com.threerings.nexus.io.ClientOutput.java Source code

Introduction

Here is the source code for com.threerings.nexus.io.ClientOutput.java

Source

//
// Nexus GWTIO - I/O and network services for Nexus built on GWT and WebSockets
// http://github.com/threerings/nexus/blob/master/LICENSE

package com.threerings.nexus.io;

import com.google.gwt.lang.LongLib;

import com.threerings.nexus.distrib.DService;

/**
 * Handles the encoding of streamable data into a string payload (for delivery to the server).
 */
class ClientOutput extends Streamable.Output {
    /** The character used to separate values in an encoded payload. */
    public static final char SEPARATOR = '|';

    public ClientOutput(Serializer szer, StringBuffer output) {
        _szer = szer;
        _output = output;
    }

    @Override
    public void writeBoolean(boolean value) {
        append(value ? "1" : "0");
    }

    @Override
    public void writeByte(byte value) {
        append(String.valueOf(value));
    }

    @Override
    public void writeShort(short value) {
        append(String.valueOf(value));
    }

    @Override
    public void writeChar(char value) {
        // use an int, to avoid having to cope with escaping things
        writeInt((int) value);
    }

    @Override
    public void writeInt(int value) {
        append(String.valueOf(value));
    }

    @Override
    public void writeLong(long value) {
        append(LongLib.toBase64(value));
    }

    @Override
    public void writeFloat(float value) {
        writeDouble(value);
    }

    @Override
    public void writeDouble(double value) {
        append(String.valueOf(value));
    }

    @Override
    public void writeString(String value) {
        if (value == null) {
            writeBoolean(false);
        } else {
            writeBoolean(true);
            append(quoteString(value));
        }
    }

    @Override
    public void writeClass(Class<? extends Streamable> clazz) {
        writeShort(_szer.getCode(clazz));
    }

    @Override
    public void writeService(DService<?> service) {
        writeShort(_szer.getServiceCode(service.getServiceClass()));
    }

    @Override
    protected <T> Streamer<T> writeStreamer(T value) {
        return _szer.<T>writeStreamer(this, value);
    }

    protected String quoteString(String value) {
        return value; // TODO
    }

    protected void append(String token) {
        _output.append(token);
        _output.append(SEPARATOR);
    }

    protected final Serializer _szer;
    protected final StringBuffer _output;
}