@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (obj instanceof InstanceStateChange == false) return false;
InstanceStateChange other = (InstanceStateChange) obj;
if (other.getInstanceId() == null ^ this.getInstanceId() == null) return false;
if (other.getInstanceId() != null
&& other.getInstanceId().equals(this.getInstanceId()) == false) return false;
if (other.getCurrentState() == null ^ this.getCurrentState() == null) return false;
if (other.getCurrentState() != null
&& other.getCurrentState().equals(this.getCurrentState()) == false) return false;
if (other.getPreviousState() == null ^ this.getPreviousState() == null) return false;
if (other.getPreviousState() != null
&& other.getPreviousState().equals(this.getPreviousState()) == false) return false;
return true;
}
private void printStateChanges(TerminateInstancesResult tir) {
List<InstanceStateChange> states = tir.getTerminatingInstances();
out.println("Terminated " + states.size() + " instances:");
for (InstanceStateChange state : states) {
out.println(
state.getInstanceId()
+ ": "
+ state.getPreviousState()
+ " -> "
+ state.getCurrentState());
}
}
// Terminates an instances and returns a list of terminated instance ids.
public static List<String> terminateInstances(AmazonEC2 ec2, Collection<String> ids) {
for (String id : ids) {
logger.info("Terminating instance id: " + id);
}
TerminateInstancesRequest request = new TerminateInstancesRequest();
request.setInstanceIds(ids);
ArrayList<String> terminated = new ArrayList<String>();
for (InstanceStateChange state : ec2.terminateInstances(request).getTerminatingInstances()) {
terminated.add(state.getInstanceId());
}
return terminated;
}