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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.onosproject.codec.CodecContext;
import org.onosproject.codec.JsonCodec;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.DeviceId;
import org.onosproject.net.ElementId;
import org.onosproject.net.HostId;
import org.onosproject.net.PortNumber;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.onosproject.net.PortNumber.portNumber;
/**
* Connection point JSON codec.
*/
public final class ConnectPointCodec extends JsonCodec<ConnectPoint> {
// JSON field names
private static final String ELEMENT_HOST = "host";
private static final String ELEMENT_DEVICE = "device";
private static final String PORT = "port";
@Override
public ObjectNode encode(ConnectPoint point, CodecContext context) {
checkNotNull(point, "Connect point cannot be null");
ObjectNode root = context.mapper().createObjectNode()
.put(PORT, point.port().toString());
if (point.elementId() instanceof DeviceId) {
root.put(ELEMENT_DEVICE, point.deviceId().toString());
} else if (point.elementId() instanceof HostId) {
root.put(ELEMENT_HOST, point.hostId().toString());
}
return root;
}
@Override
public ConnectPoint decode(ObjectNode json, CodecContext context) {
if (json == null || !json.isObject()) {
return null;
}
ElementId elementId;
if (json.has(ELEMENT_DEVICE)) {
elementId = DeviceId.deviceId(json.get(ELEMENT_DEVICE).asText());
} else if (json.has(ELEMENT_HOST)) {
elementId = HostId.hostId(json.get(ELEMENT_HOST).asText());
} else {
// invalid JSON
return null;
}
PortNumber portNumber = portNumber(json.get(PORT).asText());
return new ConnectPoint(elementId, portNumber);
}
}
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