org.joyqueue.network.codec.GetTopicsCodec Maven / Gradle / Ivy
/**
* Copyright 2019 The JoyQueue Authors.
*
* 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.
*/
package org.joyqueue.network.codec;
import org.joyqueue.network.command.CommandType;
import org.joyqueue.network.transport.codec.PayloadCodec;
import org.joyqueue.network.transport.command.Header;
import org.joyqueue.network.serializer.Serializer;
import org.joyqueue.network.transport.command.Type;
import org.joyqueue.network.command.GetTopics;
import io.netty.buffer.ByteBuf;
/**
* @author wylixiaobin
* Date: 2018/10/19
*/
public class GetTopicsCodec implements PayloadCodec, Type {
@Override
public Object decode(Header header, ByteBuf buffer) throws Exception {
return new GetTopics().app(Serializer.readString(buffer)).subscribeType(buffer.readInt());
}
@Override
public void encode(GetTopics payload, ByteBuf buffer) throws Exception {
Serializer.write(payload.getApp(),buffer);
buffer.writeInt(payload.getSubscribeType());
}
@Override
public int type() {
return CommandType.GET_TOPICS;
}
}