private void updateOMSPorts(int numChls, ConnectPoint srcCp, ConnectPoint dstCp) {
// round down to largest slot that allows numChl channels to fit into C band range
ChannelSpacing chl = null;
Frequency perChl = TOTAL.floorDivision(numChls);
for (int i = 0; i < ChannelSpacing.values().length; i++) {
Frequency val = ChannelSpacing.values()[i].frequency();
if (val.isLessThan(perChl)) {
chl = ChannelSpacing.values()[i];
break;
}
}
if (chl == null) {
chl = ChannelSpacing.CHL_6P25GHZ;
}
// if true, there was less channels than can be tightly packed.
Frequency grid = chl.frequency();
// say Linc's 1st slot starts at CENTER and goes up from there.
Frequency min = CENTER.add(grid);
Frequency max = CENTER.add(grid.multiply(numChls));
PortDescription srcPortDesc = new OmsPortDescription(srcCp.port(), true, min, max, grid);
PortDescription dstPortDesc = new OmsPortDescription(dstCp.port(), true, min, max, grid);
descriptions.put(srcCp, srcPortDesc);
descriptions.put(dstCp, dstPortDesc);
deviceProviderService.portStatusChanged(srcCp.deviceId(), srcPortDesc);
deviceProviderService.portStatusChanged(dstCp.deviceId(), dstPortDesc);
}
// uses 'bandwidth' annotation to determine the channel spacing.
private void updateOchPort(double bw, ConnectPoint srcCp, ConnectPoint dstCp) {
Device src = deviceService.getDevice(srcCp.deviceId());
Device dst = deviceService.getDevice(dstCp.deviceId());
// bandwidth in MHz (assuming Hz - linc is not clear if that or Mb).
Frequency spacing = Frequency.ofMHz(bw);
// channel bandwidth is smaller than smallest standard channel spacing.
ChannelSpacing chsp = null;
if (spacing.compareTo(ChannelSpacing.CHL_6P25GHZ.frequency()) <= 0) {
chsp = ChannelSpacing.CHL_6P25GHZ;
}
for (int i = 1; i < ChannelSpacing.values().length; i++) {
Frequency val = ChannelSpacing.values()[i].frequency();
// pick the next highest or equal channel interval.
if (val.isLessThan(spacing)) {
chsp = ChannelSpacing.values()[i - 1];
break;
}
}
if (chsp == null) {
log.warn("Invalid channel spacing ({}), can't configure port(s)", spacing);
return;
}
OchSignal signal = new OchSignal(GridType.DWDM, chsp, 1, 1);
if (src.type() == Device.Type.ROADM) {
PortDescription portDesc =
new OchPortDescription(srcCp.port(), true, OduSignalType.ODU4, true, signal);
descriptions.put(srcCp, portDesc);
deviceProviderService.portStatusChanged(srcCp.deviceId(), portDesc);
}
if (dst.type() == Device.Type.ROADM) {
PortDescription portDesc =
new OchPortDescription(dstCp.port(), true, OduSignalType.ODU4, true, signal);
descriptions.put(dstCp, portDesc);
deviceProviderService.portStatusChanged(dstCp.deviceId(), portDesc);
}
}