src/java/org/mxchange/jjobs/model/skill/JobsAdminSkillSessionBean.java

   1 /*
   2  * Copyright (C) 2017 - 2024 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.jjobs.model.skill;
  18
  19 import java.text.MessageFormat;
  20 import java.util.Date;
  21 import java.util.List;
  22 import javax.ejb.EJB;
  23 import javax.ejb.Stateless;
  24 import org.mxchange.jjobs.enterprise.BaseJobsEnterpriseBean;
  25 import org.mxchange.jjobs.exceptions.SkillAlreadyAddedException;
  26 import org.mxchange.jjobs.model.exceptions.SkillNotFoundException;
  27 import org.mxchange.jjobs.model.utils.SkillUtils;
  28
  29 /**
  30  * A stateless session bean for administrative skillpurposes
  31  * <p>
  32  * @author Roland Häder<roland@mxchange.org>
  33  */
  34 @Stateless (name = "adminSkill", description = "An administrative statless bean for handling department data (all)")
  35 public class JobsAdminSkillSessionBean extends BaseJobsEnterpriseBean implements AdminSkillSessionBeanRemote {
  36
  37         /**
  38          * Serial number
  39          */
  40         private static final long serialVersionUID = 58_467_386_571_705L;
  41
  42         /**
  43          * General department bean
  44          */
  45         @EJB (lookup = "java:global/jjobs-ejb/skill!org.mxchange.jjobs.model.skill.SkillSessionBeanRemote")
  46         private SkillSessionBeanRemote skillBean;
  47
  48         /**
  49          * Default constructor
  50          */
  51         public JobsAdminSkillSessionBean () {
  52                 // Call super constructor
  53                 super();
  54         }
  55
  56         @Override
  57         public Skillable addSkill (final Skillable skill) throws SkillAlreadyAddedException {
  58                 // Trace message
  59                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.addSkill(): skill={1} - CALLED!", this.getClass().getSimpleName(), skill)); //NOI18N
  60
  61                 // Validate parameter
  62                 if (null == skill) {
  63                         // Throw NPE
  64                         throw new NullPointerException("department is null"); //NOI18N
  65                 } else if (skill.getSkillId() instanceof Long) {
  66                         // Should not happen
  67                         throw new IllegalArgumentException("skill.skillId should not be set."); //NOI18N
  68                 } else if (skill.getSkillName() == null) {
  69                         // Throw NPE
  70                         throw new NullPointerException("skill.skillName is empty"); //NOI18N
  71                 } else if (skill.getSkillName().isEmpty()) {
  72                         // Throw NPE
  73                         throw new NullPointerException("skill.skillName is null"); //NOI18N
  74                 } else if (skill.getSkillStatus() == null) {
  75                         // Throw NPE
  76                         throw new NullPointerException("skill.skillStatus null"); //NOI18N
  77                 } else if (this.isSkillFound(skill)) {
  78                         // Already added, abort here
  79                         throw new SkillAlreadyAddedException(skill);
  80                 }
  81
  82                 // Set created timestamp
  83                 skill.setSkillEntryCreated(new Date());
  84
  85                 // Persist it
  86                 this.getEntityManager().persist(skill);
  87
  88                 // Trace message
  89                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.addSkill(): skill.skillId={1} - EXIT!", this.getClass().getSimpleName(), skill.getSkillId())); //NOI18N
  90
  91                 // Return updated instance
  92                 return skill;
  93         }
  94
  95         @Override
  96         public Skillable updateSkill (final Skillable skill) throws SkillNotFoundException {
  97                 // Trace message
  98                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.updateSkill(): skill={1} - CALLED!", this.getClass().getSimpleName(), skill)); //NOI18N
  99
 100                 // Validate parameter
 101                 if (null == skill) {
 102                         // Throw NPE
 103                         throw new NullPointerException("skill is null"); //NOI18N
 104                 } else if (skill.getSkillId() == null) {
 105                         // Throw NPE again
 106                         throw new NullPointerException("skill.skillId is null"); //NOI18N
 107                 } else if (skill.getSkillId() < 1) {
 108                         // Throw IAE
 109                         throw new IllegalArgumentException(MessageFormat.format("skill.skillId={0} is not valid", skill.getSkillId())); //NOI18N
 110                 } else if (skill.getSkillName() == null) {
 111                         // Throw NPE
 112                         throw new NullPointerException("skill.skillName is empty"); //NOI18N
 113                 } else if (skill.getSkillName().isEmpty()) {
 114                         // Throw NPE
 115                         throw new NullPointerException("skill.skillName is null"); //NOI18N
 116                 } else if (skill.getSkillStatus() == null) {
 117                         // Throw NPE
 118                         throw new NullPointerException("skill.skillStatus null"); //NOI18N
 119                 } else if (!this.isSkillFound(skill)) {
 120                         // Already added, abort here
 121                         throw new SkillNotFoundException(skill);
 122                 }
 123
 124                 // Merge data
 125                 final Skillable updatedSkill = this.mergeSkillData(skill);
 126
 127                 // Trace message
 128                 this.getLoggerBeanLocal().logTrace(MessageFormat.format("{0}.updatedSkill(): updatedSkill={1} - EXIT!", this.getClass().getSimpleName(), updatedSkill));
 129
 130                 // Return updated instance
 131                 return updatedSkill;
 132         }
 133
 134         /**
 135          * Checks if given skill's name is already persisted. The whole (persisted)
 136          * list is being loaded and each name is being matched against the given
 137          * department's address.
 138          * <p>
 139          * @param skillable Skill being checked
 140          * <p>
 141          * @return Whether it has been found
 142          */
 143         private boolean isSkillFound (final Skillable skillable) {
 144                 // Get whole list
 145                 final List<Skillable> skills = this.skillBean.fetchAllSkills();
 146
 147                 // Default is not found
 148                 boolean isFound = false;
 149
 150                 // Check all single addresses
 151                 for (final Skillable skill : skills) {
 152                         // Is the same address found?
 153                         if (SkillUtils.isSameSkill(skill, skillable)) {
 154                                 // Found one
 155                                 isFound = true;
 156                                 break;
 157                         }
 158                 }
 159
 160                 // Return flag
 161                 return isFound;
 162         }
 163
 164 }