2 * Copyright (c) 2010-2024 Contributors to the openHAB project
4 * See the NOTICE file(s) distributed with this work for additional
7 * This program and the accompanying materials are made available under the
8 * terms of the Eclipse Public License 2.0 which is available at
9 * http://www.eclipse.org/legal/epl-2.0
11 * SPDX-License-Identifier: EPL-2.0
13 package org.openhab.binding.ipcamera.internal.onvif;
15 import org.eclipse.jdt.annotation.NonNullByDefault;
16 import org.eclipse.jdt.annotation.Nullable;
17 import org.openhab.binding.ipcamera.internal.onvif.OnvifConnection.RequestType;
18 import org.slf4j.Logger;
19 import org.slf4j.LoggerFactory;
21 import io.netty.channel.ChannelDuplexHandler;
22 import io.netty.channel.ChannelHandlerContext;
23 import io.netty.handler.codec.http.HttpContent;
24 import io.netty.handler.codec.http.HttpResponse;
25 import io.netty.handler.codec.http.LastHttpContent;
26 import io.netty.handler.timeout.IdleStateEvent;
27 import io.netty.util.CharsetUtil;
28 import io.netty.util.ReferenceCountUtil;
31 * The {@link OnvifCodec} is used by Netty to decode Onvif traffic into message Strings.
33 * @author Matthew Skinner - Initial contribution
36 public class OnvifCodec extends ChannelDuplexHandler {
37 private final Logger logger = LoggerFactory.getLogger(getClass());
38 private String incomingMessage = "";
39 private OnvifConnection onvifConnection;
40 private RequestType requestType = RequestType.GetStatus;
42 OnvifCodec(OnvifConnection onvifConnection) {
43 this.onvifConnection = onvifConnection;
47 public void channelRead(@Nullable ChannelHandlerContext ctx, @Nullable Object msg) throws Exception {
48 if (msg == null || ctx == null) {
52 if (msg instanceof HttpResponse response) {
53 if (response.status().code() != 200) {
54 logger.trace("ONVIF replied with code {} message is {}", response.status().code(), msg);
57 if (msg instanceof HttpContent content) {
58 incomingMessage += content.content().toString(CharsetUtil.UTF_8);
60 if (msg instanceof LastHttpContent) {
61 onvifConnection.processReply(requestType, incomingMessage);
65 ReferenceCountUtil.release(msg);
70 public void userEventTriggered(@Nullable ChannelHandlerContext ctx, @Nullable Object evt) throws Exception {
74 if (evt instanceof IdleStateEvent) {
75 IdleStateEvent e = (IdleStateEvent) evt;
76 logger.debug("IdleStateEvent received: {}", e.state());
77 onvifConnection.setIsConnected(false);
80 logger.debug("ONVIF netty channel event occurred: {}", evt);
85 public void exceptionCaught(@Nullable ChannelHandlerContext ctx, @Nullable Throwable cause) {
86 if (ctx == null || cause == null) {
89 logger.debug("Exception on ONVIF connection: {}", cause.getMessage());
94 public void handlerRemoved(@Nullable ChannelHandlerContext ctx) {
95 if (requestType == RequestType.PullMessages) {
96 onvifConnection.pullMessageRequests.decrementAndGet();
100 public void setRequestType(RequestType requestType) {
101 this.requestType = requestType;
102 if (requestType == RequestType.PullMessages) {
103 onvifConnection.pullMessageRequests.incrementAndGet();
107 public RequestType getRequestType() {