[GitHub] [incubator-shardingsphere] lonyee1989 commented on issue #3203: sharding is not support LocalDateTime type field

[GitBox]

lonyee1989 commented on issue #3203: sharding is not support LocalDateTime type 
field
URL: 
https://github.com/apache/incubator-shardingsphere/issues/3203#issuecomment-540498934
 
 
   @terrymanu shardingsphere defaulf jdk version is 1.7
   
   I've extended this feature on fork and upgraded the JDK to 1.8 for 
functionality.
   
   `4.0.0-RC2-1.8`
   https://github.com/lonyee1989/incubator-shardingsphere/tree/4.0.0-RC2-1.8
   
   _Mybatis 5+ is mainly supported_
   
   `The implementation code`
   
   1. package org.apache.shardingsphere.shardingjdbc.jdbc.core.resultset;
   ```java
       /**
        * Convert value via expected class type.
        * 
        * @param value original value
        * @param convertType expected class type
        * @return converted value
        */
       public static Object convertValue(final Object value, final Class<?> 
convertType) {
           if (null == value) {
               return convertNullValue(convertType);
           } 
           if (value.getClass() == convertType) {
               return value;
           }
           if (LocalDateTime.class.equals(convertType)) {
               return convertLocalDateTimeValue(value, convertType);
           }
           if (LocalDate.class.equals(convertType)) {
               return convertLocalDateValue(value, convertType);
           }
           if (LocalTime.class.equals(convertType)) {
               return convertLocalTimeValue(value, convertType);
           }
   
   
           if (value instanceof Number) {
               return convertNumberValue(value, convertType);
           }
           if (value instanceof Date) {
               return convertDateValue(value, convertType);
           }
           if (value instanceof byte[]) {
               return convertByteArrayValue(value, convertType);
           }
           if (String.class.equals(convertType)) {
               return value.toString();
           } else {
               return value;
           }
       }
   
     ......
   
     private static Object convertLocalDateTimeValue(final Object value, final 
Class<?> convertType) {
           Timestamp timestamp = (Timestamp) value;
           return timestamp.toLocalDateTime();
       }
   
       private static Object convertLocalDateValue(final Object value, final 
Class<?> convertType) {
           Timestamp timestamp = (Timestamp) value;
           return timestamp.toLocalDateTime().toLocalDate();
       }
   
       private static Object convertLocalTimeValue(final Object value, final 
Class<?> convertType) {
           Timestamp timestamp = (Timestamp) value;
           return timestamp.toLocalDateTime().toLocalTime();
       }
   
   ```
   
   2. package org.apache.shardingsphere.shardingjdbc.jdbc.core.resultset;
   ```java
       @Override
       public <T> T getObject(final int columnIndex, final Class<T> type) 
throws SQLException {
           if (LocalDateTime.class.equals(type) || LocalDate.class.equals(type) 
|| LocalTime.class.equals(type)) {
               return (T) 
ResultSetUtil.convertValue(mergeResultSet.getValue(columnIndex, 
Timestamp.class), type);
           }
           throw new SQLFeatureNotSupportedException("getObject with type");
       }
   
       @Override
       public <T> T getObject(final String columnLabel, final Class<T> type) 
throws SQLException {
           if (LocalDateTime.class.equals(type) || LocalDate.class.equals(type) 
|| LocalTime.class.equals(type)) {
               return (T) 
ResultSetUtil.convertValue(mergeResultSet.getValue(columnLabel, 
Timestamp.class), type);
           }
           throw new SQLFeatureNotSupportedException("getObject with type");
       }
   
   ```
   
   3. package org.apache.shardingsphere.shardingjdbc.jdbc.core.resultset;
   ```java
       @Override
       public <T> T getObject(final int columnIndex, final Class<T> type) 
throws SQLException {
           if (LocalDateTime.class.equals(type) || LocalDate.class.equals(type) 
|| LocalTime.class.equals(type)) {
               return (T) 
ResultSetUtil.convertValue(resultSet.getValue(columnIndex, Timestamp.class), 
type);
           }
           throw new SQLFeatureNotSupportedException("getObject with type");
       }
   
       @Override
       public <T> T getObject(final String columnLabel, final Class<T> type) 
throws SQLException {
           if (LocalDateTime.class.equals(type) || LocalDate.class.equals(type) 
|| LocalTime.class.equals(type)) {
               return (T) 
ResultSetUtil.convertValue(resultSet.getValue(columnLabel, Timestamp.class), 
type);
           }
           throw new SQLFeatureNotSupportedException("getObject with type");
       }
   
   ```
   
   4. package org.apache.shardingsphere.shardingjdbc.jdbc.unsupported;
   ```java
       @Override
       public <T> T getObject(final int columnIndex, final Class<T> type) 
throws SQLException {
           throw new SQLFeatureNotSupportedException("getObject with type");
       }
       
       @Override
       public <T> T getObject(final String columnLabel, final Class<T> type) 
throws SQLException {
           throw new SQLFeatureNotSupportedException("getObject with type");
       }
   ```
   
   
   

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