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## org.apache.jorphan.util
Class JOrphanUtils

    java.lang.Object
      org.apache.jorphan.util.JOrphanUtils

    public final class JOrphanUtils

extends Object

This class contains frequently-used static utility methods.

Method Summary
`static byte[]` | `baToHexBytes(byte[] ba)` Convert binary byte array to hex string.
`static String` | `baToHexString(byte[] ba)` Convert binary byte array to hex string.
`static String` | `booleanToSTRING(boolean value)` Convert a boolean to its upper case string representation.
`static void` | `closeQuietly(InputStream is)` close a stream with no error thrown
`static void` | `closeQuietly(OutputStream os)` close a stream with no error thrown
`static void` | `closeQuietly(Reader rd)` close a Reader with no error thrown
`static void` | `closeQuietly(ServerSocket sock)` close a Socket with no error thrown
`static void` | `closeQuietly(Socket sock)` close a Socket with no error thrown
`static void` | `closeQuietly(Writer wr)` close a Writer with no error thrown
`static byte[]` | `getByteArraySlice(byte[] array, int begin, int end)` Returns a slice of a byte array.
`static boolean` | `isXML(byte[] target)` Detects if some content starts with the standard XML prefix.
`static StringBuilder` | `leftAlign(StringBuilder in, int len)` Left aligns some text in a StringBuilder N.B. modifies the input buffer
`static String` | `replaceAllChars(String source, char search, String replace)` Version of String.replaceAll() for JDK1.3 See below for another version which replaces strings rather than chars
`static String` | `replaceFirst(String source, String search, String replace)` Simple-minded String.replace() for JDK1.3 Should probably be recoded...
`static StringBuilder` | `rightAlign(StringBuilder in, int len)` Right aligns some text in a StringBuilder N.B. modifies the input buffer
`static String[]` | `split(String splittee, String splitChar)`
`static String[]` | `split(String splittee, String splitChar, boolean truncate)` This is _almost_ equivalent to the String.split method in JDK 1.4.
`static String[]` | `split(String splittee, String delims, String def)` Takes a String and a tokenizer character string, and returns a new array of strings of the string split by the tokenizer character(s).
`static boolean` | `startsWith(byte[] target, byte[] search, int offset)` Check if a byte array starts with the given byte array.
`static String` | `substitute(String input, String pattern, String sub)` Replace all patterns in a String
`static String` | `trim(String input, String delims)` Trim a string by the tokens provided.

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

Method Detail

### split

    public static String[] split(String splittee,
                                 String splitChar,
                                 boolean truncate)

  This is _almost_ equivalent to the String.split method in JDK 1.4. It is here to enable us to support earlier JDKs. Note that unlike JDK1.4 split(), it optionally ignores leading split Characters, and the splitChar parameter is not a Regular expression

  This piece of code used to be part of JMeterUtils, but was moved here because some JOrphan classes use it too.

  Parameters:
    `splittee` - String to be split
    `splitChar` - Character(s) to split the string on, these are treated as a single unit
    `truncate` - Should adjacent and leading/trailing splitChars be removed?
  Returns:
    Array of all the tokens.
  See Also:
    `split(String, String, String)`

### split

    public static String[] split(String splittee,
                                 String splitChar)

### split

    public static String[] split(String splittee,
                                 String delims,
                                 String def)

  Takes a String and a tokenizer character string, and returns a new array of strings of the string split by the tokenizer character(s). Trailing delimiters are significant (unless the default = null)

  Parameters:
    `splittee` - String to be split.
    `delims` - Delimiter character(s) to split the string on
    `def` - Default value to place between two split chars that have nothing between them. If null, then ignore omitted elements.
  Returns:
    Array of all the tokens.
  Throws:
    `NullPointerException` - if splittee or delims are null
  See Also:
    `split(String, String, boolean)`, `This is a rewritten version of JMeterUtils.split()`

### rightAlign

    public static StringBuilder rightAlign(StringBuilder in,
                                           int len)

  Right aligns some text in a StringBuilder N.B. modifies the input buffer

  Parameters:
    `in` - StringBuilder containing some text
    `len` - output length desired
  Returns:
    input StringBuilder, with leading spaces

### leftAlign

    public static StringBuilder leftAlign(StringBuilder in,
                                          int len)

  Left aligns some text in a StringBuilder N.B. modifies the input buffer

  Parameters:
    `in` - StringBuilder containing some text
    `len` - output length desired
  Returns:
    input StringBuilder, with trailing spaces

### booleanToSTRING

    public static String booleanToSTRING(boolean value)

  Convert a boolean to its upper case string representation. Equivalent to Boolean.valueOf(boolean).toString().toUpperCase().

  Parameters:
    `value` - boolean to convert
  Returns:
    "TRUE" or "FALSE"

### replaceFirst

    public static String replaceFirst(String source,
                                      String search,
                                      String replace)

  Simple-minded String.replace() for JDK1.3 Should probably be recoded...

  Parameters:
    `source` - input string
    `search` - string to look for (no regular expressions)
    `replace` - string to replace the search string
  Returns:
    the output string

### replaceAllChars

    public static String replaceAllChars(String source,
                                         char search,
                                         String replace)

  Version of String.replaceAll() for JDK1.3 See below for another version which replaces strings rather than chars

  Parameters:
    `source` - input string
    `search` - char to look for (no regular expressions)
    `replace` - string to replace the search string
  Returns:
    the output string

### substitute

    public static String substitute(String input,
                                    String pattern,
                                    String sub)

  Replace all patterns in a String

  Parameters:
    `input` - - string to be transformed
    `pattern` - - pattern to replace
    `sub` - - replacement
  Returns:
    the updated string
  See Also:
    `- JDK1.4 only`

### trim

    public static String trim(String input,
                              String delims)

  Trim a string by the tokens provided.

  Parameters:
    `input` - string to trim
    `delims` - list of delimiters
  Returns:
    input trimmed at the first delimiter

### getByteArraySlice

    public static byte[] getByteArraySlice(byte[] array,
                                           int begin,
                                           int end)

  Returns a slice of a byte array. TODO - add bounds checking?

  Parameters:
    `array` - - input array
    `begin` - - start of slice
    `end` - - end of slice
  Returns:
    slice from the input array

### closeQuietly

    public static void closeQuietly(InputStream is)

  close a stream with no error thrown

  Parameters:
    `is` - - InputStream (may be null)

### closeQuietly

    public static void closeQuietly(OutputStream os)

  close a stream with no error thrown

  Parameters:
    `os` - - OutputStream (may be null)

### closeQuietly

    public static void closeQuietly(Writer wr)

  close a Writer with no error thrown

  Parameters:
    `wr` - - Writer (may be null)

### closeQuietly

    public static void closeQuietly(Reader rd)

  close a Reader with no error thrown

  Parameters:
    `rd` - - Reader (may be null)

### closeQuietly

    public static void closeQuietly(Socket sock)

  close a Socket with no error thrown

  Parameters:
    `sock` - - Socket (may be null)

### closeQuietly

    public static void closeQuietly(ServerSocket sock)

  close a Socket with no error thrown

  Parameters:
    `sock` - - ServerSocket (may be null)

### startsWith

    public static boolean startsWith(byte[] target,
                                     byte[] search,
                                     int offset)

  Check if a byte array starts with the given byte array.

  Parameters:
    `target` - array to scan
    `search` - array to search for
    `offset` - starting offset (>=0)
  Returns:
    true if the search array matches the target at the current offset
  See Also:
    `String.startsWith(String, int)`

### isXML

    public static boolean isXML(byte[] target)

  Detects if some content starts with the standard XML prefix.

  Parameters:
    `target` - the content to check
  Returns:
    true if the document starts with the standard XML prefix.

### baToHexString

    public static String baToHexString(byte[] ba)

  Convert binary byte array to hex string.

  Parameters:
    `ba` - input binary byte array
  Returns:
    hex representation of binary input

### baToHexBytes

    public static byte[] baToHexBytes(byte[] ba)

  Convert binary byte array to hex string.

  Parameters:
    `ba` - input binary byte array
  Returns:
    hex representation of binary input

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