Gday
Currently having a look at camel to receive, transform, and validate some
files prior to uploading to a existing system.
The idea is a system uploads binary data files to a directory which camel
will consume. These files never expire and need to moved through a pipeline
will transform them, do some validation and then transport them to a retro
system using FTP. So far Camel has done an excellent job of doing this.
However I have run into an interesting dilemma relating to the current
redelivery policy. When we started testing the idea network outages showed
up an interesting issue. As far as I can see it only supports a retry count
being set that defines a count of tries and a couple back off strategies. In
my case however I would like it to try to retransmit until it is delivered.
To test this I have made a small change in the code.
==== START PATCH ====
Index:
camel-core/src/main/java/org/apache/camel/processor/RedeliveryPolicy.java
===================================================================
---
camel-core/src/main/java/org/apache/camel/processor/RedeliveryPolicy.java
(revision 608236)
+++
camel-core/src/main/java/org/apache/camel/processor/RedeliveryPolicy.java
(working copy)
@@ -30,6 +30,9 @@
* @version $Revision$
*/
public class RedeliveryPolicy implements Cloneable, Serializable {
+
+ public static int UNLIMITED_REDELIVERIES = -1;
+
protected static transient Random randomNumberGenerator;
protected int maximumRedeliveries = 6;
protected long initialRedeliveryDelay = 1000L;
@@ -60,7 +63,14 @@
* redelivered
*/
public boolean shouldRedeliver(int redeliveryCounter) {
- return redeliveryCounter < getMaximumRedeliveries();
+
+ // infinite retries is represented by UNLIMITED_REDELIVERIES
+ if (getMaximumRedeliveries() == UNLIMITED_REDELIVERIES){
+ return true;
+ } else {
+ return redeliveryCounter < getMaximumRedeliveries();
+ }
+
}
// Builder methods
==== END PATCH ====
Currently this is quite a simple hack. If people see the value of this
change I would be happy to build a couple of tests and add it to Jira.
Regards
Mark Wolfe
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