2 files changed, 5 insertions, 2 deletions
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java
index 0efa710..26f0e0b 100644
--- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/Agent.java
@@ -46,7 +46,8 @@ public class Agent {
         HashMap<ModuleType, Module> modules = new HashMap<ModuleType, Module>();
         modules.put(ModuleType.TIMER_SCHEDULER, new TimerScheduler(ModuleType.TIMER_SCHEDULER));
         modules.put(ModuleType.RMI, new Remik());
-        modules.put(ModuleType.STATE, new Stanik());
+        Long freshnessPeriod = new Long(System.getProperty("freshness_period"));
+        modules.put(ModuleType.STATE, new Stanik(freshnessPeriod));
         modules.put(ModuleType.QUERY, new Qurnik());
         // TODO add modules as we implement them
         return modules;
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Stanik.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Stanik.java
index 6c0f380..6761c94 100644
--- a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Stanik.java
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/Stanik.java
@@ -94,6 +94,8 @@ public class Stanik extends Module {
     private boolean pruneZMI(ZMI zmi, ValueTime time) {
         Value timestamp = zmi.getAttributes().get("timestamp");
 
+        boolean isLeaf = zmi.getSons().isEmpty();
+
         List<ZMI> sonsToRemove = new LinkedList();
         if (ValueUtils.valueLower(timestamp, time.subtract(new ValueDuration(freshnessPeriod)))) {
             if (zmi.getFather() != null) {
@@ -111,7 +113,7 @@ public class Stanik extends Module {
             zmi.removeSon(son);
         }
 
-        if (zmi.getSons().isEmpty()) {
+        if (!isLeaf && zmi.getSons().isEmpty()) {
             return true;
         }