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.senechome.internal;
15 import java.io.IOException;
16 import java.util.Objects;
17 import java.util.concurrent.ExecutionException;
18 import java.util.concurrent.TimeUnit;
19 import java.util.concurrent.TimeoutException;
21 import org.eclipse.jdt.annotation.NonNullByDefault;
22 import org.eclipse.jetty.client.HttpClient;
23 import org.eclipse.jetty.client.api.ContentResponse;
24 import org.eclipse.jetty.client.api.Request;
25 import org.eclipse.jetty.client.util.StringContentProvider;
26 import org.eclipse.jetty.http.HttpHeader;
27 import org.eclipse.jetty.http.HttpMethod;
28 import org.eclipse.jetty.http.HttpStatus;
29 import org.eclipse.jetty.http.MimeTypes;
30 import org.openhab.binding.senechome.internal.dto.SenecHomeResponse;
31 import org.slf4j.Logger;
32 import org.slf4j.LoggerFactory;
34 import com.google.gson.Gson;
35 import com.google.gson.JsonSyntaxException;
38 * The {@link SenecHomeApi} class configures http client and
39 * performs status requests
41 * @author Steven Schwarznau - Initial contribution
42 * @author Robert Delbrück - Update for Senec API changes
43 * @author Lukas Pindl - Update for writing to safeChargeMode
47 public class SenecHomeApi {
48 private final Logger logger = LoggerFactory.getLogger(SenecHomeApi.class);
49 private final HttpClient httpClient;
50 private final Gson gson = new Gson();
51 private String hostname = "";
53 public SenecHomeApi(HttpClient httpClient) {
54 this.httpClient = httpClient;
57 public void setHostname(String hostname) {
58 this.hostname = hostname;
62 * POST json with empty, but expected fields, to lala.cgi of Senec webinterface
63 * the response will contain the same fields, but with the corresponding values
65 * To receive new values, just modify the Json objects and add them to the thing channels
67 * @return Instance of SenecHomeResponse
68 * @throws TimeoutException Communication failed (Timeout)
69 * @throws ExecutionException Communication failed
70 * @throws IOException Communication failed
71 * @throws InterruptedException Communication failed (Interrupted)
72 * @throws JsonSyntaxException Received response has an invalid json syntax
74 public SenecHomeResponse getStatistics()
75 throws TimeoutException, ExecutionException, IOException, InterruptedException, JsonSyntaxException {
77 String dataToSend = gson.toJson(new SenecHomeResponse());
78 ContentResponse response = postRequest(dataToSend);
79 return Objects.requireNonNull(gson.fromJson(response.getContentAsString(), SenecHomeResponse.class));
83 * POST json, to lala.cgi of Senec webinterface to set a given parameter
85 * @return boolean, wether or not the request was successful
87 public boolean setValue(String section, String id, String value) {
88 String dataToSend = "{\"" + section + "\":{\"" + id + "\":\"" + value + "\"}}";
90 postRequest(dataToSend);
92 } catch (TimeoutException | ExecutionException | IOException | InterruptedException e) {
98 * helper function to handle the actual POST request to the webinterface
100 * @return object of type ContentResponse, the response received to the POST request
101 * @throws TimeoutException Communication failed (Timeout)
102 * @throws ExecutionException Communication failed
103 * @throws IOException Communication failed
104 * @throws InterruptedException Communication failed (Interrupted)
106 private ContentResponse postRequest(String dataToSend)
107 throws TimeoutException, ExecutionException, IOException, InterruptedException {
108 String location = hostname + "/lala.cgi";
109 logger.trace("sending request to: {}", location);
111 Request request = httpClient.newRequest(location);
112 request.header(HttpHeader.ACCEPT, MimeTypes.Type.APPLICATION_JSON.asString());
113 request.header(HttpHeader.CONTENT_TYPE, MimeTypes.Type.APPLICATION_JSON.asString());
114 ContentResponse response = null;
116 logger.trace("data to send: {}", dataToSend);
117 response = request.method(HttpMethod.POST).content(new StringContentProvider(dataToSend))
118 .timeout(15, TimeUnit.SECONDS).send();
119 if (response.getStatus() == HttpStatus.OK_200) {
122 logger.trace("Got unexpected response code {}", response.getStatus());
123 throw new IOException("Got unexpected response code " + response.getStatus());
125 } catch (JsonSyntaxException | InterruptedException | TimeoutException | ExecutionException e) {
126 String errorMessage = "\nlocation: " + location;
127 errorMessage += "\nrequest: " + request.toString();
128 errorMessage += "\nrequest.getHeaders: " + request.getHeaders();
129 if (response == null) {
130 errorMessage += "\nresponse: null";
132 errorMessage += "\nresponse: " + response.toString();
133 errorMessage += "\nresponse.getHeaders: " + response.getHeaders();
134 if (response.getContent() == null) {
135 errorMessage += "\nresponse.getContent is null";
137 errorMessage += "\nresponse.getContentAsString: " + response.getContentAsString();
140 logger.trace("Issue with getting SenecHomeResponse\n{}", errorMessage);