How to start parsing arxml file from in python?-CodePudding

<ECUC-CONTAINER-VALUE>
                   <SHORT-NAME>WhlDist_Prtctd_PDU_PA_CAN_1_controller</SHORT-NAME>
                   <DEFINITION-REF DEST="ECUC-PARAM-CONF-CONTAINER-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu</DEFINITION-REF>
                   <PARAMETER-VALUES>
                    <ECUC-TEXTUAL-PARAM-VALUE>
                     <DEFINITION-REF DEST="ECUC-ENUMERATION-PARAM-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduDirection</DEFINITION-REF>
                     <VALUE>RECEIVE</VALUE>
                    </ECUC-TEXTUAL-PARAM-VALUE>
                    <ECUC-TEXTUAL-PARAM-VALUE>
                     <DEFINITION-REF DEST="ECUC-ENUMERATION-PARAM-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduSignalProcessing</DEFINITION-REF>
                     <VALUE>IMMEDIATE</VALUE>
                    </ECUC-TEXTUAL-PARAM-VALUE>
                    <ECUC-TEXTUAL-PARAM-VALUE>
                     <DEFINITION-REF DEST="ECUC-ENUMERATION-PARAM-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduType</DEFINITION-REF>
                     <VALUE>NORMAL</VALUE>
                    </ECUC-TEXTUAL-PARAM-VALUE>
                   </PARAMETER-VALUES>
                   <REFERENCE-VALUES>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_IngressEgress_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_PostCollisionOperation_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_Propulsion_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_RemoteDataService_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduSignalGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/WhlDist_Prtctd</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComPduIdRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/EcuC/EcucConfigSet/PduCollection/WhlDist_Prtctd_PDU_PA_CAN_1_controller_PduR2Com</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                   </REFERENCE-VALUES>
                  </ECUC-CONTAINER-VALUE>

I have tried below code also but I did not get the desired output :

from bs4 import BeautifulSoup as Soup

def diff_method():
    handler = open('Com_Comfort_EcucValues.arxml').read()
    soup = Soup(handler,"html.parser")  
    for ecuc_container in soup.find_all('ecuc-container-value'):
        for def_ref in ecuc_container.find_all('definition-ref'):
            print(def_ref.get_text())
            if def_ref.get_text(strip=True) == '/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu':
                    print(def_ref.find_next('value').text)
            

if __name__ == "__main__":

    diff_method()

my output:

RECEIVE
IMMEDIATE
IMMEDIATE

Expected Output:

WhlDist_Prtctd_PDU_PA_CAN_1_controller
DEST="ECUC-PARAM-CONF-CONTAINER-DEF"
DEST="ECUC-ENUMERATION-PARAM-DEF"
RECEIVE
DEST="ECUC-ENUMERATION-PARAM-DEF
IMMEDIATE
DEST="ECUC-ENUMERATION-PARAM-DEF"
NORMAL

I am working on autosar files, In Autosar we are using .arxml files, In below arxml file I want parse some data. using Beautifull Soup I wanted to grap the value as mention in expected output.

CodePudding user response：

Your script do not provide the described my output, so question needs some improvement.

Assuming you only want to get the <VALUE> texts you could deal with:

for e in soup.select('ecuc-container-value [DEST="ECUC-ENUMERATION-PARAM-DEF"] value'):
    print(e.text)

Example

from bs4 import BeautifulSoup

xml='''
<ECUC-CONTAINER-VALUE>
                   <SHORT-NAME>WhlDist_Prtctd_PDU_PA_CAN_1_controller</SHORT-NAME>
                   <DEFINITION-REF DEST="ECUC-PARAM-CONF-CONTAINER-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu</DEFINITION-REF>
                   <PARAMETER-VALUES>
                    <ECUC-TEXTUAL-PARAM-VALUE>
                     <DEFINITION-REF DEST="ECUC-ENUMERATION-PARAM-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduDirection</DEFINITION-REF>
                     <VALUE>RECEIVE</VALUE>
                    </ECUC-TEXTUAL-PARAM-VALUE>
                    <ECUC-TEXTUAL-PARAM-VALUE>
                     <DEFINITION-REF DEST="ECUC-ENUMERATION-PARAM-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduSignalProcessing</DEFINITION-REF>
                     <VALUE>IMMEDIATE</VALUE>
                    </ECUC-TEXTUAL-PARAM-VALUE>
                    <ECUC-TEXTUAL-PARAM-VALUE>
                     <DEFINITION-REF DEST="ECUC-ENUMERATION-PARAM-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduType</DEFINITION-REF>
                     <VALUE>NORMAL</VALUE>
                    </ECUC-TEXTUAL-PARAM-VALUE>
                   </PARAMETER-VALUES>
                   <REFERENCE-VALUES>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_IngressEgress_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_PostCollisionOperation_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_Propulsion_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_RemoteDataService_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduSignalGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/WhlDist_Prtctd</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComPduIdRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/EcuC/EcucConfigSet/PduCollection/WhlDist_Prtctd_PDU_PA_CAN_1_controller_PduR2Com</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                   </REFERENCE-VALUES>
                  </ECUC-CONTAINER-VALUE>
'''
from bs4 import BeautifulSoup
soup = BeautifulSoup(xml)

for e in soup.select('ecuc-container-value [DEST="ECUC-ENUMERATION-PARAM-DEF"] value'):
    print(e.text)

Output

RECEIVE
IMMEDIATE
NORMAL

CodePudding user response：

This is one way to get the expected output, using lxml:

from lxml import etree

string = '''
<ECUC-CONTAINER-VALUE>
                   <SHORT-NAME>WhlDist_Prtctd_PDU_PA_CAN_1_controller</SHORT-NAME>
                   <DEFINITION-REF DEST="ECUC-PARAM-CONF-CONTAINER-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu</DEFINITION-REF>
                   <PARAMETER-VALUES>
                    <ECUC-TEXTUAL-PARAM-VALUE>
                     <DEFINITION-REF DEST="ECUC-ENUMERATION-PARAM-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduDirection</DEFINITION-REF>
                     <VALUE>RECEIVE</VALUE>
                    </ECUC-TEXTUAL-PARAM-VALUE>
                    <ECUC-TEXTUAL-PARAM-VALUE>
                     <DEFINITION-REF DEST="ECUC-ENUMERATION-PARAM-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduSignalProcessing</DEFINITION-REF>
                     <VALUE>IMMEDIATE</VALUE>
                    </ECUC-TEXTUAL-PARAM-VALUE>
                    <ECUC-TEXTUAL-PARAM-VALUE>
                     <DEFINITION-REF DEST="ECUC-ENUMERATION-PARAM-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduType</DEFINITION-REF>
                     <VALUE>NORMAL</VALUE>
                    </ECUC-TEXTUAL-PARAM-VALUE>
                   </PARAMETER-VALUES>
                   <REFERENCE-VALUES>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_IngressEgress_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_PostCollisionOperation_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_Propulsion_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/PN_RemoteDataService_PA_CAN_1_IN</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComIPduSignalGroupRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/Com/ComConfig/WhlDist_Prtctd</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                    <ECUC-REFERENCE-VALUE>
                     <DEFINITION-REF DEST="ECUC-REFERENCE-DEF">/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu/ComPduIdRef</DEFINITION-REF>
                     <VALUE-REF DEST="ECUC-CONTAINER-VALUE">/RB/UBK/Project/EcucModuleConfigurationValuess/EcuC/EcucConfigSet/PduCollection/WhlDist_Prtctd_PDU_PA_CAN_1_controller_PduR2Com</VALUE-REF>
                    </ECUC-REFERENCE-VALUE>
                   </REFERENCE-VALUES>
                  </ECUC-CONTAINER-VALUE>

'''
root = etree.fromstring(string)

for element in root.iter(): 
    if element.text == "/AUTOSAR_Com/EcucModuleDefs/Com/ComConfig/ComIPdu":
        print(element.getprevious().text)
        print(element.attrib)
        for c in element.getnext().iter():
            if c.tag == 'DEFINITION-REF':
                print(c.attrib)
            elif c.tag == 'VALUE':
                print(c.text)

This will print in terminal:

WhlDist_Prtctd_PDU_PA_CAN_1_controller
{'DEST': 'ECUC-PARAM-CONF-CONTAINER-DEF'}
{'DEST': 'ECUC-ENUMERATION-PARAM-DEF'}
RECEIVE
{'DEST': 'ECUC-ENUMERATION-PARAM-DEF'}
IMMEDIATE
{'DEST': 'ECUC-ENUMERATION-PARAM-DEF'}
NORMAL