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jBiDiB BiDiB Wizard API POM
package org.bidib.wizard.api.locale;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.text.MessageFormat;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.reflect.MethodUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Helper class for localization.
*
* @author André Schenk
*/
public final class Resources {
private static final Logger LOGGER = LoggerFactory.getLogger(Resources.class);
private static Resources resources;
private ResourceBundle properties;
private static final String BUNDLE_BASEDIR_NAME = "catalogs/";
private static final String BUNDLE_BASE_NAME = "BiDiBWizard_locale";
private static String userLocation;
private Resources(String bidibConfigDir) {
String userCountry = System.getProperty("user.country");
LOGGER.info("Current user country: {}", userCountry);
String userHome = System.getProperty("user.home");
LOGGER.info("Current user.home: {}, userLocation: {}", userHome, userLocation);
final File userDefinedFile;
if (StringUtils.isBlank(userLocation)) {
userDefinedFile = new File(userHome, ".bidib/catalogs/");
}
else {
userDefinedFile = new File(userLocation, "catalogs/");
}
if (userDefinedFile.isDirectory()) {
LOGGER.info("Found user-defined catalogs in directory under: {}", userDefinedFile.getPath());
Locale locale = Locale.getDefault();
String language = locale.getLanguage();
String country = locale.getCountry();
LOGGER.info("Search for user-defined catalogs, language: {}, country: {}", language, country);
// @formatter:off
String[] candidates =
new String[] {
BUNDLE_BASE_NAME + "_" + language + "_" + country + ".properties",
BUNDLE_BASE_NAME + "_" + language + ".properties",
BUNDLE_BASE_NAME + ".properties" };
// @formatter:on
for (String candidate : candidates) {
File candidateFile = new File(userDefinedFile, candidate);
try {
LOGGER.info("Try to load file from: {}", candidateFile.getPath());
properties = fromFile(candidateFile);
LOGGER.info("Found valid catalog: {}", candidateFile.getPath());
// return;
}
catch (Exception ex) {
LOGGER
.info("Load resource bundle from user-defined file failed: {}, reason: {}",
candidateFile.getPath(), ex.getMessage());
}
}
}
else {
LOGGER.info("No user-defined catalogs found in directory under: {}", userDefinedFile.getPath());
}
if (properties != null) {
LOGGER.info("Set the parent.");
ResourceBundle parent = ResourceBundle.getBundle(BUNDLE_BASEDIR_NAME + BUNDLE_BASE_NAME);
try {
MethodUtils.invokeMethod(properties, true, "setParent", parent);
}
catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException ex) {
LOGGER.warn("Set the parent failed.", ex);
}
}
else {
properties = ResourceBundle.getBundle(BUNDLE_BASEDIR_NAME + BUNDLE_BASE_NAME);
}
}
public static void setUserLocation(String userLocation) {
Resources.userLocation = userLocation;
}
// This method doesn't use localization
private static ResourceBundle fromFile(File userDefinedFile) throws IOException {
FileInputStream fis = new FileInputStream(userDefinedFile);
try {
return new PropertyResourceBundle(fis);
}
finally {
fis.close();
}
}
private static synchronized Resources getInstance() {
if (resources == null) {
resources = new Resources(userLocation);
}
return resources;
}
private static ResourceBundle getResources() {
return getInstance().properties;
}
public static String getString(Class clazz, String key) {
String resourceName = null;
if (clazz != null) {
resourceName = clazz.getName() + "." + key;
}
else {
resourceName = key;
}
return getString(resourceName);
}
public static String trimWizardPackage(String clazz) {
String resource = clazz;
return resource;
}
/**
* Prepare the resource key.
*
* @param resourceName
* the resource name
* @param key
* the key
* @return the resource key
*/
public static String prepareResourceKey(String resourceName, String key) {
return resourceName + "." + key;
}
/**
* Prepare the resource key.
*
* @param clazz
* the resource class name
* @param key
* the key
* @return the resource key
*/
public static String prepareResourceKey(Class clazz, String key) {
String resourceName = null;
if (clazz != null) {
resourceName = clazz.getName() + "." + key;
}
else {
resourceName = key;
}
return resourceName;
}
public static String getString(String resourceName, String key) {
return getString(resourceName + "." + key);
}
protected static String getString(String resourceName) {
String result = null;
ResourceBundle properties = getResources();
if (properties != null) {
try {
result = properties.getString(resourceName);
}
catch (MissingResourceException e) {
result = "<" + resourceName + ">";
}
}
else {
result = resourceName;
}
return result;
}
public static String getString(Class clazz, String key, Object... arguments) {
String result = null;
String template = getString(clazz, key);
if (template != null) {
template = template.replaceAll("(?) null, resourceName);
if (template != null) {
template = template.replaceAll("(?