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/*
* Copyright 2014-2015 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.codec.impl;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.onlab.packet.ChassisId;
import org.onosproject.codec.CodecContext;
import org.onosproject.net.Annotations;
import org.onosproject.net.DefaultAnnotations;
import org.onosproject.net.DefaultPort;
import org.onosproject.net.Device;
import org.onosproject.net.DeviceId;
import org.onosproject.net.Port;
import org.onosproject.net.Port.Type;
import org.onosproject.net.PortNumber;
import org.onosproject.net.provider.ProviderId;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Device port JSON codec.
*/
public final class PortCodec extends AnnotatedCodec<Port> {
// JSON field names
private static final String ELEMENT = "element"; // DeviceId
private static final String PORT_NAME = "port";
private static final String IS_ENABLED = "isEnabled";
private static final String TYPE = "type";
private static final String PORT_SPEED = "portSpeed";
// Special port name alias
private static final String PORT_NAME_LOCAL = "local";
@Override
public ObjectNode encode(Port port, CodecContext context) {
checkNotNull(port, "Port cannot be null");
ObjectNode result = context.mapper().createObjectNode()
.put(ELEMENT, port.element().id().toString())
.put(PORT_NAME, portName(port.number()))
.put(IS_ENABLED, port.isEnabled())
.put(TYPE, port.type().toString().toLowerCase())
.put(PORT_SPEED, port.portSpeed());
return annotate(result, port, context);
}
private String portName(PortNumber port) {
return port.equals(PortNumber.LOCAL) ? PORT_NAME_LOCAL : port.toString();
}
private static PortNumber portNumber(String portName) {
if (portName.equalsIgnoreCase(PORT_NAME_LOCAL)) {
return PortNumber.LOCAL;
}
return PortNumber.portNumber(portName);
}
/**
* {@inheritDoc}
*
* Note: Result of {@link Port#element()} returned Port object,
* is not a full Device object.
* Only it's DeviceId can be used.
*/
@Override
public Port decode(ObjectNode json, CodecContext context) {
if (json == null || !json.isObject()) {
return null;
}
DeviceId did = DeviceId.deviceId(json.get(ELEMENT).asText());
Device device = new DummyDevice(did);
PortNumber number = portNumber(json.get(PORT_NAME).asText());
boolean isEnabled = json.get(IS_ENABLED).asBoolean();
Type type = Type.valueOf(json.get(TYPE).asText().toUpperCase());
long portSpeed = json.get(PORT_SPEED).asLong();
Annotations annotations = extractAnnotations(json, context);
return new DefaultPort(device, number, isEnabled, type, portSpeed, annotations);
}
/**
* Dummy Device which only holds DeviceId.
*/
private static final class DummyDevice implements Device {
private final DeviceId did;
/**
* Constructs Dummy Device which only holds DeviceId.
*
* @param did device Id
*/
public DummyDevice(DeviceId did) {
this.did = did;
}
@Override
public Annotations annotations() {
return DefaultAnnotations.EMPTY;
}
@Override
public ProviderId providerId() {
return new ProviderId(did.uri().getScheme(), "PortCodec");
}
@Override
public DeviceId id() {
return did;
}
@Override
public Type type() {
return Type.SWITCH;
}
@Override
public String manufacturer() {
return "dummy";
}
@Override
public String hwVersion() {
return "0";
}
@Override
public String swVersion() {
return "0";
}
@Override
public String serialNumber() {
return "0";
}
@Override
public ChassisId chassisId() {
return new ChassisId();
}
}
}
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