cameronlee314 commented on a change in pull request #934: SAMZA-1935 : Refactor 
TaskContextImpl to not include access to objects that are only used internally
URL: https://github.com/apache/samza/pull/934#discussion_r261355687
 
 

 ##########
 File path: 
samza-core/src/main/java/org/apache/samza/operators/impl/OperatorImplGraph.java
 ##########
 @@ -24,38 +24,23 @@
 import org.apache.samza.config.Config;
 import org.apache.samza.config.StreamConfig;
 import org.apache.samza.context.Context;
+import org.apache.samza.context.JobContextMetadata;
 import org.apache.samza.context.TaskContextImpl;
 import org.apache.samza.job.model.JobModel;
 import org.apache.samza.operators.KV;
 import org.apache.samza.operators.OperatorSpecGraph;
 import org.apache.samza.operators.Scheduler;
 import org.apache.samza.operators.functions.JoinFunction;
 import org.apache.samza.operators.functions.PartialJoinFunction;
-import org.apache.samza.operators.spec.BroadcastOperatorSpec;
-import org.apache.samza.operators.spec.InputOperatorSpec;
-import org.apache.samza.operators.spec.JoinOperatorSpec;
-import org.apache.samza.operators.spec.OperatorSpec;
-import org.apache.samza.operators.spec.OutputOperatorSpec;
-import org.apache.samza.operators.spec.PartitionByOperatorSpec;
-import org.apache.samza.operators.spec.SendToTableOperatorSpec;
-import org.apache.samza.operators.spec.SinkOperatorSpec;
-import org.apache.samza.operators.spec.StreamOperatorSpec;
-import org.apache.samza.operators.spec.StreamTableJoinOperatorSpec;
-import org.apache.samza.operators.spec.WindowOperatorSpec;
+import org.apache.samza.operators.spec.*;
 import org.apache.samza.storage.kv.KeyValueStore;
 import org.apache.samza.system.SystemStream;
 import org.apache.samza.util.Clock;
 import org.apache.samza.util.TimestampedValue;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 
 Review comment:
   same as above about wildcard imports

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