com.unboundid.util

Enum DecimalSizeUnit

java.lang.Object

java.lang.Enum<DecimalSizeUnit>

com.unboundid.util.DecimalSizeUnit

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<DecimalSizeUnit>

public enum DecimalSizeUnit
extends java.lang.Enum<DecimalSizeUnit>

This enum defines a set of size units that can be used to represent data sizes in varying units (bytes, kilobytes, megabytes, gigabytes, etc.). This class uses decimal-based values rather than binary-based values, so each unit is 1000 times larger than the previous (for example, one kilobyte is interpreted as 1000 bytes rather than 1024 bytes).

Enum Constant Summary

Enum Constants

Enum Constant and Description
BYTES The size unit that represents bytes.
EXABYTES The size unit that represents exabytes.
GIGABYTES The size unit that represents gigabytes.
KILOBYTES The size unit that represents kilobytes.
MEGABYTES The size unit that represents megabytes.
PETABYTES The size unit that represents petabyte.
TERABYTES The size unit that represents terabytes.
YOTTABYTES The size unit that represents yottabytes.
ZETTABYTES The size unit that represents zettabytes.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	bytesToHumanReadableSize(java.math.BigInteger numBytes) Retrieves a string that represents a human-readable representation of the specified number of bytes.
static java.lang.String	bytesToHumanReadableSize(long numBytes) Retrieves a string that represents a human-readable representation of the specified number of bytes.
static DecimalSizeUnit	forName(java.lang.String name) Retrieves the decimal size unit value that has the given name as either its singular name, plural name, or abbreviation, in a case-insensitive manner.
java.math.BigDecimal	fromBytes(java.math.BigInteger numBytes) Retrieves the number of instances of this unit represented by the specified number of bytes.
java.math.BigDecimal	fromBytes(long numBytes) Retrieves the number of instances of this unit represented by the specified number of bytes.
java.lang.String	getAbbreviation() Retrieves the abbreviation for this size unit.
java.math.BigInteger	getNumBytesPerUnit() Retrieves the number of bytes per single instance of this size unit.
java.lang.String	getPluralName() Retrieves the plural name for this size unit.
java.lang.String	getSingularName() Retrieves the singular name for this size unit.
java.math.BigInteger	toBytes(java.math.BigDecimal value) Retrieves the number of bytes in the specified number of instances of this size unit, rounded to the nearest integer.
java.math.BigInteger	toBytes(java.math.BigInteger value) Retrieves the number of bytes in the specified number of instances of this size unit.
java.math.BigInteger	toBytes(double value) Retrieves the number of bytes in the specified number of instances of this size unit, rounded to the nearest integer.
java.math.BigInteger	toBytes(long value) Retrieves the number of bytes in the specified number of instances of this size unit.
static DecimalSizeUnit	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static DecimalSizeUnit[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

BYTES

public static final DecimalSizeUnit BYTES

The size unit that represents bytes.

KILOBYTES

public static final DecimalSizeUnit KILOBYTES

The size unit that represents kilobytes. Each kilobyte is 1024 bytes.

MEGABYTES

public static final DecimalSizeUnit MEGABYTES

The size unit that represents megabytes. Each megabyte is 1024 kilobytes.

GIGABYTES

public static final DecimalSizeUnit GIGABYTES

The size unit that represents gigabytes. Each gigabyte is 1024 megabytes.

TERABYTES

public static final DecimalSizeUnit TERABYTES

The size unit that represents terabytes. Each terabyte is 1024 gigabytes.

PETABYTES

public static final DecimalSizeUnit PETABYTES

The size unit that represents petabyte. Each petabyte is 1024 terabytes.

EXABYTES

public static final DecimalSizeUnit EXABYTES

The size unit that represents exabytes. Each exabyte is 1024 petabytes.

ZETTABYTES

public static final DecimalSizeUnit ZETTABYTES

The size unit that represents zettabytes. Each zettabyte is 1024 exabytes.

YOTTABYTES

public static final DecimalSizeUnit YOTTABYTES

The size unit that represents yottabytes. Each yottabyte is 1024 zettabytes.

Method Detail

values

public static DecimalSizeUnit[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (DecimalSizeUnit c : DecimalSizeUnit.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DecimalSizeUnit valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

getNumBytesPerUnit

@NotNull
public java.math.BigInteger getNumBytesPerUnit()

Retrieves the number of bytes per single instance of this size unit.

Returns:

The number of bytes per single instance of this size unit.

getSingularName

@NotNull
public java.lang.String getSingularName()

Retrieves the singular name for this size unit.

Returns:

The singular name for this size unit.

getPluralName

@NotNull
public java.lang.String getPluralName()

Retrieves the plural name for this size unit.

Returns:

The plural name for this size unit.

getAbbreviation

@NotNull
public java.lang.String getAbbreviation()

Retrieves the abbreviation for this size unit.

Returns:

The abbreviation for this size unit.

toBytes

@NotNull
public java.math.BigInteger toBytes(long value)

Retrieves the number of bytes in the specified number of instances of this size unit.

Parameters:

value - The number of instances of this unit to convert to bytes.

Returns:

The number of bytes in the specified number of instances of this size unit.

toBytes

@NotNull
public java.math.BigInteger toBytes(@NotNull
                                             java.math.BigInteger value)

Retrieves the number of bytes in the specified number of instances of this size unit.

Parameters:

value - The number of instances of this unit to convert to bytes. It must not be null.

Returns:

The number of bytes in the specified number of instances of this size unit.

toBytes

@NotNull
public java.math.BigInteger toBytes(double value)

Retrieves the number of bytes in the specified number of instances of this size unit, rounded to the nearest integer.

Parameters:

value - The number of instances of this unit to convert to bytes.

Returns:

The number of bytes in the specified number of instances of this size unit.

toBytes

@NotNull
public java.math.BigInteger toBytes(@NotNull
                                             java.math.BigDecimal value)

Retrieves the number of bytes in the specified number of instances of this size unit, rounded to the nearest integer.

Parameters:

value - The number of instances of this unit to convert to bytes. It must not be null.

Returns:

The number of bytes in the specified number of instances of this size unit.

fromBytes

@NotNull
public java.math.BigDecimal fromBytes(long numBytes)

Retrieves the number of instances of this unit represented by the specified number of bytes.

Parameters:

numBytes - The number of bytes to use to make the determination.

Returns:

The number of instances of this unit represented by the specified number of bytes.

fromBytes

@NotNull
public java.math.BigDecimal fromBytes(@NotNull
                                               java.math.BigInteger numBytes)

Retrieves the number of instances of this unit represented by the specified number of bytes.

Parameters:

numBytes - The number of bytes to use to make the determination. It must not be null.

Returns:

The number of instances of this unit represented by the specified number of bytes.

bytesToHumanReadableSize

@NotNull
public static java.lang.String bytesToHumanReadableSize(long numBytes)

Retrieves a string that represents a human-readable representation of the specified number of bytes. The string representation will be constructed in accordance with the following rules:

• The string representation will use the abbreviation for the unit (e.g., "b" instead of "bytes", "KB" instead of kilobytes, etc.)
• If the provided value represents an exact multiple of the number of bytes for a given unit, then the string representation will be an integer followed by the abbreviation for the unit (e.g., a value of 123 will result in a string representation of "123b", a value of 524880 will result in a string representation of "5MB", a value of 7516192768 will result in a string representation of "7GB", etc.).
• If the provided value does not represent an exact multiple of the number of bytes for the given unit, then the string representation will use a floating-point number with two digits behind the decimal point. It will select the unit so that when possible, there will be between 1 and 3 digits before the decimal point (e.g., a value of 12345 will result in a string representation of "12.06KB", a value of 9876543210 will result in a string representation of "9.20GB", etc.).

Parameters:

numBytes - The number of bytes to represent as a human-readable size. It must be greater than or equal to zero.

Returns:

A string that represents a human-readable representation of the specified number of bytes.

bytesToHumanReadableSize

@NotNull
public static java.lang.String bytesToHumanReadableSize(@NotNull
                                                                 java.math.BigInteger numBytes)

Retrieves a string that represents a human-readable representation of the specified number of bytes. The string representation will be constructed in accordance with the following rules:

• The string representation will use the abbreviation for the unit (e.g., "B" instead of "bytes", "KB" instead of kilobytes, etc.)
• The string representation The string representation will use the abbreviation for the unit (e.g., "B" instead of "bytes", "KB" instead of kilobytes, etc.)
• If the provided value represents an exact multiple of the number of bytes for the selected unit, then the string representation will be an integer followed by the abbreviation for the unit (e.g., a value of 123 will result in a string representation of "123B", a value of 524880 will result in a string representation of "5MB", a value of 7516192768 will result in a string representation of "7GB", etc.).
• If the provided value does not represent an exact multiple of the number of bytes for the selected unit, then the string representation will use a floating-point number with two digits behind the decimal point (e.g., a value of 12345 will result in a string representation of "12.06KB", a value of 9876543210 will result in a string representation of "9.20GB", etc.).

Parameters:

numBytes - The number of bytes to represent as a human-readable size. It must not be null, and it must represent a value that is greater than or equal to zero.

Returns:

A string that represents a human-readable representation of the specified number of bytes.

forName

@Nullable
public static DecimalSizeUnit forName(@NotNull
                                                java.lang.String name)

Retrieves the decimal size unit value that has the given name as either its singular name, plural name, or abbreviation, in a case-insensitive manner.

Parameters:

name - The name for which to retrieve the decimal size unit value. It must not be null.

Returns:

The decimal size unit value for the given name, or null if no value has a singular name, plural name, or abbreviation that matches the provided name in a case-insensitive manner.