/**
* If a pair between the source and destination containers already exists - update it. If one
* doesn't exist - create a new one
*
* @param source
* @param dest
* @param containerPairUuid
* @param f
* @return
*/
public static ContainerPair createOrUpdateContainerPair(
VirtualMachine source, VirtualMachine dest, String containerPairUuid, float f) {
if (logger.isTraceEnabled())
logger.trace(
"Discovered "
+ f
+ " Flow between "
+ source.getDisplayName()
+ " and "
+ dest.getDisplayName());
ContainerPair pair = null;
// Go over all of the Flow commodities bought by either the source or the destination and look
// for a pair containing these two entities
for (Commodity comm : source.getCommoditiesBought()) {
if (PodUtil.isInstanceOfFlow(comm)) {
EList<ContainerPair> communicationMat = source.getCommunicationMatrix();
for (ContainerPair cp : communicationMat) {
// If a pair already exists between these two entities, update the traffic value
if (cp.getObjectId().equals(containerPairUuid)) {
updateTrafficValue(cp, f);
pair = cp;
}
}
FlowImpl flow = (FlowImpl) comm;
flow.calculateUsed();
}
}
for (Commodity comm : dest.getCommoditiesBought()) {
if (PodUtil.isInstanceOfFlow(comm)) {
FlowImpl flow = (FlowImpl) comm;
flow.calculateUsed();
}
}
if (pair != null) {
return pair;
}
// If an existing pair was not found, create a new one with the relevant traffic
ContainerPair vmPair = new ContainerPair(source, dest);
vmPair.setTrafficAmount(f);
// Attach the new pair to the communication matrix of both the source and the destination
updateContainerCommunicationMatrix(source, vmPair);
updateContainerCommunicationMatrix(dest, vmPair);
return vmPair;
}
/**
* Update the container pair list inside the monitoring extension, adding the entry to the list
*
* @param source The container we want to add the pair to
* @param vmPair The container pair we want to add
*/
public static void updateContainerCommunicationMatrix(
VirtualMachine source, ContainerPair vmPair) {
for (Commodity comm : source.getCommoditiesBought()) {
if (PodUtil.isInstanceOfFlow(comm)) {
// For each flow commodity bought by the container update the communication matrix
EList<ContainerPair> communicationMat = source.getCommunicationMatrix();
communicationMat.add(vmPair);
}
}
}