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Question

 Joel McLeish (JoelMcLeish)
PEGA
Senior Director, Service Assurance
Pegasystems Inc.
AU
JoelMcLeish Member since 2014 3 posts
PEGA
Posted: Oct 7, 2015
Last activity: Oct 8, 2015
Posted: 7 Oct 2015 0:05 EDT
Last activity: 8 Oct 2015 20:09 EDT
Closed
Solved

String Array in REST Connector Request Data (POST)

Using the REST Connector Wizard, for a post operation, the below string is incorrectly rejected as invalid JSON for the request data (it should be noted, this is the sum total of the request data).

["Valid","JSON","Array"]

I've attempted to use both a pagelist of SingleValue-Text and ValueList as a source for the MapFrom in the Connect-REST with no success.

Any thoughts as to how or whether Pega (7.1.8) supports this?

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Data Integration

Posted: 9 years ago
Posted: 7 Oct 2015 15:50 EDT
Kumar (VipinKumar38163630)

Please confirm my understanding - Your external Rest service is expecting the client, Pega in this case, to send in the JSON object of the format ["Valid","JSON","Array"]  but you have been unable to use pagelist or singlevalue-text fields under Methods tab of Connect-REST rule to Map this value From.

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Posted: 9 years ago
Posted: 7 Oct 2015 18:04 EDT
Joel McLeish (JoelMcLeish)
PEGA
Senior Director, Service Assurance
Pegasystems Inc.
AU

Morning Aditya,

Stack trace as below, in using the pagelist and valuelist the stacktrace only varies in the message, both listed.


com.pega.pegarules.pub.services.OutboundMappingException: Attempting to map data from page list property .Request_Post to unsupported data type: String

com.pega.pegarules.pub.services.OutboundMappingException: Attempting to map data from string list property .Request_Post to unsupported data type: String

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Morning Aditya,

Stack trace as below, in using the pagelist and valuelist the stacktrace only varies in the message, both listed.


com.pega.pegarules.pub.services.OutboundMappingException: Attempting to map data from page list property .Request_Post to unsupported data type: String

com.pega.pegarules.pub.services.OutboundMappingException: Attempting to map data from string list property .Request_Post to unsupported data type: String

at com.pega.pegarules.integration.engine.internal.util.PRServiceUtils.mapOutboundData(PRServiceUtils.java:1308)
at com.pegarules.generated.activity.ra_action_invoke_6a91441c4f6e5048b63360383ae1b952.step5_circum0(ra_action_invoke_6a91441c4f6e5048b63360383ae1b952.java:693)
at com.pegarules.generated.activity.ra_action_invoke_6a91441c4f6e5048b63360383ae1b952.perform(ra_action_invoke_6a91441c4f6e5048b63360383ae1b952.java:137)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3500)
at com.pegarules.generated.activity.ra_action_pxcallconnector_11f2ec27fb0b16bb79951eb7d74cbe15.step10_circum0(ra_action_pxcallconnector_11f2ec27fb0b16bb79951eb7d74cbe15.java:1664)
at com.pegarules.generated.activity.ra_action_pxcallconnector_11f2ec27fb0b16bb79951eb7d74cbe15.perform(ra_action_pxcallconnector_11f2ec27fb0b16bb79951eb7d74cbe15.java:246)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3500)
at com.pega.pegarules.exec.internal.declare.infengine.pages.DeclarativePageDirectoryImpl.runRule(DeclarativePageDirectoryImpl.java:994)
at com.pega.pegarules.exec.internal.declare.infengine.pages.DeclarativePageDirectoryImpl.runLoadActivity(DeclarativePageDirectoryImpl.java:452)
at com.pega.pegarules.session.internal.mgmt.base.handler.ReadOnlyDataPageHandler.loadDataPage(ReadOnlyDataPageHandler.java:236)
at com.pega.pegarules.session.internal.mgmt.base.handler.ReadOnlyDataPageHandler.findDataPage(ReadOnlyDataPageHandler.java:384)
at com.pega.pegarules.session.internal.mgmt.base.AbstractPageDirectory.findDataPageInCurrentDir(AbstractPageDirectory.java:920)
at com.pega.pegarules.session.internal.mgmt.base.ThreadPageDir.getDataPageByInsKey(ThreadPageDir.java:737)
at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.getDataPageByInsKey(PRThreadImpl.java:2249)
at com.pega.pegarules.session.internal.mgmt.Executable.findDataPageByInsKey(Executable.java:10691)
at com.pegarules.generated.activity.ra_action_pyrunrecordexecute_8e234b35078998e23dc29ba708a04611.step5_circum0(ra_action_pyrunrecordexecute_8e234b35078998e23dc29ba708a04611.java:523)
at com.pegarules.generated.activity.ra_action_pyrunrecordexecute_8e234b35078998e23dc29ba708a04611.perform(ra_action_pyrunrecordexecute_8e234b35078998e23dc29ba708a04611.java:161)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3500)
at com.pega.pegarules.session.internal.mgmt.Executable.invokeActivity(Executable.java:10521)
at com.pegarules.generated.activity.ra_action_pzrunrecordexecute_f73998920c112079b42c8cca0a4e44ad.step11_circum0(ra_action_pzrunrecordexecute_f73998920c112079b42c8cca0a4e44ad.java:1009)
at com.pegarules.generated.activity.ra_action_pzrunrecordexecute_f73998920c112079b42c8cca0a4e44ad.perform(ra_action_pzrunrecordexecute_f73998920c112079b42c8cca0a4e44ad.java:245)
at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3500)
at com.pega.pegarules.session.internal.mgmt.base.ThreadRunner.runActivitiesAlt(ThreadRunner.java:646)
at com.pega.pegarules.session.internal.mgmt.PRThreadImpl.runActivitiesAlt(PRThreadImpl.java:461)
at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.runActivities(HttpAPI.java:3322)
at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequestInner(EngineAPI.java:385)
at sun.reflect.GeneratedMethodAccessor73.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.performTargetActionWithLock(PRSessionProviderImpl.java:1270)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:1008)
at com.pega.pegarules.session.internal.PRSessionProviderImpl.doWithRequestorLocked(PRSessionProviderImpl.java:841)
at com.pega.pegarules.session.external.engineinterface.service.EngineAPI.processRequest(EngineAPI.java:331)
at com.pega.pegarules.session.internal.engineinterface.service.HttpAPI.invoke(HttpAPI.java:850)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl._invokeEngine_privact(EngineImpl.java:315)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:263)
at com.pega.pegarules.session.internal.engineinterface.etier.impl.EngineImpl.invokeEngine(EngineImpl.java:240)
at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngineInner(JNDIEnvironment.java:278)
at com.pega.pegarules.priv.context.JNDIEnvironment.invokeEngine(JNDIEnvironment.java:223)
at com.pega.pegarules.web.impl.WebStandardImpl.makeEtierRequest(WebStandardImpl.java:574)
at com.pega.pegarules.web.impl.WebStandardImpl.doPost(WebStandardImpl.java:374)
at sun.reflect.GeneratedMethodAccessor72.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethod(PRBootstrap.java:367)
at com.pega.pegarules.internal.bootstrap.PRBootstrap.invokeMethodPropagatingThrowable(PRBootstrap.java:408)
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethodPropagatingThrowable(AppServerBridgeToPega.java:223)
at com.pega.pegarules.boot.internal.extbridge.AppServerBridgeToPega.invokeMethod(AppServerBridgeToPega.java:272)
at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doPost(WebStandardBoot.java:121)
at com.pega.pegarules.internal.web.servlet.WebStandardBoot.doGet(WebStandardBoot.java:92)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:193)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
at com.pega.pegarules.integration.engine.internal.ServiceHelper.getOutboundClipboardValue(ServiceHelper.java:3464)
at com.pega.pegarules.integration.engine.internal.ServiceHelper.getOutboundDataValue(ServiceHelper.java:2504)
at com.pega.pegarules.integration.engine.internal.ServiceHelper.mapOutboundData(ServiceHelper.java:2430)
at com.pega.pegarules.integration.engine.internal.util.PRServiceUtils.mapOutboundData(PRServiceUtils.java:1300)

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Posted: 9 years ago
Posted: 8 Oct 2015 8:40 EDT
Kumar (VipinKumar38163630)

Thanks Joel. So the 'Text' property type works but ValueList and PageList property types don't. The error message seems to suggest that it does expect the format to be String and the Engine doesn't internally do any transformation.

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Posted: 9 years ago
Posted: 8 Oct 2015 20:09 EDT
Joel McLeish (JoelMcLeish)
PEGA
Senior Director, Service Assurance
Pegasystems Inc.
AU

It does transformation in instances where you point to a page.

That is, it will happily encode a JSON Object from a page; the issue here is that I am trying to output a JSON array directly from a specific Clipboard Property.

Whilst it is completely valid according to JSON.org to have an ordered list of values not contained in an object, it's looking increasingly likely that Pega only supports JSON Objects.

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Posted: 9 years ago
Posted: 7 Oct 2015 18:01 EDT
Joel McLeish (JoelMcLeish)
PEGA
Senior Director, Service Assurance
Pegasystems Inc.
AU

Morning Vipin,

Mostly correct, the property types attempted have been ValueList and PageList (SingleValue-Text). Data Transform config attached.

Data Transform.png

And correct, in each case using this property as the MapFrom in the POST configuration in the REST Connector (attached)

REST Connector.png

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