Handiling the null pointer exception in property row mapper

propertytax/pt-property/src/main/java/org/egov/property/model/PropertyLocationRowMapper.java

@@ -2,35 +2,61 @@
 
 import java.sql.ResultSet;
 import java.sql.SQLException;
-
 import org.egov.models.Boundary;
 import org.egov.models.PropertyLocation;
 import org.springframework.jdbc.core.RowMapper;
 
+/**
+ * This class will create property location object from the given result set
+ * 
+ * @author prasad
+ *
+ */
 public class PropertyLocationRowMapper implements RowMapper<Object> {
 
 	@Override
 	public Object mapRow(ResultSet rs, int rowNum) throws SQLException {
-	
+
 		PropertyLocation propertyLocation = new PropertyLocation();
-
-
-		propertyLocation.setId(Long.valueOf(rs.getInt("id")));
+
+		propertyLocation.setId(getLong(rs.getInt("id")));
 		Boundary boundary = new Boundary();
-		boundary.setId(Long.valueOf(rs.getInt("revenueboundary")));
+		boundary.setId(getLong(rs.getInt("revenueboundary")));
 		propertyLocation.setRevenueBoundary(boundary);
 		boundary = new Boundary();
-		boundary.setId(Long.valueOf(rs.getInt("locationboundary")));
+		boundary.setId(getLong(rs.getInt("locationboundary")));
 		propertyLocation.setLocationBoundary(boundary);
 		boundary = new Boundary();
-		boundary.setId(Long.valueOf(rs.getInt("adminboundary")));
+		boundary.setId(getLong(rs.getInt("adminboundary")));
 		propertyLocation.setAdminBoundary(boundary);
-		propertyLocation.setNorthBoundedBy(rs.getString("northboundedby"));
-		propertyLocation.setEastBoundedBy(rs.getString("eastboundedby"));
-		propertyLocation.setWestBoundedBy(rs.getString("westboundedby"));
+		propertyLocation.setNorthBoundedBy(getString(rs.getString("northboundedby")));
+		propertyLocation.setEastBoundedBy(getString(rs.getString("eastboundedby")));
+		propertyLocation.setWestBoundedBy(getString(rs.getString("westboundedby")));
 		propertyLocation.setSouthBoundedBy("southboundedby");
-		
+
 		return propertyLocation;
 	}
 
+	/**
+	 * This method will cast the given object to String
+	 * 
+	 * @param object
+	 *            that need to be cast to string
+	 * @return {@link String}
+	 */
+	private String getString(Object object) {
+		return object == null ? "" : object.toString().trim();
+	}
+
+	/**
+	 * This method will cast the given object to Long
+	 * 
+	 * @param object
+	 *            that need to be cast to Long
+	 * @return {@link Long}
+	 */
+	private Long getLong(Object object) {
+		return object == null ? 0l : Long.parseLong(object.toString().trim());
+	}
+
 }