Package net.sf.jnati.config
Class Configuration
- java.lang.Object
-
- net.sf.jnati.config.Configuration
-
public class Configuration extends java.lang.Object
Implements a multi-layered configuration. There are three layers of configuration - in order of increasing precedence: defaults, configuration and runtime. Defaults and configured properties can be loaded (from a .properties file) or set (from a Map), while runtime properties are retrieved from System.getProperties().- Author:
- Sam Adams
-
-
Constructor Summary
Constructors Constructor Description Configuration()
Construct a new configuration with no parameters.Configuration(java.util.Map<java.lang.String,java.lang.String> params)
Construct a new configuration with the specified parameters.Configuration(Configuration parentConfig, java.util.Map<java.lang.String,java.lang.String> params, java.util.Properties configuration)
Construct a new configuration with the specified parent configuration, and parameters.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
getProperty(java.lang.String key)
Gets the property's value.void
loadConfiguration(java.io.InputStream in)
Load the configured properties.void
loadDefaults(java.io.InputStream in)
Load the default property values.void
setConfiguration(java.util.Map<java.lang.String,java.lang.String> config)
Sets the configured properties.void
setDefaults(java.util.Map<java.lang.String,java.lang.String> defaults)
Sets the default property values.
-
-
-
Constructor Detail
-
Configuration
public Configuration()
Construct a new configuration with no parameters.
-
Configuration
public Configuration(java.util.Map<java.lang.String,java.lang.String> params)
Construct a new configuration with the specified parameters.- Parameters:
params
-
-
Configuration
public Configuration(Configuration parentConfig, java.util.Map<java.lang.String,java.lang.String> params, java.util.Properties configuration)
Construct a new configuration with the specified parent configuration, and parameters.- Parameters:
parentConfig
-params
-
-
-
Method Detail
-
loadDefaults
public void loadDefaults(java.io.InputStream in) throws java.io.IOException
Load the default property values. Existing defaults with the same name will be overridden. Invokes java.util.Properties.load().- Parameters:
in
-- Throws:
java.io.IOException
-
setDefaults
public void setDefaults(java.util.Map<java.lang.String,java.lang.String> defaults)
Sets the default property values. Existing defaults with the same name will be overridden.- Parameters:
defaults
-
-
loadConfiguration
public void loadConfiguration(java.io.InputStream in) throws java.io.IOException
Load the configured properties. Invokes java.util.Properties.load().- Parameters:
in
-- Throws:
java.io.IOException
-
setConfiguration
public void setConfiguration(java.util.Map<java.lang.String,java.lang.String> config)
Sets the configured properties.- Parameters:
config
-
-
getProperty
public java.lang.String getProperty(java.lang.String key)
Gets the property's value.- Parameters:
key
-- Returns:
- The value for the specified key, or null if no property of that name exists.
-
-