X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.db.procore%2Fsrc%2Ffi%2Fvtt%2Fsimantics%2Fprocore%2Finternal%2FClusterChangeManager.java;fp=bundles%2Forg.simantics.db.procore%2Fsrc%2Ffi%2Fvtt%2Fsimantics%2Fprocore%2Finternal%2FClusterChangeManager.java;h=9f203c8af5a1402853fa10593fcaeb5049a1001d;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.db.procore/src/fi/vtt/simantics/procore/internal/ClusterChangeManager.java b/bundles/org.simantics.db.procore/src/fi/vtt/simantics/procore/internal/ClusterChangeManager.java
new file mode 100644
index 000000000..9f203c8af
--- /dev/null
+++ b/bundles/org.simantics.db.procore/src/fi/vtt/simantics/procore/internal/ClusterChangeManager.java
@@ -0,0 +1,65 @@
+package fi.vtt.simantics.procore.internal;
+
+import gnu.trove.set.hash.THashSet;
+
+import java.util.Collection;
+import java.util.LinkedList;
+
+public class ClusterChangeManager {
+    
+    final private THashSet<ClusterChange> clusterChanges = new THashSet<ClusterChange>();
+    final private LinkedList<ClusterChange> removeList = new LinkedList<ClusterChange>();
+    private int changeCounter = 0;
+    private int byteLimit = 65536;
+    
+    public void checkFlush() {
+        if(changeCounter < 50) return;
+        ClusterChange test = removeList.poll();
+        if(test == null) return;
+        if(test.byteIndex > byteLimit) {
+            test.flushCollect(null);
+        } else {
+            removeList.add(test);
+        }
+    }
+    
+    public void updateChangeCounters() {
+        changeCounter = clusterChanges.size();
+        byteLimit = (100-changeCounter)*ClusterChange.MAX_FIXED_BYTES;
+    }
+
+    void addChange(ClusterChange change) {
+        clusterChanges.add(change);
+        updateChangeCounters();
+    }
+
+    Collection<ClusterChange> get() {
+        return clusterChanges;
+    }
+    
+    void add(ClusterChange change) {
+        if(clusterChanges.add(change)) {
+            removeList.add(change);
+        } else {
+            new Exception("trying to add change that already exists").printStackTrace();
+        }
+        updateChangeCounters();
+    }
+    
+    void remove(Collection<ClusterChange> changes) {
+        clusterChanges.removeAll(changes);
+        removeList.removeAll(changes);
+        updateChangeCounters();
+    }
+    
+    int size() {
+        return clusterChanges.size();
+    }
+    
+    void clear() {
+        clusterChanges.clear();
+        removeList.clear();
+        updateChangeCounters();
+    }
+    
+}