Sample Java code for the Amazon Health API
The following Java code examples demonstrate how to initialize an Amazon Health client and retrieve information about events and entities.
Step 1: Initialize credentials
Valid credentials are required to communicate with the Amazon Health API. You can use the key pair of any IAM user associated with the Amazon account.
Create and initialize an AWSCredentials instance:
AWSCredentials credentials = null; try { credentials = new ProfileCredentialsProvider("default").getCredentials(); } catch (Exception e) { throw new AmazonClientException( "Cannot load the credentials from the credential profiles file. " + "Please make sure that your credentials file is at the correct " + "location (/home/username/.aws/credentials), and is in valid format.", e); }
Step 2: Initialize an Amazon Health API client
Use the initialized credentials object from the previous step to create an Amazon Health client:
import com.amazonaws.services.health.AWSHealthClient; AWSHealth awsHealthClient = new AWSHealthClient(credentials);
Step 3: Use Amazon Health API operations to get event information
DescribeEvents
import com.amazonaws.services.health.model.DescribeEventsRequest; import com.amazonaws.services.health.model.DescribeEventsResult; import com.amazonaws.services.health.model.Event; import com.amazonaws.services.health.model.EventFilter; DescribeEventsRequest request = new DescribeEventsRequest(); EventFilter filter = new EventFilter(); // Filter on any field from the supported Amazon Health EventFilter model. // Here is an example for Region cn-northwest-1 events from the EC2 service. filter.setServices(singletonList("EC2")); filter.setRegions(singletonList("cn-northwest-1")); request.setFilter(filter); DescribeEventsResult response = awsHealthClient.describeEvents(request); List<Event> resultEvents = response.getEvents(); Event currentEvent = null; for (Event event : resultEvents) { // Display result event data; here is a subset. System.out.println(event.getArn()); System.out.println(event.getService()); System.out.println(event.getRegion()); System.out.println(event.getAvailabilityZone()); System.out.println(event.getStartTime()); System.out.println(event.getEndTime()); }
DescribeEventAggregates
import com.amazonaws.services.health.model.DescribeEventAggregatesRequest; import com.amazonaws.services.health.model.DescribeEventAggregatesResult; import com.amazonaws.services.health.model.EventAggregate; import com.amazonaws.services.health.model.EventFilter; DescribeEventAggregatesRequest request = new DescribeEventAggregatesRequest(); // set the aggregation field request.setAggregateField("eventTypeCategory"); // filter more on result if needed EventFilter filter = new EventFilter(); filter.setRegions(singleton("cn-northwest-1")); request.setFilter(filter); DescribeEventAggregatesResult response = awsHealthClient.describeEventAggregates(request); // print event count for each eventTypeCategory for (EventAggregate aggregate: response.getEventAggregates()) { System.out.println("Event Category:" + aggregate.getAggregateValue()); System.out.println("Event Count:" + aggregate.getCount()); }
DescribeEventDetails
import com.amazonaws.services.health.model.DescribeEventDetailsRequest; import com.amazonaws.services.health.model.DescribeEventDetailsResult; import com.amazonaws.services.health.model.Event; import com.amazonaws.services.health.model.EventDetails; DescribeEventDetailsRequest describeEventDetailsRequest = new DescribeEventDetailsRequest(); // set event ARN and local value describeEventDetailsRequest.setEventArns(singletonList("arn:aws:health:cn-northwest-1::event/
service
/eventTypeCode
/eventId
")); describeEventDetailsRequest.setLocale("en-US"); filter.setEventArns DescribeEventDetailsResult describeEventDetailsResult = awsHealthClient.describeEventDetails(request); EventDetails eventDetail = describeEventDetailsResult.getSuccessfulSet().get(0); // check event-related fields Event event = eventDetail.getEvent(); System.out.println(event.getService()); System.out.println(event.getRegion()); System.out.println(event.getAvailabilityZone()); System.out.println(event.getStartTime()); System.out.println(event.getEndTime()); // print out event description System.out.println(eventDetail.getEventDescription().getLatestDescription());
DescribeAffectedEntities
import com.amazonaws.services.health.model.AffectedEntity; import com.amazonaws.services.health.model.DateTimeRange; import com.amazonaws.services.health.model.DescribeAffectedEntitiesRequest; import com.amdescribeEventDetailsRequestazonaws.services.health.model.DescribeAffectedEntitiesResult; DescribeAffectedEntitiesRequest request = new DescribeAffectedEntitiesRequest(); EntityFilter filter = new EntityFilter(); filter.setEventArns(singletonList("arn:aws:health:cn-northwest-1::event/
service
/eventTypeCode
/eventId
")); DescribeAffectedEntitiesResult response = awsHealthClient.describeAffectedEntities(request); for (AffectedEntity affectedEntity: response.getEntities()) { System.out.println(affectedEntity.getEntityValue()); System.out.println(affectedEntity.getAwsAccountId()); System.out.println(affectedEntity.getEntityArn()); }
DescribeEntityAggregates
import com.amazonaws.services.health.model.DescribeEntityAggregatesRequest; import com.amazonaws.services.health.model.DescribeEntityAggregatesResult; import com.amazonaws.services.health.model.EntityAggregate; DescribeEntityAggregatesRequest request = new DescribeEntityAggregatesRequest(); request.setEventArns(singletonList("arn:aws:health:cn-northwest-1::event/
service
/eventTypeCode
/eventId
")); DescribeEntityAggregatesResult response = awsHealthClient.describeEntityAggregates(request); for (EntityAggregate entityAggregate : response.getEntityAggregates()) { System.out.println(entityAggregate.getEventArn()); System.out.println(entityAggregate.getCount()); }