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From jburwell <...@git.apache.org>
Subject [GitHub] cloudstack pull request #1786: CLOUDSTACK-9618: Load Balancer configuration ...
Date Thu, 01 Dec 2016 16:52:59 GMT
Github user jburwell commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/1786#discussion_r90487461
  
    --- Diff: plugins/network-elements/netscaler/src/com/cloud/network/element/NetscalerElement.java
---
    @@ -260,7 +264,7 @@ public boolean applyLBRules(Network config, List<LoadBalancingRule>
rules) throw
             Map<Capability, String> lbCapabilities = new HashMap<Capability, String>();
     
             // Specifies that the RoundRobin and Leastconn algorithms are supported for load
balancing rules
    -        lbCapabilities.put(Capability.SupportedLBAlgorithms, "roundrobin,leastconn");
    +        lbCapabilities.put(Capability.SupportedLBAlgorithms, "roundrobin,leastconn,source");
    --- End diff --
    
    The list of strings declared on this line must be sync with the list used to validate
the algorithm on line 237.  Therefore, please consider extracting this list to a constant
`ImmutableSet<String>`, `SUPPORTED_ALGORITHMS` in order to ensure cohesion between declaration
and validation.  With this change, the validateLBRule can be re-implemented as follows:
    
    ```java
    public boolean validateLBRule(Network network, LoadBalancingRule rule) {
        Preconditions.checkArgument(network != null, "validateLBRule requires a non-null network");
        Preconditions.checkArgument(rule != null, "validateLBRule requires a non-null rule");
    
        return (canHandle(network, Service.Lb)) : SUPPORTED_ALGORITHMS.contains(rule.getAlgorithm())
: true;
    }
    ```
    
    This line can be re-implemented as follows:
    
    ```java
    lbCapabilities.put(Capability.SupportedLBAlgorithms, Joiner.on(",").join(SUPPORTED_ALGORITHMS));
    ```


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