feat: Select a VM in a fixed position for a given Cloudlet in Network…

…VmsExampleWorkflowApp

Signed-off-by: Manoel Campos <manoelcampos@gmail.com>

src/main/java/org/cloudbus/cloudsim/examples/network/applications/NetworkVmExampleAbstract.java

@@ -9,7 +9,6 @@
 import org.cloudsimplus.cloudlets.network.NetworkCloudlet;
 import org.cloudsimplus.core.CloudSimPlus;
 import org.cloudsimplus.datacenters.network.NetworkDatacenter;
-import org.cloudsimplus.distributions.UniformDistr;
 import org.cloudsimplus.hosts.network.NetworkHost;
 import org.cloudsimplus.network.switches.AggregateSwitch;
 import org.cloudsimplus.network.switches.EdgeSwitch;
@@ -261,33 +260,17 @@ private List<NetworkHost> getDatacenterHostList() {
         return datacenter.getHostList();
     }
 
-    /**
-     * Randomly select a given number of VMs from the list of created VMs,
-     * to be used by the NetworkCloudlets of the given application.
-     *
-     * @param vmsToSelect number of VMs to selected from the existing list of VMs.
-     * @return The list of randomly selected VMs
-     */
-    protected List<NetworkVm> randomlySelectVmsForApp(int vmsToSelect) {
-        final var netVmList = new ArrayList<NetworkVm>();
-        final int existingVms = this.vmList.size();
-        final var rand = new UniformDistr(0, existingVms, 5);
-        for (int i = 0; i < vmsToSelect; i++) {
-            final int vmIndex = (int)rand.sample() % vmList.size();
-            final NetworkVm vm = vmList.get(vmIndex);
-            netVmList.add(vm);
-        }
-
-        return netVmList;
-    }
-
     /**
      * @return List of VMs of all Brokers.
      */
     public List<NetworkVm> getVmList() {
         return vmList;
     }
 
+    public NetworkVm getVm(final int i) {
+        return vmList.get(i);
+    }
+
     public NetworkDatacenter getDatacenter() {
         return datacenter;
     }

src/main/java/org/cloudbus/cloudsim/examples/network/applications/NetworkVmsExampleWorkflowApp.java

@@ -33,10 +33,8 @@ private NetworkVmsExampleWorkflowApp(){
     @Override
     public List<NetworkCloudlet> createNetworkCloudlets(final DatacenterBroker broker) {
         final var networkCloudlets = new NetworkCloudlet[3];
-        final List<NetworkVm> selectedVms = randomlySelectVmsForApp(networkCloudlets.length);
-
         for(int i = 0; i < networkCloudlets.length; i++){
-            networkCloudlets[i] = createNetworkCloudlet(i, selectedVms.get(i), broker);
+            networkCloudlets[i] = createNetworkCloudlet(i, getVm(i));
             System.out.printf(
                 "Created NetworkCloudlet %d for %s (broker %d)%n",
                 networkCloudlets[i].getId(), broker.getName(), broker.getId());