Implement developer classes and criteria for product filtering

src/main/java/net/itsthesky/projetbut2/Main.java

@@ -1,5 +1,5 @@
-import net.itsthesky.projetbut2.qualdev.FindInstrumentTester;
+import net.itsthesky.projetbut2.dip.DIPClient;
 
 void main() {
-    FindInstrumentTester.main(new String[]{});
+    DIPClient.main();
 }

src/main/java/net/itsthesky/projetbut2/dip/BackEndDeveloper.java

@@ -0,0 +1,9 @@
+package net.itsthesky.projetbut2.dip;
+
+public class BackEndDeveloper implements Developer {
+
+    public void develop() {
+        IO.println("I write Java code !");
+    }
+
+}

src/main/java/net/itsthesky/projetbut2/dip/DIPClient.java

@@ -0,0 +1,10 @@
+package net.itsthesky.projetbut2.dip;
+
+public final class DIPClient {
+
+    public static void main() {
+        Project project = new Project();
+        project.implement();
+    }
+
+}

src/main/java/net/itsthesky/projetbut2/dip/Developer.java

@@ -0,0 +1,7 @@
+package net.itsthesky.projetbut2.dip;
+
+public interface Developer {
+
+    void develop();
+
+}

src/main/java/net/itsthesky/projetbut2/dip/FrontEndDeveloper.java

@@ -0,0 +1,9 @@
+package net.itsthesky.projetbut2.dip;
+
+public class FrontEndDeveloper  implements Developer{
+    @Override
+    public void develop() {
+        IO.println("I write Javascript code !");
+    }
+
+}

src/main/java/net/itsthesky/projetbut2/dip/Project.java

@@ -0,0 +1,21 @@
+package net.itsthesky.projetbut2.dip;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Project {
+
+    private final List<Developer> developers = new ArrayList<>();
+
+    public Project() {
+        developers.add(new BackEndDeveloper());
+        developers.add(new FrontEndDeveloper());
+    }
+
+    public void implement() {
+        for (var developer : developers) {
+            developer.develop();
+        }
+    }
+
+}

src/main/java/net/itsthesky/projetbut2/ocp/ColorCriteria.java

@@ -0,0 +1,17 @@
+package net.itsthesky.projetbut2.ocp;
+
+import net.itsthesky.projetbut2.ocp.base.Color;
+import net.itsthesky.projetbut2.ocp.base.Product;
+
+public class ColorCriteria implements Criteria<Product> {
+
+    private final Color color;
+    public ColorCriteria(Color color) {
+        this.color = color;
+    }
+
+    @Override
+    public boolean isSatisfied(Product product) {
+        return product.color == color;
+    }
+}

src/main/java/net/itsthesky/projetbut2/ocp/Criteria.java

@@ -0,0 +1,7 @@
+package net.itsthesky.projetbut2.ocp;
+
+public interface Criteria<Product> {
+
+    boolean isSatisfied(Product product);
+
+}

src/main/java/net/itsthesky/projetbut2/ocp/MultipleCriteria.java

@@ -0,0 +1,18 @@
+package net.itsthesky.projetbut2.ocp;
+
+import net.itsthesky.projetbut2.ocp.base.Product;
+
+import java.util.stream.Stream;
+
+public class MultipleCriteria implements Criteria<Product> {
+
+    private final Criteria<Product>[] criteria;
+    public MultipleCriteria(Criteria<Product>... criteria) {
+        this.criteria = criteria;
+    }
+
+    @Override
+    public boolean isSatisfied(Product product) {
+        return Stream.of(criteria).allMatch(c -> c.isSatisfied(product));
+    }
+}

src/main/java/net/itsthesky/projetbut2/ocp/NameCriteria.java

@@ -0,0 +1,16 @@
+package net.itsthesky.projetbut2.ocp;
+
+import net.itsthesky.projetbut2.ocp.base.Product;
+
+public class NameCriteria implements Criteria<Product> {
+
+    private final String name;
+    public NameCriteria(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public boolean isSatisfied(Product product) {
+        return product.name.contains(name);
+    }
+}

src/main/java/net/itsthesky/projetbut2/ocp/OCPClient.java

@@ -0,0 +1,24 @@
+package net.itsthesky.projetbut2.ocp;
+
+import net.itsthesky.projetbut2.ocp.base.Color;
+import net.itsthesky.projetbut2.ocp.base.Product;
+import net.itsthesky.projetbut2.ocp.base.Size;
+
+import java.util.List;
+
+public final class OCPClient {
+
+    public static void main() {
+        Product apple = new Product("Apple", Color.GREEN, Size.SMALL);
+        Product tree = new Product("Tree", Color.GREEN, Size.LARGE);
+        Product house = new Product("House", Color.BLUE, Size.LARGE);
+
+        List<Product> products = List.of(apple, tree, house);
+
+        ProductFilter filter = new ProductFilter();
+        System.out.println("Green products : ");
+        filter.filter(products, new MultipleCriteria(new ColorCriteria(Color.GREEN), new SizeCriteria(Size.SMALL)))
+                .forEach(product -> System.out.println(" - " + product.name + " is green and small"));
+    }
+
+}

src/main/java/net/itsthesky/projetbut2/ocp/PriceRangeCriteria.java

@@ -0,0 +1,18 @@
+package net.itsthesky.projetbut2.ocp;
+
+import net.itsthesky.projetbut2.ocp.base.Product;
+
+public class PriceRangeCriteria implements Criteria<Product> {
+
+    private final double minPrice;
+    private final double maxPrice;
+    public PriceRangeCriteria(double minPrice, double maxPrice) {
+        this.minPrice = minPrice;
+        this.maxPrice = maxPrice;
+    }
+
+    @Override
+    public boolean isSatisfied(Product product) {
+        return product.price >= minPrice && product.price <= maxPrice;
+    }
+}

src/main/java/net/itsthesky/projetbut2/ocp/ProductFilter.java

@@ -0,0 +1,14 @@
+package net.itsthesky.projetbut2.ocp;
+
+import net.itsthesky.projetbut2.ocp.base.Product;
+
+import java.util.List;
+import java.util.stream.Stream;
+
+public class ProductFilter {
+
+    public Stream<Product> filter(List<Product> products, Criteria<Product> criteria) {
+        return products.stream().filter(criteria::isSatisfied);
+    }
+
+}

src/main/java/net/itsthesky/projetbut2/ocp/SizeCriteria.java

@@ -0,0 +1,17 @@
+package net.itsthesky.projetbut2.ocp;
+
+import net.itsthesky.projetbut2.ocp.base.Product;
+import net.itsthesky.projetbut2.ocp.base.Size;
+
+public class SizeCriteria implements Criteria<Product> {
+
+    private final Size size;
+    public SizeCriteria(Size size) {
+        this.size = size;
+    }
+
+    @Override
+    public boolean isSatisfied(Product product) {
+        return product.size == size;
+    }
+}

src/main/java/net/itsthesky/projetbut2/ocp/base/Color.java

@@ -0,0 +1,5 @@
+package net.itsthesky.projetbut2.ocp.base;
+
+public enum Color {
+    RED, GREEN, BLUE
+}

src/main/java/net/itsthesky/projetbut2/ocp/base/Product.java

@@ -0,0 +1,20 @@
+package net.itsthesky.projetbut2.ocp.base;
+
+public class Product {
+
+    public String name;
+    public Color color;
+    public Size size;
+    public double price;
+
+    public Product(String name, Color color, Size size, double price) {
+        this.name = name;
+        this.color = color;
+        this.size = size;
+        this.price = price;
+    }
+
+    public Product(String name, Color color, Size size) {
+        this(name, color, size, 0);
+    }
+}

src/main/java/net/itsthesky/projetbut2/ocp/base/Size.java

@@ -0,0 +1,5 @@
+package net.itsthesky.projetbut2.ocp.base;
+
+public enum Size {
+    SMALL, MEDIUM, LARGE, HUGE
+}

src/main/java/net/itsthesky/projetbut2/qualdev/FindInstrumentTester.java

@@ -1,115 +0,0 @@
-package net.itsthesky.projetbut2.qualdev;
-
-import net.itsthesky.projetbut2.qualdev.model.Specification;
-import net.itsthesky.projetbut2.qualdev.model.Instrument;
-import net.itsthesky.projetbut2.qualdev.model.InstrumentSpec;
-import net.itsthesky.projetbut2.qualdev.model.specs.*;
-
-import java.util.Arrays;
-import java.util.List;
-
-public class FindInstrumentTester {
-
-    public static void main(String[] args) {
-        // Set up Rick's inventory
-        Inventory inventory = new Inventory();
-        initializeInventory(inventory);
-
-
-        InstrumentSpec whatBryanLikes = new InstrumentSpec(Arrays.asList(
-                Specification.INSTRUMENT_TYPE, InstrumentType.MANDOLIN,
-                Specification.STYLE, Style.F));
-
-        whatBryanLikes = new InstrumentSpec(Arrays.asList(
-                Specification.INSTRUMENT_TYPE, InstrumentType.BANJO));
-
-        List matchingInstruments = inventory.search(whatBryanLikes);
-        if (!matchingInstruments.isEmpty())
-            System.out.println("Here's what we have for you:\n" + matchingInstruments);
-        else
-            System.out.println("Sorry, we have nothing for you.");
-    }
-
-
-    public static void initializeInventory(Inventory inventory) {
-        inventory.addInstrument(new Instrument("82765501", 1890.95,
-                new InstrumentSpec(Arrays.asList(
-                        Specification.INSTRUMENT_TYPE, InstrumentType.GUITAR,
-                        Specification.TYPE, Type.ELECTRIC,
-                        Specification.MODEL, "SG '61 Reissue",
-                        Specification.BACKWOOD, Wood.MAHOGANY,
-                        Specification.TOPWOOD, Wood.MAHOGANY))));
-
-        inventory.addInstrument(new Instrument("9019920", 5495.99,
-                new InstrumentSpec(Arrays.asList(
-                        Specification.INSTRUMENT_TYPE, InstrumentType.MANDOLIN,
-                        Specification.TYPE, Type.ACOUSTIC,
-                        Specification.MODEL, "DRSM-008 E",
-                        Specification.BACKWOOD, Wood.MAPLE,
-                        Specification.TOPWOOD, Wood.MAPLE,
-                        Specification.BUILDER, Builder.PRS,
-                        Specification.STYLE, Style.A
-                ))));
-
-        inventory.addInstrument(new Instrument("7819920", 549,
-                new InstrumentSpec(Arrays.asList(
-                        Specification.INSTRUMENT_TYPE, InstrumentType.MANDOLIN,
-                        Specification.TYPE, Type.ACOUSTIC,
-                        Specification.MODEL, "F-5G",
-                        Specification.BACKWOOD, Wood.MAPLE,
-                        Specification.TOPWOOD, Wood.MAPLE,
-                        Specification.BUILDER, Builder.GIBSON,
-                        Specification.STYLE, Style.F
-                ))));
-        inventory.addInstrument(new Instrument("8900231", 2945.95,
-                new InstrumentSpec(Arrays.asList(
-                        Specification.INSTRUMENT_TYPE, InstrumentType.BANJO,
-                        Specification.MODEL, "RB-3 Wreath",
-                        Specification.YEAR_OF_MANUFACTURE, 1967
-                ))));
-        inventory.addInstrument(new Instrument("70108276", 2295.95,
-                new InstrumentSpec(Arrays.asList(
-                        Specification.INSTRUMENT_TYPE, InstrumentType.GUITAR,
-                        Specification.BUILDER, Builder.GIBSON,
-                        Specification.MODEL, "Les Paul",
-                        Specification.BACKWOOD, Wood.MAPLE,
-                        Specification.TOPWOOD, Wood.MAPLE
-                ))));
-        inventory.addInstrument(new Instrument("V95693", 1499.95,
-                new InstrumentSpec(Arrays.asList(
-                        Specification.INSTRUMENT_TYPE, InstrumentType.GUITAR,
-                        Specification.BUILDER, Builder.FENDER,
-                        Specification.MODEL, "Stratocastor",
-                        Specification.BACKWOOD, Wood.ALDER,
-                        Specification.TOPWOOD, Wood.ALDER,
-                        Specification.TYPE, Type.ELECTRIC
-                ))));
-        inventory.addInstrument(new Instrument("V9512", 1549.95,
-                new InstrumentSpec(Arrays.asList(
-                        Specification.INSTRUMENT_TYPE, InstrumentType.GUITAR,
-                        Specification.BUILDER, Builder.FENDER,
-                        Specification.MODEL, "Stratocastor",
-                        Specification.BACKWOOD, Wood.ALDER,
-                        Specification.TOPWOOD, Wood.ALDER,
-                        Specification.TYPE, Type.ELECTRIC
-                ))));
-        inventory.addInstrument(new Instrument("122784", 5495.95,
-                new InstrumentSpec(Arrays.asList(
-                        Specification.INSTRUMENT_TYPE, InstrumentType.GUITAR,
-                        Specification.BUILDER, Builder.MARTIN,
-                        Specification.MODEL, "D-18",
-                        Specification.BACKWOOD, Wood.MAHOGANY,
-                        Specification.TOPWOOD, Wood.ADIRONDACK
-                ))));
-        inventory.addInstrument(new Instrument("11277", 3999.95,
-                new InstrumentSpec(Arrays.asList(
-                        Specification.INSTRUMENT_TYPE, InstrumentType.GUITAR,
-                        Specification.BUILDER, Builder.COLLINGS,
-                        Specification.MODEL, "CJ",
-                        Specification.BACKWOOD, Wood.INDIAN_ROSEWOOD,
-                        Specification.TOPWOOD, Wood.SITKA,
-                        Specification.TYPE, Type.ACOUSTIC,
-                        Specification.NUMBER_OF_STRINGS, 6
-                ))));
-    }
-}

src/main/java/net/itsthesky/projetbut2/qualdev/Inventory.java

@@ -1,54 +0,0 @@
-package net.itsthesky.projetbut2.qualdev;
-
-import net.itsthesky.projetbut2.qualdev.model.Instrument;
-import net.itsthesky.projetbut2.qualdev.model.InstrumentSpec;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Gère l'inventaire des instruments
- */
-public class Inventory {
-
-    private final List<Instrument> instruments = new ArrayList<>();
-
-    /**
-     * Rajoute un instrument à cet inventaire, basé sur son serial number,
-     * prix et spécifications.
-     * @param instrument l'instrument à ajouter
-     * @see InstrumentSpec
-     */
-    public void addInstrument(Instrument instrument) {
-        instruments.add(instrument);
-    }
-
-    /**
-     * Récupère un instrument de cet instrument basé sur son numéro de série.
-     * @param serialNumber le numéro de série à chercher
-     * @return l'instrument trouvé avec le même numéro de série fourni, sinon <code>null</code>
-     */
-    public Instrument getInstrument(String serialNumber) {
-        return instruments.stream()
-                .filter(instrument -> instrument.getSerialNumber().equals(serialNumber))
-                .findFirst()
-                .orElse(null);
-    }
-
-    /**
-     * Recherche tous les instruments correspondant aux spécifications fournies.
-     * @param instrumentSpec les spécifications à rechercher
-     * @return une liste d'instruments correspondant aux spécifications
-     */
-    public List<Instrument> search(InstrumentSpec instrumentSpec) {
-        final var result = new ArrayList<Instrument>();
-
-        for (Instrument instrument : instruments) {
-            if (instrumentSpec.matches(instrument.getInstrumentSpec()))
-                result.add(instrument);
-        }
-
-        return result;
-    }
-
-}

src/main/java/net/itsthesky/projetbut2/qualdev/model/Instrument.java

@@ -1,64 +0,0 @@
-package net.itsthesky.projetbut2.qualdev.model;
-
-/**
- * Classe abstraite représentant un instrument de musique.
- */
-public class Instrument {
-
-    private final String serialNumber;
-    private final InstrumentSpec instrumentSpec;
-    private double price;
-
-    /**
-     * Constructeur d'un instrument.
-     * @param serialNumber le numéro de série de l'instrument
-     * @param price le prix de l'instrument
-     * @param instrumentSpec les spécifications de l'instrument
-     */
-    public Instrument(String serialNumber, double price, InstrumentSpec instrumentSpec) {
-        this.serialNumber = serialNumber;
-        this.instrumentSpec = instrumentSpec;
-        this.price = price;
-    }
-
-    /**
-     * Récupère le numéro de série de l'instrument.
-     * @return le numéro de série
-     */
-    public String getSerialNumber() {
-        return serialNumber;
-    }
-
-    /**
-     * Récupère les spécifications de l'instrument.
-     * @return les spécifications
-     */
-    public InstrumentSpec getInstrumentSpec() {
-        return instrumentSpec;
-    }
-
-    /**
-     * Récupère le prix de l'instrument.
-     * @return le prix
-     */
-    public double getPrice() {
-        return price;
-    }
-
-    /**
-     * Modifie le prix de l'instrument.
-     * @param price le nouveau prix
-     */
-    public void setPrice(double price) {
-        this.price = price;
-    }
-
-    @Override
-    public String toString() {
-        return "Instrument{" +
-                "serialNumber='" + serialNumber + '\'' +
-                ", instrumentSpec=" + instrumentSpec +
-                ", price=" + price +
-                '}';
-    }
-}

src/main/java/net/itsthesky/projetbut2/qualdev/model/InstrumentSpec.java

@@ -1,69 +0,0 @@
-package net.itsthesky.projetbut2.qualdev.model;
-
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-/**
- * Classe abstraite représentant les spécifications d'un instrument de musique.
- */
-public class InstrumentSpec {
-
-    private final Map<Specification<?>, Object> caracteristiques;
-
-    /**
-     * Constructeur des spécifications de l'instrument.
-     */
-    public InstrumentSpec() {
-        this.caracteristiques = new HashMap<>();
-    }
-
-    public InstrumentSpec(List<Object> specs) {
-        this.caracteristiques = new HashMap<>();
-        for (int i = 0; i < specs.size(); i += 2) {
-            Specification<?> key = (Specification<?>) specs.get(i);
-            Object value = specs.get(i + 1);
-
-            if (value.getClass() != key.type())
-                throw new IllegalArgumentException("Type de valeur incorrect pour la caractéristique " + key.label());
-
-            this.caracteristiques.put(key, value);
-        }
-    }
-
-    /**
-     * Vérifie si ces spécifications correspondent à d'autres spécifications.
-     * @param otherSpec les spécifications à comparer
-     * @return <code>true</code> si les spécifications correspondent, <code>false</code> sinon
-     */
-    public boolean matches(InstrumentSpec otherSpec) {
-        if (otherSpec == null) return false;
-        for (var caracteristique : caracteristiques.entrySet()) {
-            var otherValue = otherSpec.caracteristiques.get(caracteristique.getKey());
-            if (otherValue == null || !caracteristique.getValue().equals(otherValue)) {
-                return false;
-            }
-        }
-        return true;
-    }
-
-    public Map<Specification<?>, ?> getCaracteristiques() {
-        return caracteristiques;
-    }
-
-    public <T> T getCaracteristique(Specification<T> specification) {
-        return (T) caracteristiques.get(specification);
-    }
-
-    public <T> InstrumentSpec addCaracteristique(Specification<T> specification, T value) {
-        this.caracteristiques.put(specification, value);
-        return this;
-    }
-
-    @Override
-    public String toString() {
-        return "InstrumentSpec{" +
-                "caracteristiques=" + caracteristiques +
-                '}';
-    }
-}

src/main/java/net/itsthesky/projetbut2/qualdev/model/Specification.java

@@ -1,19 +0,0 @@
-package net.itsthesky.projetbut2.qualdev.model;
-
-import net.itsthesky.projetbut2.qualdev.model.specs.*;
-
-public record Specification<T>(Class<T> type, String label) {
-
-    public static Specification<Builder> BUILDER = new Specification<>(Builder.class, "Fabricantt");
-    public static Specification<String> MODEL = new Specification<>(String.class, "Modèle");
-    public static Specification<Integer> NUMBER_OF_STRINGS = new Specification<>(Integer.class, "Nombre de cordes");
-    public static Specification<Type> TYPE = new Specification<>(Type.class, "Type");
-    public static Specification<Style> STYLE = new Specification<>(Style.class, "Style");
-    public static Specification<Integer> YEAR_OF_MANUFACTURE = new Specification<>(Integer.class, "Année de fabrication");
-
-    public static Specification<Wood> TOPWOOD = new Specification<>(Wood.class, "Bois dessus");
-    public static Specification<Wood> BACKWOOD = new Specification<>(Wood.class, "Bois dessous");
-
-    public static Specification<InstrumentType> INSTRUMENT_TYPE = new Specification<>(InstrumentType.class, "Type d'instrument");
-
-}

src/main/java/net/itsthesky/projetbut2/qualdev/model/specs/Builder.java

@@ -1,14 +0,0 @@
-package net.itsthesky.projetbut2.qualdev.model.specs;
-
-/**
- * Représente un constructeur d'instrument de musique.
- */
-public enum Builder {
-    COLLINGS,
-    FENDER,
-    GIBSON,
-    MARTIN,
-    OLSON,
-    RYAN,
-    PRS
-}

src/main/java/net/itsthesky/projetbut2/qualdev/model/specs/InstrumentType.java

@@ -1,11 +0,0 @@
-package net.itsthesky.projetbut2.qualdev.model.specs;
-
-public enum InstrumentType {
-
-    GUITAR, MANDOLIN, CELLO, BANJO, VIOLIN, DOBRO, FIDDLE, BASS, ;
-
-    public String toString () {
-
-        return this.name().toLowerCase();
-    }
-}

src/main/java/net/itsthesky/projetbut2/qualdev/model/specs/Style.java

@@ -1,10 +0,0 @@
-package net.itsthesky.projetbut2.qualdev.model.specs;
-
-/**
- * Représente le style d'une {@link net.itsthesky.projetbut2.qualdev.model.mandoline.MandolineSpec mandoline}; A pour
- * Acoustique et F pour Fender.
- */
-public enum Style {
-    A,
-    F
-}

src/main/java/net/itsthesky/projetbut2/qualdev/model/specs/Type.java

@@ -1,8 +0,0 @@
-package net.itsthesky.projetbut2.qualdev.model.specs;
-
-/**
- * Représent le type d'une {@link net.itsthesky.projetbut2.qualdev.model.guitar.GuitarSpec guitar}.
- */
-public enum Type {
-    ACOUSTIC, ELECTRIC
-}

src/main/java/net/itsthesky/projetbut2/qualdev/model/specs/Wood.java

@@ -1,17 +0,0 @@
-package net.itsthesky.projetbut2.qualdev.model.specs;
-
-/**
- * Représente le type de bois utilisé dans la confection
- * de l'{@link net.itsthesky.projetbut2.qualdev.model.Instrument instrument}.
- */
-public enum Wood {
-    ADIRONDACK,
-    CEDAR,
-    COCOBOLO,
-    MAHOGANY,
-    MAPLE,
-    SITKA,
-    ALDER,
-    BRAZILIAN_ROSEWOOD,
-    INDIAN_ROSEWOOD
-}