io.tsdb.services.framework.common.configuration

Class ConfigurationReader

java.lang.Object

io.tsdb.services.framework.common.configuration.ConfigurationReader

public final class ConfigurationReader
extends java.lang.Object

The ConfigurationReader class is used to read the various configuration sources with varied priorities.

Priority List (later values override earlier ones): 1) Environment Variables 2) Command Line Parameters ex. -Dconfig.reload.interval.mins=4 3) environment.properties 4) application.properties

Method Summary

Modifier and Type	Method and Description
static java.lang.Boolean	getBooleanProperty(java.lang.String property, java.lang.Boolean defaultValue)
static int	getIntegerProperty(java.lang.String property, int defaultValue)
static long	getLongProperty(java.lang.String property, long defaultValue)
static java.util.List<java.lang.String>	getProperties()
static java.lang.String	getProperty(java.lang.String property) Gets a property from the COMBINED_CONFIGURATION.
static java.lang.String	getProperty(java.lang.String property, java.lang.String defaultValue) Gets a property from COMBINED_CONFIGURATION.
static boolean	hasProperty(java.lang.String property) Returns true if COMBINED_CONFIGURATION contains the provided key.
static void	loadPropertiesFile(java.lang.String fileName) Loads property file into combined configuration.
static java.lang.String	updateProperty(java.lang.String property, java.lang.String value) Updates property, will NOT save permanently

Methods inherited from class java.lang.Object

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

Method Detail

loadPropertiesFile

public static void loadPropertiesFile(java.lang.String fileName)

Loads property file into combined configuration.

Parameters:

fileName - properties file to be loaded

updateProperty

public static java.lang.String updateProperty(java.lang.String property,
                                              java.lang.String value)

Updates property, will NOT save permanently

Parameters:

property - property to be updated

value - value to be put in the property

Returns:

the value as read from the configuration after the update

getProperty

public static java.lang.String getProperty(java.lang.String property)

Gets a property from the COMBINED_CONFIGURATION.

Parameters:

property - property to be retrieved

Returns:

value of the retrieved property

hasProperty

public static boolean hasProperty(java.lang.String property)

Returns true if COMBINED_CONFIGURATION contains the provided key.

Parameters:

property - provided key to look for in COMBINED_CONFIGURATION

Returns:

whether or not COMBINED_CONFIGURATION contains the provided key

getProperty

public static java.lang.String getProperty(java.lang.String property,
                                           java.lang.String defaultValue)

Gets a property from COMBINED_CONFIGURATION.

Parameters:

property - property to be retrieved

defaultValue - default value if no value exists

Returns:

returns the value from COMBINED_CONFIGURATION or the provided default value

getBooleanProperty

public static java.lang.Boolean getBooleanProperty(java.lang.String property,
                                                   java.lang.Boolean defaultValue)

getIntegerProperty

public static int getIntegerProperty(java.lang.String property,
                                     int defaultValue)

getLongProperty

public static long getLongProperty(java.lang.String property,
                                   long defaultValue)

getProperties

public static java.util.List<java.lang.String> getProperties()