com.opencloud.util

Class StringUtil

java.lang.Object

com.opencloud.util.StringUtil

public class StringUtil
extends java.lang.Object

Utility class containing static methods for appending to strings.

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.StringBuffer	append(java.lang.StringBuffer buf, byte[] o) Appends hexBytes to a StringBuffer.
static boolean	append(java.lang.StringBuffer buf, java.lang.String description, boolean flag, boolean comma) Appends description to a StringBuffer if a flag is set, optionally preceded by a comma.
static boolean	append(java.lang.StringBuffer buf, java.lang.String name, int value, boolean comma) Appends name=value to a StringBuffer, optionally preceded by a comma.
static boolean	append(java.lang.StringBuffer buf, java.lang.String name, java.lang.Object[] o, boolean comma) Appends name=[values] to a StringBuffer, optionally preceded by a comma.
static boolean	append(java.lang.StringBuffer buf, java.lang.String name, java.lang.Object o, boolean comma) Appends name=value to a StringBuffer, optionally preceded by a comma.
static java.lang.StringBuilder	append(java.lang.StringBuilder buf, byte[] o) Appends hexBytes to a StringBuilder.
static java.lang.StringBuilder	appendASN1OctetString(java.lang.StringBuilder buf, byte[] bs) Appends an octet string to a StringBuilder using standard ASN.1 mark-up.
static boolean	appendDecimal(java.lang.StringBuffer buf, java.lang.String name, byte[] o, boolean comma) Appends name=[decimalBytes] to a StringBuffer, optionally preceded by a comma.
static boolean	appendHex(java.lang.StringBuffer buf, java.lang.String name, byte[] o, boolean comma) Appends name=[hexBytes] to a StringBuffer, optionally preceded by a comma.
static boolean	appendHex(java.lang.StringBuilder buf, java.lang.String name, byte[] o, boolean comma) Appends name=[hexBytes] to a StringBuilder, optionally preceded by a comma.
static void	appendSpaces(java.lang.StringBuilder buf, int length) Appends the given number of space characters to the given StringBuilder.
static char	getHexDigit(int v) Converts a byte to a char containing its hexadecimal value.
static java.lang.String	spaces(int length) Returns a String containing the given number of space characters.
static java.lang.String	toHexString(byte[] o) Converts a byte array to a String containing the hexadecimal values of the bytes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

append

public static boolean append(java.lang.StringBuffer buf,
             java.lang.String name,
             java.lang.Object o,
             boolean comma)

Appends name=value to a StringBuffer, optionally preceded by a comma.

Parameters:

buf - StringBuffer

name - String

o - object value

comma - whether to precede with a comma

Returns:

o != null || comma

append

public static boolean append(java.lang.StringBuffer buf,
             java.lang.String name,
             java.lang.Object[] o,
             boolean comma)

Appends name=[values] to a StringBuffer, optionally preceded by a comma.

Parameters:

buf - StringBuffer

name - String

o - object values

comma - whether to precede with a comma

Returns:

o != null || comma

append

public static boolean append(java.lang.StringBuffer buf,
             java.lang.String name,
             int value,
             boolean comma)

Appends name=value to a StringBuffer, optionally preceded by a comma.

Parameters:

buf - StringBuffer

name - String

value - integer value

comma - whether to precede with a comma

Returns:

true

append

public static boolean append(java.lang.StringBuffer buf,
             java.lang.String description,
             boolean flag,
             boolean comma)

Appends description to a StringBuffer if a flag is set, optionally preceded by a comma.

Parameters:

buf - StringBuffer

description - String

flag - whether to append description

comma - whether to precede with a comma

Returns:

whether anything was appended

appendDecimal

public static boolean appendDecimal(java.lang.StringBuffer buf,
                    java.lang.String name,
                    byte[] o,
                    boolean comma)

Appends name=[decimalBytes] to a StringBuffer, optionally preceded by a comma.

Parameters:

buf - StringBuffer

name - String

o - byte array

comma - whether to precede with a comma

Returns:

o != null || comma

appendHex

public static boolean appendHex(java.lang.StringBuffer buf,
                java.lang.String name,
                byte[] o,
                boolean comma)

Appends name=[hexBytes] to a StringBuffer, optionally preceded by a comma.

Parameters:

buf - StringBuffer

name - String

o - byte array

comma - whether to precede with a comma

Returns:

o != null || comma

appendHex

public static boolean appendHex(java.lang.StringBuilder buf,
                java.lang.String name,
                byte[] o,
                boolean comma)

Appends name=[hexBytes] to a StringBuilder, optionally preceded by a comma.

Parameters:

buf - StringBuilder

name - String

o - byte array

comma - whether to precede with a comma

Returns:

o != null || comma

append

public static java.lang.StringBuffer append(java.lang.StringBuffer buf,
                            byte[] o)

Appends hexBytes to a StringBuffer.

Parameters:

buf - StringBuffer

o - byte array

Returns:

buf

append

public static java.lang.StringBuilder append(java.lang.StringBuilder buf,
                             byte[] o)

Appends hexBytes to a StringBuilder.

Parameters:

buf - StringBuilder

o - byte array

Returns:

buf

toHexString

public static java.lang.String toHexString(byte[] o)

Converts a byte array to a String containing the hexadecimal values of the bytes.

Parameters:

o - byte array

Returns:

String

getHexDigit

public static char getHexDigit(int v)

Converts a byte to a char containing its hexadecimal value.

Parameters:

v - byte

Returns:

char

appendASN1OctetString

public static java.lang.StringBuilder appendASN1OctetString(java.lang.StringBuilder buf,
                                            byte[] bs)

Appends an octet string to a StringBuilder using standard ASN.1 mark-up. For example, new byte[] {7,15,31} is appended as '070F1F'H.

Parameters:

buf - StringBuilder to append to

bs - byte array representing octet string

Returns:

the given StringBuilder

appendSpaces

public static final void appendSpaces(java.lang.StringBuilder buf,
                int length)

Appends the given number of space characters to the given StringBuilder.

Throws:

java.lang.NullPointerException - if buf is null

java.lang.IllegalArgumentException - if length is less than zero

spaces

public static final java.lang.String spaces(int length)

Returns a String containing the given number of space characters.

Throws:

java.lang.IllegalArgumentException - if length is less than zero