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/*
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* JBind
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*
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* Copyright (c) by Stefan Wachter. All rights reserved.
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*
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* Usage, modification, and redistribution is subject to license terms that are
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* available at 'http://www.jbind.org'. The JBind license is like the
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* 'Apache Software License V 1.1'.
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*/
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package org.jbind.xml.instance.data;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Enumeration;
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import java.util.Iterator;
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import java.util.List;
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import java.util.StringTokenizer;
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import org.jbind.xml.base.ILanguage;
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import org.jbind.xml.base.StringUtil;
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public class Language implements ILanguage {
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public static Language createLanguage(String aString) {
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if (StringUtil.containsWhiteSpace(aString)) {
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return null;
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}
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Enumeration e = new StringTokenizer(aString, "-");
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if (!e.hasMoreElements()) {
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return null;
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}
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String pl = (String)e.nextElement();
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if ((pl.length() < 1) || (pl.length() > 8)) {
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return null;
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}
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if (!e.hasMoreElements()) {
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return new Language(pl, null, Collections.EMPTY_LIST);
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}
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String cc = (String)e.nextElement();
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if ((cc.length() < 1) || (cc.length() > 8)) {
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return null;
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}
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List l = new ArrayList();
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while (e.hasMoreElements()) {
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String s = (String)e.nextElement();
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if ((s.length() < 1) || (s.length() > 8)) {
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return null;
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}
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l.add(s);
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}
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return new Language(pl, cc, l);
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}
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private String myPrimaryLanguage = null;
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private String myCountryCode = null;
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private List mySubTags = null;
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private Language(String aPrimaryLanguage, String aCountryCode, List aSubTags) {
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myPrimaryLanguage = aPrimaryLanguage.toLowerCase();
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myCountryCode = (null != aCountryCode) ? aCountryCode.toUpperCase() : null;
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mySubTags = new ArrayList();
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for (Iterator i = aSubTags.iterator(); i.hasNext(); ) {
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mySubTags.add(((String)i.next()).toLowerCase());
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}
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}
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public String getCountryCode() {
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return myCountryCode;
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}
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public String getPrimaryLanguage() {
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return myPrimaryLanguage;
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}
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public Iterator iterSubTags() {
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return mySubTags.iterator();
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}
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public String toString() {
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StringBuffer sb = new StringBuffer(myPrimaryLanguage);
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if (null != myCountryCode) {
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sb.append("-").append(myCountryCode);
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for (Iterator i = mySubTags.iterator(); i.hasNext(); ) {
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sb.append("-").append(i.next());
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}
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}
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return sb.toString();
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}
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public boolean equals(Object anObject) {
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boolean res = anObject instanceof ILanguage;
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if (res) {
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ILanguage l = (ILanguage)anObject;
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res = myPrimaryLanguage.equals(l.getPrimaryLanguage());
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if (res) {
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res = ((null == myCountryCode) && (null == l.getCountryCode())) || ((null != myCountryCode) && myCountryCode.equals(l.getCountryCode()));
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if (res) {
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Iterator i1 = mySubTags.iterator();
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Iterator i2 = l.iterSubTags();
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while (i1.hasNext() && i2.hasNext() && res) {
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res = i1.next().equals(i2.next());
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}
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res &= !i1.hasNext() && !i2.hasNext();
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}
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}
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}
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return res;
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}
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public int hashCode() {
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int res = myPrimaryLanguage.hashCode();
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if (null != myCountryCode) {
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res += myCountryCode.hashCode();
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}
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return res;
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}
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}
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