X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.modeling.ui%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2Fui%2FdiagramEditor%2FDisposingPolicy.java;h=db7e2571dde5b8e8bd0cc28e5b55e2be11a8d04a;hb=43355222d559c87975f7f39dce18d36f35ea9b94;hp=a3cd08b068745f43bc0599fb04968b738b4ef9dc;hpb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DisposingPolicy.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DisposingPolicy.java
index a3cd08b06..db7e2571d 100644
--- a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DisposingPolicy.java
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DisposingPolicy.java
@@ -8,34 +8,45 @@ import org.eclipse.swt.widgets.Display;
 
 
 public class DisposingPolicy {
-    
+
     public static final boolean DEBUG = false;
-    
+
     public static final int MAX_QUEUE_LENGTH = 8;
     public static final long DISPOSE_TIME = 30000L; // ms
     public static final long MIN_DELAY = 200L; // ms
-    
-    private ArrayDeque<Runnable> disposerQueue = new ArrayDeque<Runnable>(MAX_QUEUE_LENGTH);
-    private TObjectLongHashMap<Runnable> disposeTime =
-            new TObjectLongHashMap<Runnable>(MAX_QUEUE_LENGTH);
+
+    private volatile int maxQueueLength;
+    private ArrayDeque<Runnable> disposerQueue;
+    private TObjectLongHashMap<Runnable> disposeTime;
     private Runnable currentlyScheduled = null;
-    
-    private Runnable disposeOne = new Runnable() {
-        @Override
-        public void run() {
-            if(!disposerQueue.isEmpty()) {
-                Runnable runnable = disposerQueue.removeFirst();
-                disposeTime.remove(runnable);
-                currentlyScheduled = null;
-                runnable.run();
-                if(DEBUG)
-                    System.out.println("Executed disposer " + runnable);
-                if(!disposerQueue.isEmpty())
-                    scheduleDispose();
-            }
+
+    private Runnable disposeOne = () -> {
+        if(!disposerQueue.isEmpty()) {
+            Runnable runnable = disposerQueue.removeFirst();
+            disposeTime.remove(runnable);
+            currentlyScheduled = null;
+            runnable.run();
+            if(DEBUG)
+                System.out.println("Executed disposer " + runnable); //$NON-NLS-1$
+            if(!disposerQueue.isEmpty())
+                scheduleDispose();
         }
     };
-    
+
+    public DisposingPolicy() {
+        this(MAX_QUEUE_LENGTH);
+    }
+
+    public DisposingPolicy(int maxQueueLength) {
+        this.maxQueueLength = maxQueueLength;
+        this.disposerQueue = new ArrayDeque<>(maxQueueLength);
+        this.disposeTime = new TObjectLongHashMap<>(maxQueueLength);
+    }
+
+    public void setMaxQueueLength(int maxQueueLength) {
+        this.maxQueueLength = maxQueueLength;
+    }
+
     private void scheduleDispose() {
         currentlyScheduled = disposerQueue.peekFirst();
         long delay = Math.max(
@@ -43,35 +54,35 @@ public class DisposingPolicy {
                 MIN_DELAY);
         Display.getCurrent().timerExec((int)delay, disposeOne);
         if(DEBUG)
-            System.out.println("Scheduled disposer " + currentlyScheduled + " in " + delay + " ms");
+            System.out.println("Scheduled disposer " + currentlyScheduled + " in " + delay + " ms"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
     }
-    
+
     /**
      * Runs the disposer either after DISPOSE_TIME or when there are
-     * more than MAX_QUEUE_LENGTH disposers active and this is first
+     * more than {@link #maxQueueLength} disposers active and this is first
      * of them (by activation order). This method must be called from
      * UI thread.
      */
     public void addDisposer(Runnable disposer) {
         if(DEBUG)
-            System.out.println("Added disposer " + disposer);
+            System.out.println("Added disposer " + disposer); //$NON-NLS-1$
         if(disposeTime.contains(disposer))
             return;
-        if(disposerQueue.size() >= MAX_QUEUE_LENGTH)
+        if(disposerQueue.size() >= maxQueueLength)
             disposeOne.run();
         disposerQueue.addLast(disposer);
         disposeTime.put(disposer, System.currentTimeMillis()+DISPOSE_TIME);
         if(disposerQueue.size() == 1)
             scheduleDispose();
     }
-    
+
     /**
      * Cancels a disposer added before. This method must be called from
      * UI thread.
      */
     public void removeDisposer(Runnable disposer) {
         if(DEBUG)
-            System.out.println("Removed disposer " + disposer);
+            System.out.println("Removed disposer " + disposer); //$NON-NLS-1$
         disposerQueue.remove(disposer);
         disposeTime.remove(disposer);
         if(disposer == currentlyScheduled) {
@@ -80,5 +91,5 @@ public class DisposingPolicy {
                 scheduleDispose();
         }
     }
-    
+
 }