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   1 /*
   2  * Copyright (C) 2017 - 2020 Free Software Foundation
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU Affero General Public License as
   6  * published by the Free Software Foundation, either version 3 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU Affero General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Affero General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.mxchange.jfinancials.beans.business.headquarter.list;
  18
  19 import fish.payara.cdi.jsr107.impl.NamedCache;
  20 import java.text.MessageFormat;
  21 import java.util.Comparator;
  22 import java.util.LinkedList;
  23 import java.util.List;
  24 import java.util.Objects;
  25 import javax.annotation.PostConstruct;
  26 import javax.cache.Cache;
  27 import javax.ejb.EJB;
  28 import javax.enterprise.event.Observes;
  29 import javax.faces.view.ViewScoped;
  30 import javax.inject.Inject;
  31 import javax.inject.Named;
  32 import org.mxchange.jcontactsbusiness.events.headquarter.added.ObservableHeadquarterAddedEvent;
  33 import org.mxchange.jcontactsbusiness.exceptions.headquarter.HeadquarterNotFoundException;
  34 import org.mxchange.jcontactsbusiness.model.headquarter.Headquarter;
  35 import org.mxchange.jcontactsbusiness.model.headquarter.HeadquarterSessionBeanRemote;
  36 import org.mxchange.jcontactsbusiness.model.headquarter.Headquarters;
  37 import org.mxchange.jfinancials.beans.BaseFinancialsBean;
  38
  39 /**
  40  * A list bean for headquarter
  41  * <p>
  42  * @author Roland Häder<roland@mxchange.org>
  43  */
  44 @Named ("headquarterListController")
  45 @ViewScoped
  46 public class FinancialsHeadquarterListWebViewBean extends BaseFinancialsBean implements FinancialsHeadquarterListWebViewController {
  47
  48         /**
  49          * Serial number
  50          */
  51         private static final long serialVersionUID = 5_028_697_360_466L;
  52
  53         /**
  54          * A list of all headquarter
  55          */
  56         private final List<Headquarter> allHeadquarters;
  57
  58         /**
  59          * A list of filtered headquarter
  60          */
  61         private List<Headquarter> filteredHeadquarters;
  62
  63         /**
  64          * EJB for administrative purposes
  65          */
  66         @EJB (lookup = "java:global/jfinancials-ejb/headquarter!org.mxchange.jcontactsbusiness.model.headquarter.HeadquarterSessionBeanRemote")
  67         private HeadquarterSessionBeanRemote headquarterBean;
  68
  69         /**
  70          * A list of all headquarter (globally)
  71          */
  72         @Inject
  73         @NamedCache (cacheName = "headquarterCache")
  74         private transient Cache<Long, Headquarter> headquarterCache;
  75
  76         /**
  77          * Currently selected headquarter
  78          */
  79         private Headquarter selectedHeadquarter;
  80
  81         /**
  82          * Default constructor
  83          */
  84         public FinancialsHeadquarterListWebViewBean () {
  85                 // Call super constructor
  86                 super();
  87
  88                 // Init list
  89                 this.allHeadquarters = new LinkedList<>();
  90         }
  91
  92         /**
  93          * Observes events being fired when a branch office has been added.
  94          * <p>
  95          * @param event Event being fired
  96          * <p>
  97          * @throws NullPointerException If the parameter or it's carried instance is
  98          * null
  99          * @throws IllegalArgumentException If the branchId is zero or lower
 100          */
 101         public void afterHeadquarterAddedEvent (@Observes final ObservableHeadquarterAddedEvent event) {
 102                 // Validate parameter
 103                 if (null == event) {
 104                         // Throw NPE
 105                         throw new NullPointerException("event is null"); //NOI18N
 106                 } else if (event.getHeadquarter() == null) {
 107                         // Throw NPE again
 108                         throw new NullPointerException("event.headquarter is null"); //NOI18N
 109                 } else if (event.getHeadquarter().getHeadquarterId() == null) {
 110                         // Throw it again
 111                         throw new NullPointerException("event.headquarter.branchId is null"); //NOI18N
 112                 } else if (event.getHeadquarter().getHeadquarterId() < 1) {
 113                         // Throw IAE
 114                         throw new IllegalArgumentException(MessageFormat.format("event.headquarter.branchId={0} is not valid", event.getHeadquarter().getHeadquarterId())); //NOI18N
 115                 }
 116
 117                 // Add instance to cache
 118                 this.headquarterCache.put(event.getHeadquarter().getHeadquarterId(), event.getHeadquarter());
 119                 this.getAllHeadquarters().add(event.getHeadquarter());
 120         }
 121
 122         @Override
 123         public Headquarter findHeadquarterById (final Long headquarterId) throws HeadquarterNotFoundException {
 124                 // Validate parameter
 125                 if (null == headquarterId) {
 126                         // Throw NPE
 127                         throw new NullPointerException("headquarterId is null"); //NOI18N
 128                 } else if (headquarterId < 1) {
 129                         // Throw IAE
 130                         throw new IllegalArgumentException(MessageFormat.format("headquarterId={0} is invalid", headquarterId)); //NOI18N
 131                 } else if (!this.headquarterCache.containsKey(headquarterId)) {
 132                         // Not found
 133                         throw new HeadquarterNotFoundException(headquarterId);
 134                 }
 135
 136                 // Get it from cache
 137                 final Headquarter headquarter = this.headquarterCache.get(headquarterId);
 138
 139                 // Return it
 140                 return headquarter;
 141         }
 142
 143         @Override
 144         @SuppressWarnings ("ReturnOfCollectionOrArrayField")
 145         public List<Headquarter> getAllHeadquarters () {
 146                 return this.allHeadquarters;
 147         }
 148
 149         /**
 150          * Getter for a list of filtered headquarter
 151          * <p>
 152          * @return Filtered headquarter
 153          */
 154         @SuppressWarnings ("ReturnOfCollectionOrArrayField")
 155         public List<Headquarter> getFilteredHeadquarters () {
 156                 return this.filteredHeadquarters;
 157         }
 158
 159         /**
 160          * Setter for a list of filtered headquarter
 161          * <p>
 162          * @param filteredHeadquarters Filtered headquarter
 163          */
 164         @SuppressWarnings ("AssignmentToCollectionOrArrayFieldFromParameter")
 165         public void setFilteredHeadquarters (final List<Headquarter> filteredHeadquarters) {
 166                 this.filteredHeadquarters = filteredHeadquarters;
 167         }
 168
 169         /**
 170          * Getter for selected headquarter
 171          * <p>
 172          * @return Selected headquarter
 173          */
 174         public Headquarter getSelectedHeadquarter () {
 175                 return this.selectedHeadquarter;
 176         }
 177
 178         /**
 179          * Setter for selected headquarter
 180          * <p>
 181          * @param selectedHeadquarter Selected headquarter
 182          */
 183         public void setSelectedHeadquarter (final Headquarter selectedHeadquarter) {
 184                 this.selectedHeadquarter = selectedHeadquarter;
 185         }
 186
 187         /**
 188          * Initializer method
 189          */
 190         @PostConstruct
 191         public void initializeList () {
 192                 // Is cache there?
 193                 if (!this.headquarterCache.iterator().hasNext()) {
 194                         // Add all
 195                         for (final Headquarter headquarter : this.headquarterBean.fetchAllHeadquarters()) {
 196                                 // Add it to cache
 197                                 this.headquarterCache.put(headquarter.getHeadquarterId(), headquarter);
 198                         }
 199                 }
 200
 201                 // Is the list empty, but filled cache?
 202                 if (this.getAllHeadquarters().isEmpty() && this.headquarterCache.iterator().hasNext()) {
 203                         // Build up list
 204                         for (final Cache.Entry<Long, Headquarter> currentEntry : this.headquarterCache) {
 205                                 // Add to list
 206                                 this.getAllHeadquarters().add(currentEntry.getValue());
 207                         }
 208
 209                         // Sort list
 210                         this.getAllHeadquarters().sort(new Comparator<Headquarter>() {
 211                                 @Override
 212                                 public int compare (final Headquarter headquarter1, final Headquarter headquarter2) {
 213                                         return headquarter1.getHeadquarterId() > headquarter2.getHeadquarterId() ? 1 : headquarter1.getHeadquarterId() < headquarter2.getHeadquarterId() ? -1 : 0;
 214                                 }
 215                         });
 216                 }
 217         }
 218
 219         @Override
 220         public Boolean isCompanyNameUsed (final String companyName) {
 221                 // Validate parameter
 222                 if (null == companyName) {
 223                         // Throw NPE
 224                         throw new NullPointerException("companyName is null"); //NOI18N
 225                 } else if (companyName.isEmpty()) {
 226                         // Throw IAE
 227                         throw new IllegalArgumentException("companyName is empty"); //NOI18N
 228                 }
 229
 230                 // Default is not found
 231                 boolean isFound = false;
 232
 233                 // Check all entries
 234                 for (final Headquarter headquarter : this.getAllHeadquarters()) {
 235                         // Is same company name?
 236                         if (Objects.equals(headquarter.getHeadquarterCompanyName(), companyName)) {
 237                                 // Found it
 238                                 isFound = true;
 239                                 break;
 240                         }
 241                 }
 242
 243                 // Return flag
 244                 return isFound;
 245         }
 246
 247         @Override
 248         public Boolean isEmailAddressRegistered (final String emailAddress) {
 249                 // Validate parameter
 250                 if (null == emailAddress) {
 251                         // Throw NPE
 252                         throw new NullPointerException("emailAddress is null"); //NOI18N
 253                 } else if (emailAddress.isEmpty()) {
 254                         // Throw IAE
 255                         throw new IllegalArgumentException("emailAddress is empty"); //NOI18N
 256                 }
 257
 258                 // Default is not found
 259                 boolean isFound = false;
 260
 261                 // Check all entries
 262                 for (final Headquarter headquarter : this.getAllHeadquarters()) {
 263                         // Is email address used?
 264                         if (Objects.equals(headquarter.getHeadquarterEmailAddress(), emailAddress)) {
 265                                 // Found it
 266                                 isFound = true;
 267                                 break;
 268                         }
 269                 }
 270
 271                 // Return flag
 272                 return isFound;
 273         }
 274
 275         /**
 276          * Checks whether the given headquarter' address is already found in local
 277          * cache. Please note that this method fully relies on the cache, so you
 278          * must always fire proper events that add/update/delete entries in cache.
 279          * <p>
 280          * @param headquarter Headquarter to check it's address
 281          * <p>
 282          * @return Whether the address has been found
 283          */
 284         @Override
 285         public boolean isHeadquarterCreatedByRequiredData (final Headquarter headquarter) {
 286                 // Default is not found
 287                 boolean isFound = false;
 288
 289                 // Now check each entry
 290                 for (final Headquarter hq : this.getAllHeadquarters()) {
 291                         // Is same address?
 292                         if (Headquarters.isSameAddress(hq, headquarter)) {
 293                                 // Found one
 294                                 isFound = true;
 295                                 break;
 296                         }
 297                 }
 298
 299                 // Return flag
 300                 return isFound;
 301         }
 302
 303 }