XMLResourceBundleControl.java Source code

Introduction

Here is the source code for XMLResourceBundleControl.java

Source

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.Collections;
import java.util.Enumeration;
import java.util.List;
import java.util.Locale;
import java.util.Properties;
import java.util.ResourceBundle;
import java.util.Set;

public class XMLResourceBundleControl extends ResourceBundle.Control {
    private static String XML = "xml";

    public List<String> getFormats(String baseName) {
        return Collections.singletonList(XML);
    }

    public ResourceBundle newBundle(String baseName, Locale locale, String format, ClassLoader loader,
            boolean reload) throws IllegalAccessException, InstantiationException, IOException {

        if ((baseName == null) || (locale == null) || (format == null) || (loader == null)) {
            throw new NullPointerException();
        }
        ResourceBundle bundle = null;
        if (!format.equals(XML)) {
            return null;
        }

        String bundleName = toBundleName(baseName, locale);
        String resourceName = toResourceName(bundleName, format);
        URL url = loader.getResource(resourceName);
        if (url == null) {
            return null;
        }
        URLConnection connection = url.openConnection();
        if (connection == null) {
            return null;
        }
        if (reload) {
            connection.setUseCaches(false);
        }
        InputStream stream = connection.getInputStream();
        if (stream == null) {
            return null;
        }
        BufferedInputStream bis = new BufferedInputStream(stream);
        bundle = new XMLResourceBundle(bis);
        bis.close();

        return bundle;
    }

    public static void main(String args[]) {
        ResourceBundle bundle = ResourceBundle.getBundle("Strings", new XMLResourceBundleControl());
        String string = bundle.getString("Key");
        System.out.println("Key: " + string);
    }
}

class XMLResourceBundle extends ResourceBundle {
    private Properties props;

    XMLResourceBundle(InputStream stream) throws IOException {
        props = new Properties();
        props.loadFromXML(stream);
    }

    protected Object handleGetObject(String key) {
        return props.getProperty(key);
    }

    public Enumeration<String> getKeys() {
        Set<String> handleKeys = props.stringPropertyNames();
        return Collections.enumeration(handleKeys);
    }
}