Get a files in the classpath that match a given pattern

[Marcio F. Lima]

Hello guys!

Let me try to explain what I need.

I have some config files in my classpath in both the classes directory and inside some jars also.
They follow a predefined naming convention. I'd like to get their contents. The problem is that they are in different subdirectories. Here's the example:

com.company.module1.config.properties
com.company.module2.config.properties
...
com.company.moduleN.config.properties

I'd like to have the reference to each of these files so that I can load them using ResourceBundle.getBundle(configFileFQN).

I don't think there's a method I can use to retrieve these files, I guess I'll need to look for them in each package or something. I don't know.

Does anyone have a clue?

Thanks in advance!

Marcio Fernandes de Lima
[ e-mail address and phone number deleted ]

[Jesper de Jong]

Hello Marcio, welcome to JavaRanch.

I deleted your e-mail address and phone number from your post. It's better not to post personal contact details on Internet forums like that. Did you know that there are hackers who search the Internet with automated tools to harvest things like e-mail addresses? They'll put you on spam lists and your inbox will be filled with spam e-mail. Likewise, I don't think it's a good idea to shout your personal phone number to the whole world.

[pawan chopra]

Hi Marcio,

I am not sure if I have understood your requirement correctly. See if the below code helps you:

 public class ResourceLoaderFromClassPath{
	
	
	public static void main(String...args){
		
		//Fetch all the environment variables.
		Map<String,String> enviornmentVariables = System.getenv();
		
		//Fetch classpath
		String classPath = enviornmentVariables.get("classpath");
		
		//Split based on ";"
		String[] arrayOfClassPathVariables = classPath.split(";");
		
		
		int i=0;
		//Lopp through array to filter 
		while(i<arrayOfClassPathVariables.length){
			
			//Use your pattern in this if condition
			if(arrayOfClassPathVariables[i].matches("regexpattern")){
				//Load it using resource bundle
			}
			i++;
		}
		
	}

}   

I hope it helps otherwise let us know what exactly you are looking for?>

[Srikanth Nalam]

Hi Marcio,

I think you don't have to worry about in which jar or directory the files are.

To load the content from the properties file
1.Ensure that it is in classpath
2.Note down the the full qualified name of that file (ex: com.company.module5.config.properties)
3.Pass that full qualified name to the getBundle method of ResourBudle to get the reference and load data.