public Observable<AwsState> pollForInstanceState(final String loadBalancer) { try { return Observable.from(elbAsyncClient.describeInstanceHealthAsync(new DescribeInstanceHealthRequest().withLoadBalancerName(loadBalancer).withInstances(new Instance().withInstanceId(instanceId)))) .flatMap(result -> { Optional<InstanceState> state = result.getInstanceStates().stream().filter(i -> i.getInstanceId().equals(instanceId)).findFirst(); return just(state.map(instanceState -> AwsState.map(instanceState.getState())).orElse(AwsState.UNKNOWN)); }); } catch (AmazonClientException e) { LOG.error(LogConstants.ERROR_EXECUTING_REQUEST, e); throw new AwsException(e); } }
public void updateInstanceState(Ec2Instance instance, List<String> loadBalancerNames) { for (String elb : loadBalancerNames) { DescribeInstanceHealthResult result = awsElbClient.describeInstanceHealth(new DescribeInstanceHealthRequest(elb)); Optional<InstanceState> state = result.getInstanceStates().stream().filter(s -> s.getInstanceId().equals(instance.getInstanceId())).findFirst(); if (!state.isPresent()) { instance.updateState(AwsState.UNKNOWN); } else { instance.updateState(AwsState.valueOf(state.get().getState().toUpperCase())); } } }
private void updateInstancesStateOnLoadBalancer(String loadBalancerName, List<Ec2Instance> instances) { DescribeInstanceHealthResult result = awsElbClient.describeInstanceHealth(new DescribeInstanceHealthRequest(loadBalancerName)); instances.forEach(i -> result.getInstanceStates().stream().filter(s -> s.getInstanceId().equals(i.getInstanceId())).findFirst().ifPresent(s -> i.updateState(AwsState.map(s.getState())))); }
public boolean checkInstanceInServiceOnAllElb(Instance newInstance, List<String> loadBalancerNames) { if (newInstance == null) { throw new IllegalStateException("Unable to check null instance"); } for (String elb : loadBalancerNames) { DescribeInstanceHealthResult result = awsElbClient.describeInstanceHealth(new DescribeInstanceHealthRequest(elb)); Optional<InstanceState> state = result.getInstanceStates().stream().filter(s -> s.getInstanceId().equals(newInstance.getInstanceId())).findFirst(); if (!state.isPresent()) { log.info("instance state for instance " + newInstance.getInstanceId() + " on elb " + elb + " is unknown"); return false; } log.info("instance state for instance " + newInstance.getInstanceId() + " on elb " + elb + " is " + state.get().getState()); if (!"InService".equals(state.get().getState())) { return false; } } return true; }