/*
* 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.
*/
/**
* Set of facilities to allow the platform to be extended with
* device specific behaviours and to allow modeling device (and other entity)
* behaviours while hiding details of specific driver implementations.
* While primarily intended for devices, this subsystem can be used to abstract
* behaviours of other entities as well.
* <p>
* {@link org.onosproject.net.driver.Driver} is a representation of a
* specific family of entities (devices, links, etc.) which supports set of
* {@link org.onosproject.net.driver.Behaviour behaviour classes}. Default
* implementation is provided by the platform and allows DriverProviders to
* add different behaviour implementations via DriverService.
* </p>
* <p>
* {@link org.onosproject.net.driver.DriverData} is a container for data
* learned about an entity. It is associated with a specific
* {@link org.onosproject.net.driver.Driver}
* and provides set of {@link org.onosproject.net.driver.Behaviour behaviours}
* for talking about an entity. A default
* implementation provided by platform and has mutable key/value store for use by
* implementations of {@link org.onosproject.net.driver.Behaviour behaviours}.
* </p>
* <p>
* {@link org.onosproject.net.driver.DriverHandler} is an entity used as a
* context to interact with a device. It has a peer
* {@link org.onosproject.net.driver.DriverData} instance, which is used to
* store information learned about a device. It also
* provides set of {@link org.onosproject.net.driver.Behaviour behaviours}
* for talking to a device.
* </p>
* <p>
* {@link org.onosproject.net.driver.DriverService} can be used to query the
* inventory of device drivers and their behaviours, while the
* {@link org.onosproject.net.driver.DriverAdminService} allows adding/removing
* drivers and managing behaviour implementations.
* {@link org.onosproject.net.driver.DriverProvider} is an entity capable
* of add/removing drivers and supplying and managing behaviour
* implementations. A default implementation is provided by the framework along
* with a {@link org.onosproject.net.driver.XmlDriverLoader loader utility} to
* create a driver provider from an XML file structured as follows:
* <pre>
* <drivers>
* <driver name=“...” [manufacturer="..." hwVersion="..." swVersion="..."]>
* <behaviour api="..." impl="..."/>
* ...
* [<property name=“key”>value</key>]
* ...
* </driver>
* ...
* </drivers>
* </pre>
*
*/
package org.onosproject.net.driver;