I want to romeve namespaces from my xml response(now i am working inside nifi
environment,so i have to use groovy utilities) here is my code , but it
throws FlowfFileHandlingException, what should i change to make this code
work?:
import org.apache.commons.io.IOUtils
import java.nio.charset.StandardCharsets
import groovy.lang.*
import java.util.concurrent.TimeUnit;
import java.lang.String;
import groovy.xml.XmlUtil
def flowFile=session.get();
String removeXmlStringNamespaceAndPreamble(String xmlString) {
return xmlString.replaceAll("(<\\?[^<]*\\?>)?", "").
replaceAll("xmlns.*?(\"|\').*?(\"|\')", "")
.replaceAll("(<)(\\w+:)(.*?>)", "${1}${3}")
.replaceAll("(</)(\\w+:)(.*?>)", "${1}${3}");
}
def text = ''
session.read(flowFile, {inputStream ->
text = IOUtils.toString(inputStream, StandardCharsets.UTF_8)
} as InputStreamCallback)
//text=removeXmlStringNamespaceAndPreamble(text);
log.error(removeXmlStringNamespaceAndPreamble(text));
def root = new XmlSlurper( false, false ).parse( text );
String outxml = groovy.xml.XmlUtil.serialize( root );
flowFile = session.write(flowFile, {outputStream ->
outputStream.write(outxml.getBytes(StandardCharsets.UTF_8))
} as OutputStreamCallback)
session.transfer(flowFile,REL_SUCCESS);
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