/** Creates a {@code GryoMapper}. */
public GryoMapper create() {
// consult the registry if provided and inject registry entries as custom classes.
registries.forEach(
registry -> {
final List<Pair<Class, Object>> serializers = registry.find(GryoIo.class);
serializers.forEach(
p -> {
if (null == p.getValue1()) addCustom(p.getValue0());
else if (p.getValue1() instanceof Serializer)
addCustom(p.getValue0(), (Serializer) p.getValue1());
else if (p.getValue1() instanceof Function)
addCustom(p.getValue0(), (Function<Kryo, Serializer>) p.getValue1());
else
throw new IllegalStateException(
String.format(
"Unexpected value provided by the %s for %s - expects [null, %s implementation or Function<%s, %s>]",
IoRegistry.class.getSimpleName(),
p.getValue0().getClass().getSimpleName(),
Serializer.class.getName(),
Kryo.class.getSimpleName(),
Serializer.class.getSimpleName()));
});
});
return new GryoMapper(this);
}
private void addCustomClasses(
final Map<String, Object> config, final GryoMapper.Builder builder) {
final List<String> classNameList = getClassNamesFromConfig(TOKEN_CUSTOM, config);
classNameList
.stream()
.forEach(
serializerDefinition -> {
String className;
Optional<String> serializerName;
if (serializerDefinition.contains(";")) {
final String[] split = serializerDefinition.split(";");
if (split.length != 2)
throw new IllegalStateException(
String.format(
"Invalid format for serializer definition [%s] - expected <class>;<serializer-class>",
serializerDefinition));
className = split[0];
serializerName = Optional.of(split[1]);
} else {
serializerName = Optional.empty();
className = serializerDefinition;
}
try {
final Class clazz = Class.forName(className);
final Serializer serializer;
if (serializerName.isPresent()) {
final Class serializerClazz = Class.forName(serializerName.get());
serializer = (Serializer) serializerClazz.newInstance();
builder.addCustom(clazz, kryo -> serializer);
} else builder.addCustom(clazz);
} catch (Exception ex) {
throw new IllegalStateException("Class could not be found", ex);
}
});
}