fails
  - parseUuidOrDefault
```
public static String parseUuidOrDefault(String s,
                                        String defaultStr)
```
    Attempts to parse a UUID. If it fails, returns the default.
    
    Parameters:
    
    s - The string to parse
    
    defaultStr - The value to return if parsing fails
    
    Returns:
    
    The parsed UUID, or the default if parsing fails
  - getSingleQuoteStringValue
```
public static String getSingleQuoteStringValue(String line)
```
    Parses a string key = 'value' (string)
    
    Parameters:
    
    line - The entire string
    
    Returns:
    
    the value contained between single tick marks
  - getFirstIntValue
```
public static int getFirstIntValue(String line)
```
    Parses a string such as "10.12.2" or "key = 1 (0x1) (int)" to find the integer value of the first set of one or more consecutive digits
    
    Parameters:
    
    line - The entire string
    
    Returns:
    
    the value of first integer if any; 0 otherwise
  - getNthIntValue
```
public static int getNthIntValue(String line,
                                 int n)
```
    Parses a string such as "10.12.2" or "key = 1 (0x1) (int)" to find the integer value of the nth set of one or more consecutive digits
    
    Parameters:
    
    line - The entire string
    
    n - Which set of integers to return
    
    Returns:
    
    the value of nth integer if any; 0 otherwise

Class ParseUtil

Method Summary

Methods inherited from class java.lang.Object

Method Detail

parseHertz

parseLastInt

parseLastString

hexStringToByteArray

stringToByteArray

longToByteArray

strToLong

byteArrayToLong

byteArrayToFloat

cimDateTimeToMillis

hexStringToString

parseIntOrDefault

parseLongOrDefault

parseDoubleOrDefault

parseDHMSOrDefault

parseUuidOrDefault

getSingleQuoteStringValue

getFirstIntValue

getNthIntValue