Update CMISSessionFacade.java

Hi, this piece of code causes two calls in a row for content stream. Result of 
document.getContentStream() has to be stored and used where is needed, not to 
call document.getContentStream() in condition and than again in return 
statement.

Project: http://git-wip-us.apache.org/repos/asf/camel/repo
Commit: http://git-wip-us.apache.org/repos/asf/camel/commit/5f734e81
Tree: http://git-wip-us.apache.org/repos/asf/camel/tree/5f734e81
Diff: http://git-wip-us.apache.org/repos/asf/camel/diff/5f734e81

Branch: refs/heads/camel-2.19.x
Commit: 5f734e810c574fc79418cb30ee41967d25060189
Parents: 9d41626
Author: Tomáš Burian <tomas.bur...@lundegaard.eu>
Authored: Wed May 31 15:06:01 2017 +0200
Committer: Claus Ibsen <davscl...@apache.org>
Committed: Thu Jun 1 09:11:48 2017 +0200

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 .../java/org/apache/camel/component/cmis/CMISSessionFacade.java | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/camel/blob/5f734e81/components/camel-cmis/src/main/java/org/apache/camel/component/cmis/CMISSessionFacade.java
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diff --git 
a/components/camel-cmis/src/main/java/org/apache/camel/component/cmis/CMISSessionFacade.java
 
b/components/camel-cmis/src/main/java/org/apache/camel/component/cmis/CMISSessionFacade.java
index 7b47e69..d143d7c 100644
--- 
a/components/camel-cmis/src/main/java/org/apache/camel/component/cmis/CMISSessionFacade.java
+++ 
b/components/camel-cmis/src/main/java/org/apache/camel/component/cmis/CMISSessionFacade.java
@@ -182,8 +182,9 @@ public class CMISSessionFacade {
 
     public InputStream getContentStreamFor(QueryResult item) {
         Document document = getDocument(item);
-        if (document != null && document.getContentStream() != null) {
-            return document.getContentStream().getStream();
+        ContentStream contentStream = document.getContentStream();
+        if (document != null && contentStream != null) {
+            return contentStream.getStream();
         }
         return null;
     }

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