NodeTransceiver.java
- package org.opentrafficsim.sim0mq.publisher;
- import java.rmi.RemoteException;
- import org.djunits.unit.DirectionUnit;
- import org.djunits.unit.PositionUnit;
- import org.djunits.value.vdouble.scalar.Direction;
- import org.djunits.value.vdouble.vector.PositionVector;
- import org.djutils.draw.point.OrientedPoint2d;
- import org.djutils.metadata.MetaData;
- import org.djutils.metadata.ObjectDescriptor;
- import org.djutils.serialization.SerializationException;
- import org.opentrafficsim.core.network.Network;
- import org.opentrafficsim.core.network.Node;
- import org.sim0mq.Sim0MQException;
- /**
- * Transceiver for Node data.
- * <p>
- * Copyright (c) 2020-2024 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
- * BSD-style license. See <a href="https://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
- * </p>
- * @author <a href="https://github.com/averbraeck">Alexander Verbraeck</a>
- * @author <a href="https://github.com/peter-knoppers">Peter Knoppers</a>
- * @author <a href="https://github.com/wjschakel">Wouter Schakel</a>
- */
- public class NodeTransceiver extends AbstractTransceiver
- {
- /** The OTS network. */
- private final Network network;
- /** Transceiver for the Node ids. */
- private final TransceiverInterface nodeIdSource;
- /**
- * Construct a new NodeTransceiver.
- * @param network the network
- * @param nodeIdSource the transceiver that can produce all Node ids in the Network
- */
- public NodeTransceiver(final Network network, final NodeIdTransceiver nodeIdSource)
- {
- super("Node transceiver",
- new MetaData("Node id", "Node id",
- new ObjectDescriptor[] {new ObjectDescriptor("Node id", "Node id", String.class)}),
- new MetaData("Node data", "Node id, position, direction, number of Links",
- new ObjectDescriptor[] {new ObjectDescriptor("Node id", "Node id", String.class),
- new ObjectDescriptor("Position", "Position", PositionVector.class),
- new ObjectDescriptor("Direction", "Direction", Direction.class),
- new ObjectDescriptor("Number of links", "Number of links", Integer.class)}));
- this.network = network;
- this.nodeIdSource = nodeIdSource;
- }
- @Override
- public Object[] get(final Object[] address, final ReturnWrapper returnWrapper)
- throws RemoteException, Sim0MQException, SerializationException
- {
- String bad = verifyMetaData(getAddressFields(), address);
- if (bad != null)
- {
- returnWrapper.nack(bad);
- return null;
- }
- Node node = this.network.getNode((String) address[0]);
- if (null == node)
- {
- returnWrapper.nack("Network does not contain a node with id " + address[0]);
- return null;
- }
- OrientedPoint2d nodeLocation = node.getLocation();
- return new Object[] {node.getId(),
- new PositionVector(new double[] {nodeLocation.x, nodeLocation.y}, PositionUnit.METER),
- new Direction(nodeLocation.getDirZ(), DirectionUnit.EAST_DEGREE), node.getLinks().size()};
- }
- @Override
- public TransceiverInterface getIdSource(final int addressLevel, final ReturnWrapper returnWrapper)
- throws Sim0MQException, SerializationException
- {
- if (addressLevel != 0)
- {
- returnWrapper.nack("Only empty address is valid");
- return null;
- }
- return this.nodeIdSource;
- }
- @Override
- public boolean hasIdSource()
- {
- return true;
- }
- @Override
- public String toString()
- {
- return "NodeTransceiver [network=" + this.network + ", super=" + super.toString() + "]";
- }
- }