Java Properties Load from File load(boolean loadAsResourceBundle, String name, ClassLoader loader)

Description

load

License

Open Source License

Declaration

public static Properties load(boolean loadAsResourceBundle, String name, ClassLoader loader) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.Properties;
import java.util.ResourceBundle;

public class Main {
    public static final String SUFFIX = ".properties";

    public static Properties load(boolean loadAsResourceBundle, String name, ClassLoader loader) {
        if (name == null) {
            throw new IllegalArgumentException("null input: name");
        }//  w  w  w .  j  av a2 s . c o m

        if (name.startsWith("/")) {
            name = name.substring(1);
        }

        Properties result = null;

        InputStream in = null;
        try {
            if (loadAsResourceBundle) {
                name = name.replace('/', '.');
                final ResourceBundle rb = ResourceBundle.getBundle(name, Locale.getDefault(), loader);
                result = new Properties();

                for (Enumeration<String> keys = rb.getKeys(); keys.hasMoreElements();) {
                    final String key = keys.nextElement();
                    final String value = rb.getString(key);
                    result.put(key, value);
                }
            } else {
                //name=name.replace('.', '/');
                if (!name.endsWith(SUFFIX)) {
                    name = name.concat(SUFFIX);
                }

                if (loader != null) {
                    in = loader.getResourceAsStream(name);
                } else {
                    in = new FileInputStream(new File(name));
                }

                if (in != null) {
                    result = new Properties();
                    result.load(in);
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        } catch (MissingResourceException e) {
            e.printStackTrace();
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

        return result;
    }
}

Related

1. load(Class type, String resource, Properties map)
2. load(Class cls)
3. load(File f)
4. load(File file)