io.vertx.core.eventbus.impl.codecs.StringMessageCodec Maven / Gradle / Ivy
/*
* Copyright (c) 2011-2014 The original author or authors
* ------------------------------------------------------
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* You may elect to redistribute this code under either of these licenses.
*/
package io.vertx.core.eventbus.impl.codecs;
import io.netty.util.CharsetUtil;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.eventbus.MessageCodec;
/**
* @author Tim Fox
*/
public class StringMessageCodec implements MessageCodec {
@Override
public void encodeToWire(Buffer buffer, String s) {
byte[] strBytes = s.getBytes(CharsetUtil.UTF_8);
buffer.appendInt(strBytes.length);
buffer.appendBytes(strBytes);
}
@Override
public String decodeFromWire(int pos, Buffer buffer) {
int length = buffer.getInt(pos);
pos += 4;
byte[] bytes = buffer.getBytes(pos, pos + length);
return new String(bytes, CharsetUtil.UTF_8);
}
@Override
public String transform(String s) {
// Strings are immutable so just return it
return s;
}
@Override
public String name() {
return "string";
}
@Override
public byte systemCodecID() {
return 9;
}
}