diff --git a/pom.xml b/pom.xml
index 339ed56..b60145e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,7 +13,7 @@
     <groupId>com.loafle.overflow</groupId>
     <artifactId>commons-java</artifactId>
     <packaging>jar</packaging>
-    <version>1.0.118-SNAPSHOT</version>
+    <version>1.0.119-SNAPSHOT</version>
     <name>com.loafle.overflow.commons-java</name>
 
     <properties>
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/SensorConfig.java b/src/main/java/com/loafle/overflow/model/sensorconfig/SensorConfig.java
index a074c3b..babafef 100644
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/SensorConfig.java
+++ b/src/main/java/com/loafle/overflow/model/sensorconfig/SensorConfig.java
@@ -1,5 +1,9 @@
 package com.loafle.overflow.model.sensorconfig;
 
+import java.util.List;
+
+import com.loafle.overflow.model.meta.MetaCollectionItem;
+
 public class SensorConfig {
 
   private Long sensorID;
@@ -7,7 +11,8 @@ public class SensorConfig {
   private SensorConfigSchedule schedule;
   private SensorConfigCrawler crawler;
   private SensorConfigConnection connection;
-  private SensorConfigItems items;
+
+  private List<MetaCollectionItem> metaCollectionItems;
 
   public Long getSensorID() {
     return sensorID;
@@ -41,11 +46,12 @@ public class SensorConfig {
     this.connection = connection;
   }
 
-  public SensorConfigItems getItems() {
-    return items;
+  public List<MetaCollectionItem> getMetaCollectionItems() {
+    return metaCollectionItems;
   }
 
-  public void setItems(SensorConfigItems items) {
-    this.items = items;
+  public void setMetaCollectionItems(List<MetaCollectionItem> metaCollectionItems) {
+    this.metaCollectionItems = metaCollectionItems;
   }
+
 }
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/SensorConfigItems.java b/src/main/java/com/loafle/overflow/model/sensorconfig/SensorConfigItems.java
deleted file mode 100644
index 215be58..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/SensorConfigItems.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.loafle.overflow.model.sensorconfig;
-
-import java.util.List;
-
-import com.loafle.overflow.model.meta.MetaCollectionItem;
-
-public class SensorConfigItems {
-  private List<MetaCollectionItem> metaCollectionItems;
-
-  public List<MetaCollectionItem> getMetaCollectionItems() {
-    return metaCollectionItems;
-  }
-
-  public void setMetaCollectionItems(List<MetaCollectionItem> metaCollectionItems) {
-    this.metaCollectionItems = metaCollectionItems;
-  }
-}
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Connection.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/Connection.java
deleted file mode 100644
index 8b30581..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Connection.java
+++ /dev/null
@@ -1,74 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-import com.loafle.overflow.model.meta.MetaCryptoType;
-import com.loafle.overflow.model.meta.MetaIPType;
-import com.loafle.overflow.model.meta.MetaPortType;
-
-/**
- * Connection
- */
-public class Connection {
-  private MetaIPType metaIPType;
-  private String ip;
-  private MetaPortType metaPortType;
-  private Integer port;
-  private MetaCryptoType metaCryptoType;
-
-  public String getIp() {
-    return ip;
-  }
-
-  public void setIp(String ip) {
-    this.ip = ip;
-  }
-
-  public Integer getPort() {
-    return port;
-  }
-
-  public void setPort(Integer port) {
-    this.port = port;
-  }
-
-  /**
-   * @return the metaPortType
-   */
-  public MetaPortType getMetaPortType() {
-    return metaPortType;
-  }
-
-  /**
-   * @param metaPortType the metaPortType to set
-   */
-  public void setMetaPortType(MetaPortType metaPortType) {
-    this.metaPortType = metaPortType;
-  }
-
-  /**
-   * @return the metaIPType
-   */
-  public MetaIPType getMetaIPType() {
-    return metaIPType;
-  }
-
-  /**
-   * @param metaIPType the metaIPType to set
-   */
-  public void setMetaIPType(MetaIPType metaIPType) {
-    this.metaIPType = metaIPType;
-  }
-
-  /**
-   * @return the metaCryptoType
-   */
-  public MetaCryptoType getMetaCryptoType() {
-    return metaCryptoType;
-  }
-
-  /**
-   * @param metaCryptoType the metaCryptoType to set
-   */
-  public void setMetaCryptoType(MetaCryptoType metaCryptoType) {
-    this.metaCryptoType = metaCryptoType;
-  }
-}
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Crawler.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/Crawler.java
deleted file mode 100644
index 2a635eb..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Crawler.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-/**
- * Crawler
- */
-public class Crawler {
-  private String name;
-  private String container;
-
-  public String getName() {
-    return name;
-  }
-
-  public void setName(String name) {
-    this.name = name;
-  }
-
-  public String getContainer() {
-    return container;
-  }
-
-  public void setContainer(String container) {
-    this.container = container;
-  }
-}
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Item.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/Item.java
deleted file mode 100644
index 866ab3f..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Item.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-import java.util.List;
-
-/**
- * Item
- */
-public class Item {
-  private List<Keys> keys;
-  private QueryInfo queryInfo;
-  private MappingInfo mappingInfo;
-
-  public List<Keys> getKeys() {
-    return keys;
-  }
-
-  public void setKeys(List<Keys> keys) {
-    this.keys = keys;
-  }
-
-  public QueryInfo getQueryInfo() {
-    return queryInfo;
-  }
-
-  public void setQueryInfo(QueryInfo queryInfo) {
-    this.queryInfo = queryInfo;
-  }
-
-  public MappingInfo getMappingInfo() {
-    return mappingInfo;
-  }
-
-  public void setMappingInfo(MappingInfo mappingInfo) {
-    this.mappingInfo = mappingInfo;
-  }
-
-}
\ No newline at end of file
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Keys.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/Keys.java
deleted file mode 100644
index 402ebb1..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Keys.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * Keys
- */
-public class Keys {
-  private String metric;
-  private String key;
-
-  public String getMetric() {
-    return metric;
-  }
-
-  public void setMetric(String metric) {
-    this.metric = metric;
-  }
-
-  public String getKey() {
-    return key;
-  }
-
-  public void setKey(String key) {
-    this.key = key;
-  }
-
-  public static Map<String, String> keysToMap(Keys[] keys) {
-    Map<String, String> map = new HashMap<>();
-    for (Keys k : keys) {
-      map.put(k.key, k.metric);
-    }
-    return map;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/MappingInfo.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/MappingInfo.java
deleted file mode 100644
index 001db13..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/MappingInfo.java
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-import java.util.List;
-
-/**
- * MappingInfo
- */
-public class MappingInfo {
-  private String parseDirection;
-  private List<String> arrayColumns;
-  private List<String> keyColumns;
-  private String valueColumn;
-
-  public String getParseDirection() {
-    return parseDirection;
-  }
-
-  public void setParseDirection(String parseDirection) {
-    this.parseDirection = parseDirection;
-  }
-
-  public List<String> getArrayColumns() {
-    return arrayColumns;
-  }
-
-  public void setArrayColumns(List<String> arrayColumns) {
-    this.arrayColumns = arrayColumns;
-  }
-
-  public List<String> getKeyColumns() {
-    return keyColumns;
-  }
-
-  public void setKeyColumns(List<String> keyColumns) {
-    this.keyColumns = keyColumns;
-  }
-
-  public String getValueColumn() {
-    return valueColumn;
-  }
-
-  public void setValueColumn(String valueColumn) {
-    this.valueColumn = valueColumn;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/QueryInfo.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/QueryInfo.java
deleted file mode 100644
index 83dae00..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/QueryInfo.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-import java.util.Map;
-
-/**
- * QueryInfo
- */
-public class QueryInfo {
-  private String query;
-  private Map<String, Object> extend;
-
-  public String getQuery() {
-    return query;
-  }
-
-  public void setQuery(String query) {
-    this.query = query;
-  }
-
-  public Map<String, Object> getExtend() {
-    return extend;
-  }
-
-  public void setExtend(Map<String, Object> extend) {
-    this.extend = extend;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/ResultSet.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/ResultSet.java
deleted file mode 100644
index 36e406c..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/ResultSet.java
+++ /dev/null
@@ -1,71 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-/**
- * ResultSet
- */
-public abstract class ResultSet {
-  protected Item item;
-  protected List<List<String>> rows;
-  protected Map<String, Integer> meta;
-
-  // methods
-  public static ResultSet newInstance(Item item) {
-    if (item.getMappingInfo() == null) {
-      item.setMappingInfo(new MappingInfo());
-    }
-    String type = (String) item.getMappingInfo().getParseDirection();
-    if (type != null && type.equals("row")) {
-      return new ResultSetRow(item);
-    } else {
-      return new ResultSetCol(item);
-    }
-  }
-
-  public ResultSet(Item item) {
-    this.item = item;
-    this.rows = new ArrayList<>();
-    this.setMeta();
-  }
-
-  public void addRow(List<String> row) {
-    rows.add(row);
-  }
-
-  public List<List<String>> getRows() {
-    return rows;
-  }
-
-  public void setRows(List<List<String>> rows) {
-    this.rows = rows;
-  }
-
-  public Map<String, Integer> getMeta() {
-    return meta;
-  }
-
-  public void setMeta(Map<String, Integer> meta) {
-    this.meta = meta;
-  }
-
-  public Item getItem() {
-    return item;
-  }
-
-  public void setItem(Item item) {
-    this.item = item;
-  }
-
-  public Map<String, String> getData() {
-    return parse();
-  }
-
-  // abstracts
-  public abstract void setMeta();
-
-  public abstract Map<String, String> parse();
-
-}
\ No newline at end of file
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/ResultSetCol.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/ResultSetCol.java
deleted file mode 100644
index 687d510..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/ResultSetCol.java
+++ /dev/null
@@ -1,102 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-/**
- * ResultSetCol
- */
-public class ResultSetCol extends ResultSet {
-
-  public ResultSetCol(Item item) {
-    super(item);
-  }
-
-  public void setMeta() {
-    List<Keys> meta = this.item.getKeys();
-    List<String> arrayColumns = this.item.getMappingInfo().getArrayColumns();
-
-    if (this.meta == null) {
-      this.meta = new HashMap<>();
-    }
-
-    for (int indexI = 0; indexI < meta.size(); ++indexI) {
-      this.meta.put(meta.get(indexI).getKey(), indexI);
-    }
-
-    if (arrayColumns != null) {
-      for (int indexI = 0; indexI < arrayColumns.size(); ++indexI) {
-        if (this.meta.containsKey(arrayColumns.get(indexI))) {
-          continue;
-        }
-        this.meta.put(arrayColumns.get(indexI), indexI + meta.size());
-      }
-    }
-
-  }
-
-  public Map<String, String> parse() {
-
-    List<Keys> metrics = this.item.getKeys();
-    List<String> arrayColumns = this.item.getMappingInfo().getArrayColumns();
-
-    Map<String, String> resultMap = new HashMap<>();
-
-    List<String> row = null;
-
-    String metric = null;
-    List<String> arrayValue = new ArrayList<>();
-
-    int columnIdx = 0;
-
-    for (int indexI = 0; indexI < this.rows.size(); ++indexI) {
-
-      row = this.rows.get(indexI);
-      for (int indexJ = 0; indexJ < row.size(); ++indexJ) {
-
-        arrayValue.clear();
-
-        if (arrayColumns != null) {
-          for (int indexL = 0; indexL < arrayColumns.size(); ++indexL) {
-            columnIdx = this.meta.get(arrayColumns.get(indexL));
-
-            arrayValue.add(row.get(columnIdx));
-          }
-        }
-
-        for (int indexK = 0; indexK < metrics.size(); ++indexK) {
-          metric = metrics.get(indexK).getMetric();
-          metric = convertMetric(metric, arrayValue);
-          resultMap.put(metric, row.get(indexK));
-        }
-
-      }
-
-    }
-
-    return resultMap;
-
-  }
-
-  private String convertMetric(String metric, List<String> arrayValue) {
-
-    if (arrayValue == null || arrayValue.size() <= 0) {
-      return metric;
-    }
-
-    String convertChar = "$";
-    String convertStr = null;
-
-    for (int indexI = 0; indexI < arrayValue.size(); ++indexI) {
-
-      convertStr = convertChar + String.valueOf(indexI);
-
-      metric = metric.replace(convertStr, arrayValue.get(indexI));
-
-    }
-
-    return metric;
-  }
-}
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/ResultSetRow.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/ResultSetRow.java
deleted file mode 100644
index 4449fee..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/ResultSetRow.java
+++ /dev/null
@@ -1,107 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-/**
- * ResultSetRow
- */
-public class ResultSetRow extends ResultSet {
-
-  public ResultSetRow(Item item) {
-    super(item);
-  }
-
-  public void setMeta() {
-
-    List<String> meta = new ArrayList<>();
-
-    List<String> arrayColumns = (List<String>) this.item.getMappingInfo().getArrayColumns();
-    List<String> keyColumns = (List<String>) this.item.getMappingInfo().getKeyColumns();
-    String valueColumn = (String) this.item.getMappingInfo().getValueColumn();
-    if (arrayColumns != null) {
-      for (String c : arrayColumns) {
-        meta.add(c);
-      }
-    }
-
-    if (keyColumns != null) {
-      for (String c : keyColumns) {
-        meta.add(c);
-      }
-    }
-
-    if (valueColumn != null && !valueColumn.equals(""))
-      meta.add(valueColumn);
-
-    if (this.meta == null) {
-      this.meta = new HashMap<>();
-    }
-
-    for (int indexI = 0; indexI < meta.size(); ++indexI) {
-      this.meta.put(meta.get(indexI), indexI);
-    }
-
-  }
-
-  public Map<String, String> parse() {
-
-    Map<String, String> returnMap = new HashMap<>();
-
-    String valueColumn = (String) this.item.getMappingInfo().getValueColumn();
-
-    for (List<String> row : this.rows) {
-      String key = makeKey(row);
-      if (key == null)
-        continue;
-      returnMap.put(key, row.get(this.meta.get(valueColumn)));
-    }
-
-    return returnMap;
-  }
-
-  private String makeKey(List<String> data) {
-
-    List<Keys> metrics = this.item.getKeys();
-
-    List<String> arrayColumns = (List<String>) this.item.getMappingInfo().getArrayColumns();
-    List<String> keyColumns = (List<String>) this.item.getMappingInfo().getKeyColumns();
-    List<Keys> keys = this.item.getKeys();
-
-    boolean find = false;
-    int findIndex = -1;
-    for (String keyColumn : keyColumns) {
-      String row = data.get(this.meta.get(keyColumn));
-      for (int i = 0; i < keys.size(); ++i) {
-        if (row.equals(keys.get(i).getKey())) {
-          findIndex = i;
-          find = true;
-          break;
-        }
-      }
-      if (find == true) {
-        break;
-      }
-    }
-
-    if (findIndex < 0) {
-      return null;
-    }
-
-    String metric = metrics.get(findIndex).getMetric();
-
-    if (arrayColumns != null) {
-      for (int i = 0; i < arrayColumns.size(); ++i) {
-        // replace
-        String k = "$" + i;
-        int dataIndex = this.meta.get(arrayColumns.get(i));
-        String replaceString = data.get(dataIndex);
-        metric = metric.replace(k, "'" + replaceString + "'");
-      }
-    }
-    return metric;
-  }
-
-}
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Schedule.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/Schedule.java
deleted file mode 100644
index d39bebd..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Schedule.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-/**
- * Schedule
- */
-public class Schedule {
-  private String interval;
-
-  public String getInterval() {
-    return interval;
-  }
-
-  public void setInterval(String interval) {
-    this.interval = interval;
-  }
-}
\ No newline at end of file
diff --git a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Target.java b/src/main/java/com/loafle/overflow/model/sensorconfig/old/Target.java
deleted file mode 100644
index 65d89e7..0000000
--- a/src/main/java/com/loafle/overflow/model/sensorconfig/old/Target.java
+++ /dev/null
@@ -1,8 +0,0 @@
-package com.loafle.overflow.model.sensorconfig.old;
-
-public class Target {
-  // private Map<String, Object> auth;
-  // private Connection connection;
-  // private Map<String, Object> meta;
-
-}
\ No newline at end of file