Merge pull request ethlo#6 from ethlo/issue-4-leap-second-parsing

Use exception for signaling leap second

src/main/java/com/ethlo/time/FastInternetDateTimeUtil.java

@@ -35,8 +35,6 @@
 public class FastInternetDateTimeUtil extends AbstractRfc3339 implements W3cDateTimeUtil
 {
     public static final int LEAP_SECOND_SECONDS = 60;
-    private final StdJdkInternetDateTimeUtil delegate = new StdJdkInternetDateTimeUtil();
-
     private static final char PLUS = '+';
     private static final char MINUS = '-';
     private static final char DATE_SEPARATOR = '-';
@@ -48,6 +46,7 @@ public class FastInternetDateTimeUtil extends AbstractRfc3339 implements W3cDate
     private static final char ZULU_UPPER = 'Z';
     private static final char ZULU_LOWER = 'z';
     private static final int[] widths = new int[]{100_000_000, 10_000_000, 1_000_000, 100_000, 10_000, 1_000, 100, 10, 1};
+    private final StdJdkInternetDateTimeUtil delegate = new StdJdkInternetDateTimeUtil();
 
     @Override
     public OffsetDateTime parseDateTime(String s)
@@ -414,7 +413,7 @@ else if (remaining == 0)
                     && utcMinute == 59)
             {
                 // Consider it a leap second
-                return OffsetDateTime.of(year, month, day, hour, minute, 59, fractions, offset).plusSeconds(1);
+                throw new LeapSecondException(OffsetDateTime.of(year, month, day, hour, minute, 59, fractions, offset).plusSeconds(1), second);
             }
         }
         return OffsetDateTime.of(year, month, day, hour, minute, second, fractions, offset);

src/main/java/com/ethlo/time/LeapSecondException.java

@@ -0,0 +1,45 @@
+package com.ethlo.time;
+
+/*-
+ * #%L
+ * Internet Time Utility
+ * %%
+ * Copyright (C) 2017 - 2019 Morten Haraldsen (ethlo)
+ * %%
+ * 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.
+ * #L%
+ */
+
+import java.time.OffsetDateTime;
+
+public class LeapSecondException extends RuntimeException
+{
+    private final int secondsInMinute;
+    private final OffsetDateTime nearestDateTime;
+
+    public LeapSecondException(OffsetDateTime nearestDateTime, int secondsInMinute)
+    {
+        this.nearestDateTime = nearestDateTime;
+        this.secondsInMinute = secondsInMinute;
+    }
+
+    public int getSecondsInMinute()
+    {
+        return secondsInMinute;
+    }
+
+    public OffsetDateTime getNearestDateTime()
+    {
+        return nearestDateTime;
+    }
+}