Android ดึงข้อมูลจาก webservice มาแล้วช่วยแนะนำวิธี parser หน่อยครับ

<PTT_DS>
    <DataAccess>
    <PRICE_DATE>2014-10-21T00:01:00+07:00</PRICE_DATE>
    <PRODUCT>Blue Gasoline 95</PRODUCT>
    <PRICE>42.86</PRICE>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2013-03-05T00:01:00+07:00</PRICE_DATE>
    <PRODUCT>Blue Gasoline 91</PRODUCT>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2014-10-15T05:00:00+07:00</PRICE_DATE>
    <PRODUCT>Blue Diesel</PRODUCT>
    <PRICE>29.39</PRICE>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2014-10-21T00:01:00+07:00</PRICE_DATE>
    <PRODUCT>Blue Gasohol 91</PRODUCT>
    <PRICE>33.78</PRICE>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2014-10-18T05:00:00+07:00</PRICE_DATE>
    <PRODUCT>Blue Gasohol E20</PRODUCT>
    <PRICE>32.48</PRICE>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2014-10-01T00:01:00+07:00</PRICE_DATE>
    <PRODUCT>เอ็นจีวี</PRODUCT>
    <PRICE>11.5</PRICE>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2014-10-21T00:01:00+07:00</PRICE_DATE>
    <PRODUCT>Blue Gasohol 95</PRODUCT>
    <PRICE>35.8</PRICE>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2009-10-01T05:00:00+07:00</PRICE_DATE>
    <PRODUCT>ดีเซลปาล์ม</PRODUCT>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2011-03-01T06:00:00+07:00</PRICE_DATE>
    <PRODUCT>Blue Diesel B5</PRODUCT>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2014-10-18T05:00:00+07:00</PRICE_DATE>
    <PRODUCT>Blue Gasohol E85</PRODUCT>
    <PRICE>22.88</PRICE>
    </DataAccess>
    <DataAccess>
    <PRICE_DATE>2014-10-15T05:00:00+07:00</PRICE_DATE>
    <PRODUCT>HyForce Premium Diesel</PRODUCT>
    <PRICE>32.39</PRICE>
    </DataAccess>
    </PTT_DS>