http://www.dropwizard.io/1.3.16/dropwizard-configuration: Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web applications.
  • Coda Hale
  • Nick Telford
  • Graham O'Regan
  • Ryan Kennedy
  • Camille Fournier
  • Carlo Barbara
  • Matt Veitas
  • Ryan Tenney
  • Jochen Schalanda
  • Glenn McAllister
  • Nick Babcock
  • Justin Plock
  • Artem Prigoda 
package io.dropwizard.configuration;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;


An implementation of ConfigurationSourceProvider that reads the configuration from the local file system. 
/**
 * An implementation of {@link ConfigurationSourceProvider} that reads the configuration from the
 * local file system.
 */
public class FileConfigurationSourceProvider implements ConfigurationSourceProvider {
    @Override
    public InputStream open(String path) throws IOException {
        final File file = new File(path);
        if (!file.exists()) {
            throw new FileNotFoundException("File " + file + " not found");
        }

        return new FileInputStream(file);
    }
}