| package org.onlab.onos.metrics.intent.cli; |
| |
| import java.util.List; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ArrayNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| import org.apache.karaf.shell.commands.Command; |
| import org.onlab.onos.cli.AbstractShellCommand; |
| import org.onlab.onos.metrics.intent.IntentMetricsService; |
| import org.onlab.onos.net.intent.IntentEvent; |
| |
| /** |
| * Command to show the list of last intent events. |
| */ |
| @Command(scope = "onos", name = "intents-events", |
| description = "Lists the last intent events") |
| public class IntentEventsListCommand extends AbstractShellCommand { |
| |
| private static final String FORMAT_EVENT = "Event=%s"; |
| |
| @Override |
| protected void execute() { |
| IntentMetricsService service = get(IntentMetricsService.class); |
| |
| if (outputJson()) { |
| print("%s", json(service.getEvents())); |
| } else { |
| for (IntentEvent event : service.getEvents()) { |
| print(FORMAT_EVENT, event); |
| print(""); // Extra empty line for clarity |
| } |
| } |
| } |
| |
| /** |
| * Produces a JSON array of intent events. |
| * |
| * @param intentEvents the intent events with the data |
| * @return JSON array with the intent events |
| */ |
| private JsonNode json(List<IntentEvent> intentEvents) { |
| ObjectMapper mapper = new ObjectMapper(); |
| ArrayNode result = mapper.createArrayNode(); |
| |
| for (IntentEvent event : intentEvents) { |
| result.add(json(mapper, event)); |
| } |
| return result; |
| } |
| |
| /** |
| * Produces JSON object for a intent event. |
| * |
| * @param mapper the JSON object mapper to use |
| * @param intentEvent the intent event with the data |
| * @return JSON object for the intent event |
| */ |
| private ObjectNode json(ObjectMapper mapper, IntentEvent intentEvent) { |
| ObjectNode result = mapper.createObjectNode(); |
| |
| result.put("time", intentEvent.time()) |
| .put("type", intentEvent.type().toString()) |
| .put("event", intentEvent.toString()); |
| return result; |
| } |
| } |