PushMessage.java

/*
 * (C) Copyright 2015-2016 the original author or 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.
 *
 * Contributors:
 *   ohun@live.cn (夜色)
 */

package com.mpush.common.message;

import com.mpush.api.Constants;
import com.mpush.api.connection.Connection;
import com.mpush.api.protocol.JsonPacket;
import com.mpush.api.protocol.Packet;
import io.netty.channel.ChannelFutureListener;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import static com.mpush.api.protocol.Command.PUSH;

/**
 * Created by ohun on 2015/12/30.
 *
 * @author ohun@live.cn
 */
public final class PushMessage extends BaseMessage {

    public byte[] content;

    public PushMessage(Packet packet, Connection connection) {
        super(packet, connection);
    }

    public static PushMessage build(Connection connection) {
        if (connection.getSessionContext().isSecurity()) {
            return new PushMessage(new Packet(PUSH, genSessionId()), connection);
        } else {
            return new PushMessage(new JsonPacket(PUSH, genSessionId()), connection);
        }
    }

    @Override
    public void decode(byte[] body) {
        content = body;
    }

    @Override
    public byte[] encode() {
        return content;
    }

    @Override
    public void decodeJsonBody(Map<String, Object> body) {
        String content = (String) body.get("content");
        if (content != null) {
            this.content = content.getBytes(Constants.UTF_8);
        }
    }

    @Override
    public Map<String, Object> encodeJsonBody() {
        if (content != null) {
            return Collections.singletonMap("content", new String(content, Constants.UTF_8));
        }
        return null;
    }

    public boolean autoAck() {
        return packet.hasFlag(Packet.FLAG_AUTO_ACK);
    }

    public boolean needAck() {
        return packet.hasFlag(Packet.FLAG_BIZ_ACK) || packet.hasFlag(Packet.FLAG_AUTO_ACK);
    }

    public PushMessage setContent(byte[] content) {
        this.content = content;
        return this;
    }



    @Override
    public void send(ChannelFutureListener listener) {
        super.send(listener);
        this.content = null;//释放内存
    }

    @Override
    public String toString() {
        return "PushMessage{" +
                "content='" + content.length + '\'' +
                ", packet=" + packet +
                '}';
    }
}