1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portlet.currencyconverter.util;
21  
22  import com.liferay.portal.kernel.language.LanguageUtil;
23  import com.liferay.portal.kernel.util.StringPool;
24  import com.liferay.portal.kernel.webcache.WebCacheItem;
25  import com.liferay.portal.kernel.webcache.WebCachePoolUtil;
26  import com.liferay.portlet.currencyconverter.model.Currency;
27  
28  import java.util.HashSet;
29  import java.util.Iterator;
30  import java.util.Locale;
31  import java.util.Map;
32  import java.util.Set;
33  import java.util.TreeMap;
34  import java.util.concurrent.ConcurrentHashMap;
35  
36  import javax.servlet.http.HttpServletRequest;
37  import javax.servlet.jsp.PageContext;
38  
39  /**
40   * <a href="CurrencyUtil.java.html"><b><i>View Source</i></b></a>
41   *
42   * @author Brian Wing Shun Chan
43   *
44   */
45  public class CurrencyUtil {
46  
47      public static Map<String, String> getAllSymbols(PageContext pageContext) {
48          HttpServletRequest request =
49              (HttpServletRequest)pageContext.getRequest();
50  
51          Locale locale = request.getLocale();
52  
53          String key = locale.toString();
54  
55          Map<String, String> symbols = _symbolsPool.get(key);
56  
57          if (symbols != null) {
58              return symbols;
59          }
60  
61          symbols = new TreeMap<String, String>();
62  
63          Iterator<String> itr = _instance._currencyIds.iterator();
64  
65          while (itr.hasNext()) {
66              String symbol = itr.next();
67  
68              symbols.put(LanguageUtil.get(pageContext, symbol), symbol);
69          }
70  
71          _symbolsPool.put(key, symbols);
72  
73          return symbols;
74      }
75  
76      public static Currency getCurrency(String symbol) {
77          WebCacheItem wci = new CurrencyWebCacheItem(symbol);
78  
79          return (Currency)WebCachePoolUtil.get(
80              CurrencyUtil.class.getName() + StringPool.PERIOD + symbol, wci);
81      }
82  
83      public static boolean isCurrency(String symbol) {
84          return _instance._currencyIds.contains(symbol);
85      }
86  
87      private CurrencyUtil() {
88          _currencyIds = new HashSet<String>();
89  
90          _currencyIds.add("ALL");
91          _currencyIds.add("DZD");
92          _currencyIds.add("XAL");
93          _currencyIds.add("ARS");
94          _currencyIds.add("AWG");
95          _currencyIds.add("AUD");
96          _currencyIds.add("BSD");
97          _currencyIds.add("BHD");
98          _currencyIds.add("BDT");
99          _currencyIds.add("BBD");
100         _currencyIds.add("BYR");
101         _currencyIds.add("BZD");
102         _currencyIds.add("BMD");
103         _currencyIds.add("BTN");
104         _currencyIds.add("BOB");
105         _currencyIds.add("BRL");
106         _currencyIds.add("GBP");
107         _currencyIds.add("BND");
108         _currencyIds.add("BGN");
109         _currencyIds.add("BIF");
110         _currencyIds.add("KHR");
111         _currencyIds.add("CAD");
112         _currencyIds.add("KYD");
113         _currencyIds.add("XOF");
114         _currencyIds.add("XAF");
115         _currencyIds.add("CLP");
116         _currencyIds.add("CNY");
117         _currencyIds.add("COP");
118         _currencyIds.add("KMF");
119         _currencyIds.add("XCP");
120         _currencyIds.add("CRC");
121         _currencyIds.add("HRK");
122         _currencyIds.add("CUP");
123         _currencyIds.add("CYP");
124         _currencyIds.add("CZK");
125         _currencyIds.add("DKK");
126         _currencyIds.add("DJF");
127         _currencyIds.add("DOP");
128         _currencyIds.add("XCD");
129         _currencyIds.add("ECS");
130         _currencyIds.add("EGP");
131         _currencyIds.add("SVC");
132         _currencyIds.add("ERN");
133         _currencyIds.add("EEK");
134         _currencyIds.add("ETB");
135         _currencyIds.add("EUR");
136         _currencyIds.add("FKP");
137         _currencyIds.add("GMD");
138         _currencyIds.add("GHC");
139         _currencyIds.add("GIP");
140         _currencyIds.add("XAU");
141         _currencyIds.add("GTQ");
142         _currencyIds.add("GNF");
143         _currencyIds.add("HTG");
144         _currencyIds.add("HNL");
145         _currencyIds.add("HKD");
146         _currencyIds.add("HUF");
147         _currencyIds.add("ISK");
148         _currencyIds.add("INR");
149         _currencyIds.add("IDR");
150         _currencyIds.add("IRR");
151         _currencyIds.add("ILS");
152         _currencyIds.add("JMD");
153         _currencyIds.add("JPY");
154         _currencyIds.add("JOD");
155         _currencyIds.add("KZT");
156         _currencyIds.add("KES");
157         _currencyIds.add("KRW");
158         _currencyIds.add("KWD");
159         _currencyIds.add("LAK");
160         _currencyIds.add("LVL");
161         _currencyIds.add("LBP");
162         _currencyIds.add("LSL");
163         _currencyIds.add("LYD");
164         _currencyIds.add("LTL");
165         _currencyIds.add("MOP");
166         _currencyIds.add("MKD");
167         _currencyIds.add("MGF");
168         _currencyIds.add("MWK");
169         _currencyIds.add("MYR");
170         _currencyIds.add("MVR");
171         _currencyIds.add("MTL");
172         _currencyIds.add("MRO");
173         _currencyIds.add("MUR");
174         _currencyIds.add("MXN");
175         _currencyIds.add("MDL");
176         _currencyIds.add("MNT");
177         _currencyIds.add("MAD");
178         _currencyIds.add("MZM");
179         _currencyIds.add("NAD");
180         _currencyIds.add("NPR");
181         _currencyIds.add("ANG");
182         _currencyIds.add("TRY");
183         _currencyIds.add("NZD");
184         _currencyIds.add("NIO");
185         _currencyIds.add("NGN");
186         _currencyIds.add("NOK");
187         _currencyIds.add("OMR");
188         _currencyIds.add("XPF");
189         _currencyIds.add("PKR");
190         _currencyIds.add("XPD");
191         _currencyIds.add("PAB");
192         _currencyIds.add("PGK");
193         _currencyIds.add("PYG");
194         _currencyIds.add("PEN");
195         _currencyIds.add("PHP");
196         _currencyIds.add("XPT");
197         _currencyIds.add("PLN");
198         _currencyIds.add("QAR");
199         _currencyIds.add("ROL");
200         _currencyIds.add("RON");
201         _currencyIds.add("RUB");
202         _currencyIds.add("RWF");
203         _currencyIds.add("WST");
204         _currencyIds.add("STD");
205         _currencyIds.add("SAR");
206         _currencyIds.add("SCR");
207         _currencyIds.add("SLL");
208         _currencyIds.add("XAG");
209         _currencyIds.add("SGD");
210         _currencyIds.add("SKK");
211         _currencyIds.add("SIT");
212         _currencyIds.add("SOS");
213         _currencyIds.add("ZAR");
214         _currencyIds.add("LKR");
215         _currencyIds.add("SHP");
216         _currencyIds.add("SDD");
217         _currencyIds.add("SRG");
218         _currencyIds.add("SZL");
219         _currencyIds.add("SEK");
220         _currencyIds.add("CHF");
221         _currencyIds.add("SYP");
222         _currencyIds.add("TWD");
223         _currencyIds.add("TZS");
224         _currencyIds.add("THB");
225         _currencyIds.add("TOP");
226         _currencyIds.add("TTD");
227         _currencyIds.add("TND");
228         _currencyIds.add("USD");
229         _currencyIds.add("AED");
230         _currencyIds.add("UGX");
231         _currencyIds.add("UAH");
232         _currencyIds.add("UYU");
233         _currencyIds.add("VUV");
234         _currencyIds.add("VEB");
235         _currencyIds.add("VND");
236         _currencyIds.add("YER");
237         _currencyIds.add("ZMK");
238         _currencyIds.add("ZWD");
239     }
240 
241     private static CurrencyUtil _instance = new CurrencyUtil();
242 
243     private static Map<String, Map<String, String>> _symbolsPool =
244         new ConcurrentHashMap<String, Map<String, String>>();
245 
246     private Set<String> _currencyIds;
247 
248 }