Support for DB2 time format, patch by Niklas Mehner

h2/src/docsrc/html/changelog.html

@@ -21,6 +21,8 @@ Change Log
 
 <h2>Next Version (unreleased)</h2>
 <ul>
+<li>Support for DB2 time format, patch by Niklas Mehner
+</li>
 <li>Added support for Connection.setClientInfo() in compatibility modes for DB2, Postgresql, Oracle and MySQL.
 </li>
 <li>Issue #249: Clarify license declaration in Maven POM xml

h2/src/main/org/h2/util/DateTimeUtils.java

@@ -314,7 +314,7 @@ public class DateTimeUtils {
     }
 
     /**
-     * Parse a time string. The format is: [-]hour:minute:second[.nanos]
+     * Parse a time string. The format is: [-]hour:minute:second[.nanos] or alternatively [-]hour.minute.second[.nanos].
      *
      * @param s the string to parse
      * @param start the parse index start
@@ -331,9 +331,16 @@ public class DateTimeUtils {
         int s1 = s.indexOf(':', start);
         int s2 = s.indexOf(':', s1 + 1);
         int s3 = s.indexOf('.', s2 + 1);
+        if (s1 <= 0 || s2 <= s1) {
+            // if first try fails try to use IBM DB2 time format [-]hour.minute.second[.nanos]
+            s1 = s.indexOf('.', start);
+            s2 = s.indexOf('.', s1 + 1);
+            s3 = s.indexOf('.', s2 + 1);
+
             if (s1 <= 0 || s2 <= s1) {
                 throw new IllegalArgumentException(s);
             }
+        }
         boolean negative;
         hour = Integer.parseInt(s.substring(start, s1));
         if (hour < 0) {

h2/src/test/org/h2/test/TestAll.java

@@ -170,6 +170,7 @@ import org.h2.test.unit.TestConnectionInfo;
 import org.h2.test.unit.TestDataPage;
 import org.h2.test.unit.TestDate;
 import org.h2.test.unit.TestDateIso8601;
+import org.h2.test.unit.TestDateTimeUtils;
 import org.h2.test.unit.TestExit;
 import org.h2.test.unit.TestFile;
 import org.h2.test.unit.TestFileLock;
@@ -871,6 +872,7 @@ kill -9 `jps -l | grep "org.h2.test." | cut -d " " -f 1`
 
         // serial
         addTest(new TestDate());
+        addTest(new TestDateTimeUtils());
         addTest(new TestCluster());
         addTest(new TestConcurrent());
         addTest(new TestFileLockSerialized());

h2/src/test/org/h2/test/unit/TestDateTimeUtils.java

+/*
+ * Copyright 2004-2014 H2 Group. Multiple-Licensed under the MPL 2.0,
+ * and the EPL 1.0 (http://h2database.com/html/license.html).
+ * Initial Developer: H2 Group
+ */
+package org.h2.test.unit;
+
+import org.h2.test.TestBase;
+import org.h2.util.DateTimeUtils;
+
+/**
+ * Unit tests for the DateTimeUtils class
+ */
+public class TestDateTimeUtils extends TestBase {
+
+    /**
+     * Run just this test.
+     *
+     * @param a ignored
+     */
+    public static void main(String... a) throws Exception {
+        // System.setProperty("h2.storeLocalTime", "true");
+        TestBase.createCaller().init().test();
+    }
+
+    @Override
+    public void test() throws Exception {
+        testParseTimeNanosDB2Format();
+    }
+
+    private void testParseTimeNanosDB2Format() {
+        assertEquals(3723004000000L, DateTimeUtils.parseTimeNanos("01:02:03.004", 0, 12, true));
+        assertEquals(3723004000000L, DateTimeUtils.parseTimeNanos("01.02.03.004", 0, 12, true));
+
+        assertEquals(3723000000000L, DateTimeUtils.parseTimeNanos("01:02:03", 0, 8, true));
+        assertEquals(3723000000000L, DateTimeUtils.parseTimeNanos("01.02.03", 0, 8, true));
+    }
+}