Support ISO8601 for KairosDbSink histogramTtl and ttl parameters. (#79)

Author: vjkoskela

src/main/java/com/arpnetworking/tsdcore/sinks/KairosDbSink.java

@@ -37,6 +37,7 @@
 import com.google.common.collect.Lists;
 import net.sf.oval.constraint.Min;
 import net.sf.oval.constraint.NotNull;
+import org.joda.time.Period;
 import org.joda.time.format.ISOPeriodFormat;
 
 import java.io.ByteArrayOutputStream;
@@ -181,10 +182,10 @@ private void addChunk(
     private KairosDbSink(final Builder builder) {
         super(builder);
         _maxRequestSize = builder._maxRequestSize;
-        _ttlSeconds = (int) builder._ttl.getSeconds();
+        _ttlSeconds = builder._ttl.toStandardSeconds().getSeconds();
         _publishStandardMetrics = builder._publishStandardMetrics;
         _publishHistograms = builder._publishHistograms;
-        _histogramTtlSeconds = (int) builder._histogramTtl.getSeconds();
+        _histogramTtlSeconds = builder._histogramTtl.toStandardSeconds().getSeconds();
     }
 
     private final int _maxRequestSize;
@@ -521,7 +522,7 @@ public Builder setPublishHistograms(final Boolean value) {
          * @param value the time to retain histograms
          * @return This instance of {@link Builder}.
          */
-        public Builder setTtl(final Duration value) {
+        public Builder setTtl(final Period value) {
             _ttl = value;
             return this;
         }
@@ -534,7 +535,7 @@ public Builder setTtl(final Duration value) {
          * @param value the time to retain histograms
          * @return This instance of {@link Builder}.
          */
-        public Builder setHistogramTtl(final Duration value) {
+        public Builder setHistogramTtl(final Period value) {
             _histogramTtl = value;
             return this;
         }
@@ -547,8 +548,8 @@ public Builder setHistogramTtl(final Duration value) {
         @NotNull
         private Boolean _publishHistograms = false;
         @NotNull
-        private Duration _histogramTtl = Duration.ofSeconds(0);
+        private Period _histogramTtl = Period.seconds(0);
         @NotNull
-        private Duration _ttl = Duration.ofSeconds(0);
+        private Period _ttl = Period.seconds(0);
     }
 }