84 lines
3.2 KiB
Java
84 lines
3.2 KiB
Java
package com.aros.apron.callback;
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import android.os.Handler;
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import android.os.Looper;
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import com.aros.apron.constant.AMSConfig;
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import com.aros.apron.tools.LogUtil;
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import com.aros.apron.tools.ToastUtil;
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import org.eclipse.paho.android.service.MqttAndroidClient;
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import org.eclipse.paho.client.mqttv3.IMqttActionListener;
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import org.eclipse.paho.client.mqttv3.IMqttToken;
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import org.eclipse.paho.client.mqttv3.MqttConnectOptions;
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import org.eclipse.paho.client.mqttv3.MqttException;
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public class MqttActionCallBack implements IMqttActionListener {
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private final String TAG = "MqttActionCallBack";
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private MqttAndroidClient mqttAndroidClient;
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private MqttConnectOptions options;
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private int reconnectAttempt = 0;
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private static final int INITIAL_RETRY_INTERVAL = 3000; // 初始重试间隔 3 秒
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private static final int MAX_RETRY_INTERVAL = 30000; // 最大重试间隔 30 秒
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private static final Handler retryHandler = new Handler(Looper.getMainLooper());
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private Runnable retryRunnable;
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public MqttActionCallBack(MqttAndroidClient mqttAndroidClient, MqttConnectOptions options) {
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this.mqttAndroidClient = mqttAndroidClient;
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this.options = options;
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}
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@Override
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public void onSuccess(IMqttToken asyncActionToken) {
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LogUtil.log(TAG, "MQtt连接成功：-------");
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reconnectAttempt = 0;
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if (retryRunnable != null) {
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retryHandler.removeCallbacks(retryRunnable);
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retryRunnable = null;
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}
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new Handler(Looper.getMainLooper()).post(() -> ToastUtil.showToast("MQtt连接成功"));
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try {
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mqttAndroidClient.subscribe(AMSConfig.DOWN_UAV_SERVICES, 1);
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} catch (MqttException e) {
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e.printStackTrace();
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}
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}
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@Override
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public void onFailure(IMqttToken asyncActionToken, Throwable exception) {
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LogUtil.log(TAG, "MQtt连接失败:" + exception.toString());
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try {
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if (!mqttAndroidClient.isConnected()) {
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reconnectAttempt++;
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// 指数退避：3s → 6s → 12s → 24s → 30s(封顶)
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long retryDelay = Math.min(INITIAL_RETRY_INTERVAL * (1L << Math.min(reconnectAttempt, 4)), MAX_RETRY_INTERVAL);
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if (reconnectAttempt % 10 == 0 || reconnectAttempt <= 3) {
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LogUtil.log(TAG, "第 " + reconnectAttempt + " 次重连，间隔 " + retryDelay + "ms");
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}
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if (retryRunnable != null) {
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retryHandler.removeCallbacks(retryRunnable);
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}
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final long finalDelay = retryDelay;
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retryRunnable = new Runnable() {
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@Override
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public void run() {
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try {
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mqttAndroidClient.connect(options, null, MqttActionCallBack.this);
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} catch (MqttException e) {
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LogUtil.log(TAG, "mqtt重连异常:" + e.toString());
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}
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}
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};
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retryHandler.postDelayed(retryRunnable, finalDelay);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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