Search a string using logstash

Elastic Stack Logstash
7

Hi,

Tried this but still not working. Sharing the complete logstash config file and to answer your question - Iam not updating data anywhere in between. Is there can be a possibility that the xml is stored as a string and logstash is not able to understand. Can we search a string with in and substring the value?

input {
   jms {
      include_header => true
      include_properties => true
      include_body => true
      use_jms_timestamp => true
      timeout => -1
      destination => "q.logstash"
      pub_sub => false
      yaml_file => "/home/elastic/softwares/logstash-7.11.1/config/ems.yml"
      yaml_section => "ems"
   }
}

filter
{
 xml {
        remove_namespaces => "true"
        source => "message"
        store_xml => "false"
        target => "doc"
        xpath =>  [
                   "//conversationId/text()","conversationId",
                   "//eventId/text()","eventId",
                   "//correlationId/text()","correlationId",
                   "//systemConsumer/text()","systemConsumer",
                   "//systemDestination/text()","systemDestination",
                   "//serviceName/text()","serviceName",
                   "//payload/text()","payload"
        ]

    }
  xml {
        remove_namespaces => "true"
        source => "payload"
        store_xml => "false"
        target => "doc2"
        xpath =>  [
                   "//customerId/text()","customerId"
        ]
      }
}

output{
        elasticsearch {
        hosts => ["localhost:9200"]
        index => "inderforlogstash"
        }
}