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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;
  18
  19 import fish.payara.cdi.jsr107.impl.NamedCache;
  20 import java.text.MessageFormat;
  21 import java.util.Comparator;
  22 import java.util.Iterator;
  23 import java.util.LinkedList;
  24 import java.util.List;
  25 import java.util.Objects;
  26 import javax.annotation.PostConstruct;
  27 import javax.cache.Cache;
  28 import javax.ejb.EJB;
  29 import javax.enterprise.context.RequestScoped;
  30 import javax.enterprise.event.Observes;
  31 import javax.inject.Inject;
  32 import javax.inject.Named;
  33 import org.mxchange.jcontactsbusiness.events.headquarter.added.ObservableHeadquarterAddedEvent;
  34 import org.mxchange.jcontactsbusiness.exceptions.headquarter.HeadquarterNotFoundException;
  35 import org.mxchange.jcontactsbusiness.model.headquarter.Headquarter;
  36 import org.mxchange.jcontactsbusiness.model.headquarter.HeadquarterSessionBeanRemote;
  37 import org.mxchange.jfinancials.beans.BaseFinancialsBean;
  38
  39 /**
  40  * A general bean for headquarter
  41  * <p>
  42  * @author Roland Häder<roland@mxchange.org>
  43  */
  44 @Named ("headquarterController")
  45 @RequestScoped
  46 public class FinancialsHeadquarterWebRequestBean extends BaseFinancialsBean implements FinancialsHeadquarterWebRequestController {
  47
  48         /**
  49          * Serial number
  50          */
  51         private static final long serialVersionUID = 5_028_697_360_465L;
  52
  53         /**
  54          * A list of all headquarter
  55          */
  56         private final List<Headquarter> allHeadquarter;
  57
  58         /**
  59          * A list of filtered headquarter
  60          */
  61         private List<Headquarter> filteredHeadquarter;
  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 Cache<Long, Headquarter> headquarterCache;
  75
  76         /**
  77          * Default constructor
  78          */
  79         public FinancialsHeadquarterWebRequestBean () {
  80                 // Call super constructor
  81                 super();
  82
  83                 // Init list
  84                 this.allHeadquarter = new LinkedList<>();
  85         }
  86
  87         /**
  88          * Observes events being fired when a branch office has been added.
  89          * <p>
  90          * @param event Event being fired
  91          * <p>
  92          * @throws NullPointerException If the parameter or it's carried instance is
  93          * null
  94          * @throws IllegalArgumentException If the branchId is zero or lower
  95          */
  96         public void afterHeadquarterAddedEvent (@Observes final ObservableHeadquarterAddedEvent event) {
  97                 // Validate parameter
  98                 if (null == event) {
  99                         // Throw NPE
 100                         throw new NullPointerException("event is null"); //NOI18N
 101                 } else if (event.getHeadquarter() == null) {
 102                         // Throw NPE again
 103                         throw new NullPointerException("event.headquarter is null"); //NOI18N
 104                 } else if (event.getHeadquarter().getHeadquarterId() == null) {
 105                         // Throw it again
 106                         throw new NullPointerException("event.headquarter.branchId is null"); //NOI18N
 107                 } else if (event.getHeadquarter().getHeadquarterId() < 1) {
 108                         // Throw IAE
 109                         throw new IllegalArgumentException(MessageFormat.format("event.headquarter.branchId={0} is not valid", event.getHeadquarter().getHeadquarterId())); //NOI18N
 110                 }
 111
 112                 // Add instance to cache
 113                 this.headquarterCache.put(event.getHeadquarter().getHeadquarterId(), event.getHeadquarter());
 114                 this.allHeadquarter.add(event.getHeadquarter());
 115         }
 116
 117         @Override
 118         @SuppressWarnings ("ReturnOfCollectionOrArrayField")
 119         public List<Headquarter> allHeadquarter () {
 120                 return this.allHeadquarter;
 121         }
 122
 123         @Override
 124         public Headquarter findHeadquarterById (final Long headquarterId) throws HeadquarterNotFoundException {
 125                 // Validate parameter
 126                 if (null == headquarterId) {
 127                         // Throw NPE
 128                         throw new NullPointerException("headquarterId is null"); //NOI18N
 129                 } else if (headquarterId < 1) {
 130                         // Throw IAE
 131                         throw new IllegalArgumentException(MessageFormat.format("headquarterId={0} is invalid", headquarterId)); //NOI18N
 132                 } else if (!this.headquarterCache.containsKey(headquarterId)) {
 133                         // Not found
 134                         throw new HeadquarterNotFoundException(headquarterId);
 135                 }
 136
 137                 // Get it from cache
 138                 final Headquarter headquarter = this.headquarterCache.get(headquarterId);
 139
 140                 // Return it
 141                 return headquarter;
 142         }
 143
 144         /**
 145          * Getter for a list of filtered headquarter
 146          * <p>
 147          * @return Filtered headquarter
 148          */
 149         @SuppressWarnings ("ReturnOfCollectionOrArrayField")
 150         public List<Headquarter> getFilteredHeadquarter () {
 151                 return this.filteredHeadquarter;
 152         }
 153
 154         /**
 155          * Setter for a list of filtered headquarter
 156          * <p>
 157          * @param filteredHeadquarter Filtered headquarter
 158          */
 159         @SuppressWarnings ("AssignmentToCollectionOrArrayFieldFromParameter")
 160         public void setFilteredHeadquarter (final List<Headquarter> filteredHeadquarter) {
 161                 this.filteredHeadquarter = filteredHeadquarter;
 162         }
 163
 164         /**
 165          * Initializer method
 166          */
 167         @PostConstruct
 168         public void initializeList () {
 169                 // Is cache there?
 170                 if (!this.headquarterCache.iterator().hasNext()) {
 171                         // Get whole list from EJB
 172                         final List<Headquarter> Headquarter = this.headquarterBean.allHeadquarters();
 173
 174                         // Add all
 175                         for (final Headquarter headquarter : Headquarter) {
 176                                 // Add it to cache
 177                                 this.headquarterCache.put(headquarter.getHeadquarterId(), headquarter);
 178                         }
 179                 }
 180
 181                 // Is the list empty, but filled cache?
 182                 if (this.allHeadquarter.isEmpty() && this.headquarterCache.iterator().hasNext()) {
 183                         // Get iterator
 184                         final Iterator<Cache.Entry<Long, Headquarter>> iterator = this.headquarterCache.iterator();
 185
 186                         // Build up list
 187                         while (iterator.hasNext()) {
 188                                 // GEt next element
 189                                 final Cache.Entry<Long, Headquarter> next = iterator.next();
 190
 191                                 // Add to list
 192                                 this.allHeadquarter.add(next.getValue());
 193                         }
 194
 195                         // Sort list
 196                         this.allHeadquarter.sort(new Comparator<Headquarter>() {
 197                                 @Override
 198                                 public int compare (final Headquarter o1, final Headquarter o2) {
 199                                         return o1.getHeadquarterId() > o2.getHeadquarterId() ? 1 : o1.getHeadquarterId() < o2.getHeadquarterId() ? -1 : 0;
 200                                 }
 201                         });
 202                 }
 203         }
 204
 205         @Override
 206         public Boolean isCompanyNameUsed (final String companyName) {
 207                 // Validate parameter
 208                 if (null == companyName) {
 209                         // Throw NPE
 210                         throw new NullPointerException("companyName is null"); //NOI18N
 211                 } else if (companyName.isEmpty()) {
 212                         // Throw IAE
 213                         throw new IllegalArgumentException("companyName is empty"); //NOI18N
 214                 }
 215
 216                 // Default is not found
 217                 boolean isFound = false;
 218
 219                 // Check all entries
 220                 for (final Headquarter headquarter : this.allHeadquarter()) {
 221                         // Is same company name?
 222                         if (Objects.equals(headquarter.getHeadquarterCompanyName(), companyName)) {
 223                                 // Found it
 224                                 isFound = true;
 225                                 break;
 226                         }
 227                 }
 228
 229                 // Return flag
 230                 return isFound;
 231         }
 232
 233         @Override
 234         public Boolean isEmailAddressRegistered (final String emailAddress) {
 235                 // Validate parameter
 236                 if (null == emailAddress) {
 237                         // Throw NPE
 238                         throw new NullPointerException("emailAddress is null"); //NOI18N
 239                 } else if (emailAddress.isEmpty()) {
 240                         // Throw IAE
 241                         throw new IllegalArgumentException("emailAddress is empty"); //NOI18N
 242                 }
 243
 244                 // Default is not found
 245                 boolean isFound = false;
 246
 247                 // Check all entries
 248                 for (final Headquarter headquarter : this.allHeadquarter()) {
 249                         // Is email address used?
 250                         if (Objects.equals(headquarter.getHeadquarterEmailAddress(), emailAddress)) {
 251                                 // Found it
 252                                 isFound = true;
 253                                 break;
 254                         }
 255                 }
 256
 257                 // Return flag
 258                 return isFound;
 259         }
 260
 261 }