implemented composite pattern
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bin/uebung08/doc/Book.class
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bin/uebung08/doc/Book.class
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bin/uebung08/doc/BookDemo.class
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bin/uebung08/doc/BookDemo.class
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bin/uebung08/doc/Image.class
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bin/uebung08/doc/Image.class
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bin/uebung08/doc/Paragraph.class
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bin/uebung08/doc/Paragraph.class
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bin/uebung08/doc/Section.class
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bin/uebung08/doc/Section.class
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bin/uebung08/doc/TextComponent.class
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bin/uebung08/doc/TextComponent.class
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src/uebung08/doc/Book.java
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src/uebung08/doc/Book.java
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package uebung08.doc;
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import java.util.List;
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public class Book {
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private String title;
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private String author;
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List<TextComponent> content;
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public Book(String author, String title, List<TextComponent> content) {
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this.author = author;
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this.title = title;
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this.content = content;
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}
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public int countWords() {
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int wordcount = 0;
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for (TextComponent textComponent : content) {
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wordcount += textComponent.countWords();
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}
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return wordcount;
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}
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public String toText() {
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return "";
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}
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public String tableOfContents() {
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return "";
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}
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public int countWordsByVisitor() {
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return 0;
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}
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}
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148
src/uebung08/doc/BookDemo.java
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src/uebung08/doc/BookDemo.java
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package uebung08.doc;
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import java.util.List;
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public class BookDemo {
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private static final String TEXT0 = "Über Entwurf und Realisierung eierlegender Wollmilchsäue.";
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private static final String TEXT1 = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod " +
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"tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. " +
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"At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd " +
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"gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum " +
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"dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor " +
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"invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.";
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private static final String TEXT2 = "Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie " +
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"consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan " +
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"et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis " +
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"dolore te feugait nulla facilisi. Lorem ipsum dolor sit amet, consectetuer " +
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"adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore " +
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"magna aliquam erat volutpat.";
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private static final String TEXT3 = "Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit " +
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"lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure " +
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"dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore " +
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"eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim " +
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"qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla " +
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"facilisi.";
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private static final String TEXT4 = "Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet doming " +
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"id quod mazim placerat facer possim assum. Lorem ipsum dolor sit amet, " +
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"consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet " +
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"dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud " +
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"exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo " +
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"consequat.";
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private static final String TEXT5 = "Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie " +
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"consequat, vel illum dolore eu feugiat nulla facilisis.";
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private static final String TEXT6 = "At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, " +
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"no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, " +
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"consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et " +
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"dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo " +
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"duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est " +
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"Lorem ipsum dolor sit amet.";
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private static final String TEXT7 = "Consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore " +
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"et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et " +
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"justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata " +
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"sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur " +
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"sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore " +
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"magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo " +
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"dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est " +
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"Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing " +
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"elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam " +
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"erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea " +
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"rebum. Stet clita kasd gubergren, no sea takimata sanctus.";
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private static final String TEXT8 = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy " +
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"eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam " +
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"voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet " +
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"clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit " +
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"amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam " +
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"nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed " +
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"diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet " +
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"clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. ";
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private static final String TEXT9 = "Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie " +
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"consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan " +
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"et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis " +
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"dolore te feugait nulla facilisi. Lorem ipsum dolor sit amet, consectetuer " +
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"adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore " +
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"magna aliquam erat volutpat.";
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private static final String TEXT10 = "Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit " +
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"lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure " +
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"dolor in hendrerit in vulputate velit esse molestie consequat, vel illum " +
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"dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio " +
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"dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te " +
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"feugait nulla facilisi.";
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private static final String TEXT11 = "Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet " +
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"doming id quod mazim placerat facer possim assum. Lorem ipsum dolor sit amet, " +
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"consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut " +
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"laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, " +
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"quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex " +
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"ea commodo";
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private static final String TEXT12 = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy " +
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"eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam " +
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"voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet " +
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"clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit " +
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"amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam " +
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"nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed " +
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"diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet " +
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"clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.";
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private static final String TEXT13 = "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy " +
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"eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam " +
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"voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita " +
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"kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.";
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private static final String TEXT14 = "At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, " +
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"no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit " +
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"amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut " +
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"labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam " +
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"et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata " +
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"sanctus est Lorem ipsum dolor sit amet.";
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private static final String TEXT15 = "Lorem ipsum dolor sit amet, consetetur sadipscing " +
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"elitr, At accusam aliquyam diam diam dolore dolores duo eirmod eos erat, et " +
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"nonumy sed tempor et et invidunt justo labore Stet clita ea et gubergren, kasd " +
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"magna no rebum. sanctus sea sed takimata ut vero voluptua. est Lorem ipsum " +
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"dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed " +
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"diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.";
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public static void main(String[] args) {
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final Book book = makeBook();
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// Aufgabe 1
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System.out.println("Buch enthält " + book.countWords() + " Wörter");
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// Aufgabe 2
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System.out.println("Buch enthält " + book.countWordsByVisitor() + " Wörter");
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System.out.println("Inhalt: " + book.tableOfContents());
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System.out.println(book.toText());
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}
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private static Book makeBook() {
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final Section sec1 = new Section("Einführung",
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List.of(new Paragraph(TEXT1),
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new Paragraph(TEXT2)));
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final Section sec2 = new Section("Hintergrund",
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List.of(new Paragraph(TEXT3),
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new Section("Geschichte",
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List.of(new Paragraph(TEXT4),
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new Image("https://www.bekannt.de/p1.pdf",
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"Bild 1"),
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new Paragraph(TEXT5))),
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new Section("Literatur",
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List.of(new Paragraph(TEXT6),
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new Image("https://www.eh-klar.de/p2.pdf",
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"Bild 2"),
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new Paragraph(TEXT7),
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new Image("https://www.jeder-weiss-es.de/p3.pdf",
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"Bild 3"),
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new Paragraph(TEXT8)))));
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final Section sec3 = new Section("Idee",
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List.of(new Paragraph(TEXT9)));
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final Section sec4 = new Section("Umsetzung",
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List.of(new Paragraph(TEXT10),
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new Section("Entwurf",
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List.of(new Paragraph(TEXT11),
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new Section("Grobentwurf",
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List.of(new Paragraph(TEXT12))),
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new Section("Feinentwurf",
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List.of(new Paragraph(TEXT13))))),
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new Section("Realisierung",
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List.of(new Paragraph(TEXT14)))));
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final Section sec5 = new Section("Zusammenfassung und Ausblick", List.of(new Paragraph(TEXT15)));
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return new Book("Peter Mustermann", "Die eierlegende Wollmilchsau",
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List.of(new Paragraph(TEXT0), sec1, sec2, sec3, sec4, sec5));
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}
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}
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22
src/uebung08/doc/Image.java
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src/uebung08/doc/Image.java
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package uebung08.doc;
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public class Image implements TextComponent {
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private String url;
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private String caption;
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public Image(String url, String caption) {
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this.url = url;
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this.caption = caption;
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}
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public int countWords() {
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return 0;
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}
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@Override
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public <T> boolean accept(CountWordsVisitor<T> visitor) {
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return visitor.visit(this);
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}
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}
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30
src/uebung08/doc/Paragraph.java
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src/uebung08/doc/Paragraph.java
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package uebung08.doc;
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public class Paragraph implements TextComponent {
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private String text;
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public Paragraph(String text) {
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this.text = text;
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}
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public int countWords() {
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int wordcount = 0;
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boolean isInWord = false;
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for (int i = 0; i < text.length(); i++) {
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if(Character.isAlphabetic(text.charAt(i))){
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if (!isInWord) {
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wordcount++;
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isInWord = true;
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}
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} else {
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isInWord = false;
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}
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}
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return wordcount;
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}
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}
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23
src/uebung08/doc/Section.java
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src/uebung08/doc/Section.java
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package uebung08.doc;
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import java.util.List;
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public class Section implements TextComponent {
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private String header;
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private List<TextComponent> content;
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public Section(String header, List<TextComponent> content) {
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this.header = header;
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this.content = content;
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}
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public int countWords() {
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int wordcount = 0;
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for (TextComponent textComponent : content) {
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wordcount += textComponent.countWords();
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}
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return wordcount;
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}
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}
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7
src/uebung08/doc/TextComponent.java
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7
src/uebung08/doc/TextComponent.java
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package uebung08.doc;
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public interface TextComponent {
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public int countWords();
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public <T> boolean accept(Visitor<T> visitor);
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}
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