X-Git-Url: https://juplo.de/gitweb/?p=demos%2Fkafka%2Foutbox;a=blobdiff_plain;f=delivery%2Fsrc%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Foutbox%2Fdelivery%2FWatermarks.java;fp=delivery%2Fsrc%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Foutbox%2Fdelivery%2FWatermarks.java;h=8f071f92504401ff1bb04e79a9607dde779559cb;hp=0000000000000000000000000000000000000000;hb=374dcbb90bcafe7682a8626de94ed0cd4c377e5e;hpb=cf23cb6c92a4a166ab9a8dff7d967a0bb2847378

diff --git a/delivery/src/main/java/de/juplo/kafka/outbox/delivery/Watermarks.java b/delivery/src/main/java/de/juplo/kafka/outbox/delivery/Watermarks.java
new file mode 100644
index 0000000..8f071f9
--- /dev/null
+++ b/delivery/src/main/java/de/juplo/kafka/outbox/delivery/Watermarks.java
@@ -0,0 +1,32 @@
+package de.juplo.kafka.outbox.delivery;
+
+
+public class Watermarks
+{
+  private long[] watermarks = new long[0];
+
+
+  public synchronized void set(int partition, long watermark)
+  {
+    if (partition >= watermarks.length)
+    {
+      long[] resized = new long[partition + 1];
+      for (int i = 0; i < watermarks.length; i++)
+        resized[i] = watermarks[i];
+      watermarks = resized;
+    }
+
+    watermarks[partition] = watermark;
+  }
+
+  public synchronized long getLowest()
+  {
+    long lowest = Long.MAX_VALUE;
+
+    for (int i = 0; i < watermarks.length; i++)
+      if (watermarks[i] < lowest)
+        lowest = watermarks[i];
+
+    return lowest;
+  }
+}