frankgh commented on code in PR #45:
URL: 
https://github.com/apache/cassandra-analytics/pull/45#discussion_r1541520438


##########
cassandra-analytics-core/src/test/java/org/apache/cassandra/spark/bulkwriter/MockBulkWriterContext.java:
##########
@@ -77,6 +79,7 @@ public class MockBulkWriterContext implements 
BulkWriterContext, ClusterInfo, Jo
     private ConsistencyLevel.CL consistencyLevel;
     private int sstableDataSizeInMB = 128;
     private int sstableWriteBatchSize = 2;
+    private CassandraBridge bridge = 
CassandraBridgeFactory.get(CassandraVersion.FOURZERO);

Review Comment:
   should this be passed to the mock BW context? I wonder what tests for 50, 51 
will look like if we use 40 here always?



##########
cassandra-bridge/src/main/java/org/apache/cassandra/spark/data/BridgeUdtValue.java:
##########
@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.cassandra.spark.data;
+
+import java.io.Serializable;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * The BridgeUdtValue class exists because the Cassandra values produced 
(UDTValue) are not serializable
+ * because they come from the classloader inside the bridge, and therefore 
can't be passed around
+ * from one Spark phase to another. Therefore, we build a map of these 
instances (potentially nested)
+ * and return them from the conversion stage for later use when the writer 
actually writes them.
+ */
+public class BridgeUdtValue implements Serializable
+{
+    public final String name;
+    public final Map<String, Object> udtMap;
+
+    public BridgeUdtValue(String name, Map<String, Object> valueMap)
+    {
+        this.name = name;
+        this.udtMap = valueMap;
+    }
+
+    public boolean equals(Object o)
+    {
+        if (this == o)
+        {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass())
+        {
+            return false;
+        }
+        BridgeUdtValue udtValue = (BridgeUdtValue) o;
+        return Objects.equals(name, udtValue.name) && Objects.equals(udtMap, 
udtValue.udtMap);
+    }
+
+    public int hashCode()

Review Comment:
   NIT, override annotation



##########
cassandra-bridge/src/main/java/org/apache/cassandra/spark/data/BridgeUdtValue.java:
##########
@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.cassandra.spark.data;
+
+import java.io.Serializable;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * The BridgeUdtValue class exists because the Cassandra values produced 
(UDTValue) are not serializable
+ * because they come from the classloader inside the bridge, and therefore 
can't be passed around
+ * from one Spark phase to another. Therefore, we build a map of these 
instances (potentially nested)
+ * and return them from the conversion stage for later use when the writer 
actually writes them.
+ */
+public class BridgeUdtValue implements Serializable
+{
+    public final String name;
+    public final Map<String, Object> udtMap;
+
+    public BridgeUdtValue(String name, Map<String, Object> valueMap)
+    {
+        this.name = name;
+        this.udtMap = valueMap;
+    }
+
+    public boolean equals(Object o)
+    {
+        if (this == o)
+        {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass())
+        {
+            return false;
+        }
+        BridgeUdtValue udtValue = (BridgeUdtValue) o;
+        return Objects.equals(name, udtValue.name) && Objects.equals(udtMap, 
udtValue.udtMap);
+    }
+
+    public int hashCode()
+    {
+        return Objects.hash(name, udtMap);
+    }
+
+    public String toString()

Review Comment:
   NIT, override annotation



##########
cassandra-bridge/src/main/java/org/apache/cassandra/spark/data/BridgeUdtValue.java:
##########
@@ -0,0 +1,69 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.cassandra.spark.data;
+
+import java.io.Serializable;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * The BridgeUdtValue class exists because the Cassandra values produced 
(UDTValue) are not serializable
+ * because they come from the classloader inside the bridge, and therefore 
can't be passed around
+ * from one Spark phase to another. Therefore, we build a map of these 
instances (potentially nested)
+ * and return them from the conversion stage for later use when the writer 
actually writes them.
+ */
+public class BridgeUdtValue implements Serializable
+{
+    public final String name;
+    public final Map<String, Object> udtMap;
+
+    public BridgeUdtValue(String name, Map<String, Object> valueMap)
+    {
+        this.name = name;
+        this.udtMap = valueMap;
+    }
+
+    public boolean equals(Object o)

Review Comment:
   NIT, override annotation



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