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44 lines
1.5 KiB
44 lines
1.5 KiB
package network.MessageEncoders;
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import network.Exceptions.InvalidMessageException;
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import network.Messages.AC35Data;
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import network.Messages.YachtEvent;
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import java.nio.ByteBuffer;
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import static network.Utils.ByteConverter.intToBytes;
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import static network.Utils.ByteConverter.longToBytes;
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/**
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* Encodes a {@link YachtEvent} message.
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*/
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public class YachtEventCodeEncoder implements MessageEncoder {
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@Override
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public byte[] encode(AC35Data message) throws InvalidMessageException {
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// Downcast message
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YachtEvent yachtEvent = (YachtEvent)message;
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// Serialise message
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byte messageVersion = 0b10;
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byte[] timestamp = longToBytes(yachtEvent.getCurrentTime(), 6);
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byte[] ackNum = intToBytes(yachtEvent.getAckNum(), 2);
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byte[] raceID = intToBytes(yachtEvent.getRaceID());
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byte[] sourceID = intToBytes(yachtEvent.getSourceID());
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byte[] incidentID = intToBytes(yachtEvent.getIncidentID());
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byte eventID = yachtEvent.getYachtEvent().getValue();
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// Pack bytes into string
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ByteBuffer yachtEventMessage = ByteBuffer.allocate(22);
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yachtEventMessage.put(messageVersion);
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yachtEventMessage.put(timestamp);
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yachtEventMessage.put(ackNum);
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yachtEventMessage.put(raceID);
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yachtEventMessage.put(sourceID);
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yachtEventMessage.put(incidentID);
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yachtEventMessage.put(eventID);
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// Return byte string
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return yachtEventMessage.array();
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}
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}
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