ProtoTextMessageReader.java
package net.morimekta.proto.sio;
import com.google.protobuf.Descriptors;
import com.google.protobuf.Message;
import com.google.protobuf.TextFormat;
import net.morimekta.proto.ProtoMessage;
import java.io.IOException;
import java.io.Reader;
import static java.util.Objects.requireNonNull;
/**
* Reader for reading files using the proto text format.
*/
public class ProtoTextMessageReader implements MessageReader {
private final Reader reader;
private final TextFormat.Parser parser;
/**
* @param reader Reader to read from.
*/
public ProtoTextMessageReader(Reader reader) {
this(reader, false);
}
/**
* @param reader Reader to read from.
* @param lenient If messages should be read leniently.
*/
public ProtoTextMessageReader(Reader reader, boolean lenient) {
this.reader = requireNonNull(reader, "in == null");
this.parser = TextFormat.Parser.newBuilder()
.setAllowUnknownExtensions(lenient)
.setAllowUnknownFields(lenient)
.build();
}
@Override
public Message read(Descriptors.Descriptor descriptor) throws IOException {
requireNonNull(descriptor, "descriptor == null");
var builder = ProtoMessage.newBuilder(descriptor);
parser.merge(reader, builder);
return builder.build();
}
}