mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-09-20 21:26:42 +02:00
115 lines
4.0 KiB
Java
115 lines
4.0 KiB
Java
/* Copyright (C) 2024 Damien Gaignon, Martin.JM
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This file is part of Gadgetbridge.
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Gadgetbridge is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gadgetbridge is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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package nodomain.freeyourgadget.gadgetbridge.service.devices.huawei;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import nodomain.freeyourgadget.gadgetbridge.devices.huawei.HuaweiPacket;
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import nodomain.freeyourgadget.gadgetbridge.service.devices.huawei.requests.Request;
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/**
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* Manages all response data.
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*/
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public class ResponseManager {
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private static final Logger LOG = LoggerFactory.getLogger(ResponseManager.class);
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private final List<Request> handlers = Collections.synchronizedList(new ArrayList<>());
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private HuaweiPacket receivedPacket;
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private final AsynchronousResponse asynchronousResponse;
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private final HuaweiSupportProvider support;
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public ResponseManager(HuaweiSupportProvider support) {
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this.asynchronousResponse = new AsynchronousResponse(support);
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this.support = support;
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}
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/**
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* Add a request to the response handler list
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* @param handler The request to handle responses
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*/
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public void addHandler(Request handler) {
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synchronized (handlers) {
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handlers.add(handler);
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}
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}
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/**
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* Remove a request from the response handler list
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* @param handler The request to remove
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*/
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public void removeHandler(Request handler) {
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synchronized (handlers) {
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handlers.remove(handler);
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}
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}
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/**
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* Parses the data into a Huawei Packet.
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* If the packet is complete, it will be handled by the first request that accepts it,
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* or as an asynchronous request otherwise.
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*
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* @param data The received data
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*/
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public void handleData(byte[] data) {
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try {
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if (receivedPacket == null)
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receivedPacket = new HuaweiPacket(support.getParamsProvider()).parse(data);
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else
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receivedPacket = receivedPacket.parse(data);
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} catch (HuaweiPacket.ParseException e) {
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LOG.error("Packet parse exception", e);
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// Clean up so the next message may be parsed correctly
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this.receivedPacket = null;
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return;
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}
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if (receivedPacket.complete) {
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Request handler = null;
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synchronized (handlers) {
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for (Request req : handlers) {
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if (req.handleResponse(receivedPacket)) {
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handler = req;
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break;
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}
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}
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}
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if (handler == null) {
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LOG.debug("Service: " + Integer.toHexString(receivedPacket.serviceId & 0xff) + ", command: " + Integer.toHexString(receivedPacket.commandId & 0xff) + ", asynchronous response.");
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// Asynchronous response
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asynchronousResponse.handleResponse(receivedPacket);
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} else {
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LOG.debug("Service: " + Integer.toHexString(receivedPacket.serviceId & 0xff) + ", command: " + Integer.toHexString(receivedPacket.commandId & 0xff) + ", handled by: " + handler.getClass());
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synchronized (handlers) {
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handlers.remove(handler);
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}
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handler.handleResponse();
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}
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receivedPacket = null;
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}
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}
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}
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