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65 lines
1.6 KiB
65 lines
1.6 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.BoatAction;
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import network.Messages.CourseWind;
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import network.Messages.CourseWinds;
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import java.nio.ByteBuffer;
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import static network.Utils.ByteConverter.intToBytes;
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/**
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* This encoder can encode a {@link CourseWinds} message.
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*/
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public class CourseWindsEncoder implements MessageEncoder {
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/**
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* Constructor.
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*/
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public CourseWindsEncoder() {
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}
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@Override
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public byte[] encode(AC35Data message) throws InvalidMessageException {
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try {
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//Downcast.
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CourseWinds courseWinds = (CourseWinds) message;
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byte messageVersionNumber = CourseWinds.currentMessageVersionNumber;
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byte byteWindID = courseWinds.getSelectedWindID();
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byte[] loopcount = intToBytes(courseWinds.getCourseWinds().size(), 1);
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ByteBuffer result = ByteBuffer.allocate(3 + 20 * courseWinds.getCourseWinds().size());
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result.put(messageVersionNumber);
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result.put(byteWindID);
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result.put(loopcount);
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//Encode each CourseWind.
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for (CourseWind wind : courseWinds.getCourseWinds()) {
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CourseWindEncoder courseWindEncoder = new CourseWindEncoder();
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byte[] encodedCourseWind = courseWindEncoder.encode(wind);
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result.put(encodedCourseWind);
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}
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return result.array();
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} catch (Exception e) {
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throw new InvalidMessageException("Could not encode CourseWinds message.", e);
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}
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}
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}
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