git.basschouten.com Git - openhab-addons.git/blob

   1 /**
   2  * Copyright (c) 2010-2020 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.ftpupload.internal;
  14
  15 import static org.openhab.binding.ftpupload.internal.FtpUploadBindingConstants.THING_TYPE_IMAGERECEIVER;
  16
  17 import java.util.Collections;
  18 import java.util.Dictionary;
  19 import java.util.Set;
  20
  21 import org.apache.commons.lang.StringUtils;
  22 import org.apache.ftpserver.FtpServerConfigurationException;
  23 import org.apache.ftpserver.ftplet.FtpException;
  24 import org.openhab.binding.ftpupload.internal.ftp.FtpServer;
  25 import org.openhab.binding.ftpupload.internal.handler.FtpUploadHandler;
  26 import org.openhab.core.thing.Thing;
  27 import org.openhab.core.thing.ThingStatus;
  28 import org.openhab.core.thing.ThingStatusDetail;
  29 import org.openhab.core.thing.ThingStatusInfo;
  30 import org.openhab.core.thing.ThingTypeUID;
  31 import org.openhab.core.thing.binding.BaseThingHandlerFactory;
  32 import org.openhab.core.thing.binding.ThingHandler;
  33 import org.openhab.core.thing.binding.ThingHandlerFactory;
  34 import org.osgi.service.component.ComponentContext;
  35 import org.osgi.service.component.annotations.Component;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 /**
  40  * The {@link FtpUploadHandlerFactory} is responsible for creating things and thing
  41  * handlers.
  42  *
  43  * @author Pauli Anttila - Initial contribution
  44  */
  45 @Component(service = ThingHandlerFactory.class, configurationPid = "binding.ftpupload")
  46 public class FtpUploadHandlerFactory extends BaseThingHandlerFactory {
  47     private final Logger logger = LoggerFactory.getLogger(FtpUploadHandlerFactory.class);
  48
  49     private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections.singleton(THING_TYPE_IMAGERECEIVER);
  50
  51     private final int DEFAULT_PORT = 2121;
  52     private final int DEFAULT_IDLE_TIMEOUT = 60;
  53
  54     private FtpServer ftpServer;
  55
  56     @Override
  57     public boolean supportsThingType(ThingTypeUID thingTypeUID) {
  58         return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
  59     }
  60
  61     @Override
  62     protected ThingHandler createHandler(Thing thing) {
  63         ThingTypeUID thingTypeUID = thing.getThingTypeUID();
  64
  65         if (thingTypeUID.equals(THING_TYPE_IMAGERECEIVER)) {
  66             if (ftpServer.getStartUpErrorReason() != null) {
  67                 thing.setStatusInfo(new ThingStatusInfo(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
  68                         ftpServer.getStartUpErrorReason()));
  69             }
  70             return new FtpUploadHandler(thing, ftpServer);
  71         }
  72
  73         return null;
  74     }
  75
  76     @Override
  77     protected synchronized void activate(ComponentContext componentContext) {
  78         super.activate(componentContext);
  79         ftpServer = new FtpServer();
  80         modified(componentContext);
  81     }
  82
  83     @Override
  84     protected synchronized void deactivate(ComponentContext componentContext) {
  85         stopFtpServer();
  86         ftpServer = null;
  87         super.deactivate(componentContext);
  88     }
  89
  90     protected synchronized void modified(ComponentContext componentContext) {
  91         stopFtpServer();
  92         Dictionary<String, Object> properties = componentContext.getProperties();
  93
  94         int port = DEFAULT_PORT;
  95         int idleTimeout = DEFAULT_IDLE_TIMEOUT;
  96
  97         if (properties.get("port") != null) {
  98             String strPort = properties.get("port").toString();
  99             if (StringUtils.isNotEmpty(strPort)) {
 100                 try {
 101                     port = Integer.valueOf(strPort);
 102                 } catch (NumberFormatException e) {
 103                     logger.warn("Invalid port number '{}', using default port {}", strPort, port);
 104                 }
 105             }
 106         }
 107
 108         if (properties.get("idleTimeout") != null) {
 109             String strIdleTimeout = properties.get("idleTimeout").toString();
 110             if (StringUtils.isNotEmpty(strIdleTimeout)) {
 111                 try {
 112                     idleTimeout = Integer.valueOf(strIdleTimeout);
 113                 } catch (NumberFormatException e) {
 114                     logger.warn("Invalid idle timeout '{}', using default timeout {}", strIdleTimeout, idleTimeout);
 115                 }
 116             }
 117         }
 118
 119         try {
 120             logger.debug("Starting FTP server, port={}, idleTimeout={}", port, idleTimeout);
 121             ftpServer.startServer(port, idleTimeout);
 122         } catch (FtpException | FtpServerConfigurationException e) {
 123             logger.warn("FTP server starting failed, reason: {}", e.getMessage());
 124         }
 125     }
 126
 127     private void stopFtpServer() {
 128         logger.debug("Stopping FTP server");
 129         ftpServer.stopServer();
 130     }
 131 }