@BigDBQuery
public static Object getDeviceOracle(@BigDBParam("query") Query query) throws BigDBException {
String entityClassName = null;
assert query.getSteps() != null;
assert query.getSteps().size() == 1;
assert query.getStep(0).getName().equals(CURRENT_STEP_NAME);
Step currentStep = query.getStep(0);
final String id = currentStep.getExactMatchPredicateString(ID_FIELD_NAME);
String macStr = currentStep.getExactMatchPredicateString(MAC_FIELD_NAME);
Long vlanObj = (Long) currentStep.getExactMatchPredicateValue(VLAN_FIELD_NAME);
entityClassName = currentStep.getExactMatchPredicateString(ENTITY_CLASS_FIELD_NAME);
String dpidStr = currentStep.getExactMatchPredicateString(SWITCH_DPID_FIELD_NAME);
Short portShort = (Short) currentStep.getExactMatchPredicateValue(SWITCH_PORT_FIELD_NAME);
String ipStr = currentStep.getExactMatchPredicateString(IP_ADDRESS_FIELD_NAME);
if (id != null && (macStr != null || vlanObj != null || entityClassName != null)) {
throw new BigDBException(
"This query only accepts a device id or "
+ "a combination of mac, vlan and entity-class-name, "
+ "but not both.");
}
if (id != null) {
// convert from device-id to individual components
try {
IndexedEntity.EntityWithClassName e = IndexedEntity.getNamedEntityFromKeyString(id);
DeviceOracle d =
new DeviceOracle(
id,
e.getEntity().getMacAddress(),
e.getEntity().getVlan(),
e.getEntityClassName(),
e.getEntity().getIpv4Address(),
e.getEntity().getSwitchDPID(),
e.getEntity().getSwitchPort());
ArrayList<DeviceOracle> dd = new ArrayList<DeviceOracle>();
dd.add(d);
return dd;
} catch (Exception e) {
throw new BigDBException("Invalid device id " + id);
}
} else if (macStr != null && entityClassName != null) {
DeviceOracle d =
createDeviceOracle(macStr, vlanObj, entityClassName, ipStr, dpidStr, portShort);
ArrayList<DeviceOracle> dd = new ArrayList<DeviceOracle>();
dd.add(d);
return dd;
} else {
throw new BigDBException(
"This query requires a device id or a "
+ "combination of mac, vlan and entity-class-name");
}
}
