X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.util%2Fsrc%2Forg%2Fargeo%2Futil%2Fnaming%2FNamingUtils.java;fp=org.argeo.util%2Fsrc%2Forg%2Fargeo%2Futil%2Fnaming%2FNamingUtils.java;h=ff4ed31b4fa88f8d9c79f4441107da9fc8cab24c;hb=b71546ddc74d6ca49d252806aafd491c75dfe1fb;hp=0000000000000000000000000000000000000000;hpb=4185ff8826f893a4a1f054f61a11b89333c3e85d;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.util/src/org/argeo/util/naming/NamingUtils.java b/org.argeo.util/src/org/argeo/util/naming/NamingUtils.java
new file mode 100644
index 000000000..ff4ed31b4
--- /dev/null
+++ b/org.argeo.util/src/org/argeo/util/naming/NamingUtils.java
@@ -0,0 +1,106 @@
+package org.argeo.util.naming;
+
+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");
+	}
+}