org.ops4j.pax.exam

Class ConfigurationManager

java.lang.Object

org.ops4j.pax.exam.ConfigurationManager

public class ConfigurationManager
extends Object

Reads configuration settings from a properties file exam.properties at the root of the classpath. System properties take precedence over properties in the configuration file.

Also allows setting system properties from a properties URL.

Since:

Dec 2011

Author:

Harald Wellmann

Constructor Summary

Constructors

Constructor and Description
ConfigurationManager() Creates a configuration manager.

Method Summary

Modifier and Type	Method and Description
String	getProperty(String key) Returns the configuration property for the given key.
String	getProperty(String key, String defaultValue) Returns the configuration property for the given key, or the given default value.
void	loadSystemProperties(String configurationKey) Loads system properties from the given configuration key.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConfigurationManager

public ConfigurationManager()

Creates a configuration manager.

Method Detail

getProperty

public String getProperty(String key)

Returns the configuration property for the given key.

Parameters:

key - configuration key

Returns:

configuration value, or null

getProperty

public String getProperty(String key,
                          String defaultValue)

Returns the configuration property for the given key, or the given default value.

Parameters:

key - configuration key

defaultValue - default value for key

Returns:

configuration value, or the default value if the key is not defined

loadSystemProperties

public void loadSystemProperties(String configurationKey)

Loads system properties from the given configuration key.

If this configuration key has no value, then this method has no effect.

If the value starts with env:, this prefix is stripped and the remainder is taken to be an environment variable. The value is then replaced by the value of the environment variable.

This value is now interpreted as a classpath resource and converted to a URL. If the value has no matching classpath resource, the value itself is interpreted as a URL.

Finally, properties are loaded from this URL and merged into the current system properties.

Parameters:

configurationKey - configuration key, the value defining a property source