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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.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.
*
* @param driver driver to be provided
*/
public void addDriver(Driver driver) {
Driver ddc = drivers.get(driver.name());
if (ddc == null) {
// If we don't have the driver yet, just use the new one.
drivers.put(driver.name(), driver);
} else {
// Otherwise merge the existing driver with the new one and rebind.
drivers.put(driver.name(), ddc.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();
}
}
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