Question

我有像这样的groovy代码，我想提取TickSolution的值，然后用它作为调用服务的参数，我应该使用哪些nifi处理器来完成这项任务？

import java.nio.charset.StandardCharsets 
import org.apache.commons.io.IOUtils
import org.apache.nifi.processor.io.StreamCallback
import java.text.SimpleDateFormat
import java.util.GregorianCalendar

def flowfile = session.get()
if(!flowfile) return
def date=flowfile.getAttribute('fromDate')
 SimpleDateFormat format=new SimpleDateFormat("yyyy-mm-dd");
  def d=new Date(format.parse(date).getTime());
  def newdate=new GregorianCalendar(d.getYear(),d.getMonth(),d.getDay() )
 def TICKS_AT_EPOCH = 621355968000000000;
 def TICKS_PER_MILLISECOND= 10000;
  def TickSolution=(newdate.getTimeInMillis() - TICKS_AT_EPOCH) / TICKS_PER_MILLISECOND

flowfile = session.putAttribute(flowfile, 'filename','Info'+'_'+date)
session.transfer(flowfile, REL_SUCCESS)

Answer 1

萨利，

您可以尝试以下代码来处理TickSolution的值。

import java.nio.charset.StandardCharsets 
import org.apache.commons.io.IOUtils
import org.apache.nifi.processor.io.StreamCallback
import java.text.SimpleDateFormat
import java.util.GregorianCalendar

def flowfile = session.get()
if(!flowfile) return
def date=flowfile.getAttribute('fromDate')
 SimpleDateFormat format=new SimpleDateFormat("yyyy-mm-dd");
  def d=new Date(format.parse(date).getTime());
  def newdate=new GregorianCalendar(d.getYear(),d.getMonth(),d.getDay() )
 def TICKS_AT_EPOCH = 621355968000000000;
 def TICKS_PER_MILLISECOND= 10000;
  def TickSolution=(newdate.getTimeInMillis() - TICKS_AT_EPOCH) / TICKS_PER_MILLISECOND

flowfile = session.putAttribute(flowfile, 'filename','Info'+'_'+date)
flowfile=session.putAttribute(flowfile,'TickSolution',TickSolution)
session.transfer(flowfile, REL_SUCCESS)

如果您遇到任何问题，请告诉我。

从nifi流文件中提取文本并将其作为参数使用

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