Github user akumarb2010 commented on a diff in the pull request:
https://github.com/apache/drill/pull/1027#discussion_r151890105
--- Diff:
contrib/storage-kafka/src/main/java/org/apache/drill/exec/store/kafka/KafkaSubScan.java
---
@@ -0,0 +1,176 @@
+/*
+ * 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.drill.exec.store.kafka;
+
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+
+import org.apache.drill.common.exceptions.ExecutionSetupException;
+import org.apache.drill.common.expression.SchemaPath;
+import org.apache.drill.exec.physical.base.AbstractBase;
+import org.apache.drill.exec.physical.base.PhysicalOperator;
+import org.apache.drill.exec.physical.base.PhysicalVisitor;
+import org.apache.drill.exec.physical.base.SubScan;
+import org.apache.drill.exec.store.StoragePluginRegistry;
+
+import com.fasterxml.jackson.annotation.JacksonInject;
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import com.google.common.base.Preconditions;
+
+@JsonTypeName("kafka-partition-scan")
+public class KafkaSubScan extends AbstractBase implements SubScan {
+
+ @JsonProperty
+ private final KafkaStoragePluginConfig kafkStoragePluginConfig;
+
+ @JsonIgnore
+ private final KafkaStoragePlugin kafkaStoragePlugin;
+ private final List<SchemaPath> coulmns;
+ private final List<KafkaSubScanSpec> partitionSubScanSpecList;
+
+ @JsonCreator
+ public KafkaSubScan(@JacksonInject StoragePluginRegistry registry,
@JsonProperty("userName") String userName,
+ @JsonProperty("kafkStoragePluginConfig") KafkaStoragePluginConfig
kafkStoragePluginConfig,
--- End diff --
This is taken care.
---