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1
21 package com.jaspersoft.jasperserver.war.common;
22
23 import java.util.ArrayList  ;
24 import java.util.Arrays ;
25 import java.util.Collections ;
26 import java.util.Iterator ;
27 import java.util.List ;
28 import java.util.Locale ;
29 import java.util.Map ;
30 import java.util.TimeZone ;
31
32 import org.apache.commons.collections.ReferenceMap;
33 import org.springframework.beans.factory.InitializingBean;
34
35 import com.jaspersoft.jasperserver.api.JSException;
36 import com.jaspersoft.jasperserver.war.dto.StringOption;
37
38
42 public class JdkTimeZonesList implements TimeZonesList, InitializingBean {
43
44 private List timeZonesIds;
45 private final Map userTimeZonesLists;
46
47 public JdkTimeZonesList() {
48 userTimeZonesLists = Collections.synchronizedMap(new ReferenceMap(ReferenceMap.HARD, ReferenceMap.SOFT));
49 }
50
51 public void afterPropertiesSet() throws Exception {
52 if (timeZonesIds == null) {
53 String [] availableIDs = TimeZone.getAvailableIDs();
54 timeZonesIds = Arrays.asList(availableIDs);
55 }
56 }
57
58 public List getTimeZones(Locale userLocale) {
59 List timeZones = (List ) userTimeZonesLists.get(userLocale);
60 if (timeZones == null) {
61 timeZones = createTimeZones(userLocale);
62 userTimeZonesLists.put(userLocale, timeZones);
63 }
64 return timeZones;
65 }
66
67 protected List createTimeZones(Locale userLocale) {
68 List timeZones = new ArrayList (timeZonesIds.size());
69 for (Iterator it = timeZonesIds.iterator(); it.hasNext();) {
70 String id = (String ) it.next();
71 String description = getTimeZoneDescription(id, userLocale);
72 StringOption option = new StringOption(id, description);
73 timeZones.add(option);
74 }
75 return timeZones;
76 }
77
78 protected String getTimeZoneDescription(String id, Locale userLocale) {
79 TimeZone timeZone = TimeZone.getTimeZone(id);
80 if (timeZone == null) {
81 throw new JSException("Unknown time zone \"" + id + "\"");
82 }
83 return timeZone.getDisplayName(userLocale);
84 }
85
86 public List getTimeZonesIds() {
87 return timeZonesIds;
88 }
89
90 public void setTimeZonesIds(List timeZonesIds) {
91 this.timeZonesIds = timeZonesIds;
92 userTimeZonesLists.clear();
93 }
94
95 }
96 |
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