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feat: completed MessageDeserializer

This commit is contained in:
Yannik Bretschneider 2021-06-03 16:36:50 +02:00
parent f3d3310e46
commit 99e1de14bc
1 changed files with 47 additions and 1 deletions
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48
src/main/java/uulm/teamname/marvelous/gamelibrary/json/login/MessageDeserializer.java
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@ -1,2 +1,48 @@
package uulm.teamname.marvelous.gamelibrary.json.login;public class MessageDeserializer {
package uulm.teamname.marvelous.gamelibrary.json.login;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.ObjectCodec;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import uulm.teamname.marvelous.gamelibrary.messages.*;
import java.io.IOException;
import java.util.Optional;
public class MessageDeserializer extends JsonDeserializer<BasicMessage> {
@Override
public BasicMessage deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {
ObjectCodec codec = p.getCodec();
JsonNode node = codec.readTree(p);
var type = Optional.of(node.get("messageType"))
.map(JsonNode::textValue)
.map(MessageType::valueOf);
if (type.isEmpty()) {
throw new IOException("MessageType does not exist");
}
BasicMessage message;
switch (type.get()) {
case HELLO_CLIENT -> message = p.readValueAs(HelloClientMessage.class);
case HELLO_SERVER -> message = p.readValueAs(HelloServerMessage.class);
case ERROR -> message = p.readValueAs(ErrorMessage.class);
case PLAYER_READY -> message = p.readValueAs(PlayerReadyMessage.class);
case RECONNECT -> message = p.readValueAs(ReconnectMessage.class);
case GAME_ASSIGNMENT -> message = p.readValueAs(GameAssignmentMessage.class);
case GENERAL_ASSIGNMENT -> message = p.readValueAs(GeneralAssignmentMessage.class);
case CHARACTER_SELECTION -> message = p.readValueAs(CharacterSelectionMessage.class);
case CONFIRM_SELECTION -> message = p.readValueAs(ConfirmSelectionMessage.class);
case GAME_STRUCTURE -> message = p.readValueAs(GameStructureMessage.class);
case EVENTS -> message = p.readValueAs(EventMessage.class);
case REQUESTS -> message = p.readValueAs(RequestMessage.class);
case GOODBYE_CLIENT -> message = p.readValueAs(GoodbyeClientMessage.class);
default -> throw new IllegalStateException("No MessageType given, which should be impossible");
}
return message;
}
}