I have a log file that is around 300 MB of data having continours soap responses as shown below( I have attached only one sample SOAP). I would require to have the following extracted and written onto a new file.

timestamp
WebPartId
bus:block
bus:unblock
endptperation

Please help me.

<logRequest xmlns:wsse="http://docs.ddoasis-open.org/wss/2004/01/oasis-200401-wss-1.0.xsd" xmlns:str="http://exslt.org/strings" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:secext="http://schemas.xmlsoap.org/ws/2002/04/secext" xmlns:rrbfunc="urn:schemas:functions:1.0" xmlns:rrbus="urn:schemas:context:1.0" xmlns:regexp="http://exslt.org/regular-expressions" xmlns:metrics20="urn:metrics:2.0" xmlns:metrics10="urn:metrics:1.0" xmlns:exsl="http://exslt.org/common" xmlns:endpt="urn:schemas.bcom/rrbus/1.0/spInfo" xmlns:date="http://exslt.org/dates-and-times" xmlns:common="urn::xslt:common.xsl" xmlns:cam="urn:comsec:authn:1.0"><logHeader><timestamp>2008-07-24T04:17:04.137000-04:00</timestamp><direction>response</direction><logType>SERVICE</logType></logHeader><logPayload><SOAP-ENV:Header xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><Security xmlns="http://schemas.xmlsoap.org/ws/2002/04/secext"><wsse:BinarySecurityToken EncodingType="sentry:Base64Binary" ValueType="sentry:CSK1" cam:Username="639025903" cam:OpaqueId="639025903" xmlns:sentry="urn::schemas:security:1.2">pa1044zV0vIpymMC5uPnnpGlsT-aTye3EX0@</wsse:BinarySecurityToken></Security><context xmlns="urn:schemas:context:1.0"><PilotRollout xmlns:i="http://www.w3.org/2001/XMLSchema-instance"><Region xmlns="">R_SAS</Region></PilotRollout><channel xmlns:i="http://www.w3.org/2001/XMLSchema-instance">IO</channel><properties xmlns:i="http://www.w3.org/2001/XMLSchema-instance"><property name="WebPartId">AcctBalances</property><property name="WebPartAction">Default</property><property name="CorrelatorId">54057-d7d7e997a6c7</property><property name="AsyncCall"/></properties></context><currentCorrelId xmlns="urn:hemas:metrics:1.0">7e36a2fc-2cd3-43af-9ca4ae8f</currentCorrelId><metrics10oint id="873e10cd-3691-4e3b4f190" parent="7e36a29-a31475a4ae8f" node="10.14.56.59" type="srmediary"><metrics10:start>2008-07-24 08:17:03.321000 UTC</metrics10:start><metrics10:block>2008-07-24 08:17:03.520000 UTC</metrics10:block></metrics10oint><busoint type=us.provider" parent="7e36a2fc-2cd31475a4ae8f" node="C1VTR6" id="003425861VTR6Z30818001" xmlns:rrbus="urn:schemas:metrics:1.0"><bus:start>2008-07-24 08:17:02.978203 UTC</bus:start><bus:block>2008-07-24 08:17:03.242739 UTC</bus:block><bus:unblock>2008-07-24 08:17:03.583753 UTC</bus:unblock><bus:stop>2008-07-24 08:17:03.588468 UTC</bus:stop></busoint><endpt:spInfo><endpt:tranId>RRXI</endpt:tranId><endptperation>GetThirdPartyAcctInfo</endptperation><endpt:TORName>C1VTRZ3</endpt:TORName><endpt:AORName>C1VA2Z9</endpt:AORName><endpt:taskNum>000690</endpt:taskNum><endpt:UOWID>C2BF750D1B3783</endpt:UOWID></endpt:spInfo></SOAP-ENV:Header></logPayload></logRequest>