Douglas Schilling Landgraf has posted comments on this change.

Change subject: core: Adding RpmVersion utils
......................................................................


Patch Set 7:

(3 comments)

....................................................
File 
backend/manager/modules/common/src/main/java/org/ovirt/engine/core/common/utils/RpmVersionUtils.java
Line 16:      *          0 - if two parts are equals
Line 17:      *          1 - if the 1st argument is bigger than the 2nd
Line 18:      *         -1 - if the 1st argument is smaller than the 2nd
Line 19:      */
Line 20:     public static int compareRpmPart(String part1, String part2) {
Hi Yair, 

Let's say the values arrived here as:

part1 = 20130212.0.fc18
part2 = 20130212.fc18

From:
ISO has: ovirt-node-iso-2.6.0-20130212.0.fc18.iso
Host has: oVirt Node 2.6.0 20130212.fc18

ISO has revision build higher then host and it will drop into else statement. 
My comment continue on else.
Line 21:         String[] comps1 = part1.split("\\.");
Line 22:         String[] comps2 = part2.split("\\.");
Line 23:         int i = 0;
Line 24:         while (i < comps1.length && i < comps2.length && 
comps1[i].equals(comps2[i])) {


Line 36:         else {
Line 37:             try
Line 38:             {
Line 39:                 Long result1 = Long.parseLong(comps1[i]);
Line 40:                 Long result2 = Long.parseLong(comps2[i]);
it parses to:

comps1[0] = 20130212
comps1[1] = 0
comps1[2] = fc18

comps2[0] = 20130212
comps2[1] = fc18
Line 41:                 return result1.compareTo(result2);
Line 42:             } catch (NumberFormatException ex) {
Line 43:                 return comps1[i].compareTo(comps2[i]);
Line 44:             }


Line 38:             {
Line 39:                 Long result1 = Long.parseLong(comps1[i]);
Line 40:                 Long result2 = Long.parseLong(comps2[i]);
Line 41:                 return result1.compareTo(result2);
Line 42:             } catch (NumberFormatException ex) {
When comparing (comps1[1]) 0 to (comps2[1]) fc18 it retuns negative value. So 
users won't receive the alert for cases like that. Please correct me if I am 
wrong.
Line 43:                 return comps1[i].compareTo(comps2[i]);
Line 44:             }
Line 45:         }
Line 46:     }


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ia82d09e755b767f254224c84abd16516592715ac
Gerrit-PatchSet: 7
Gerrit-Project: ovirt-engine
Gerrit-Branch: master
Gerrit-Owner: Yair Zaslavsky <yzasl...@redhat.com>
Gerrit-Reviewer: Daniel Erez <de...@redhat.com>
Gerrit-Reviewer: Douglas Schilling Landgraf <dougsl...@redhat.com>
Gerrit-Reviewer: Vojtech Szocs <vsz...@redhat.com>
Gerrit-Reviewer: Yair Zaslavsky <yzasl...@redhat.com>
Gerrit-Reviewer: Yaniv Bronhaim <ybron...@redhat.com>
Gerrit-Reviewer: oVirt Jenkins CI Server
Gerrit-HasComments: Yes
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