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Homework dirkriehle#12: TypeObjects
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Peter Koch committed Jan 15, 2018
1 parent b7e37fd commit 5393928
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250 changes: 36 additions & 214 deletions src/main/java/org/wahlzeit/model/Kleinbaer.java
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Original file line number Diff line number Diff line change
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/*
* Classname: Kleinbaer
* Copyright (c) 2006-2009 by Dirk Riehle, http://dirkriehle.com
*
* Version: 1.0 [created 5th ADAP-homework]
* This file is part of the Wahlzeit photo rating application.
*
* Date: 11.11.2017
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/

package org.wahlzeit.model;

import java.math.BigInteger;

/**
* Kleinbaer-Class represents a specific Kleinbaer
*/
public class Kleinbaer {

/**
* the scientific Declaration of Kleinbaer
*/
private final String SCIENTIFIC_NAME = "Procyonidae";

/**
* the genus of a Kleinbaer
*/
private kleinbaerengenus genus;


/**
* Accepted genera of Kleinbaer, mainly extinct genera are ignored
*/
public enum kleinbaerengenus {
MAKIBAER, WICKELBAER, KATZENFRETT, WASCHBAER, NASENBAER, BERNASENBAER
}

/**
* The number of teeth a typical Kleinbaer-Genera has
* Fun Fact: Kleinbaer have 40 teeth, Wickelbaeren have one less per row(total of 36)
*/
private int numberOfTeeth;
protected KleinbaerGenus genus = null;

/**
* Max weight of the Kleinbaer-Genus in gram
* counter to give out unique Id's
*/
private int maxWeight;
private static Integer idCounter = new Integer(0);

/**
* Max tail length of the Kleinbaer-Genus in cm
* unique id of a Kleinbaer-Class
*/
private int maxTailLength;
private Integer id;

/**
* max length of the Kleinbaer-Genus without counting the tail in cm
*/
private int maxSnoutVentLength;

/**
* @methodtype initialize
* initialized all the Kleinbaerfacts and the genus of the Kleinbaer
* @param genus for which the Kleinbaerfacts are set
*/
public Kleinbaer(kleinbaerengenus genus){
public Kleinbaer(KleinbaerGenus genus){
assertGenusNotNull(genus);

updateKleinbaerfacts(genus);
}

/**
* @methodtyp get
* @return the scientific family declaration for Kleinbaren
*/
public String getSCIENTIFIC_NAME() {
return SCIENTIFIC_NAME;
setId();
}

/**
* @methodtype get
* @return genus of the Kleinbaer
* @return ID of the Kleinbaer-Class
*/
public kleinbaerengenus getGenus(){
assertGenusNotNull(genus);

return genus;
public Integer getId(){
return id;
}

/**
* @methodtype set
* @param newGenus Kleinbaer-Genus which is to be set
* sets the id for a Kleinbaer-Class
*/
public void setGenus(kleinbaerengenus newGenus){
assertGenusNotNull(genus);

updateKleinbaerfacts(newGenus);
genus = newGenus;
private synchronized void setId(){
id = idCounter++;
}

/**
* @methodtype get
* @return the number of teeth the Kleinbaer has
*/
public int getNumberOfTeeth(){
return numberOfTeeth;
}

/**
* @methodtype set
* @param genus for which the typical number of teeth get set
*/
private void setNumberOfTeeth(kleinbaerengenus genus){
assertGenusNotNull(genus);

if(genus == kleinbaerengenus.WICKELBAER){
this.numberOfTeeth = 36;
return;
}
this.numberOfTeeth = 40;
return;
}

/**
* @methodtype set
* @param numberOfTeeth sets a specific amount of Teeth for a Kleinbaer
*/
public void setNumberOfTeeth(int numberOfTeeth){
if(numberOfTeeth < 0){
throw new IllegalArgumentException();
}
this.numberOfTeeth = numberOfTeeth;
}

/**
* @methodtype get
* @return maxWeight of the Kleinbaer in gramms
*/
public int getMaxWeight(){
return maxWeight;
}

/**
* @methodtype get
* @return maxTailLength of the Kleinbaer in cm
*/
public int getMaxTailLength(){
return maxTailLength;
}

/**
* @methodtype get
* @return maxSnoutVentLength of the Kleinbaer in cm
*/
public int getMaxSnoutVentLength(){
return maxSnoutVentLength;
}

/**
* @methodtype set
* @param genus sets the maxWeight for this genus in gramms
*/
private void setMaxWeight(kleinbaerengenus genus){
assertGenusNotNull(genus);

switch (genus){
case MAKIBAER:
this.maxWeight = 1_500;
break;
case NASENBAER:
this.maxWeight = 6_000;
break;
case WASCHBAER:
this.maxWeight = 12_000;
break;
case WICKELBAER:
this.maxWeight = 4_600;
break;
case KATZENFRETT:
this.maxWeight = 1_300;
break;
case BERNASENBAER:
this.maxWeight = 1_500;
break;
default:
this.maxWeight = 12_000;
}
}

/**
* @methodtype set
* @param genus sets the max tail length for this genus in cm
*/
private void setMaxTailLength(kleinbaerengenus genus){
assertGenusNotNull(genus);

switch (genus){
case MAKIBAER:
this.maxTailLength = 48;
break;
case NASENBAER:
this.maxTailLength = 68;
break;
case WASCHBAER:
this.maxTailLength = 40;
break;
case WICKELBAER:
this.maxTailLength = 55;
break;
case KATZENFRETT:
this.maxTailLength = 44;
break;
case BERNASENBAER:
this.maxTailLength = 24;
break;
default:
this.maxWeight = 68;
}
}

/**
* @methodtype set
* @param genus sets the max length(without the tail) for this genus in cm
* @return genus of the Kleinbaer
*/
private void setMaxSnoutVentLength(kleinbaerengenus genus){
public KleinbaerGenus getGenus(){
assertGenusNotNull(genus);

switch (genus){
case MAKIBAER:
this.maxSnoutVentLength = 48;
break;
case NASENBAER:
this.maxSnoutVentLength = 70;
break;
case WASCHBAER:
this.maxSnoutVentLength = 60;
break;
case WICKELBAER:
this.maxSnoutVentLength = 60;
break;
case KATZENFRETT:
this.maxSnoutVentLength = 42;
break;
case BERNASENBAER:
this.maxSnoutVentLength = 39;
break;
default:
this.maxWeight = 70;
}
return genus;
}

/**
* @methodtyp set
* Method sets all Facts for the new genus
* @param newGenus the genus for which the global variables are updated
*/
private void updateKleinbaerfacts(kleinbaerengenus newGenus){
assertGenusNotNull(newGenus);

setNumberOfTeeth(newGenus);
setMaxWeight(newGenus);
setMaxSnoutVentLength(newGenus);
setMaxTailLength(newGenus);
}
/**
* ------------------------ Assertions ------------------------
*/

/**
* Asserts that the given genus is not null
* @methodtype assertion
* @throws KleinbaerException if given kleinbaerengenus is null
* @throws KleinbaerException if given KleinbaerGenus-Class is null
*/
private void assertGenusNotNull(kleinbaerengenus genus){
private void assertGenusNotNull(KleinbaerGenus genus){
if(genus == null){
throw new KleinbaerException("kleinbaerengenus mustn't be null");
throw new KleinbaerException("KleinbaerGenus mustn't be null");
}
}

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