From a35510c875ac1381ab2951d3b539d61129203462 Mon Sep 17 00:00:00 2001
From: ribeaudc <ribeaudc>
Date: Tue, 15 Apr 2008 02:16:46 +0000
Subject: [PATCH] [LMS-328] add: - time zone to registration date.
SVN: 5519
---
.../cisd/common/utilities/DateTimeUtils.java | 65 +++++++++++++++++++
1 file changed, 65 insertions(+)
create mode 100644 common/source/java/ch/systemsx/cisd/common/utilities/DateTimeUtils.java
diff --git a/common/source/java/ch/systemsx/cisd/common/utilities/DateTimeUtils.java b/common/source/java/ch/systemsx/cisd/common/utilities/DateTimeUtils.java
new file mode 100644
index 00000000000..e79a31a6e1b
--- /dev/null
+++ b/common/source/java/ch/systemsx/cisd/common/utilities/DateTimeUtils.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2008 ETH Zuerich, CISD
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ch.systemsx.cisd.common.utilities;
+
+import java.util.Calendar;
+import java.util.Date;
+
+import org.apache.commons.lang.time.DateUtils;
+
+/**
+ * A suite of utilities surrounding the use of the {@link java.util.Calendar} and
+ * {@link java.util.Date} object.
+ *
+ * @author Christian Ribeaud
+ */
+public final class DateTimeUtils
+{
+ /**
+ * Returns the time zone in the following form: <code>GMT+01:00</code> (could not be easily
+ * performed with <i>Java</i>).
+ */
+ public final static String getTimeZone(final Date date)
+ {
+ assert date != null : "Unspecified date.";
+ final Calendar calendar = Calendar.getInstance();
+ calendar.setTime(date);
+ final StringBuffer zoneString = new StringBuffer();
+ int value = calendar.get(Calendar.ZONE_OFFSET) + calendar.get(Calendar.DST_OFFSET);
+ if (value < 0)
+ {
+ zoneString.append('-');
+ // Suppress the '-' sign for text display.
+ value = -value;
+ } else
+ {
+ zoneString.append('+');
+ }
+ int num = value / (int) DateUtils.MILLIS_PER_HOUR;
+ zoneString.append(prependZeroIfNeeded(num));
+ zoneString.append(":");
+ num = (value % (int) DateUtils.MILLIS_PER_HOUR) / (int) DateUtils.MILLIS_PER_MINUTE;
+ zoneString.append(prependZeroIfNeeded(num));
+ return "GMT" + zoneString.toString();
+ }
+
+ private final static String prependZeroIfNeeded(final int num)
+ {
+ return num < 10 ? "0" + num : "" + num;
+ }
+
+}
--
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