org.jfxvnc.net.rfb.codec.encoder.PreferedEncodingEncoder Maven / Gradle / Ivy

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RFB/VNC protocol codec and handler based on netty

There is a newer version: 1.2.0

package org.jfxvnc.net.rfb.codec.encoder;

/*
 * #%L
 * RFB protocol
 * %%
 * Copyright (C) 2015 comtel2000
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import java.util.Arrays;

import org.jfxvnc.net.rfb.codec.ClientEventType;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToByteEncoder;

public class PreferedEncodingEncoder extends MessageToByteEncoder {

    @Override
    protected void encode(ChannelHandlerContext ctx, PreferedEncoding enc, ByteBuf out) throws Exception {
	out.writeByte(ClientEventType.SET_ENCODINGS);
	out.writeZero(1); // padding
	out.writeShort(enc.getEncodings().length);
	Arrays.stream(enc.getEncodings()).forEach(e -> out.writeInt(e.getType()));

	ctx.pipeline().remove(this);
    }

}