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Thread: Parsing SOAP/XML

  1. #1
    Join Date
    Nov 2009
    Posts
    1

    Parsing SOAP/XML

    Hello,

    I have a simple(maybe?) task to create a script that generates SOAP requests and parses the responses. I managed to create the correct SOAP request and I get the right response. My problem is that i cannot manage to parse the response in a usable way. I tried SOAP::Lite module, but no success..

    Here is a sample response that i need to parse:
    I need the <Value> and the <CStatus> for each Counter.

    <?xml version="1.0" encoding="UTF-8" ?>
    - <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    - <soapenv:Body>
    - <ns1:PerfmonCollectSessionDataResponse soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns1="http://schemas.cisco.com/ast/soap/">
    - <ArrayOfCounterInfo soapenc:arrayType="ns1:CounterInfoType[12]" xsi:type="soapenc:Array" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(Asterisk-NOC)\CallsActive</Name>
    <Value xsi:type="xsd:long">0</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(Asterisk-NOC)\CallsCompleted</Name>
    <Value xsi:type="xsd:long">0</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(BTC-DataPhone)\CallsActive</Name>
    <Value xsi:type="xsd:long">0</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(BTC-DataPhone)\CallsCompleted</Name>
    <Value xsi:type="xsd:long">1</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(BTC-VoIP)\CallsActive</Name>
    <Value xsi:type="xsd:long">0</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(BTC-VoIP)\CallsCompleted</Name>
    <Value xsi:type="xsd:long">2289</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(ITDNet)\CallsActive</Name>
    <Value xsi:type="xsd:long">0</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(ITDNet)\CallsCompleted</Name>
    <Value xsi:type="xsd:long">0</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(SpeedyNet_Asterisk)\CallsActive</Name>
    <Value xsi:type="xsd:long">1</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(SpeedyNet_Asterisk)\CallsCompleted</Name>
    <Value xsi:type="xsd:long">7115</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(Vivatel-VoIP)\CallsActive</Name>
    <Value xsi:type="xsd:long">0</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    - <item xsi:type="ns1:CounterInfoType">
    <Name xsi:type="ns1:CounterNameType">\\172.30.32.32\Cisco SIP(Vivatel-VoIP)\CallsCompleted</Name>
    <Value xsi:type="xsd:long">0</Value>
    <CStatus xsi:type="xsd:unsignedInt">0</CStatus>
    </item>
    </ArrayOfCounterInfo>
    </ns1:PerfmonCollectSessionDataResponse>
    </soapenv:Body>
    </soapenv:Envelope>
    Thanks in advance for your help and Best Regards!
    Borislav.

  2. #2
    Join Date
    Oct 2007
    Location
    Vienna, Austria
    Posts
    392
    Saving the code you pasted as 'wd.xml', I ran this script:
    PHP Code:
    #!/usr/bin/perl
    use strict;
    use 
    warnings;

    use 
    XML::DOM;

    my $parser = new XML::DOM::Parser;
    my $doc $parser->parsefile ("wd.xml");

    my $nodes $doc->getElementsByTagName('item');
    my $n $nodes->getLength;

    for 
    my $i (.. $n-1) {
        
    my $node $nodes->item($i);
        
    my $cstatus $node->getElementsByTagName('CStatus')->item(0)->getFirstChild->getNodeValue;
        
    my $value   $node->getElementsByTagName'Value' )->item(0)->getFirstChild->getNodeValue;
        print 
    "Item $i: CStatus: $cstatus, Value: $value\n";

    and it said syntax error. I had to remove the dashes from the line beginnings and then it ran successfully, yielding the expected results:
    Code:
    Item 0: CStatus: 0, Value: 0
    Item 1: CStatus: 0, Value: 0
    Item 2: CStatus: 0, Value: 0
    Item 3: CStatus: 0, Value: 1
    Item 4: CStatus: 0, Value: 0
    Item 5: CStatus: 0, Value: 2289
    Item 6: CStatus: 0, Value: 0
    Item 7: CStatus: 0, Value: 0
    Item 8: CStatus: 0, Value: 1
    Item 9: CStatus: 0, Value: 7115
    Item 10: CStatus: 0, Value: 0
    Item 11: CStatus: 0, Value: 0
    Summed up, the document doesn't seem to be a valid XML, if only for the dash before the first opening tag. Getting rid of those, XML::DOM did the job. Haven't tried SOAP::*.

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