Respackopts/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/EnumEntrySerializer.java

88 lines
4.2 KiB
Java

package io.gitlab.jfronny.respackopts.gson.entry;
import io.gitlab.jfronny.commons.serialize.MalformedDataException;
import io.gitlab.jfronny.commons.serialize.SerializeReader;
import io.gitlab.jfronny.commons.serialize.SerializeWriter;
import io.gitlab.jfronny.commons.serialize.Token;
import io.gitlab.jfronny.commons.serialize.databind.api.SerializerFor;
import io.gitlab.jfronny.commons.serialize.databind.api.TypeAdapter;
import io.gitlab.jfronny.respackopts.model.enums.PackReloadType;
import io.gitlab.jfronny.respackopts.model.tree.ConfigEnumEntry;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
@SerializerFor(targets = ConfigEnumEntry.class)
public class EnumEntrySerializer extends TypeAdapter<ConfigEnumEntry> {
public static final Set<String> TYPES = Set.of("enum", "select");
@Override
public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(ConfigEnumEntry configEnumEntry, Writer writer) throws TEx, MalformedDataException {
writer.value(configEnumEntry.getValue());
}
@Override
public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> ConfigEnumEntry deserialize(Reader reader) throws TEx, MalformedDataException {
ConfigEnumEntry result = new ConfigEnumEntry();
if (reader.peek() == Token.STRING) {
result.setValue(reader.nextString());
return result;
} else if (reader.peek() == Token.NUMBER) {
result.setNextValue(reader.nextInt());
return result;
} else if (reader.peek() == Token.BEGIN_ARRAY) {
List<String> replacement = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
if (reader.peek() != Token.STRING) throw new MalformedDataException("Expected string entry in enum");
replacement.add(reader.nextString());
}
reader.endArray();
result.setValues(replacement);
result.setDefault(replacement.getFirst());
result.setValue(replacement.getFirst());
return result;
} else if (reader.peek() == Token.BEGIN_OBJECT) {
reader.beginObject();
while (reader.hasNext()) {
String key = reader.nextName();
switch (key) {
case "type" -> {
if (!TYPES.contains(reader.nextString())) {
throw new MalformedDataException("Invalid type for enum entry");
}
}
case "default" -> {
if (reader.peek() != Token.STRING) throw new MalformedDataException("Expected string for enum default");
String value = reader.nextString();
result.setDefault(value);
result.setValue(value);
}
case "reloadType" -> result.setReloadType(PackReloadType.valueOf(reader.nextString()));
case "values" -> {
if (reader.peek() != Token.BEGIN_ARRAY) throw new MalformedDataException("Expected array for enum values");
List<String> replacement = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
if (reader.peek() != Token.STRING) throw new MalformedDataException("Expected string entry in enum");
replacement.add(reader.nextString());
}
reader.endArray();
result.setValues(replacement);
if (!result.hasDefault()) {
result.setDefault(replacement.getFirst());
result.setValue(replacement.getFirst());
}
}
default -> throw new MalformedDataException("Unknown key in enum entry: " + key);
}
}
reader.endObject();
return result;
} else {
throw new MalformedDataException("Invalid data type for enum entry");
}
}
}