abstract factory review

sunwng · May 9, 2023 · 8feb8cc · 8feb8cc
1 parent 1efaa22
commit 8feb8cc
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Showing 25 changed files with 288 additions and 118 deletions.
diff --git a/src/creational/abstract_factory/Army.java b/src/creational/abstract_factory/Army.java
diff --git a/src/creational/abstract_factory/Castle.java b/src/creational/abstract_factory/Castle.java
diff --git a/src/creational/abstract_factory/ElfArmy.java b/src/creational/abstract_factory/ElfArmy.java
diff --git a/src/creational/abstract_factory/ElfCastle.java b/src/creational/abstract_factory/ElfCastle.java
diff --git a/src/creational/abstract_factory/ElfKing.java b/src/creational/abstract_factory/ElfKing.java
diff --git a/src/creational/abstract_factory/ElfKingdomFactory.java b/src/creational/abstract_factory/ElfKingdomFactory.java
diff --git a/src/creational/abstract_factory/King.java b/src/creational/abstract_factory/King.java
diff --git a/src/creational/abstract_factory/KingdomFactory.java b/src/creational/abstract_factory/KingdomFactory.java
diff --git a/src/creational/abstract_factory/OrcArmy.java b/src/creational/abstract_factory/OrcArmy.java
diff --git a/src/creational/abstract_factory/OrcCastle.java b/src/creational/abstract_factory/OrcCastle.java
diff --git a/src/creational/abstract_factory/OrcKing.java b/src/creational/abstract_factory/OrcKing.java
diff --git a/src/creational/abstract_factory/OrcKingdomFactory.java b/src/creational/abstract_factory/OrcKingdomFactory.java
diff --git a/src/creational/abstract_factory/divfactory/DivFactory.java b/src/creational/abstract_factory/divfactory/DivFactory.java
@@ -0,0 +1,23 @@
+package creational.abstract_factory.divfactory;
+
+import creational.abstract_factory.factory.Factory;
+import creational.abstract_factory.factory.Link;
+import creational.abstract_factory.factory.Page;
+import creational.abstract_factory.factory.Tray;
+
+public class DivFactory extends Factory {
+    @Override
+    public Link createLink(String caption, String url) {
+        return new DivLink(caption, url);
+    }
+
+    @Override
+    public Tray createTray(String caption) {
+        return new DivTray(caption);
+    }
+
+    @Override
+    public Page createPage(String title, String author) {
+        return new DivPage(title, author);
+    }
+}
diff --git a/src/creational/abstract_factory/divfactory/DivLink.java b/src/creational/abstract_factory/divfactory/DivLink.java
@@ -0,0 +1,14 @@
+package creational.abstract_factory.divfactory;
+
+import creational.abstract_factory.factory.Link;
+
+public class DivLink extends Link {
+    public DivLink(String caption, String url) {
+        super(caption, url);
+    }
+
+    @Override
+    public String makeHTML() {
+        return "<div class=\"LINK\"><a href=\"" + url + "\">" + caption + "</a></div>\n";
+    }
+}
diff --git a/src/creational/abstract_factory/divfactory/DivPage.java b/src/creational/abstract_factory/divfactory/DivPage.java
@@ -0,0 +1,33 @@
+package creational.abstract_factory.divfactory;
+
+import creational.abstract_factory.factory.Item;
+import creational.abstract_factory.factory.Page;
+
+public class DivPage extends Page {
+    public DivPage(String title, String author) {
+        super(title, author);
+    }
+
+    @Override
+    public String makeHTML() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("<!DOCTYPE html>\n");
+        sb.append("<html><head><title>");
+        sb.append(title);
+        sb.append("</title><style>\n");
+        sb.append("div.TRAY { padding:0.5em; margin-left:5em; border:1px solid black; }\n");
+        sb.append("div.LINK { padding:0.5em; background-color: lightgray; }\n");
+        sb.append("</style></head><body>\n");
+        sb.append("<h1>");
+        sb.append(title);
+        sb.append("</h1>\n");
+        for (Item item: content) {
+            sb.append(item.makeHTML());
+        }
+        sb.append("<hr><address>");
+        sb.append(author);
+        sb.append("</address>\n");
+        sb.append("</body></html>\n");
+        return sb.toString();
+    }
+}
diff --git a/src/creational/abstract_factory/divfactory/DivTray.java b/src/creational/abstract_factory/divfactory/DivTray.java
@@ -0,0 +1,24 @@
+package creational.abstract_factory.divfactory;
+
+import creational.abstract_factory.factory.Item;
+import creational.abstract_factory.factory.Tray;
+
+public class DivTray extends Tray {
+    public DivTray(String caption) {
+        super(caption);
+    }
+
+    @Override
+    public String makeHTML() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("<p><b>");
+        sb.append(caption);
+        sb.append("</b></p>\n");
+        sb.append("<div class=\"TRAY\">");
+        for (Item item: tray) {
+            sb.append(item.makeHTML());
+        }
+        sb.append("</div>\n");
+        return sb.toString();
+    }
+}
diff --git a/src/creational/abstract_factory/factory/Factory.java b/src/creational/abstract_factory/factory/Factory.java
@@ -0,0 +1,21 @@
+package creational.abstract_factory.factory;
+
+public abstract class Factory {
+
+    public static Factory getFactory(String classname) {
+        Factory factory = null;
+        try {
+            factory = (Factory) Class.forName(classname).getDeclaredConstructor().newInstance();
+        } catch (Exception e) {
+            System.out.println(e.getMessage());
+        }
+        return factory;
+    }
+
+    public abstract Link createLink(String caption, String url);
+
+    public abstract Tray createTray(String caption);
+
+    public abstract Page createPage(String title, String author);
+
+}
diff --git a/src/creational/abstract_factory/factory/Item.java b/src/creational/abstract_factory/factory/Item.java
@@ -0,0 +1,11 @@
+package creational.abstract_factory.factory;
+
+public abstract class Item {
+    protected String caption;
+
+    public Item(String caption) {
+        this.caption = caption;
+    }
+
+    public abstract String makeHTML();
+}
diff --git a/src/creational/abstract_factory/factory/Link.java b/src/creational/abstract_factory/factory/Link.java
@@ -0,0 +1,11 @@
+package creational.abstract_factory.factory;
+
+public abstract class Link extends Item {
+
+    protected String url;
+
+    public Link(String caption, String url) {
+        super(caption);
+        this.url = url;
+    }
+}
diff --git a/src/creational/abstract_factory/factory/Page.java b/src/creational/abstract_factory/factory/Page.java
@@ -0,0 +1,35 @@
+package creational.abstract_factory.factory;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class Page {
+
+    protected String title;
+    protected String author;
+    protected List<Item> content = new ArrayList<>();
+
+    public Page(String title, String author) {
+        this.title = title;
+        this.author = author;
+    }
+
+    public void add(Item item) {
+        content.add(item);
+    }
+
+    public void output(String filename) {
+        try {
+            Files.writeString(Path.of(filename), makeHTML(), StandardOpenOption.CREATE,
+                StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.WRITE);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public abstract String makeHTML();
+}
diff --git a/src/creational/abstract_factory/factory/Tray.java b/src/creational/abstract_factory/factory/Tray.java
@@ -0,0 +1,17 @@
+package creational.abstract_factory.factory;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class Tray extends Item {
+
+    protected List<Item> tray = new ArrayList<>();
+
+    public Tray(String caption) {
+        super(caption);
+    }
+
+    public void add(Item item) {
+        tray.add(item);
+    }
+}
diff --git a/src/creational/abstract_factory/listfactory/ListFactory.java b/src/creational/abstract_factory/listfactory/ListFactory.java
@@ -0,0 +1,24 @@
+package creational.abstract_factory.listfactory;
+
+import creational.abstract_factory.factory.Factory;
+import creational.abstract_factory.factory.Link;
+import creational.abstract_factory.factory.Page;
+import creational.abstract_factory.factory.Tray;
+
+public class ListFactory extends Factory {
+
+    @Override
+    public Link createLink(String caption, String url) {
+        return new ListLink(caption, url);
+    }
+
+    @Override
+    public Tray createTray(String caption) {
+        return new ListTray(caption);
+    }
+
+    @Override
+    public Page createPage(String title, String author) {
+        return new ListPage(title, author);
+    }
+}
diff --git a/src/creational/abstract_factory/listfactory/ListLink.java b/src/creational/abstract_factory/listfactory/ListLink.java
@@ -0,0 +1,15 @@
+package creational.abstract_factory.listfactory;
+
+import creational.abstract_factory.factory.Link;
+
+public class ListLink extends Link {
+
+    public ListLink(String caption, String url) {
+        super(caption, url);
+    }
+
+    @Override
+    public String makeHTML() {
+        return "  <li><a href=\"" + url + "\">" + caption + "</a></li>\n";
+    }
+}