topic Re: REST API, complete Task with variables in Alfresco Archive

REST API, complete Task with variables

pih — Wed, 28 Sep 2011 05:32:14 GMT

Hi there,I'm trying to use the REST API complete PUT request, like soUT /activiti-rest/service/task/734/completethe example I'm running is the Expense_process.bpmn20.xml which comes with the activiti-engine-examples in.\activiti-5.7\workspace\activiti-engine-examples\src\main\process\org\activiti\

Re: REST API, complete Task with variables

trademak — Wed, 28 Sep 2011 07:49:15 GMT

Hi,

In the logging you posted I see:

Writing [{"processDefinitionId":"Amount:123456"}] as "application/json"

This is no valid JSON message. The message should not contain the processDefinitionId.
You are right that the JSON message fields are mapped to variables.

Best regards,

Re: REST API, complete Task with variables

pih — Wed, 28 Sep 2011 09:13:01 GMT

thanks for the reply,

but apparently, even with the modified request
""{\"Amount\":123,\"Motivation\":\"can't get activiti REST to work!\"}"" see below
it doesn't work and I still see HTTPStatus 500.
(Note: I changed the variables name to uppercase again, e.g. "Amount")


DEBUG      :                   httpclient.wire.header:  >> "PUT /activiti-rest/service/task/965/complete HTTP/1.1[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      : apache.commons.httpclient.HttpMethodBase:  Adding Host request header {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "Content-Type: application/json[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "Authorization: Basic Z29uem86Z29uem8=[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "User-Agent: Jakarta Commons-HttpClient/3.1[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "Host: localhost:8080[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "Content-Length: 68[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  >> ""{\"Amount\":123,\"Motivation\":\"can't get activiti REST to work!\"}"" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      : httpclient.methods.EntityEnclosingMethod:  Request body sent {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "HTTP/1.1 500 Internal Server Error[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "HTTP/1.1 500 Internal Server Error[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Date: Wed, 28 Sep 2011 09:06:31 GMT[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Accept-Ranges: bytes[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Server: Restlet-Framework/2.0.8[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Content-Type: text/html;charset=UTF-8[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Content-Length: 433[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Connection: close[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
WARN       : .springframework.web.client.RestTemplate:  PUT request for "http://localhost:8080/activiti-rest/service/task/965/complete" resulted in 500 (Internal Server Error); invoking error handler {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "<html>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "<head>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "   <title>Status page</title>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "</head>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "<body style="font-family: sans-serif;">[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "<p style="font-size: 1.2em;font-weight: bold;margin: 1em 0px;">Internal Server Error</p>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "<p>Did not receive the operation parameters</p>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "<p>You can get technical details <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.5.1">here</a>.<br>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "Please continue your visit at our <a href="/">home page</a>.[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "</p>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "</body>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  << "</html>[\n]" {XYZ|UserTaskDelegateManagement|completeTask|IBcBAGIPdAkBoI7Y|HB7UOBHPdAkBoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}

On my activiti console I still see:


ocalhost:8080   Jakarta Commons-HttpClient/3.1  -
28.09.2011 11:06:31 org.activiti.engine.impl.interceptor.CommandContext close
SCHWERWIEGEND: Error while closing command context
org.activiti.engine.ActivitiException: Unknown property used in expression
        at org.activiti.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
        at org.activiti.engine.impl.bpmn.behavior.UserTaskActivityBehavior.execute(UserTaskActivityBehavior.java:52)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:40)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerStart.java:48)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:52)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:45)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionCreateScope.execute(AtomicOperationTransitionCreateScope.java:44)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerTake.execute(AtomicOperationTransitionNotifyListenerTake.java:61)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionDestroyScope.execute(AtomicOperationTransitionDestroyScope.java:111)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerEnd.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerEnd.java:36)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:52)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:45)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.take(ExecutionEntity.java:326)
        at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performOutgoingBehavior(BpmnActivityBehavior.java:92)
        at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performDefaultOutgoingBehavior(BpmnActivityBehavior.java:49)
        at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.leave(FlowNodeActivityBehavior.java:44)
        at org.activiti.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.leave(AbstractBpmnActivityBehavior.java:37)
        at org.activiti.engine.impl.bpmn.behavior.UserTaskActivityBehavior.signal(UserTaskActivityBehavior.java:74)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.signal(ExecutionEntity.java:309)
        at org.activiti.engine.impl.persistence.entity.TaskEntity.complete(TaskEntity.java:149)
        at org.activiti.engine.impl.cmd.CompleteTaskCmd.completeTask(CompleteTaskCmd.java:63)
        at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:57)
        at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:28)
        at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
        at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:42)
        at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
        at org.activiti.engine.impl.TaskServiceImpl.complete(TaskServiceImpl.java:148)
        at org.activiti.rest.api.task.TaskOperationResource.executeTaskOperation(TaskOperationResource.java:58)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.restlet.resource.ServerResource.doHandle(ServerResource.java:446)
        at org.restlet.resource.ServerResource.doHandle(ServerResource.java:490)
        at org.restlet.resource.ServerResource.put(ServerResource.java:1139)
        at org.restlet.resource.ServerResource.doHandle(ServerResource.java:375)
        at org.restlet.resource.ServerResource.doNegotiatedHandle(ServerResource.java:591)
        at org.restlet.resource.ServerResource.doConditionalHandle(ServerResource.java:299)
        at org.restlet.resource.ServerResource.handle(ServerResource.java:846)
        at org.restlet.resource.Finder.handle(Finder.java:510)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Router.doHandle(Router.java:497)
        at org.restlet.routing.Router.handle(Router.java:737)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.engine.application.StatusFilter.doHandle(StatusFilter.java:151)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.engine.ChainHelper.handle(ChainHelper.java:111)
        at org.restlet.engine.application.ApplicationHelper.handle(ApplicationHelper.java:72)
        at org.restlet.Application.handle(Application.java:388)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Router.doHandle(Router.java:497)
        at org.restlet.routing.Router.handle(Router.java:737)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Router.doHandle(Router.java:497)
        at org.restlet.routing.Router.handle(Router.java:737)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.engine.ChainHelper.handle(ChainHelper.java:111)
        at org.restlet.Component.handle(Component.java:387)
        at org.restlet.Server.handle(Server.java:488)
        at org.restlet.engine.ServerHelper.handle(ServerHelper.java:71)
        at org.restlet.engine.http.HttpServerHelper.handle(HttpServerHelper.java:150)
        at org.restlet.ext.servlet.ServerServlet.service(ServerServlet.java:1037)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:619)
Caused by: org.activiti.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'Amount'
        at org.activiti.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
        at org.activiti.engine.impl.juel.AstEval.eval(AstEval.java:50)
        at org.activiti.engine.impl.juel.AstComposite.eval(AstComposite.java:34)
        at org.activiti.engine.impl.juel.AstNode.getValue(AstNode.java:26)
        at org.activiti.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
        at org.activiti.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:33)
        at org.activiti.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:37)
        at org.activiti.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:25)
        at org.activiti.engine.impl.el.JuelExpression.getValue(JuelExpression.java:50)
        … 102 more
28.09.2011 11:06:31 org.restlet.resource.UniformResource doCatch
WARNUNG: Exception or error caught in resource
org.activiti.engine.ActivitiException: Did not receive the operation parameters
        at org.activiti.rest.api.task.TaskOperationResource.executeTaskOperation(TaskOperationResource.java:64)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.restlet.resource.ServerResource.doHandle(ServerResource.java:446)
        at org.restlet.resource.ServerResource.doHandle(ServerResource.java:490)
        at org.restlet.resource.ServerResource.put(ServerResource.java:1139)
        at org.restlet.resource.ServerResource.doHandle(ServerResource.java:375)
        at org.restlet.resource.ServerResource.doNegotiatedHandle(ServerResource.java:591)
        at org.restlet.resource.ServerResource.doConditionalHandle(ServerResource.java:299)
        at org.restlet.resource.ServerResource.handle(ServerResource.java:846)
        at org.restlet.resource.Finder.handle(Finder.java:510)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Router.doHandle(Router.java:497)
        at org.restlet.routing.Router.handle(Router.java:737)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.engine.application.StatusFilter.doHandle(StatusFilter.java:151)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.engine.ChainHelper.handle(ChainHelper.java:111)
        at org.restlet.engine.application.ApplicationHelper.handle(ApplicationHelper.java:72)
        at org.restlet.Application.handle(Application.java:388)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Router.doHandle(Router.java:497)
        at org.restlet.routing.Router.handle(Router.java:737)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.routing.Router.doHandle(Router.java:497)
        at org.restlet.routing.Router.handle(Router.java:737)
        at org.restlet.routing.Filter.doHandle(Filter.java:156)
        at org.restlet.routing.Filter.handle(Filter.java:203)
        at org.restlet.engine.ChainHelper.handle(ChainHelper.java:111)
        at org.restlet.Component.handle(Component.java:387)
        at org.restlet.Server.handle(Server.java:488)
        at org.restlet.engine.ServerHelper.handle(ServerHelper.java:71)
        at org.restlet.engine.http.HttpServerHelper.handle(HttpServerHelper.java:150)
        at org.restlet.ext.servlet.ServerServlet.service(ServerServlet.java:1037)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:619)
Caused by: org.activiti.engine.ActivitiException: Unknown property used in expression
        at org.activiti.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55)
        at org.activiti.engine.impl.bpmn.behavior.UserTaskActivityBehavior.execute(UserTaskActivityBehavior.java:52)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:40)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerStart.java:48)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:52)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:45)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionCreateScope.execute(AtomicOperationTransitionCreateScope.java:44)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerTake.execute(AtomicOperationTransitionNotifyListenerTake.java:61)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionDestroyScope.execute(AtomicOperationTransitionDestroyScope.java:111)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerEnd.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerEnd.java:36)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:52)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:45)
        at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.take(ExecutionEntity.java:326)
        at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performOutgoingBehavior(BpmnActivityBehavior.java:92)
        at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performDefaultOutgoingBehavior(BpmnActivityBehavior.java:49)
        at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.leave(FlowNodeActivityBehavior.java:44)
        at org.activiti.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.leave(AbstractBpmnActivityBehavior.java:37)
        at org.activiti.engine.impl.bpmn.behavior.UserTaskActivityBehavior.signal(UserTaskActivityBehavior.java:74)
        at org.activiti.engine.impl.persistence.entity.ExecutionEntity.signal(ExecutionEntity.java:309)
        at org.activiti.engine.impl.persistence.entity.TaskEntity.complete(TaskEntity.java:149)
        at org.activiti.engine.impl.cmd.CompleteTaskCmd.completeTask(CompleteTaskCmd.java:63)
        at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:57)
        at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:28)
        at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
        at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:42)
        at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
        at org.activiti.engine.impl.TaskServiceImpl.complete(TaskServiceImpl.java:148)
        at org.activiti.rest.api.task.TaskOperationResource.executeTaskOperation(TaskOperationResource.java:58)
        … 59 more
Caused by: org.activiti.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'Amount'
        at org.activiti.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83)
        at org.activiti.engine.impl.juel.AstEval.eval(AstEval.java:50)
        at org.activiti.engine.impl.juel.AstComposite.eval(AstComposite.java:34)
        at org.activiti.engine.impl.juel.AstNode.getValue(AstNode.java:26)
        at org.activiti.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114)
        at org.activiti.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:33)
        at org.activiti.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:37)
        at org.activiti.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:25)
        at org.activiti.engine.impl.el.JuelExpression.getValue(JuelExpression.java:50)
        … 102 more
28.09.2011 11:06:31 org.restlet.engine.log.LogFilter afterHandle
INFO: 2011-09-28        11:06:31        127.0.0.1       gonzo   127.0.0.1       8080    PUT     /activiti-rest/service/task/965/complete        -       500     433     68      15
:8080   Jakarta Commons-HttpClient/3.1  -

any other ideas?

thanks in advance,
Holger

Re: REST API, complete Task with variables

pih — Wed, 28 Sep 2011 09:45:11 GMT

solved!

apparently the problem lies within the spring RestTemplate,

if I modify the caller like so:
restTemplate.put(url, obj, taskId);

instead of using
restTemplate.execute(url, HttpMethod.PUT, …)

it works!!

thanks,

Holger


DEBUG      :                   httpclient.wire.header:  >> "PUT /activiti-rest/service/task/1005/complete HTTP/1.1[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      : apache.commons.httpclient.HttpMethodBase:  Adding Host request header {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "Content-Type: application/json[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "Authorization: Basic Z29uem86Z29uem8=[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "User-Agent: Jakarta Commons-HttpClient/3.1[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "Host: localhost:8080[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "Content-Length: 58[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  >> "[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                  httpclient.wire.content:  >> "{"amount":123,"reason":"can't get activiti REST to work!"}" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      : httpclient.methods.EntityEnclosingMethod:  Request body sent {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "HTTP/1.1 200 OK[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "HTTP/1.1 200 OK[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Date: Wed, 28 Sep 2011 09:40:32 GMT[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Accept-Ranges: bytes[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Server: Restlet-Framework/2.0.8[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "Content-Length: 0[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}
DEBUG      :                   httpclient.wire.header:  << "[\r][\n]" {XYZ|UserTaskDelegateManagement|completeTask|OAV3Avu66k1BoI7Y|NAmf85t66k1BoI7Y|BAAoNCtUWAkBoI7Y|en_US - t123456|001}

Re: REST API, complete Task with variables

mokematt — Tue, 19 Jun 2012 08:07:01 GMT

I got the same problem like you but i use php to perform the rest-requests, so your hint didn't help me.
My Http-Request looks like this:

PUT /activiti-rest/service/task/2017/complete HTTP/1.1
Host: localhost
Content-type: application/json
Authorization: Basic cHVjY286TmFzZTEyMys=
Content-Length: 58
Connection: close
{"Amount":1337,"Motivation":"ActivitiEngine should work!"}

I got the same problem("Did not receive the operation parameters") by claiming a task e.g. the first task in the FinancialReport process. Do i have to set any parameters for task claiming? :?:

thanks a lot for help