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/*
* Copyright 2015 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.cli.net;
import java.util.Map;
import org.apache.karaf.shell.commands.Command;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.store.service.StorageAdminService;
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;
/**
* Command to list the various counters in the system.
*/
@Command(scope = "onos", name = "counters",
description = "Lists information about atomic counters in the system")
public class CountersListCommand extends AbstractShellCommand {
private static final String FMT = "name=%s value=%d";
/**
* Displays counters as text.
*
* @param counters counter info
*/
private void displayCounters(Map<String, Long> counters) {
counters.forEach((name, value) -> print(FMT, name, value));
}
/**
* Converts info for counters into a JSON object.
*
* @param counters counter info
*/
private JsonNode json(Map<String, Long> counters) {
ObjectMapper mapper = new ObjectMapper();
ArrayNode jsonCounters = mapper.createArrayNode();
// Create a JSON node for each counter
counters.forEach((name, value) -> {
ObjectNode jsonCounter = mapper.createObjectNode();
jsonCounter.put("name", name)
.put("value", value);
jsonCounters.add(jsonCounter);
});
return jsonCounters;
}
/**
* Converts info for counters from different databases into a JSON object.
*
* @param partitionedDbCounters counters info
* @param inMemoryDbCounters counters info
*/
private JsonNode jsonAllCounters(Map<String, Long> partitionedDbCounters,
Map<String, Long> inMemoryDbCounters) {
ObjectMapper mapper = new ObjectMapper();
ArrayNode jsonCounters = mapper.createArrayNode();
// Create a JSON node for partitioned database counter
ObjectNode jsonPartitionedDatabaseCounters = mapper.createObjectNode();
jsonPartitionedDatabaseCounters.set("partitionedDatabaseCounters",
json(partitionedDbCounters));
jsonCounters.add(jsonPartitionedDatabaseCounters);
// Create a JSON node for in-memory database counter
ObjectNode jsonInMemoryDatabseCounters = mapper.createObjectNode();
jsonInMemoryDatabseCounters.set("inMemoryDatabaseCounters",
json(inMemoryDbCounters));
jsonCounters.add(jsonInMemoryDatabseCounters);
return jsonCounters;
}
@Override
protected void execute() {
StorageAdminService storageAdminService = get(StorageAdminService.class);
Map<String, Long> partitionedDatabaseCounters = storageAdminService.getPartitionedDatabaseCounters();
Map<String, Long> inMemoryDatabaseCounters = storageAdminService.getInMemoryDatabaseCounters();
if (outputJson()) {
print("%s", jsonAllCounters(partitionedDatabaseCounters, inMemoryDatabaseCounters));
} else {
print("Partitioned database counters:");
displayCounters(partitionedDatabaseCounters);
print("In-memory database counters:");
displayCounters(inMemoryDatabaseCounters);
}
}
}
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