Question

我正在尝试自动部署apache nifi进程组。

我工作的步骤是：

创建代码段
创建模板
下载模板
上传模板

然后我尝试使用api调用：

（https://nifi.apache.org/docs/nifi-docs/rest-api/）

POST / process-groups / {id} / template-instance实例化模板

   instantiate_data = { 
        "originX": 0.0,    
        "originY": 0.0,
        "templateId": template_id,      
        "snippet": { 
            "processGroups": [                  
                { 
                    "id": group_id,                 
                    "parentGroupId": parentgroup_id,
                    "position": {                       
                        "x": 0.0,                       
                        "y": 0.0                    
                    },
                    "name": "value",            
                }
                ] 
            } 
    }

这是我从Nifi实例获得500的时候。

下面的Stacktrace ......我缺少什么？

2017-05-23 14:28:49,180 INFO [NiFi Web Server-106]       org.apache.nifi.web.filter.RequestLogger Attempting request for (anonymous) POST http://10.132.0.22:8080/nifi-api/process-groups/1664cd1a-015c-1000-4bbe-f63259900964/template-instance (source ip: 10.132.0.23)

2017-05-23 14：28：49,185错误[NiFi Web Server-106] o.a.nifi.web.api.config.ThrowableMapper发生意外错误：java.lang.NullPointerException。返回内部服务器错误响应。 java.lang.NullPointerException：null 在org.apache.nifi.controller.FlowController.verifyProcessorsInSnippet（FlowController.java:2051） at org.apache.nifi.controller.FlowController.lambda $ verifyProcessorsInSnippet $ 1（FlowController.java:2067）在java.lang.Iterable.forEach（Iterable.java:75）在org.apache.nifi.controller.FlowController.verifyProcessorsInSnippet（FlowController.java:2066） at org.apache.nifi.controller.FlowController.verifyComponentTypesInSnippet（FlowController.java:2100） at org.apache.nifi.web.dao.impl.StandardTemplateDAO.verifyComponentTypes（StandardTemplateDAO.java:74） at org.apache.nifi.web.dao.impl.StandardTemplateDAO $$ FastClassBySpringCGLIB $$ 58f5765d.invoke（）在org.springframework.cglib.proxy.MethodProxy.invoke（MethodProxy.java:204）在org.springframework.aop.framework.CglibAopProxy $ CglibMethodInvocation.invokeJoinpoint（CglibAopProxy.java:720）在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:157）在org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke（ExposeInvocationInterceptor.java:92）在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）在org.springframework.aop.framework.CglibAopProxy $ DynamicAdvisedInterceptor.intercept（CglibAopProxy.java:655） at org.apache.nifi.web.dao.impl.StandardTemplateDAO $$ EnhancerBySpringCGLIB $$ 2cf2c182.verifyComponentTypes（） at org.apache.nifi.web.StandardNiFiServiceFacade.verifyComponentTypes（StandardNiFiServiceFacade.java:1643）在org.apache.nifi.web.StandardNiFiServiceFacade $$ FastClassBySpringCGLIB $$ 358780e0.invoke（）在org.springframework.cglib.proxy.MethodProxy.invoke（MethodProxy.java:204）在org.springframework.aop.framework.CglibAopProxy $ CglibMethodInvocation.invokeJoinpoint（CglibAopProxy.java:720）在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:157）在org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed（MethodInvocationProceedingJoinPoint.java:85）在org.apache.nifi.web.NiFiServiceFacadeLock.proceedWithReadLock（NiFiServiceFacadeLock.java:137）在org.apache.nifi.web.NiFiServiceFacadeLock.verifyLock（NiFiServiceFacadeLock.java:126） at sun.reflect.GeneratedMethodAccessor320.invoke（Unknown Source） at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43） at java.lang.reflect.Method.invoke（Method.java:498）在org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs（AbstractAspectJAdvice.java:621）在org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod（AbstractAspectJAdvice.java:610）在org.springframework.aop.aspectj.AspectJAroundAdvice.invoke（AspectJAroundAdvice.java:68）在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）在org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke（ExposeInvocationInterceptor.java:92）在org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）在org.springframework.aop.framework.CglibAopProxy $ DynamicAdvisedInterceptor.intercept（CglibAopProxy.java:655） at org.apache.nifi.web.StandardNiFiServiceFacade $$ EnhancerBySpringCGLIB $$ 9a341d03.verifyComponentTypes（） at org.apache.nifi.web.api.ProcessGroupResource.lambda $ instantiateTemplate $ 41（ProcessGroupResource.java:1995） at org.apache.nifi.web.api.ApplicationResource.withWriteLock（ApplicationResource.java:667）在org.apache.nifi.web.api.ProcessGroupResource.instantiateTemplate（ProcessGroupResource.java:1967） at sun.reflect.GeneratedMethodAccessor327.invoke（Unknown Source） at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43） at java.lang.reflect.Method.invoke（Method.java:498） at com.sun.jersey.spi.container.JavaMethodInvokerFactory $ 1.invoke（JavaMethodInvokerFactory.java:60） at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider $ ResponseOutInvoker._dispatch（AbstractResourceMethodDispatchProvider.java:205） at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch（ResourceJavaMethodDispatcher.java:75）在com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept（HttpMethodRule.java:302）在com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept（RightHandPathRule.java:147）在com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept（ResourceClassRule.java:108）在com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept（RightHandPathRule.java:147） at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept（RootResourceClassesRule.java:84） at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest（WebApplicationImpl.java:1542） at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest（WebApplicationImpl.java:1473） at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest（WebApplicationImpl.java:1419） at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest（WebApplicationImpl.java:1409）在com.sun.jersey.spi.container.servlet.WebComponent.service（WebComponent.java:409）在com.sun.jersey.spi.container.servlet.ServletContainer.service（ServletContainer.java:558）在com.sun.jersey.spi.container.servlet.ServletContainer.service（ServletContainer.java:733）在javax.servlet.http.HttpServlet.service（HttpServlet.java:790）在org.eclipse.jetty.servlet.ServletHolder.handle（ServletHolder.java:841） at org.eclipse.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1634）在org.apache.nifi.web.filter.RequestLogger.doFilter（RequestLogger.java:66）在org.eclipse.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1621）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:316）在org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke（FilterSecurityInterceptor.java:126）在org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter（FilterSecurityInterceptor.java:90）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:330）在org.springframework.security.web.session.SessionManagementFilter.doFilter（SessionManagementFilter.java:122）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:330）在org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter（AnonymousAuthenticationFilter.java:111）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:330）在org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate（NiFiAuthenticationFilter.java:83）在org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter（NiFiAuthenticationFilter.java:57）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:330）在org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate（NiFiAuthenticationFilter.java:83）在org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter（NiFiAuthenticationFilter.java:57）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:330）在org.apache.nifi.web.security.NiFiAuthenticationFilter.authenticate（NiFiAuthenticationFilter.java:83）在org.apache.nifi.web.security.NiFiAuthenticationFilter.doFilter（NiFiAuthenticationFilter.java:57）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:330）在org.springframework.security.web.FilterChainProxy.doFilterInternal（FilterChainProxy.java:213）在org.springframework.security.web.FilterChainProxy.doFilter（FilterChainProxy.java:176）在org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate（DelegatingFilterProxy.java:346）在org.springframework.web.filter.DelegatingFilterProxy.doFilter（DelegatingFilterProxy.java:262）在org.eclipse.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1621）在org.apache.nifi.web.filter.TimerFilter.doFilter（TimerFilter.java:51） at org.eclipse.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1613）在org.eclipse.jetty.servlet.ServletHandler.doHandle（ServletHandler.java:541）在org.eclipse.jetty.server.handler.ScopedHandler.handle（ScopedHandler.java:143）在org.eclipse.jetty.security.SecurityHandler.handle（SecurityHandler.java:548）在org.eclipse.jetty.server.handler.HandlerWrapper.handle（HandlerWrapper.java:132）在org.eclipse.jetty.server.handler.ScopedHandler.nextHandle（ScopedHandler.java:190）在org.eclipse.jetty.server.session.SessionHandler.doHandle（SessionHandler.java:1593）在org.eclipse.jetty.server.handler.ScopedHandler.nextHandle（ScopedHandler.java:188） at org.eclipse.jetty.server.handler.ContextHandler.doHandle（ContextHandler.java:1239）在org.eclipse.jetty.server.handler.ScopedHandler.nextScope（ScopedHandler.java:168）在org.eclipse.jetty.servlet.ServletHandler.doScope（ServletHandler.java:481）在org.eclipse.jetty.server.session.SessionHandler.doScope（SessionHandler.java:1562）在org.eclipse.jetty.server.handler.ScopedHandler.nextScope（ScopedHandler.java:166）在org.eclipse.jetty.server.handler.ContextHandler.doScope（ContextHandler.java:1141）在org.eclipse.jetty.server.handler.ScopedHandler.handle（ScopedHandler.java:141）在org.eclipse.jetty.server.handler.HandlerCollection.handle（HandlerCollection.java:118）在org.eclipse.jetty.server.handler.gzip.GzipHandler.handle（GzipHandler.java:561）在org.eclipse.jetty.server.handler.HandlerWrapper.handle（HandlerWrapper.java:132）在org.eclipse.jetty.server.Server.handle（Server.java:564）在org.eclipse.jetty.server.HttpChannel.handle（HttpChannel.java:320）在org.eclipse.jetty.server.HttpConnection.onFillable（HttpConnection.java:251） at org.eclipse.jetty.io.AbstractConnection $ ReadCallback.succeeded（AbstractConnection.java:279）在org.eclipse.jetty.io.FillInterest.fillable（FillInterest.java:110）在org.eclipse.jetty.io.ChannelEndPoint $ 2.run（ChannelEndPoint.java:124） at org.eclipse.jetty.util.thread.Invocable.invokePreferred（Invocable.java:122） at org.eclipse.jetty.util.thread.strategy.ExecutingExecutionStrategy.invoke（ExecutingExecutionStrategy.java:58） at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume（ExecuteProduceConsume.java:201） at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run（ExecuteProduceConsume.java:133）在org.eclipse.jetty.util.thread.QueuedThreadPool.runJob（QueuedThreadPool.java:672）在org.eclipse.jetty.util.thread.QueuedThreadPool $ 2.run（QueuedThreadPool.java:590）在java.lang.Thread.run（Thread.java:748）

Answer 1

@ strzelecki.maciek，

你必须传递instantiate_data才能正确如下。

如果任何参数属于实例化数据错误，则会收到500内部服务器错误。

Rest API网址：

http://localhost:8080/nifi-api/process-groups/015c100c-8968-18bb-9b56-bf5342d001fd/template-instance

以及正确实例化数据。

{
    "originX": 2.0,
    "originY": 3.0,
    "templateId": "87fb53bb-a4bd-4051-a129-66b29dfce2b4"
}

如果您遇到任何问题，请与我联系。

如何通过rest api

1 个答案: