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   1 /**
   2  * Copyright (c) 2010-2021 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.io.imperihome.internal.handler;
  14
  15 import java.io.UnsupportedEncodingException;
  16 import java.net.URLDecoder;
  17 import java.util.regex.Matcher;
  18
  19 import javax.servlet.http.HttpServletRequest;
  20
  21 import org.openhab.io.imperihome.internal.model.device.AbstractDevice;
  22 import org.openhab.io.imperihome.internal.processor.DeviceRegistry;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 /**
  27  * Device action request handler.
  28  *
  29  * @author Pepijn de Geus - Initial contribution
  30  */
  31 public class DeviceActionHandler {
  32
  33     private static final String CHARSET = "UTF-8";
  34
  35     private final Logger logger = LoggerFactory.getLogger(DeviceActionHandler.class);
  36
  37     private final DeviceRegistry deviceRegistry;
  38
  39     public DeviceActionHandler(DeviceRegistry deviceRegistry) {
  40         this.deviceRegistry = deviceRegistry;
  41     }
  42
  43     public void handle(HttpServletRequest req, Matcher urlMatcher) {
  44         String deviceId, action, value;
  45         try {
  46             deviceId = URLDecoder.decode(urlMatcher.group(1), CHARSET);
  47             action = URLDecoder.decode(urlMatcher.group(2), CHARSET);
  48
  49             if (urlMatcher.group(3) == null) {
  50                 value = null;
  51             } else {
  52                 value = URLDecoder.decode(urlMatcher.group(3), CHARSET);
  53             }
  54         } catch (UnsupportedEncodingException e) {
  55             throw new RuntimeException("Could not decode request params", e);
  56         }
  57
  58         logger.debug("Action request for device {}: [{}] [{}]", deviceId, action, value);
  59
  60         AbstractDevice device = deviceRegistry.getDevice(deviceId);
  61         if (device == null) {
  62             logger.warn("Received action request for unknown device: {}", urlMatcher.group(0));
  63         } else {
  64             device.performAction(action, value);
  65         }
  66     }
  67 }