Github user jburwell commented on a diff in the pull request: https://github.com/apache/cloudstack/pull/1371#discussion_r62756570 --- Diff: api/src/org/apache/cloudstack/api/command/user/vpc/CreateVPCCmd.java --- @@ -143,7 +149,17 @@ public Boolean getDisplayVpc() { @Override public void create() throws ResourceAllocationException { - Vpc vpc = _vpcService.createVpc(getZoneId(), getVpcOffering(), getEntityOwnerId(), getVpcName(), getDisplayText(), getCidr(), getNetworkDomain(), getDisplayVpc()); + Vpc vpc; + if (_vpcService.isVpcOfferingDynamicallyRouted(getZoneId(), getVpcOffering())) { + try { + vpc = _vpcService.createDynamicVpc(getZoneId(), getVpcOffering(), getEntityOwnerId(), getVpcName(), getDisplayText(), getNetmask(), getNetworkDomain(), + getDisplayVpc()); + } catch (BadCIDRException e) { + throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to create a VPC due to invalid CIDR"); + } + } else { + vpc = _vpcService.createVpc(getZoneId(), getVpcOffering(), getEntityOwnerId(), getVpcName(), getDisplayText(), getCidr(), getNetworkDomain(), getDisplayVpc()); + } --- End diff -- Why not perform this check in the ``vpcService.createVpc`` method? This construct feels like a leak of the business rule. It might make sense to create a VPC interface and factory that creates the appropriate type (static vs dynamic VPC). The ``_vpcService`` could then provide polymorphic implementations of ``createVPC`` -- letting the compiler handle the variance for service clients.
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