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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.binding.velux.internal;
  14
  15 import java.util.ArrayList;
  16 import java.util.List;
  17
  18 import org.eclipse.jdt.annotation.NonNullByDefault;
  19 import org.openhab.core.items.GenericItem;
  20 import org.openhab.core.library.items.NumberItem;
  21 import org.openhab.core.library.items.RollershutterItem;
  22 import org.openhab.core.library.items.StringItem;
  23 import org.openhab.core.library.items.SwitchItem;
  24 import org.openhab.core.thing.ThingTypeUID;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 /**
  29  * Enumeration of Types of a Velux item.
  30  * <br>
  31  * Provides information about:
  32  * <ul>
  33  * <li>associated thing identified by String</li>
  34  * <li>defined channel identified by String</li>
  35  * <li>{@link #getItemClass} item class,</li>
  36  * <li>{@link #isReadable} about a read possibility,</li>
  37  * <li>{@link #isWritable} about a write possibility,</li>
  38  * <li>{@link #isExecutable} about an execute possibility,</li>
  39  * <li>{@link #isToBeRefreshed} about necessarily to be refreshed,</li>
  40  * <li>{@link #isToBeRefreshedNow} about necessarily to be refreshed at this time,</li>
  41  * <li>{@link #isChannel} as indication of being handled as Channel of a thing,</li>
  42  * <li>{@link #isProperty} as indication of being handled as property of a thing.</li>
  43  * </ul>
  44  *
  45  * In addition there are helper methods providing information about:
  46  *
  47  * <ul>
  48  * <li>{@link #getIdentifier} returning the common identifier string,</li>
  49  * <li>{@link #getByThingAndChannel} to retrieve an enum instance selected by Thing
  50  * and Channel identifier,</li>
  51  * <li>{@link #getPropertyEntriesByThing} to retrieve any Thing identifiers as array of
  52  * String,</li>
  53  * </ul>
  54  * <p>
  55  * Within this enumeration, the expected behaviour of the OpenHAB item (resp. Channel or Property) is set. For each kind
  56  * of Channel (i.e. bridge or device) parameter a set of information is defined:
  57  * <ul>
  58  * <li>
  59  * Unique identification by:
  60  * <ul>
  61  * <li>Thing name as string,</li>
  62  * <li>Channel name as string,</li>
  63  * </ul>
  64  * </li>
  65  * <li>Channel type as OpenHAB type,</li>
  66  * <li>ability flag whether this item is to be read,</li>
  67  * <li>ability flag whether this item is able to be modified,</li>
  68  * <li>ability flag whether this item is to be used as execution trigger.</li>
  69  * </ul>
  70  *
  71  * @author Guenther Schreiner - Initial contribution
  72  *
  73  */
  74 @NonNullByDefault
  75 public enum VeluxItemType {
  76     // @formatter:off
  77     UNKNOWN(VeluxBindingConstants.THING_TYPE_BRIDGE,                            VeluxBindingConstants.UNKNOWN,                       TypeFlavor.UNUSABLE),
  78     //
  79     BINDING_INFORMATION(VeluxBindingConstants.THING_TYPE_BINDING,               VeluxBindingConstants.CHANNEL_BINDING_INFORMATION,   TypeFlavor.READONLY_VOLATILE_STRING),
  80     //
  81     BRIDGE_STATUS(VeluxBindingConstants.THING_TYPE_BRIDGE,                      VeluxBindingConstants.CHANNEL_BRIDGE_STATUS,         TypeFlavor.READONLY_VOLATILE_STRING),
  82     BRIDGE_DOWNTIME(VeluxBindingConstants.THING_TYPE_BRIDGE,                    VeluxBindingConstants.CHANNEL_BRIDGE_DOWNTIME,       TypeFlavor.READONLY_VOLATILE_NUMBER),
  83     BRIDGE_RELOAD(VeluxBindingConstants.THING_TYPE_BRIDGE,                      VeluxBindingConstants.CHANNEL_BRIDGE_RELOAD,         TypeFlavor.INITIATOR),
  84     BRIDGE_DO_DETECTION(VeluxBindingConstants.THING_TYPE_BRIDGE,                VeluxBindingConstants.CHANNEL_BRIDGE_DO_DETECTION,   TypeFlavor.INITIATOR),
  85
  86     BRIDGE_FIRMWARE(VeluxBindingConstants.THING_TYPE_BRIDGE,                    VeluxBindingConstants.PROPERTY_BRIDGE_FIRMWARE,      TypeFlavor.PROPERTY),
  87     BRIDGE_ADDRESS(VeluxBindingConstants.THING_TYPE_BRIDGE,                     VeluxBindingConstants.PROPERTY_BRIDGE_ADDRESS,       TypeFlavor.PROPERTY),
  88     BRIDGE_SUBNETMASK(VeluxBindingConstants.THING_TYPE_BRIDGE,                  VeluxBindingConstants.PROPERTY_BRIDGE_SUBNETMASK,    TypeFlavor.PROPERTY),
  89     BRIDGE_DEFAULTGW(VeluxBindingConstants.THING_TYPE_BRIDGE,                   VeluxBindingConstants.PROPERTY_BRIDGE_DEFAULTGW,     TypeFlavor.PROPERTY),
  90     BRIDGE_DHCP(VeluxBindingConstants.THING_TYPE_BRIDGE,                        VeluxBindingConstants.PROPERTY_BRIDGE_DHCP,          TypeFlavor.PROPERTY),
  91     BRIDGE_WLANSSID(VeluxBindingConstants.THING_TYPE_BRIDGE,                    VeluxBindingConstants.PROPERTY_BRIDGE_WLANSSID,      TypeFlavor.PROPERTY),
  92     BRIDGE_WLANPASSWORD(VeluxBindingConstants.THING_TYPE_BRIDGE,                VeluxBindingConstants.PROPERTY_BRIDGE_WLANPASSWORD,  TypeFlavor.PROPERTY),
  93     BRIDGE_PRODUCTS(VeluxBindingConstants.THING_TYPE_BRIDGE,                    VeluxBindingConstants.PROPERTY_BRIDGE_PRODUCTS,      TypeFlavor.PROPERTY),
  94     BRIDGE_SCENES(VeluxBindingConstants.THING_TYPE_BRIDGE,                      VeluxBindingConstants.PROPERTY_BRIDGE_SCENES,        TypeFlavor.PROPERTY),
  95     BRIDGE_CHECK(VeluxBindingConstants.THING_TYPE_BRIDGE,                       VeluxBindingConstants.PROPERTY_BRIDGE_CHECK,         TypeFlavor.PROPERTY),
  96     //
  97     ACTUATOR_POSITION(VeluxBindingConstants.THING_TYPE_VELUX_ACTUATOR,          VeluxBindingConstants.CHANNEL_ACTUATOR_POSITION,     TypeFlavor.MANIPULATOR_SHUTTER),
  98     ACTUATOR_STATE(VeluxBindingConstants.THING_TYPE_VELUX_ACTUATOR,             VeluxBindingConstants.CHANNEL_ACTUATOR_STATE,        TypeFlavor.MANIPULATOR_SWITCH),
  99     ACTUATOR_LIMIT_MINIMUM(VeluxBindingConstants.THING_TYPE_VELUX_ACTUATOR,     VeluxBindingConstants.CHANNEL_ACTUATOR_LIMIT_MINIMUM,TypeFlavor.MANIPULATOR_SHUTTER),
 100     ACTUATOR_LIMIT_MAXIMUM(VeluxBindingConstants.THING_TYPE_VELUX_ACTUATOR,     VeluxBindingConstants.CHANNEL_ACTUATOR_LIMIT_MAXIMUM,TypeFlavor.MANIPULATOR_SHUTTER),
 101     //
 102     ROLLERSHUTTER_POSITION(VeluxBindingConstants.THING_TYPE_VELUX_ROLLERSHUTTER,VeluxBindingConstants.CHANNEL_ACTUATOR_POSITION,     TypeFlavor.MANIPULATOR_SHUTTER),
 103     ROLLERSHUTTER_LIMIT_MINIMUM(VeluxBindingConstants.THING_TYPE_VELUX_ROLLERSHUTTER,VeluxBindingConstants.CHANNEL_ACTUATOR_LIMIT_MINIMUM,TypeFlavor.MANIPULATOR_SHUTTER),
 104     ROLLERSHUTTER_LIMIT_MAXIMUM(VeluxBindingConstants.THING_TYPE_VELUX_ROLLERSHUTTER,VeluxBindingConstants.CHANNEL_ACTUATOR_LIMIT_MAXIMUM,TypeFlavor.MANIPULATOR_SHUTTER),
 105     //
 106     WINDOW_POSITION(VeluxBindingConstants.THING_TYPE_VELUX_WINDOW,              VeluxBindingConstants.CHANNEL_ACTUATOR_POSITION,     TypeFlavor.MANIPULATOR_SHUTTER),
 107     WINDOW_LIMIT_MINIMUM(VeluxBindingConstants.THING_TYPE_VELUX_WINDOW,         VeluxBindingConstants.CHANNEL_ACTUATOR_LIMIT_MINIMUM,TypeFlavor.MANIPULATOR_SHUTTER),
 108     WINDOW_LIMIT_MAXIMUM(VeluxBindingConstants.THING_TYPE_VELUX_WINDOW,         VeluxBindingConstants.CHANNEL_ACTUATOR_LIMIT_MAXIMUM,TypeFlavor.MANIPULATOR_SHUTTER),
 109     //
 110     SCENE_ACTION(VeluxBindingConstants.THING_TYPE_VELUX_SCENE,                  VeluxBindingConstants.CHANNEL_SCENE_ACTION,          TypeFlavor.INITIATOR),
 111     SCENE_SILENTMODE(VeluxBindingConstants.THING_TYPE_VELUX_SCENE,              VeluxBindingConstants.CHANNEL_SCENE_SILENTMODE,      TypeFlavor.WRITEONLY_VOLATILE_SWITCH),
 112     //
 113     VSHUTTER_POSITION(VeluxBindingConstants.THING_TYPE_VELUX_VSHUTTER,          VeluxBindingConstants.CHANNEL_VSHUTTER_POSITION,     TypeFlavor.MANIPULATOR_SHUTTER),
 114     ;
 115     // @formatter:on
 116
 117     private enum TypeFlavor {
 118         /**
 119          * Used to present read-only non-volatile configuration parameters as StringItem.
 120          */
 121         READONLY_STATIC_STRING,
 122         /**
 123          * Used to present read-only non-volatile configuration parameters as SwitchItem.
 124          */
 125         READONLY_STATIC_SWITCH,
 126         /**
 127          * Used to present volatile configuration parameters as StringItem.
 128          */
 129         READONLY_VOLATILE_STRING,
 130         /**
 131          * Used to present volatile configuration parameters as NumberItem.
 132          */
 133         READONLY_VOLATILE_NUMBER,
 134         /**
 135          * Used to present volatile configuration parameters as NumberItem.
 136          */
 137         WRITEONLY_VOLATILE_SWITCH,
 138         /**
 139          * Used to present volatile configuration parameters as SwitchItem.
 140          */
 141         READWRITE_VOLATILE_SWITCH,
 142         /**
 143          * Used to initiate an action.
 144          */
 145         INITIATOR,
 146         /**
 147          * Used to manipulate an actuator.
 148          */
 149         MANIPULATOR_SHUTTER,
 150         /**
 151          * Used to manipulate an actuator.
 152          */
 153         MANIPULATOR_SWITCH,
 154         /**
 155          * Used to present read-only non-volatile configuration parameter (being handled as property of aThing).
 156          */
 157         PROPERTY,
 158         /**
 159          * Used to define an UNUSABLE entry.
 160          */
 161         UNUSABLE,
 162     }
 163
 164     /*
 165      * ***************************
 166      * ***** Private Objects *****
 167      */
 168
 169     private ThingTypeUID thingIdentifier;
 170     private String channelIdentifier;
 171     private Class<? extends GenericItem> itemClass;
 172     private boolean itemIsReadable;
 173     private boolean itemIsWritable;
 174     private boolean itemIsExecutable;
 175     private boolean itemIsToBeRefreshed;
 176     private int itemsRefreshDivider;
 177     private boolean itemIsChannel;
 178     private boolean itemIsProperty;
 179
 180     private static final Logger LOGGER = LoggerFactory.getLogger(VeluxItemType.class);
 181
 182     private static final int REFRESH_CYCLE_FIRST_TIME = 0;
 183     private static final int REFRESH_ONCE_A_DAY = 8640;
 184     private static final int REFRESH_EACH_HOUR = 360;
 185     private static final int REFRESH_EACH_MINUTE = 6;
 186     private static final int REFRESH_EVERY_CYCLE = 1;
 187
 188     /*
 189      * ************************
 190      * ***** Constructors *****
 191      */
 192
 193     VeluxItemType(ThingTypeUID thingIdentifier, String channelIdentifier, TypeFlavor typeFlavor) {
 194         this.thingIdentifier = thingIdentifier;
 195         this.channelIdentifier = channelIdentifier;
 196         this.itemIsChannel = true;
 197         this.itemIsProperty = false;
 198         switch (typeFlavor) {
 199             case READONLY_STATIC_STRING:
 200                 this.itemClass = StringItem.class;
 201                 this.itemIsReadable = true;
 202                 this.itemIsWritable = false;
 203                 this.itemIsExecutable = false;
 204                 this.itemIsToBeRefreshed = true;
 205                 this.itemsRefreshDivider = REFRESH_ONCE_A_DAY;
 206                 break;
 207             case READONLY_STATIC_SWITCH:
 208                 this.itemClass = SwitchItem.class;
 209                 this.itemIsReadable = true;
 210                 this.itemIsWritable = false;
 211                 this.itemIsExecutable = false;
 212                 this.itemIsToBeRefreshed = true;
 213                 this.itemsRefreshDivider = REFRESH_ONCE_A_DAY;
 214                 break;
 215
 216             case READONLY_VOLATILE_STRING:
 217                 this.itemClass = StringItem.class;
 218                 this.itemIsReadable = true;
 219                 this.itemIsWritable = false;
 220                 this.itemIsExecutable = false;
 221                 this.itemIsToBeRefreshed = true;
 222                 this.itemsRefreshDivider = REFRESH_EACH_MINUTE;
 223                 break;
 224             case READONLY_VOLATILE_NUMBER:
 225                 this.itemClass = NumberItem.class;
 226                 this.itemIsReadable = true;
 227                 this.itemIsWritable = false;
 228                 this.itemIsExecutable = false;
 229                 this.itemIsToBeRefreshed = true;
 230                 this.itemsRefreshDivider = REFRESH_EVERY_CYCLE;
 231                 break;
 232             case WRITEONLY_VOLATILE_SWITCH:
 233                 this.itemClass = SwitchItem.class;
 234                 this.itemIsReadable = false;
 235                 this.itemIsWritable = true;
 236                 this.itemIsExecutable = false;
 237                 this.itemIsToBeRefreshed = false;
 238                 this.itemsRefreshDivider = REFRESH_EACH_MINUTE;
 239                 break;
 240             case READWRITE_VOLATILE_SWITCH:
 241                 this.itemClass = SwitchItem.class;
 242                 this.itemIsReadable = true;
 243                 this.itemIsWritable = true;
 244                 this.itemIsExecutable = false;
 245                 this.itemIsToBeRefreshed = true;
 246                 this.itemsRefreshDivider = REFRESH_EVERY_CYCLE;
 247                 break;
 248
 249             case INITIATOR:
 250                 this.itemClass = SwitchItem.class;
 251                 this.itemIsReadable = false;
 252                 this.itemIsWritable = false;
 253                 this.itemIsExecutable = true;
 254                 this.itemIsToBeRefreshed = false;
 255                 this.itemsRefreshDivider = 1;
 256                 break;
 257
 258             case MANIPULATOR_SHUTTER:
 259                 this.itemClass = RollershutterItem.class;
 260                 this.itemIsReadable = true;
 261                 this.itemIsWritable = true;
 262                 this.itemIsExecutable = false;
 263                 this.itemIsToBeRefreshed = true;
 264                 this.itemsRefreshDivider = REFRESH_EACH_MINUTE;
 265                 break;
 266
 267             case MANIPULATOR_SWITCH:
 268                 this.itemClass = SwitchItem.class;
 269                 this.itemIsReadable = true;
 270                 this.itemIsWritable = true;
 271                 this.itemIsExecutable = false;
 272                 this.itemIsToBeRefreshed = true;
 273                 this.itemsRefreshDivider = REFRESH_EACH_MINUTE;
 274                 break;
 275
 276             case PROPERTY:
 277                 this.itemClass = StringItem.class;
 278                 this.itemIsReadable = true;
 279                 this.itemIsWritable = false;
 280                 this.itemIsExecutable = false;
 281                 this.itemIsToBeRefreshed = true;
 282                 this.itemsRefreshDivider = REFRESH_EACH_HOUR;
 283                 this.itemIsChannel = false;
 284                 this.itemIsProperty = true;
 285                 break;
 286
 287             case UNUSABLE:
 288             default:
 289                 this.itemClass = StringItem.class;
 290                 this.itemIsReadable = false;
 291                 this.itemIsWritable = false;
 292                 this.itemIsExecutable = false;
 293                 this.itemIsToBeRefreshed = false;
 294                 this.itemsRefreshDivider = REFRESH_ONCE_A_DAY;
 295                 this.itemIsChannel = false;
 296         }
 297     }
 298
 299     /*
 300      * ********************************
 301      * ***** Class access methods *****
 302      */
 303
 304     @Override
 305     public String toString() {
 306         return this.thingIdentifier + "/" + this.channelIdentifier;
 307     }
 308
 309     /**
 310      * {@link VeluxItemType} access method to query Identifier on this type of item.
 311      *
 312      * @return <b>thingIdentifier</b> of type String describing the value of the enum {@link VeluxItemType}
 313      *         return
 314      */
 315     public ThingTypeUID getThingTypeUID() {
 316         return this.thingIdentifier;
 317     }
 318
 319     /**
 320      * {@link VeluxItemType} access method to query common (channel/property) identifier on this type of item.
 321      *
 322      * @return <b>channelIdentifier</b> of type String describing the value of the enum {@link VeluxItemType}.
 323      */
 324     public String getIdentifier() {
 325         return this.channelIdentifier;
 326     }
 327
 328     /**
 329      * {@link VeluxItemType} access method to query the appropriate type of item.
 330      *
 331      * @return <b>itemClass</b> of type Item describing the possible type of this item.
 332      */
 333     public Class<? extends GenericItem> getItemClass() {
 334         return this.itemClass;
 335     }
 336
 337     /**
 338      * {@link VeluxItemType} access method to query Read possibility on this type of item.
 339      *
 340      * @return <b>itemIsReadable</b> of type boolean describing the ability to perform a write operation.
 341      */
 342     public boolean isReadable() {
 343         return this.itemIsReadable;
 344     }
 345
 346     /**
 347      * {@link VeluxItemType} access method to query Write possibility on this type of item.
 348      *
 349      * @return <b>itemIsWritable</b> of type boolean describing the ability to perform a write operation.
 350      */
 351     public boolean isWritable() {
 352         return this.itemIsWritable;
 353     }
 354
 355     /**
 356      * {@link VeluxItemType} access method to query Execute possibility on this type of item.
 357      *
 358      * @return <b>isExecute</b> of type boolean describing the ability to perform a write operation.
 359      */
 360     public boolean isExecutable() {
 361         return this.itemIsExecutable;
 362     }
 363
 364     /**
 365      * {@link VeluxItemType} access method to query the need of refresh on this type of item.
 366      *
 367      * @return <b>isExecute</b> of type boolean describing the ability to perform a write operation.
 368      */
 369     public boolean isToBeRefreshed() {
 370         return this.itemIsToBeRefreshed;
 371     }
 372
 373     /**
 374      * {@link VeluxItemType} access method to query the refreshMSecs interval on this type of item.
 375      *
 376      * @return <b>refreshDivider</b> of type int describing the factor.
 377      */
 378     public int getRefreshDivider() {
 379         return this.itemsRefreshDivider;
 380     }
 381
 382     /**
 383      * {@link VeluxItemType} access method to query the type of this item.
 384      *
 385      * @return <b>isChannel</b> of type boolean describing the need to be handled as channel.
 386      */
 387     public boolean isChannel() {
 388         return this.itemIsChannel;
 389     }
 390
 391     /**
 392      * {@link VeluxItemType} access method to query the type of this item.
 393      *
 394      * @return <b>itemIsProperty</b> of type boolean describing the need to be handled as property.
 395      */
 396     public boolean isProperty() {
 397         return this.itemIsProperty;
 398     }
 399
 400     /**
 401      * {@link VeluxItemType} access method to find an enum by itemTypeName.
 402      *
 403      * @param itemTypeName as name of requested Thing of type String.
 404      *
 405      * @return <b>veluxItemType</b> of type VeluxItemType describing the appropriate enum.
 406      */
 407     public VeluxItemType getByString(String itemTypeName) {
 408         try {
 409             return VeluxItemType.valueOf(itemTypeName);
 410         } catch (IllegalArgumentException e) {
 411             return UNKNOWN;
 412         }
 413     }
 414
 415     /**
 416      * {@link VeluxItemType} access method to find an enum by name.
 417      *
 418      * @param thingIdentifier as name of requested Thing of type String.
 419      * @param channelIdentifier as name of requested Channel of type String.
 420      *
 421      * @return <b>veluxItemType</b> of type VeluxItemType describing the appropriate enum.
 422      */
 423     public static VeluxItemType getByThingAndChannel(ThingTypeUID thingIdentifier, String channelIdentifier) {
 424         for (VeluxItemType v : VeluxItemType.values()) {
 425             if (thingIdentifier.equals(v.thingIdentifier) && channelIdentifier.equals(v.channelIdentifier)) {
 426                 LOGGER.trace("getByThingAndChannel({},{}) returns enum {}.", thingIdentifier, channelIdentifier, v);
 427                 return v;
 428             }
 429         }
 430         LOGGER.trace("getByThingAndChannel({},{}) returns enum UNKNOWN.", thingIdentifier, channelIdentifier);
 431         return UNKNOWN;
 432     }
 433
 434     /**
 435      * {@link VeluxItemType} access method to find similar enum entries by thingIdentifier.
 436      *
 437      * @param thingIdentifier as name of requested Thing of type String.
 438      *
 439      * @return <b>listOfveluxItemType</b> of type List of VeluxItemType containing all similar enum entries.
 440      */
 441     public static List<VeluxItemType> getPropertyEntriesByThing(ThingTypeUID thingIdentifier) {
 442         List<VeluxItemType> list = new ArrayList<>();
 443         for (VeluxItemType v : VeluxItemType.values()) {
 444             if (thingIdentifier.equals(v.thingIdentifier) && v.itemIsProperty) {
 445                 list.add(v);
 446             }
 447         }
 448         LOGGER.trace("getPropertyEntriesByThing({}) returns {}.", thingIdentifier, list);
 449         return list;
 450     }
 451
 452     /**
 453      * Helper function: Calculate modulo.
 454      *
 455      * @param a as dividend.
 456      * @param b as divisor.
 457      *
 458      * @return <b>true</b> if zero is remainder after division.
 459      */
 460     private static boolean isModulo(int a, int b) {
 461         return (a % b) == 0;
 462     }
 463
 464     /**
 465      * {@link VeluxItemType} access method to determine the necessity of being refreshed
 466      * within the current refresh cycle.
 467      *
 468      * @param refreshCycleCounter as identification of the refresh round.
 469      * @param thingIdentifier as name of requested Thing.
 470      * @param channelIdentifier as name of requested Channel.
 471      *
 472      * @return <b>boolean</b> value which expresses the need.
 473      */
 474     public static boolean isToBeRefreshedNow(int refreshCycleCounter, ThingTypeUID thingIdentifier,
 475             String channelIdentifier) {
 476         VeluxItemType itemType = getByThingAndChannel(thingIdentifier, channelIdentifier);
 477
 478         if (itemType == VeluxItemType.UNKNOWN) {
 479             LOGGER.warn("isToBeRefreshedNow({},{},{}): returning false, as item is not found.", refreshCycleCounter,
 480                     thingIdentifier, channelIdentifier);
 481             return false;
 482         }
 483
 484         if (((refreshCycleCounter == REFRESH_CYCLE_FIRST_TIME) && (itemType.isReadable()))
 485                 || (itemType.isToBeRefreshed())) {
 486             if ((refreshCycleCounter == REFRESH_CYCLE_FIRST_TIME)
 487                     || (isModulo(refreshCycleCounter, itemType.getRefreshDivider()))) {
 488                 LOGGER.trace("isToBeRefreshedNow(): returning true, as item is to be refreshed, now.");
 489                 return true;
 490             } else {
 491                 LOGGER.trace("isToBeRefreshedNow(): returning false, as refresh cycle has not yet come for this item.");
 492             }
 493         } else {
 494             LOGGER.trace("isToBeRefreshedNow(): returning false, as item is not refreshable.");
 495         }
 496         return false;
 497     }
 498 }