/*
 * Copyright 2015-present Open Networking Foundation
 *
 * 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 org.apache.karaf.shell.api.action.Argument;
import org.apache.karaf.shell.api.action.Command;
import org.apache.karaf.shell.api.action.Completion;
import org.apache.karaf.shell.api.action.lifecycle.Service;
import org.onosproject.cli.AbstractShellCommand;
import org.onosproject.net.DeviceId;
import org.onosproject.net.behaviour.ControllerConfig;
import org.onosproject.net.driver.DriverHandler;
import org.onosproject.net.driver.DriverService;

/**
 * Sets role of the controller node for the given infrastructure device.
 */
@Service
@Command(scope = "onos", name = "device-controllers",
        description = "gets the list of controllers for the given infrastructure device")
public class DeviceControllersCommand extends AbstractShellCommand {

    @Argument(index = 0, name = "uri", description = "Device ID",
            required = true, multiValued = false)
    @Completion(DeviceIdCompleter.class)
    String uri = null;
    private DeviceId deviceId;

    @Override
    protected void doExecute() {
        DriverService service = get(DriverService.class);
        deviceId = DeviceId.deviceId(uri);
        DriverHandler h = service.createHandler(deviceId);
        ControllerConfig config = h.behaviour(ControllerConfig.class);
        config.getControllers().forEach(c -> print(c.target()));
    }

}