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Support Article

Connect-REST fails to map response binary stream

SA-22559

Summary



User is on Pega 7.1.7 and is using the Connect-REST to get a binary stream as response. The response body is having a file binary data, which can be pdf, xlsx etc. While mapping the response body which is a binary stream to a Java object on clipboard they are getting the below exception:

com.pega.pegarules.pub.services.InboundMappingException: Could not write response entitiy to output stream


Error Messages



Caused by: java.io.IOException: Attempted read from closed stream.
at com.pega.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:166)
at com.pega.apache.http.impl.io.ContentLengthInputStream.read(ContentLengthInputStream.java:197)
at com.pega.apache.http.entity.BasicHttpEntity.writeTo(BasicHttpEntity.java:113)
at com.pega.apache.http.entity.HttpEntityWrapper.writeTo(HttpEntityWrapper.java:96)
at com.pega.apache.http.conn.BasicManagedEntity.writeTo(BasicManagedEntity.java:114)
at com.pega.pegarules.integration.engine.internal.connect.http.HTTPClient.getReponseData(HTTPClient.java:581)
... 69 more


Steps to Reproduce

  1. Create a REST service to return a binary file.
  2. Create a REST Connector in a Pega application to consume the binary response and map it to a Java object on clipboard. 
  3. Create a Data Page or Activity to run the connector.
  4. The mapping error occurs while running the connector.


Root Cause



A defect in Pegasystems’ code or rules is identified as the root cause of this issue.

Resolution



Apply HFix-27327.

 

Published April 29, 2016 - Updated October 8, 2020

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