@Override
public VirtualNetworkFunctionRecord heal(
VirtualNetworkFunctionRecord virtualNetworkFunctionRecord,
VNFCInstance component,
String cause)
throws Exception {
if ("switchToStandby".equals(cause)) {
for (VirtualDeploymentUnit virtualDeploymentUnit : virtualNetworkFunctionRecord.getVdu()) {
for (VNFCInstance vnfcInstance : virtualDeploymentUnit.getVnfc_instance()) {
if (vnfcInstance.getId().equals(component.getId())
&& "standby".equalsIgnoreCase(vnfcInstance.getState())) {
log.debug("Activation of the standby component");
if (VnfmUtils.getLifecycleEvent(
virtualNetworkFunctionRecord.getLifecycle_event(), Event.START)
!= null) {
log.debug(
"Executed scripts for event START "
+ this.executeScriptsForEvent(
virtualNetworkFunctionRecord, component, Event.START));
}
log.debug("Changing the status from standby to active");
// This is inside the vnfr
vnfcInstance.setState("ACTIVE");
// This is a copy of the object received as parameter and modified.
// It will be sent to the orchestrator
component.setState("ACTIVE");
break;
}
}
}
} else if (VnfmUtils.getLifecycleEvent(
virtualNetworkFunctionRecord.getLifecycle_event(), Event.HEAL)
!= null) {
if (VnfmUtils.getLifecycleEvent(virtualNetworkFunctionRecord.getLifecycle_event(), Event.HEAL)
.getLifecycle_events()
!= null) {
log.debug("Heal method started");
log.info("-----------------------------------------------------------------------");
String output = "\n--------------------\n--------------------\n";
for (String result :
executeScriptsForEvent(virtualNetworkFunctionRecord, component, Event.HEAL, cause)) {
output +=
this.parser
.fromJson(result, JsonObject.class)
.get("output")
.getAsString()
.replaceAll("\\\\n", "\n");
output += "\n--------------------\n";
}
output += "\n--------------------\n";
log.info("Executed script for HEAL. Output was: \n\n" + output);
log.info("-----------------------------------------------------------------------");
}
}
return virtualNetworkFunctionRecord;
}
private String executeActionOnEMS(
String vduHostname,
String command,
VirtualNetworkFunctionRecord vnfr,
VNFCInstance vnfcInstance)
throws Exception {
log.trace("Sending message and waiting: " + command + " to " + vduHostname);
log.info("Waiting answer from EMS - " + vduHostname);
String response =
this.vnfmHelper.sendAndReceive(command, "vnfm." + vduHostname.toLowerCase() + ".actions");
log.debug("Received from EMS (" + vduHostname + "): " + response);
if (response == null) {
throw new NullPointerException("Response from EMS is null");
}
JsonObject jsonObject = this.parser.fromJson(response, JsonObject.class);
if (jsonObject.get("status").getAsInt() == 0) {
try {
log.debug("Output from EMS (" + vduHostname + ") is: " + jsonObject.get("output"));
} catch (Exception e) {
e.printStackTrace();
throw e;
}
} else {
String err = jsonObject.get("err").getAsString();
log.error(err);
vnfcInstance.setState("error");
saveLogToFile(
vnfr,
parser.fromJson(command, JsonObject.class).get("payload").getAsString(),
vnfcInstance,
response,
true);
throw new VnfmSdkException("EMS (" + vduHostname + ") had the following error: " + err);
}
return response;
}