Apache nifi 在nifi groovy中，给出异常的脚本已经标记为要传输

我有输入有效载荷

{“ENV”：{“MAC”：“6cececeb5d0302”，“NS”：“NM”，“DATE”：“170619”，“TIME”：“114635”，“PM2.5”：“10”，“PM10”：“8.272681196722012”}

我使用下面的脚本创建了多个流文件，效果很好。但同样的代码不适用于传输一个流文件。在下面基于

的代码中，如果
代码是我想要的，那么脚本要么将流传输到下一个处理器，要么只记录信息并删除该流文件

import groovy.json.*；
导入org.apache.commons.io.IOUtils；
导入java.nio.charset.*；
导入java.lang.*；
def flowFile=session.get（）；
if（flowFile==null）{
回来
}
def flowFiles=[]作为列表
flowFile=session.write（flowFile，
{inputStream，outputStream->
试一试{
def data=IOUtils.toString（inputStream，StandardCharsets.UTF_8）；
def input=new JsonSlurper（）.parseText（数据）；
if（Double.parseDouble（input.ENV[“PM2.5”]）>7.2）{
规划=
[环境：[
日期：input.ENV.DATE，
“PM2.5”：input.ENV[“PM2.5”]，
时间：input.ENV.TIME，
日期\时间：input.ENV.DATE，
NS:input.ENV.NS，
MAC:input.ENV.MAC
]];
字符串finalJson=JsonOutput.toJson out；
write（finalJson.getBytes（StandardCharsets.UTF_8））
流程文件代码中的问题-您正在
将
传输到成功，然后
删除
相同的流程文件

这些操作中只有一个可以应用于一个文件

你好像忘了创建一个新文件

尝试更改这部分代码：

String finalJson=JsonOutput.toJson out；
write（finalJson.getBytes（StandardCharsets.UTF_8））
flowFiles新建JsonBuilder（out）.writeTo（w）}
flowFiles new JsonSlurper（）.parse（r）}
data.ENV.each{item->
如果（（项目“PM2.5”为双倍）>7.2）{
def outFile=flowFile.clone（false）//克隆没有内容的flowFile
def outData=[ENVIRONMENT:item]//合并新的json
outFile.write（“UTF-8”）{w->
new JsonBuilder（outData）.writeTo（w）//将json作为输出文件内容写入
}
REL_SUCCESS删除空的try-catch。并显示真实错误。在删除try-catch后，我已更新了问题中的日志您的算法：
1。
您将传入流文件读入
flowFile
中
2。
然后将一些内容写入传入流文件
flowFile=session.write（flowFile…
3.
然后将传入的流文件添加到数组
flowFiles我需要用java代码生成groovyscript。因此，我使用相同的groovy代码模板生成一对一和一对多映射（使用循环生成一对多流文件）。我只想如果if块中的条件不满足，它应该在else部分中删除流文件，并在一对一和一对多流文件生成的情况下记录相同的内容。我只想使用两个或一个groovy脚本代码/模板，这两个脚本代码/模板将适用于带条件的一对一和一对多流文件生成。请编辑您的问题并提供了输入和预期多个输出的示例，但在我的案例中，为什么多流文件生成的第二个代码可以工作。如果条件不满足，它也会删除该流文件。我解释了为什么您的代码不能工作。您没有创建新的流文件。
{"ENVIRONMENT":{"DATE":"170619","PM2.5":"10","TIME":"114635","DATE_TIME":"170619","NS":"NM","MAC":"6CECEB5D0302"}}

2019-10-07 12:08:29,237 ERROR [Timer-Driven Process Thread-5] o.a.nifi.processors.script.ExecuteScript ExecuteScript[id=716b08ff-7a78-3806-bdd6-99d57cfd7cb7] Failed to process session due to org.apache.nifi.processor.exception.ProcessException: javax.script.ScriptException: javax.script.ScriptException: org.apache.nifi.processor.exception.FlowFileHandlingException: StandardFlowFileRecord[uuid=c8217e1d-ec25-4017-a175-25ef12ad64ba,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1570308702876-1, container=default, section=1], offset=53731, length=114],offset=0,name=c8217e1d-ec25-4017-a175-25ef12ad64ba,size=114] is already marked for transfer: org.apache.nifi.processor.exception.ProcessException: javax.script.ScriptException: javax.script.ScriptException: org.apache.nifi.processor.exception.FlowFileHandlingException: StandardFlowFileRecord[uuid=c8217e1d-ec25-4017-a175-25ef12ad64ba,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1570308702876-1, container=default, section=1], offset=53731, length=114],offset=0,name=c8217e1d-ec25-4017-a175-25ef12ad64ba,size=114] is already marked for transfer
org.apache.nifi.processor.exception.ProcessException: javax.script.ScriptException: javax.script.ScriptException: org.apache.nifi.processor.exception.FlowFileHandlingException: StandardFlowFileRecord[uuid=c8217e1d-ec25-4017-a175-25ef12ad64ba,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1570308702876-1, container=default, section=1], offset=53731, length=114],offset=0,name=c8217e1d-ec25-4017-a175-25ef12ad64ba,size=114] is already marked for transfer
    at org.apache.nifi.processors.script.ExecuteScript.onTrigger(ExecuteScript.java:248)
    at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1162)
    at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:209)
    at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
    at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: javax.script.ScriptException: javax.script.ScriptException: org.apache.nifi.processor.exception.FlowFileHandlingException: StandardFlowFileRecord[uuid=c8217e1d-ec25-4017-a175-25ef12ad64ba,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1570308702876-1, container=default, section=1], offset=53731, length=114],offset=0,name=c8217e1d-ec25-4017-a175-25ef12ad64ba,size=114] is already marked for transfer
    at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:162)
    at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:264)
    at org.apache.nifi.script.impl.GroovyScriptEngineConfigurator.eval(GroovyScriptEngineConfigurator.java:54)
    at org.apache.nifi.processors.script.ExecuteScript.onTrigger(ExecuteScript.java:232)
    ... 11 common frames omitted
Caused by: javax.script.ScriptException: org.apache.nifi.processor.exception.FlowFileHandlingException: StandardFlowFileRecord[uuid=c8217e1d-ec25-4017-a175-25ef12ad64ba,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1570308702876-1, container=default, section=1], offset=53731, length=114],offset=0,name=c8217e1d-ec25-4017-a175-25ef12ad64ba,size=114] is already marked for transfer
    at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:324)
    at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:159)
    ... 14 common frames omitted
Caused by: org.apache.nifi.processor.exception.FlowFileHandlingException: StandardFlowFileRecord[uuid=c8217e1d-ec25-4017-a175-25ef12ad64ba,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1570308702876-1, container=default, section=1], offset=53731, length=114],offset=0,name=c8217e1d-ec25-4017-a175-25ef12ad64ba,size=114] is already marked for transfer
    at org.apache.nifi.controller.repository.StandardProcessSession.validateRecordState(StandardProcessSession.java:3139)
    at org.apache.nifi.controller.repository.StandardProcessSession.validateRecordState(StandardProcessSession.java:3121)
    at org.apache.nifi.controller.repository.StandardProcessSession.remove(StandardProcessSession.java:1979)
    at org.apache.nifi.processor.ProcessSession$remove$3.call(Unknown Source)
    at Script107.run(Script107.groovy:40)
    at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:321)
    ... 15 common frames omitted

 {
    "ENV": [{
            "MAC": "6CECEB5D0302",
            "NS": "NM",
            "DATE": "170619",
            "TIME": "114635",
            "PM2.5": "7.222410585417936",
            "PM10": "8.272681196722012"
        },
        {
            "MAC": "6CECEB5D0302",
            "NS": "NM",
            "DATE": "170619",
            "TIME": "114635",
            "PM2.5": "7.222410585417936",
            "PM10": "8.272681196722012"
        }
    ]
}

import groovy.json.*;
import org.apache.commons.io.IOUtils;
import java.nio.charset.*;



def flowFile = session.get()
if(!flowFile) return
def flowFiles = [] as List<FlowFile>
def inputStream = session.read(flowFile)

def writer = new StringWriter();
    try {
            IOUtils.copy(inputStream, writer, "UTF-8");
            data=writer.toString();
            inputStream.close();
            def input = new JsonSlurper().parseText( data );
            for (def i=0;i<input.ENV.size();i++){
            if( Double.parseDouble(input.ENV[i]["PM2.5"])>7.2) {
            def newFlowFile = session.create(flowFile);
Map out =
[ENVIRONMENT: [
  DATE: input.ENV[i].DATE,
  "PM2.5": input.ENV[i]["PM2.5"],
  TIME: input.ENV[i].TIME,
  DATE_TIME: input.ENV[i].DATE,
  NS: input.ENV[i].NS,
  MAC: input.ENV[i].MAC
]];String finalJson = JsonOutput.toJson out;
            newFlowFile = session.write(newFlowFile, { outputStream -> 
                     outputStream.write( finalJson.getBytes(StandardCharsets.UTF_8) )
            } as OutputStreamCallback)
            flowFiles << newFlowFile
            }
            else{
            }
        }} catch (IOException e) {

        }
session.transfer(flowFiles, REL_SUCCESS)
session.remove(flowFile)