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Copy pathLanguagePreference.java
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79 lines (66 loc) · 2.3 KB
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/*
* Copyright 2010 sasc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package sasc.emv;
import sasc.iso7816.SmartCardException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import sasc.util.Log;
import sasc.util.Util;
/**
*
* @author sasc
*/
public class LanguagePreference {
private List<Locale> prefs;
public LanguagePreference(byte[] data) {
if (data.length < 2 || data.length > 8 || data.length % 2 != 0) {
throw new SmartCardException("Array length must be an even number between 2 (inclusive) and 8 (inclusive). Length=" + data.length);
}
prefs = new ArrayList<Locale>();
int numLang = data.length / 2;
for (int i = 0; i < numLang; i++) {
String s = String.valueOf((char) data[i * 2]) + String.valueOf((char) data[i * 2 + 1]);
prefs.add(new Locale(s));
}
}
@Override
public String toString() {
StringWriter sw = new StringWriter();
dump(new PrintWriter(sw), 0);
return sw.toString();
}
public List<Locale> getLocales(){
return prefs;
}
public Locale getPreferredLocale(){
return prefs.get(0);
}
public void dump(PrintWriter pw, int indent) {
pw.println(Util.getSpaces(indent) + "Language Preference (in order of preference):");
String indentStr = Util.getSpaces(indent + Log.INDENT_SIZE);
for (Locale lang : prefs) {
String postfix = "";
String displayLanguage = lang.getDisplayLanguage(Locale.ENGLISH);
if (!"".equals(displayLanguage)) {
postfix = " (" + displayLanguage + ")";
}
pw.println(indentStr + "Language: " + lang + postfix);
}
}
}