Package net.ontopia.utils

Class PropertyUtils

java.lang.Object

net.ontopia.utils.PropertyUtils

public class PropertyUtils
extends Object

INTERNAL: Utility class for handling properties and their values.

Constructor Summary

Constructors

Constructor	Description
PropertyUtils()

Method Summary

Modifier and Type	Method	Description
static int	getInt(String property_value)
static int	getInt(String property_value, int default_value)	INTERNAL: Returns the property value as an int.
static String	getProperty(Map<String,String> properties, String name)	INTERNAL: Helper method used to get better error messages with less typing.
static String	getProperty(Map<String,String> properties, String name, boolean required)	INTERNAL: Helper method used to get better error messages with less typing.
static String	getProperty(Map<String,String> properties, String name, String fallback)	INTERNAL: Helper method used to get better error messages with less typing.
static boolean	isTrue(String property_value, boolean default_value)
static Properties	loadProperties(File propfile)	INTERNAL; Reads properties from a file.
static Properties	loadProperties(InputStream istream)
static Properties	loadPropertiesFromClassPath(String resource)
static Map<String,String>	subset(Map<String,String> properties, String prefix)
static Map<String,String>	toMap(Properties properties)

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyUtils

public PropertyUtils()

Method Detail

getProperty

public static String getProperty(Map<String,String> properties,
                                 String name)

INTERNAL: Helper method used to get better error messages with less typing.

getProperty

public static String getProperty(Map<String,String> properties,
                                 String name,
                                 String fallback)

INTERNAL: Helper method used to get better error messages with less typing.

getProperty

public static String getProperty(Map<String,String> properties,
                                 String name,
                                 boolean required)

INTERNAL: Helper method used to get better error messages with less typing.

isTrue

public static boolean isTrue(String property_value,
                             boolean default_value)

getInt

public static int getInt(String property_value,
                         int default_value)

INTERNAL: Returns the property value as an int. If the value is not set or any problems occur the default value is returned.

getInt

public static int getInt(String property_value)
                  throws NumberFormatException

Throws:

NumberFormatException

loadProperties

public static Properties loadProperties(File propfile)
                                 throws IOException

INTERNAL; Reads properties from a file.

Throws:

IOException

loadPropertiesFromClassPath

public static Properties loadPropertiesFromClassPath(String resource)
                                              throws IOException

Throws:

IOException

loadProperties

public static Properties loadProperties(InputStream istream)
                                 throws IOException

Throws:

IOException

toMap

public static Map<String,String> toMap(Properties properties)

subset

public static Map<String,String> subset(Map<String,String> properties,
                                              String prefix)