ProtoMessageWriter.java

package net.morimekta.proto.sio;

import com.google.protobuf.Message;

import java.io.IOException;
import java.io.OutputStream;

import static java.util.Objects.requireNonNull;

/**
 * Writer implementation for writing messages using the default proto binary
 * format.
 */
public class ProtoMessageWriter implements MessageWriter {
    private final OutputStream out;

    /**
     * @param out Output stream to write to.
     */
    public ProtoMessageWriter(OutputStream out) {
        this.out = requireNonNull(out, "out == null");
    }

    @Override
    public void write(Message message) throws IOException {
        requireNonNull(message, "message == null");
        message.writeTo(out);
        out.flush();
    }
}