X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Fprocedure%2Fguarded%2FGuardedAsyncProcedureWrapper.java;h=acd7f311fb011872df886b81ecfec99db2bcd96f;hp=5fd1f70a683b37889445909935be4c85e72403e3;hb=refs%2Fchanges%2F38%2F238%2F2;hpb=24e2b34260f219f0d1644ca7a138894980e25b14

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/guarded/GuardedAsyncProcedureWrapper.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/guarded/GuardedAsyncProcedureWrapper.java
index 5fd1f70a6..acd7f311f 100644
--- a/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/guarded/GuardedAsyncProcedureWrapper.java
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/procedure/guarded/GuardedAsyncProcedureWrapper.java
@@ -1,63 +1,63 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management
- * in Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- *     VTT Technical Research Centre of Finland - initial API and implementation
- *******************************************************************************/
-package org.simantics.db.common.procedure.guarded;
-
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.atomic.AtomicInteger;
-
-import org.simantics.db.AsyncReadGraph;
-import org.simantics.db.common.procedure.adapter.AsyncProcedureAdapter;
-import org.simantics.db.procedure.AsyncProcedure;
-import org.simantics.db.procedure.Procedure;
-
-/**
- * An asynchronous database callback procedure that is guarded against multiple
- * invocations to {@link Procedure#execute(Object)} and
- * {@link Procedure#exception(Throwable)}. Only the first invocation of is
- * delegated or the Nth invocation to {@link Procedure#execute(Object)} where
- * Nth is <code>expectedResults</code>.
- * 
- * @author Tuukka Lehtonen
- * 
- * @param <T>
- */
-public class GuardedAsyncProcedureWrapper<T> extends AsyncProcedureAdapter<T> {
-
-    private final AsyncProcedure<T> procedure;
-    private final AtomicBoolean     onceGuard = new AtomicBoolean(false);
-    private final AtomicInteger     resultCounter;
-
-    public GuardedAsyncProcedureWrapper(AsyncProcedure<T> procedure, int expectedResults) {
-        this.procedure = procedure;
-        this.resultCounter = new AtomicInteger(expectedResults);
-    }
-
-    @Override
-    public void exception(AsyncReadGraph graph, Throwable t) {
-        if (onceGuard.compareAndSet(false, true)) {
-            procedure.exception(graph, t);
-        }
-    }
-
-    @Override
-    public void execute(AsyncReadGraph graph, T result) {
-        int count = resultCounter.decrementAndGet();
-        if (count == 0) {
-            if (onceGuard.compareAndSet(false, true)) {
-                procedure.execute(graph, result);
-            }
-        } else if (count < 0) {
-            System.out.println(this + ": execute invoked more than expected (count=" + count + ", procedure=" + procedure + ")");
-        }
-    }
-
-}
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.common.procedure.guarded;
+
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.common.procedure.adapter.AsyncProcedureAdapter;
+import org.simantics.db.procedure.AsyncProcedure;
+import org.simantics.db.procedure.Procedure;
+
+/**
+ * An asynchronous database callback procedure that is guarded against multiple
+ * invocations to {@link Procedure#execute(Object)} and
+ * {@link Procedure#exception(Throwable)}. Only the first invocation of is
+ * delegated or the Nth invocation to {@link Procedure#execute(Object)} where
+ * Nth is <code>expectedResults</code>.
+ * 
+ * @author Tuukka Lehtonen
+ * 
+ * @param <T>
+ */
+public class GuardedAsyncProcedureWrapper<T> extends AsyncProcedureAdapter<T> {
+
+    private final AsyncProcedure<T> procedure;
+    private final AtomicBoolean     onceGuard = new AtomicBoolean(false);
+    private final AtomicInteger     resultCounter;
+
+    public GuardedAsyncProcedureWrapper(AsyncProcedure<T> procedure, int expectedResults) {
+        this.procedure = procedure;
+        this.resultCounter = new AtomicInteger(expectedResults);
+    }
+
+    @Override
+    public void exception(AsyncReadGraph graph, Throwable t) {
+        if (onceGuard.compareAndSet(false, true)) {
+            procedure.exception(graph, t);
+        }
+    }
+
+    @Override
+    public void execute(AsyncReadGraph graph, T result) {
+        int count = resultCounter.decrementAndGet();
+        if (count == 0) {
+            if (onceGuard.compareAndSet(false, true)) {
+                procedure.execute(graph, result);
+            }
+        } else if (count < 0) {
+            System.out.println(this + ": execute invoked more than expected (count=" + count + ", procedure=" + procedure + ")");
+        }
+    }
+
+}