| /* |
| * Copyright 2015-present 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.net.driver; |
| |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Maps; |
| |
| import java.util.Map; |
| import java.util.Set; |
| |
| import static com.google.common.base.MoreObjects.toStringHelper; |
| |
| /** |
| * Default driver provider implementation. |
| */ |
| public class DefaultDriverProvider implements DriverProvider { |
| |
| protected final Map<String, Driver> drivers = Maps.newConcurrentMap(); |
| |
| @Override |
| public Set<Driver> getDrivers() { |
| return ImmutableSet.copyOf(drivers.values()); |
| } |
| |
| /** |
| * Adds the specified drivers to the provider. |
| * |
| * @param drivers drivers to be added |
| */ |
| public void addDrivers(Set<Driver> drivers) { |
| drivers.forEach(this::addDriver); |
| } |
| |
| /** |
| * Adds the specified driver to the provider. If a driver with the same |
| * does not exist yet, the specified one will be added. Otherwise, the |
| * existing driver will be merged with the new one and the result will be |
| * registered. |
| * |
| * @param driver driver to be provided |
| * @return registered driver |
| */ |
| public Driver addDriver(Driver driver) { |
| return drivers.compute(driver.name(), (name, oldDriver) -> |
| oldDriver == null ? driver : oldDriver.merge(driver)); |
| } |
| |
| /** |
| * Removes the specified drivers from the provider. |
| * |
| * @param drivers drivers to be removed |
| */ |
| public void removeDrivers(Set<Driver> drivers) { |
| drivers.forEach(this::removeDriver); |
| } |
| |
| /** |
| * Removes the specified driver from the provider. |
| * |
| * @param driver driver to be removed |
| */ |
| public void removeDriver(Driver driver) { |
| // TODO: make selective if possible |
| drivers.remove(driver.name()); |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this).add("drivers", drivers).toString(); |
| } |
| } |