Question

What is the best way to use e.g. FileOutputStream without cluttering my code.

Example the following code:

What I need to do is:

FileOutputStream fOut = new FileOutputStream(file);    
while(!Thread.currentThread().isInterrupted()){  
   fOut.write(data);  
   //other code  
}   

But if I add the exception handling is all messy. I thought for example something like the following:

private FileOutputStream openStream(String file){  
   try{  
      return new FileOutputStream(file);    
   }  
   catch(FileNotFoundException e){  
      return null;  
   }    
 }  

But then it makes the logic weird. I mean when I close the stream, e.g. in another method etc.
What is the way to get clearer code

Answer 1

What about a wrapper like this:

public class StreamWrapper {

    private FileOutputStream fileOutputStream;

    public FileOutputStream open(String file) {
        try {
            fileOutputStream = new FileOutputStream(file);
        } catch (FileNotFoundException e) {
            // Define action
        }
        return fileOutputStream;
    }

    public void close() {
        try {
            fileOutputStream.close();
        } catch (IOException e) {
            // Define action
        }
    }

}

And use it like:

StreamWrapper wrapper = new StreamWrapper();
FileOutputStream fOut = wrapper.open("file");
// something
wrapper.close();