Pavlin Radoslavov | 295b296 | 2014-10-23 01:12:41 -0700 | [diff] [blame] | 1 | package org.onlab.onos.metrics.intent.cli; |
| 2 | |
| 3 | import java.util.List; |
| 4 | |
| 5 | import com.fasterxml.jackson.databind.JsonNode; |
| 6 | import com.fasterxml.jackson.databind.ObjectMapper; |
| 7 | import com.fasterxml.jackson.databind.node.ArrayNode; |
| 8 | import com.fasterxml.jackson.databind.node.ObjectNode; |
| 9 | import org.apache.karaf.shell.commands.Command; |
| 10 | import org.onlab.onos.cli.AbstractShellCommand; |
| 11 | import org.onlab.onos.metrics.intent.IntentMetricsService; |
| 12 | import org.onlab.onos.net.intent.IntentEvent; |
| 13 | |
| 14 | /** |
| 15 | * Command to show the list of last intent events. |
| 16 | */ |
| 17 | @Command(scope = "onos", name = "intents-events", |
| 18 | description = "Lists the last intent events") |
| 19 | public class IntentEventsListCommand extends AbstractShellCommand { |
| 20 | |
| 21 | private static final String FORMAT_EVENT = "Event=%s"; |
| 22 | |
| 23 | @Override |
| 24 | protected void execute() { |
| 25 | IntentMetricsService service = get(IntentMetricsService.class); |
| 26 | |
| 27 | if (outputJson()) { |
| 28 | print("%s", json(service.getEvents())); |
| 29 | } else { |
| 30 | for (IntentEvent event : service.getEvents()) { |
| 31 | print(FORMAT_EVENT, event); |
| 32 | print(""); // Extra empty line for clarity |
| 33 | } |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | /** |
| 38 | * Produces a JSON array of intent events. |
| 39 | * |
| 40 | * @param intentEvents the intent events with the data |
| 41 | * @return JSON array with the intent events |
| 42 | */ |
| 43 | private JsonNode json(List<IntentEvent> intentEvents) { |
| 44 | ObjectMapper mapper = new ObjectMapper(); |
| 45 | ArrayNode result = mapper.createArrayNode(); |
| 46 | |
| 47 | for (IntentEvent event : intentEvents) { |
| 48 | result.add(json(mapper, event)); |
| 49 | } |
| 50 | return result; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Produces JSON object for a intent event. |
| 55 | * |
| 56 | * @param mapper the JSON object mapper to use |
| 57 | * @param intentEvent the intent event with the data |
| 58 | * @return JSON object for the intent event |
| 59 | */ |
| 60 | private ObjectNode json(ObjectMapper mapper, IntentEvent intentEvent) { |
| 61 | ObjectNode result = mapper.createObjectNode(); |
| 62 | |
| 63 | result.put("time", intentEvent.time()) |
| 64 | .put("type", intentEvent.type().toString()) |
| 65 | .put("event", intentEvent.toString()); |
| 66 | return result; |
| 67 | } |
| 68 | } |