Bug 1430: Off-load notifications from single commit thread

[controller.git] / opendaylight / md-sal / sal-inmemory-datastore / src / test / java / org / opendaylight / controller / md / sal / dom / store / impl / TestDCLExecutorService.java

diff --git a/opendaylight/md-sal/sal-inmemory-datastore/src/test/java/org/opendaylight/controller/md/sal/dom/store/impl/TestDCLExecutorService.java b/opendaylight/md-sal/sal-inmemory-datastore/src/test/java/org/opendaylight/controller/md/sal/dom/store/impl/TestDCLExecutorService.java
new file mode 100644 (file)
index 0000000..f6e6461
--- /dev/null
+++ b/opendaylight/md-sal/sal-inmemory-datastore/src/test/java/org/opendaylight/controller/md/sal/dom/store/impl/TestDCLExecutorService.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2014 Brocade Communications Systems, Inc. and others.  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
+ */
+
+package org.opendaylight.controller.md.sal.dom.store.impl;
+
+import java.util.concurrent.ExecutorService;
+
+import com.google.common.util.concurrent.ForwardingExecutorService;
+import com.google.common.util.concurrent.MoreExecutors;
+
+/**
+ * A forwarding Executor used by unit tests for DataChangeListener notifications
+ *
+ * @author Thomas Pantelis
+ */
+public class TestDCLExecutorService extends ForwardingExecutorService {
+
+    // Start with a same thread executor to avoid timing issues during test setup.
+    private volatile ExecutorService currentExecutor = MoreExecutors.sameThreadExecutor();
+
+    // The real executor to use when test setup is complete.
+    private final ExecutorService postSetupExecutor;
+
+
+    public TestDCLExecutorService( ExecutorService postSetupExecutor ) {
+        this.postSetupExecutor = postSetupExecutor;
+    }
+
+    @Override
+    protected ExecutorService delegate() {
+        return currentExecutor;
+    }
+
+    public void afterTestSetup() {
+        // Test setup complete - switch to the real executor.
+        currentExecutor = postSetupExecutor;
+    }
+}
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