[camel] branch master updated: CAMEL-13077: Fix polling return for empty OData ODataFeeds (#2719) Closes #2732

[dmvolod]

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dmvolod pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
     new f7d1025  CAMEL-13077: Fix polling return for empty OData ODataFeeds 
(#2719) Closes #2732
f7d1025 is described below

commit f7d102597776b8a2e1d95843931dba1df0e568e2
Author: phantomjinx <p.g.richard...@phantomjinx.co.uk>
AuthorDate: Thu Jan 24 11:54:19 2019 +0000

    CAMEL-13077: Fix polling return for empty OData ODataFeeds (#2719)
    Closes #2732
    
     * ApiConsumerHelper does not recognise ODataFeeds and thus defaults
       to return a constant 1. This means that the scheduling polling is never
       concluded to be idle and the backoffXXX consumer properties do not work.
    
     * If the ODataFeed is empty then return 0 to allow for backoffXXX
       properties
    
     * This is an equivalent change to that already committed for olingo4
       component.
---
 .../org/apache/camel/component/olingo2/Olingo2Consumer.java  | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git 
a/components/camel-olingo2/camel-olingo2-component/src/main/java/org/apache/camel/component/olingo2/Olingo2Consumer.java
 
b/components/camel-olingo2/camel-olingo2-component/src/main/java/org/apache/camel/component/olingo2/Olingo2Consumer.java
index 81763b0..ff2c294 100644
--- 
a/components/camel-olingo2/camel-olingo2-component/src/main/java/org/apache/camel/component/olingo2/Olingo2Consumer.java
+++ 
b/components/camel-olingo2/camel-olingo2-component/src/main/java/org/apache/camel/component/olingo2/Olingo2Consumer.java
@@ -19,13 +19,13 @@ package org.apache.camel.component.olingo2;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.CountDownLatch;
-
 import org.apache.camel.Processor;
 import org.apache.camel.RuntimeCamelException;
 import org.apache.camel.component.olingo2.api.Olingo2ResponseHandler;
 import org.apache.camel.component.olingo2.internal.Olingo2ApiName;
 import org.apache.camel.support.component.AbstractApiConsumer;
 import org.apache.camel.support.component.ApiConsumerHelper;
+import org.apache.olingo.odata2.api.ep.feed.ODataFeed;
 
 /**
  * The Olingo2 consumer.
@@ -81,7 +81,15 @@ public class Olingo2Consumer extends 
AbstractApiConsumer<Olingo2ApiName, Olingo2
                 throw error[0];
             }
 
-            return ApiConsumerHelper.getResultsProcessed(this, result[0], 
isSplitResult());
+            //
+            // Allow consumer idle properties to properly handle an empty 
polling response
+            //
+            if (result[0] instanceof ODataFeed && (((ODataFeed) 
result[0]).getEntries().isEmpty())) {
+                return 0;
+            } else {
+                int processed = ApiConsumerHelper.getResultsProcessed(this, 
result[0], isSplitResult());
+                return processed;
+            }
 
         } catch (Throwable t) {
             throw RuntimeCamelException.wrapRuntimeCamelException(t);