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   1 /**
   2  * Copyright (c) 2010-2023 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   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
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.solaredge.internal.command;
  14
  15 import static org.openhab.binding.solaredge.internal.SolarEdgeBindingConstants.*;
  16
  17 import java.nio.charset.StandardCharsets;
  18 import java.text.SimpleDateFormat;
  19 import java.util.Calendar;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.eclipse.jetty.client.api.Request;
  24 import org.eclipse.jetty.client.api.Result;
  25 import org.eclipse.jetty.http.HttpMethod;
  26 import org.eclipse.jetty.http.HttpStatus;
  27 import org.openhab.binding.solaredge.internal.callback.AbstractCommandCallback;
  28 import org.openhab.binding.solaredge.internal.handler.SolarEdgeHandler;
  29 import org.openhab.binding.solaredge.internal.model.AggregateDataResponsePublicApi;
  30 import org.openhab.binding.solaredge.internal.model.AggregateDataResponseTransformerPublicApi;
  31 import org.openhab.binding.solaredge.internal.model.AggregatePeriod;
  32
  33 /**
  34  * command that retrieves status values for aggregate data channels via public API
  35  *
  36  * @author Alexander Friese - initial contribution
  37  */
  38 @NonNullByDefault
  39 public class AggregateDataUpdatePublicApi extends AbstractCommandCallback implements SolarEdgeCommand {
  40
  41     /**
  42      * the solaredge handler
  43      */
  44     private final SolarEdgeHandler handler;
  45     private final AggregateDataResponseTransformerPublicApi transformer;
  46
  47     /**
  48      * data aggregation level
  49      */
  50     private final AggregatePeriod period;
  51
  52     /**
  53      * date format which is expected by the API
  54      */
  55     private final SimpleDateFormat dateFormat;
  56     private int retries = 0;
  57
  58     /**
  59      * the constructor
  60      *
  61      * @param handler
  62      * @param period
  63      */
  64     public AggregateDataUpdatePublicApi(SolarEdgeHandler handler, AggregatePeriod period) {
  65         super(handler.getConfiguration());
  66         this.dateFormat = new SimpleDateFormat("yyyy-MM-dd");
  67         this.handler = handler;
  68         this.transformer = new AggregateDataResponseTransformerPublicApi(handler);
  69         this.period = period;
  70     }
  71
  72     @Override
  73     protected Request prepareRequest(Request requestToPrepare) {
  74         requestToPrepare.followRedirects(false);
  75         requestToPrepare.method(HttpMethod.GET);
  76
  77         String currentDate = dateFormat.format(Calendar.getInstance().getTime());
  78
  79         requestToPrepare.param(PUBLIC_DATA_API_TIME_UNIT_FIELD, period.toString());
  80         requestToPrepare.param(PUBLIC_DATA_API_START_TIME_FIELD, currentDate + " " + BEGIN_OF_DAY_TIME);
  81         requestToPrepare.param(PUBLIC_DATA_API_END_TIME_FIELD, currentDate + " " + END_OF_DAY_TIME);
  82
  83         return requestToPrepare;
  84     }
  85
  86     @Override
  87     protected String getURL() {
  88         return PUBLIC_DATA_API_URL + config.getSolarId() + PUBLIC_DATA_API_URL_AGGREGATE_DATA_SUFFIX;
  89     }
  90
  91     @Override
  92     public void onComplete(@Nullable Result result) {
  93         logger.debug("onComplete()");
  94
  95         if (!HttpStatus.Code.OK.equals(getCommunicationStatus().getHttpCode())) {
  96             updateListenerStatus();
  97             if (retries++ < MAX_RETRIES) {
  98                 handler.getWebInterface().enqueueCommand(this);
  99             }
 100         } else {
 101             String json = getContentAsString(StandardCharsets.UTF_8);
 102             if (json != null) {
 103                 logger.debug("JSON String: {}", json);
 104                 AggregateDataResponsePublicApi jsonObject = fromJson(json, AggregateDataResponsePublicApi.class);
 105                 if (jsonObject != null) {
 106                     handler.updateChannelStatus(transformer.transform(jsonObject, period));
 107                 }
 108             }
 109         }
 110     }
 111 }