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/*
* Copyright 2014 Open Networking Laboratory
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onosproject.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.onosproject.cli.AbstractShellCommand;
import org.onosproject.metrics.intent.IntentMetricsService;
import org.onosproject.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;
}
}
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