/**
 * Create Vpc Action Sample
 * Creates a VPC with the CIDR block you specify. The smallest VPC you can create
 * uses a /28 netmask (16 IP addresses), and the largest uses a /18 netmask
 * (16,384 IP addresses). To help you decide how big to make your VPC, go
 * to the topic about creating VPCs  in the Amazon Virtual Private Cloud
 * Developer Guide.
 * By default, each instance you launch in the VPC has the default DHCP options
 * (the standard EC2 host name, no domain name, no DNS server, no NTP server, and
 * no NetBIOS server or node type).
 * AWS might delete any VPC that you create with this operation if you leave it inactive
 * for an extended period of time (inactive means that there are no running Amazon EC2
 * instances in the VPC).  
 * @param Amazon_EC2_Interface $service instance of Amazon_EC2_Interface
 * @param mixed $request Amazon_EC2_Model_CreateVpc or array of parameters
 */
function invokeCreateVpc(Amazon_EC2_Interface $service, $request)
{
    try {
        $response = $service->createVpc($request);
        echo "Service Response\n";
        echo "=============================================================================\n";
        echo "        CreateVpcResponse\n";
        if ($response->isSetResponseMetadata()) {
            echo "            ResponseMetadata\n";
            $responseMetadata = $response->getResponseMetadata();
            if ($responseMetadata->isSetRequestId()) {
                echo "                RequestId\n";
                echo "                    " . $responseMetadata->getRequestId() . "\n";
            }
        }
        if ($response->isSetCreateVpcResult()) {
            echo "            CreateVpcResult\n";
            $createVpcResult = $response->getCreateVpcResult();
            if ($createVpcResult->isSetVpc()) {
                echo "                Vpc\n";
                $vpc = $createVpcResult->getVpc();
                if ($vpc->isSetVpcId()) {
                    echo "                    VpcId\n";
                    echo "                        " . $vpc->getVpcId() . "\n";
                }
                if ($vpc->isSetVpcState()) {
                    echo "                    VpcState\n";
                    echo "                        " . $vpc->getVpcState() . "\n";
                }
                if ($vpc->isSetCidrBlock()) {
                    echo "                    CidrBlock\n";
                    echo "                        " . $vpc->getCidrBlock() . "\n";
                }
                if ($vpc->isSetDhcpOptionsId()) {
                    echo "                    DhcpOptionsId\n";
                    echo "                        " . $vpc->getDhcpOptionsId() . "\n";
                }
            }
        }
    } catch (Amazon_EC2_Exception $ex) {
        echo "Caught Exception: " . $ex->getMessage() . "\n";
        echo "Response Status Code: " . $ex->getStatusCode() . "\n";
        echo "Error Code: " . $ex->getErrorCode() . "\n";
        echo "Error Type: " . $ex->getErrorType() . "\n";
        echo "Request ID: " . $ex->getRequestId() . "\n";
        echo "XML: " . $ex->getXML() . "\n";
    }
}