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https://issues.apache.org/jira/browse/TAJO-1122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14224216#comment-14224216
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ASF GitHub Bot commented on TAJO-1122:
--------------------------------------
Github user hyunsik commented on a diff in the pull request:
https://github.com/apache/tajo/pull/247#discussion_r20848470
--- Diff:
tajo-storage/tajo-storage-common/src/main/java/org/apache/tajo/storage/StorageManager.java
---
@@ -22,28 +22,35 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.*;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
import org.apache.tajo.*;
-import org.apache.tajo.catalog.*;
+import org.apache.tajo.catalog.Schema;
+import org.apache.tajo.catalog.SortSpec;
+import org.apache.tajo.catalog.TableDesc;
+import org.apache.tajo.catalog.TableMeta;
import org.apache.tajo.catalog.proto.CatalogProtos;
import org.apache.tajo.catalog.proto.CatalogProtos.FragmentProto;
import org.apache.tajo.catalog.proto.CatalogProtos.StoreType;
import org.apache.tajo.conf.TajoConf;
import org.apache.tajo.conf.TajoConf.ConfVars;
import org.apache.tajo.plan.LogicalPlan;
-import org.apache.tajo.plan.logical.*;
+import org.apache.tajo.plan.logical.LogicalNode;
+import org.apache.tajo.plan.logical.NodeType;
+import org.apache.tajo.plan.logical.ScanNode;
import org.apache.tajo.plan.rewrite.RewriteRule;
-import org.apache.tajo.storage.fragment.FileFragment;
import org.apache.tajo.storage.fragment.Fragment;
import org.apache.tajo.storage.fragment.FragmentConvertor;
-import org.apache.tajo.storage.hbase.HBaseStorageManager;
import org.apache.tajo.util.TUtil;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.net.URI;
import java.text.NumberFormat;
-import java.util.*;
+import java.util.HashMap;
--- End diff --
It is not unused.
> Refactor the tajo-storage project structure.
> --------------------------------------------
>
> Key: TAJO-1122
> URL: https://issues.apache.org/jira/browse/TAJO-1122
> Project: Tajo
> Issue Type: Sub-task
> Reporter: Hyoungjun Kim
> Assignee: Hyoungjun Kim
> Priority: Minor
>
> 'tajo-storage' sub-project will be changed to the following structure which
> is more flexible for adding new storage.
> {noformat}
> tajo-storage
> tajo-storage-common
> src
> pom.xml
> tajo-external-storage
> tajo-hbase
> src
> pom.xml
> tajo-<other storage>
> src
> pom.xml
> pom.xml
> pom.xml
> {noformat}
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