ninja.utils

Class SwissKnife

java.lang.Object

ninja.utils.SwissKnife

public class SwissKnife
extends Object

A helper class that contains a lot of random stuff that helps to get things done.

Author:

ra

Constructor Summary

Constructors

Constructor and Description
SwissKnife()

Method Summary

Modifier and Type	Method and Description
static boolean	doesClassExist(String nameWithPackage, Object instanceToGetClassloaderFrom) Used to check whether a class exists on the classpath.
static String	getRealClassNameLowerCamelCase(Object object) Returns the lower class name.
static org.apache.commons.configuration.PropertiesConfiguration	loadConfigurationInUtf8(String fileOrUrlOrClasspathUrl) This is important: We load stuff as UTF-8.

Methods inherited from class java.lang.Object

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

Constructor Detail

SwissKnife

public SwissKnife()

Method Detail

loadConfigurationInUtf8

public static org.apache.commons.configuration.PropertiesConfiguration loadConfigurationInUtf8(String fileOrUrlOrClasspathUrl)

This is important: We load stuff as UTF-8. We are using in the default Apache Commons loading mechanism. With two little tweaks: 1. We don't accept any delimimter by default 2. We are reading in UTF-8 More about that: http://commons.apache.org/configuration/userguide/howto_filebased .html#Loading From the docs: - If the combination from base path and file name is a full URL that points to an existing file, this URL will be used to load the file. - If the combination from base path and file name is an absolute file name and this file exists, it will be loaded. - If the combination from base path and file name is a relative file path that points to an existing file, this file will be loaded. - If a file with the specified name exists in the user's home directory, this file will be loaded. - Otherwise the file name is interpreted as a resource name, and it is checked whether the data file can be loaded from the classpath.

Parameters:

fileOrUrlOrClasspathUrl - Location of the file. Can be on file system, or on the classpath. Will both work.

Returns:

A PropertiesConfiguration or null if there were problems getting it.

getRealClassNameLowerCamelCase

public static String getRealClassNameLowerCamelCase(Object object)

Returns the lower class name. Eg. A class named MyObject will become "myObject".

Parameters:

object - Object for which to return the lowerCamelCaseName

Returns:

the lowerCamelCaseName of the Object

doesClassExist

public static boolean doesClassExist(String nameWithPackage,
                                     Object instanceToGetClassloaderFrom)

Used to check whether a class exists on the classpath.

Parameters:

nameWithPackage - for instance com.example.conf.GloablFilters

instanceToGetClassloaderFrom - usually "this" if you call this method.

Returns:

true if class exists, false if not.