OpenCardPropertyFileLoader

java.lang.Object
- opencard.opt.util.OpenCardPropertyFileLoader

All Implemented Interfaces:

OpenCardConfigurationProvider
```
public class OpenCardPropertyFileLoader
extends java.lang.Object
implements OpenCardConfigurationProvider
```
OpenCardPropertyFileLoader is a utility class that loads the opencard.properties file and merges the properties found in there with the system properties. Usually system properties will override properties found in the opencard.properties file. In case a property from the opencard.properties should override a system property you will have to use a second property using the first property's name plus the suffix .override and set it to true, e.g.
```
 OpenCard.trace = opencard.core:8
 
```
To let this property always override the system property of the same name add
```
 OpenCard.trace.override = true
 
```
Author:

Mike Wendler (mwendler@de.ibm.com)

See Also:

OpenCardConfigurationProvider

Constructor Summary

Constructors
Constructor Description

OpenCardPropertyFileLoader()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`load(java.lang.String location)`	Tries to load a property file from `location`.
`void`	`loadProperties()`	Loads OpenCard properties from a property file.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - OpenCardPropertyFileLoader
```
public OpenCardPropertyFileLoader()
```
- Method Detail
  - load
```
protected void load(java.lang.String location)
```
    Tries to load a property file from location.
    
    Parameters:
    
    location - The path to the property file location.
  - loadProperties
```
public void loadProperties()
                    throws OpenCardPropertyLoadingException
```
    Loads OpenCard properties from a property file. The following locations will be searched for a properties file (in that order):
    
    [java.home]/lib/opencard.properties
    [user.home]/.opencard.properties
    [user.dir]/opencard.properties
    [user.dir]/.opencard.properties
    
    NOTE that if a property file exists in several of these locations each one is being read. Conceptually this makes it possible to have a general property file, say in user.home, and more specific ones in the current directories which extend the general one.
    java.home is the directory of your java installation, user.home the user's home directory, and user.dir the current working directory.
    Specified by:
    
    loadProperties in interface OpenCardConfigurationProvider
    
    Throws:
    
    OpenCardPropertyLoadingException - thrown when no property file could be found