org.jboss.netty.util.internal

Class SystemPropertyUtil

java.lang.Object

org.jboss.netty.util.internal.SystemPropertyUtil

public final class SystemPropertyUtil
extends java.lang.Object

A collection of utility methods to retrieve and parse the values of the Java system properties.

Field Summary

Fields

Modifier and Type	Field and Description
private static boolean	initializedLogger
private static java.util.regex.Pattern	INTEGER_PATTERN
private static boolean	loggedException
private static InternalLogger	logger

Constructor Summary

Constructors

Modifier	Constructor and Description
private	SystemPropertyUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	contains(java.lang.String key) Returns true if and only if the system property with the specified key exists.
static java.lang.String	get(java.lang.String key) Returns the value of the Java system property with the specified key, while falling back to null if the property access fails.
static java.lang.String	get(java.lang.String key, java.lang.String def) Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.
static boolean	getBoolean(java.lang.String key, boolean def) Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.
static int	getInt(java.lang.String key, int def) Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.
static long	getLong(java.lang.String key, long def) Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.
private static void	log(java.lang.String msg)
private static void	log(java.lang.String msg, java.lang.Exception e)

Methods inherited from class java.lang.Object

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

Field Detail

initializedLogger

private static boolean initializedLogger

logger

private static final InternalLogger logger

loggedException

private static boolean loggedException

INTEGER_PATTERN

private static final java.util.regex.Pattern INTEGER_PATTERN

Constructor Detail

SystemPropertyUtil

private SystemPropertyUtil()

Method Detail

contains

public static boolean contains(java.lang.String key)

Returns true if and only if the system property with the specified key exists.

get

public static java.lang.String get(java.lang.String key)

Returns the value of the Java system property with the specified key, while falling back to null if the property access fails.

Returns:

the property value or null

get

public static java.lang.String get(java.lang.String key,
                                   java.lang.String def)

Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.

Returns:

the property value. def if there's no such property or if an access to the specified property is not allowed.

getBoolean

public static boolean getBoolean(java.lang.String key,
                                 boolean def)

Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.

Returns:

the property value. def if there's no such property or if an access to the specified property is not allowed.

getInt

public static int getInt(java.lang.String key,
                         int def)

Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.

Returns:

the property value. def if there's no such property or if an access to the specified property is not allowed.

getLong

public static long getLong(java.lang.String key,
                           long def)

Returns the value of the Java system property with the specified key, while falling back to the specified default value if the property access fails.

Returns:

the property value. def if there's no such property or if an access to the specified property is not allowed.

log

private static void log(java.lang.String msg)

log

private static void log(java.lang.String msg,
                        java.lang.Exception e)