commit fda3da1437b1576913a41b3e3165b84d472518b0
Author: Sébastien Jelsch <mustangore@gmail.com>
Date:   Wed Aug 12 18:15:09 2015 +0200

    KYLIN-945 Fix Exception when loading Connection from DataSource

diff --git a/jdbc/src/main/java/org/apache/kylin/jdbc/KylinConnection.java b/jdbc/src/main/java/org/apache/kylin/jdbc/KylinConnection.java
index 8c53e60..d4f5337 100644
--- a/jdbc/src/main/java/org/apache/kylin/jdbc/KylinConnection.java
+++ b/jdbc/src/main/java/org/apache/kylin/jdbc/KylinConnection.java
@@ -31,6 +31,7 @@ import org.apache.calcite.avatica.AvaticaConnection;
 import org.apache.calcite.avatica.AvaticaParameter;
 import org.apache.calcite.avatica.AvaticaStatement;
 import org.apache.calcite.avatica.ColumnMetaData;
+import org.apache.calcite.avatica.ConnectionPropertiesImpl;
 import org.apache.calcite.avatica.Meta;
 import org.apache.calcite.avatica.Meta.CursorFactory;
 import org.apache.calcite.avatica.Meta.Signature;
@@ -80,6 +81,18 @@ public class KylinConnection extends AvaticaConnection {
     Properties getConnectionProperties() {
         return info;
     }
+    
+    public boolean getAutoCommit() throws SQLException {
+        if(meta.connectionSync(handle, new ConnectionPropertiesImpl()).isAutoCommit() == null)
+            setAutoCommit(true);
+        return super.getAutoCommit();
+    }
+
+    public boolean isReadOnly() throws SQLException {
+        if(meta.connectionSync(handle, new ConnectionPropertiesImpl()).isReadOnly() == null)
+            setReadOnly(true);
+        return super.isReadOnly();
+    }
 
     @Override
     public AvaticaStatement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {