Massive package refactoring

[lgpl/argeo-commons.git] / org.argeo.api.acr / src / org / argeo / api / acr / ldap / NamingUtils.java

diff --git a/org.argeo.api.acr/src/org/argeo/api/acr/ldap/NamingUtils.java b/org.argeo.api.acr/src/org/argeo/api/acr/ldap/NamingUtils.java
new file mode 100644 (file)
index 0000000..9f7ec61
--- /dev/null
+++ b/org.argeo.api.acr/src/org/argeo/api/acr/ldap/NamingUtils.java
@@ -0,0 +1,106 @@
+package org.argeo.api.acr.ldap;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URI;
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
+import java.time.Instant;
+import java.time.OffsetDateTime;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+import java.time.temporal.ChronoField;
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.LinkedHashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+public class NamingUtils {
+       /** As per https://tools.ietf.org/html/rfc4517#section-3.3.13 */
+       private final static DateTimeFormatter utcLdapDate = DateTimeFormatter.ofPattern("uuuuMMddHHmmssX")
+                       .withZone(ZoneOffset.UTC);
+
+       /** @return null if not parseable */
+       public static Instant ldapDateToInstant(String ldapDate) {
+               try {
+                       return OffsetDateTime.parse(ldapDate, utcLdapDate).toInstant();
+               } catch (DateTimeParseException e) {
+                       return null;
+               }
+       }
+
+       /** @return null if not parseable */
+       public static ZonedDateTime ldapDateToZonedDateTime(String ldapDate) {
+               try {
+                       return OffsetDateTime.parse(ldapDate, utcLdapDate).toZonedDateTime();
+               } catch (DateTimeParseException e) {
+                       return null;
+               }
+       }
+
+       public static Calendar ldapDateToCalendar(String ldapDate) {
+               OffsetDateTime instant = OffsetDateTime.parse(ldapDate, utcLdapDate);
+               GregorianCalendar calendar = new GregorianCalendar();
+               calendar.set(Calendar.DAY_OF_MONTH, instant.get(ChronoField.DAY_OF_MONTH));
+               calendar.set(Calendar.MONTH, instant.get(ChronoField.MONTH_OF_YEAR));
+               calendar.set(Calendar.YEAR, instant.get(ChronoField.YEAR));
+               return calendar;
+       }
+
+       public static String instantToLdapDate(ZonedDateTime instant) {
+               return utcLdapDate.format(instant.withZoneSameInstant(ZoneOffset.UTC));
+       }
+
+       public static String getQueryValue(Map<String, List<String>> query, String key) {
+               if (!query.containsKey(key))
+                       return null;
+               List<String> val = query.get(key);
+               if (val.size() == 1)
+                       return val.get(0);
+               else
+                       throw new IllegalArgumentException("There are " + val.size() + " value(s) for " + key);
+       }
+
+       public static Map<String, List<String>> queryToMap(URI uri) {
+               return queryToMap(uri.getQuery());
+       }
+
+       private static Map<String, List<String>> queryToMap(String queryPart) {
+               try {
+                       final Map<String, List<String>> query_pairs = new LinkedHashMap<String, List<String>>();
+                       if (queryPart == null)
+                               return query_pairs;
+                       final String[] pairs = queryPart.split("&");
+                       for (String pair : pairs) {
+                               final int idx = pair.indexOf("=");
+                               final String key = idx > 0 ? URLDecoder.decode(pair.substring(0, idx), StandardCharsets.UTF_8.name())
+                                               : pair;
+                               if (!query_pairs.containsKey(key)) {
+                                       query_pairs.put(key, new LinkedList<String>());
+                               }
+                               final String value = idx > 0 && pair.length() > idx + 1
+                                               ? URLDecoder.decode(pair.substring(idx + 1), StandardCharsets.UTF_8.name())
+                                               : null;
+                               query_pairs.get(key).add(value);
+                       }
+                       return query_pairs;
+               } catch (UnsupportedEncodingException e) {
+                       throw new IllegalArgumentException("Cannot convert " + queryPart + " to map", e);
+               }
+       }
+
+       private NamingUtils() {
+
+       }
+
+       public static void main(String args[]) {
+               ZonedDateTime now = ZonedDateTime.now().withZoneSameInstant(ZoneOffset.UTC);
+               String str = utcLdapDate.format(now);
+               System.out.println(str);
+               utcLdapDate.parse(str);
+               utcLdapDate.parse("19520512000000Z");
+       }
+}