Bug 2210: Fixed initial DCL notification on registration

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / test / java / org / opendaylight / controller / cluster / datastore / utils / MockDataChangeListener.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/utils/MockDataChangeListener.java b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/utils/MockDataChangeListener.java
new file mode 100644 (file)
index 0000000..f2f49d1
--- /dev/null
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/utils/MockDataChangeListener.java
@@ -0,0 +1,60 @@
+/*
+ * 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.cluster.datastore.utils;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import com.google.common.collect.Lists;
+import com.google.common.util.concurrent.Uninterruptibles;
+
+/**
+ * A mock DataChangeListener implementation.
+ *
+ * @author Thomas Pantelis
+ */
+public class MockDataChangeListener implements
+                         AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> {
+
+    private final List<AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>>>
+                                                               changeList = Lists.newArrayList();
+    private final CountDownLatch changeLatch;
+    private final int expChangeEventCount;
+
+    public MockDataChangeListener(int expChangeEventCount) {
+        changeLatch = new CountDownLatch(expChangeEventCount);
+        this.expChangeEventCount = expChangeEventCount;
+    }
+
+    @Override
+    public void onDataChanged(AsyncDataChangeEvent<YangInstanceIdentifier, NormalizedNode<?, ?>> change) {
+        changeList.add(change);
+        changeLatch.countDown();
+    }
+
+    public void waitForChangeEvents(YangInstanceIdentifier... expPaths) {
+        assertEquals("Change notifications complete", true,
+                Uninterruptibles.awaitUninterruptibly(changeLatch, 5, TimeUnit.SECONDS));
+
+        for(int i = 0; i < expPaths.length; i++) {
+            assertTrue(String.format("Change %d does not contain %s", (i+1), expPaths[i]),
+                    changeList.get(i).getCreatedData().containsKey(expPaths[i]));
+        }
+    }
+
+    public void expectNoMoreChanges(String assertMsg) {
+        Uninterruptibles.sleepUninterruptibly(1, TimeUnit.SECONDS);
+        assertEquals(assertMsg, expChangeEventCount, changeList.size());
+    }
+}