modify xml reader

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/tools@191751 a5903396-d722-0410-b921-86c7d4935375
modify InputDataReaderAdapter

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/tools@191752 a5903396-d722-0410-b921-86c7d4935375
modify AvroWrapper

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/tools@191753 a5903396-d722-0410-b921-86c7d4935375
modify mapping core

git-svn-id: https://svn.wso2.org/repos/wso2/trunk/tools@191754 a5903396-d722-0410-b921-86c7d4935375