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BAEL-325: Refactored to use multi-module structure.

This commit is contained in:
Christian Rädel 2016-10-24 03:45:07 +02:00 committed by slavisa-baeldung
parent 2d678d6b32
commit 4576a1e3ae
54 changed files with 433 additions and 114 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
patterns/front-controller/pom.xml Normal file
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@ -0,0 +1,45 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>front-controller</artifactId>
<packaging>war</packaging>
<parent>
<artifactId>patterns-parent</artifactId>
<groupId>com.baeldung.patterns</groupId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<configuration>
<webApp>
<contextPath>/front-controller</contextPath>
</webApp>
</configuration>
</plugin>
</plugins>
</build>
</project>

38
patterns/front-controller/src/main/java/com/baeldung/patterns/front/controller/FrontControllerServlet.java Normal file
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@ -0,0 +1,38 @@
package com.baeldung.patterns.front.controller;
import com.baeldung.patterns.front.controller.commands.FrontCommand;
import com.baeldung.patterns.front.controller.commands.UnknownCommand;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class FrontControllerServlet extends HttpServlet {
@Override
protected void doGet(
HttpServletRequest request,
HttpServletResponse response
) throws ServletException, IOException {
FrontCommand command = getCommand(request);
command.init(getServletContext(), request, response);
command.process();
}
private FrontCommand getCommand(HttpServletRequest request) {
try {
Class type = Class.forName(
String.format(
"com.baeldung.patterns.front.controller.commands.%sCommand",
request.getParameter("command")
)
);
return (FrontCommand) type
.asSubclass(FrontCommand.class)
.newInstance();
} catch (Exception e) {
return new UnknownCommand();
}
}
}

32
patterns/front-controller/src/main/java/com/baeldung/patterns/front/controller/commands/FrontCommand.java Normal file
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@ -0,0 +1,32 @@
package com.baeldung.patterns.front.controller.commands;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public abstract class FrontCommand {
protected ServletContext context;
protected HttpServletRequest request;
protected HttpServletResponse response;
public void init(
ServletContext servletContext,
HttpServletRequest servletRequest,
HttpServletResponse servletResponse
) {
this.context = servletContext;
this.request = servletRequest;
this.response = servletResponse;
}
public abstract void process() throws ServletException, IOException;
protected void forward(String target) throws ServletException, IOException {
target = String.format("/WEB-INF/jsp/%s.jsp", target);
RequestDispatcher dispatcher = context.getRequestDispatcher(target);
dispatcher.forward(request, response);
}
}

21
patterns/front-controller/src/main/java/com/baeldung/patterns/front/controller/commands/SearchCommand.java Normal file
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@ -0,0 +1,21 @@
package com.baeldung.patterns.front.controller.commands;
import com.baeldung.patterns.front.controller.data.Book;
import com.baeldung.patterns.front.controller.data.BookshelfImpl;
import javax.servlet.ServletException;
import java.io.IOException;
public class SearchCommand extends FrontCommand {
@Override
public void process() throws ServletException, IOException {
Book book = new BookshelfImpl().getInstance()
.findByTitle(request.getParameter("title"));
if (book != null) {
request.setAttribute("book", book);
forward("book-found");
} else {
forward("book-notfound");
}
}
}

11
patterns/front-controller/src/main/java/com/baeldung/patterns/front/controller/commands/UnknownCommand.java Normal file
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@ -0,0 +1,11 @@
package com.baeldung.patterns.front.controller.commands;
import javax.servlet.ServletException;
import java.io.IOException;
public class UnknownCommand extends FrontCommand {
@Override
public void process() throws ServletException, IOException {
forward("unknown");
}
}

15
patterns/front-controller/src/main/java/com/baeldung/patterns/front/controller/data/Book.java Normal file
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@ -0,0 +1,15 @@
package com.baeldung.patterns.front.controller.data;
public interface Book {
String getAuthor();
void setAuthor(String author);
String getTitle();
void setTitle(String title);
Double getPrice();
void setPrice(Double price);
}

46
patterns/front-controller/src/main/java/com/baeldung/patterns/front/controller/data/BookImpl.java Normal file
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@ -0,0 +1,46 @@
package com.baeldung.patterns.front.controller.data;
public class BookImpl implements Book {
private String author;
private String title;
private Double price;
public BookImpl() {
}
public BookImpl(String author, String title, Double price) {
this.author = author;
this.title = title;
this.price = price;
}
@Override
public String getAuthor() {
return author;
}
@Override
public void setAuthor(String author) {
this.author = author;
}
@Override
public String getTitle() {
return title;
}
@Override
public void setTitle(String title) {
this.title = title;
}
@Override
public Double getPrice() {
return price;
}
@Override
public void setPrice(Double price) {
this.price = price;
}
}

15
patterns/front-controller/src/main/java/com/baeldung/patterns/front/controller/data/Bookshelf.java Normal file
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@ -0,0 +1,15 @@
package com.baeldung.patterns.front.controller.data;
public interface Bookshelf {
default void init() {
add(new BookImpl("Wilson, Robert Anton & Shea, Robert", "Illuminati", 9.99));
add(new BookImpl("Fowler, Martin", "Patterns of Enterprise Application Architecture", 27.88));
}
Bookshelf getInstance();
<E extends Book> boolean add(E book);
Book findByTitle(String title);
}

24
patterns/front-controller/src/main/java/com/baeldung/patterns/front/controller/data/BookshelfImpl.java Normal file
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@ -0,0 +1,24 @@
package com.baeldung.patterns.front.controller.data;
import java.util.ArrayList;
public class BookshelfImpl extends ArrayList<Book> implements Bookshelf {
private static Bookshelf INSTANCE;
@Override
public Bookshelf getInstance() {
if (INSTANCE == null) {
INSTANCE = new BookshelfImpl();
INSTANCE.init();
}
return INSTANCE;
}
@Override
public Book findByTitle(String title) {
return this.stream()
.filter(book -> book.getTitle().toLowerCase().contains(title.toLowerCase()))
.findFirst()
.orElse(null);
}
}

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22
patterns/front-controller/src/main/resources/front controller.puml Normal file
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@ -0,0 +1,22 @@
@startuml
class Handler {
doGet
doPost
}
abstract class AbstractCommand {
process
}
class ConcreteCommand1 {
process
}
class ConcreteCommand2 {
process
}
Handler .right.> AbstractCommand
AbstractCommand <|-- ConcreteCommand1
AbstractCommand <|-- ConcreteCommand2
@enduml

12
patterns/front-controller/src/main/webapp/WEB-INF/jsp/book-found.jsp Normal file
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@ -0,0 +1,12 @@
<!DOCTYPE html>
<html>
<head>
<title>Bookshelf: Title found</title>
</head>
<body>
<p>Our Bookshelf contains this title:</p>
<h2>${book.getTitle()}</h2>
<p>Author: ${book.getAuthor()}</p>
<input type="submit" value="Buy it: ${book.getPrice()}$">
</body>
</html>

10
patterns/front-controller/src/main/webapp/WEB-INF/jsp/book-notfound.jsp Normal file
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@ -0,0 +1,10 @@
<!DOCTYPE html>
<html>
<head>
<title>Bookshelf: Title not found</title>
</head>
<body>
<p>Our Bookshelf doesn't contains this title:</p>
<h2>${param.get("title")}</h2>
</body>
</html>

9
patterns/front-controller/src/main/webapp/WEB-INF/jsp/unknown.jsp Normal file
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@ -0,0 +1,9 @@
<!DOCTYPE html>
<html>
<head>
<title>Bookshelf: Command unknown</title>
</head>
<body>
<p>Sorry, this command is not known!</p>
</body>
</html>

15
patterns/front-controller/src/main/webapp/WEB-INF/web.xml Normal file
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@ -0,0 +1,15 @@
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<servlet>
<servlet-name>front-controller</servlet-name>
<servlet-class>com.baeldung.patterns.front.controller.FrontControllerServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>front-controller</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

14
patterns/src/main/java/com/baeldung/patterns/FrontControllerServlet.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/FrontControllerServlet.java
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@ -1,9 +1,9 @@
package com.baeldung.patterns;
package com.baeldung.patterns.intercepting.filter;
import com.baeldung.patterns.commands.FrontCommand;
import com.baeldung.patterns.commands.UnknownCommand;
import com.baeldung.patterns.data.Bookshelf;
import com.baeldung.patterns.data.BookshelfImpl;
import com.baeldung.patterns.intercepting.filter.commands.FrontCommand;
import com.baeldung.patterns.intercepting.filter.commands.UnknownCommand;
import com.baeldung.patterns.intercepting.filter.data.Bookshelf;
import com.baeldung.patterns.intercepting.filter.data.BookshelfImpl;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
@ -13,7 +13,7 @@ import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet(name = "front-controller", urlPatterns = "/index")
@WebServlet(name = "intercepting-filter", urlPatterns = "/")
public class FrontControllerServlet extends HttpServlet {
@Override
public void init(ServletConfig config) throws ServletException {
@ -52,7 +52,7 @@ public class FrontControllerServlet extends HttpServlet {
try {
Class type = Class.forName(
String.format(
"com.baeldung.patterns.commands.%sCommand",
"com.baeldung.patterns.intercepting.filter.commands.%sCommand",
request.getParameter("command")
)
);

6
patterns/src/main/java/com/baeldung/patterns/commands/CheckoutCommand.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/commands/CheckoutCommand.java
View File

@ -1,6 +1,6 @@
package com.baeldung.patterns.commands;
package com.baeldung.patterns.intercepting.filter.commands;
import com.baeldung.patterns.data.Order;
import com.baeldung.patterns.intercepting.filter.data.Order;
import javax.servlet.ServletException;
import javax.servlet.http.HttpSession;
@ -13,7 +13,7 @@ public class CheckoutCommand extends FrontCommand {
HttpSession session = request.getSession(false);
if (request.getMethod().equals("POST")) {
session.removeAttribute("order");
response.sendRedirect("index?command=Home&message=Thank you for buying!");
response.sendRedirect("/?command=Home&message=Thank you for buying!");
} else {
Order order = (Order) session.getAttribute("order");
Double total = order.getItems().entrySet().stream()

6
patterns/src/main/java/com/baeldung/patterns/commands/FrontCommand.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/commands/FrontCommand.java
View File

@ -1,7 +1,7 @@
package com.baeldung.patterns.commands;
package com.baeldung.patterns.intercepting.filter.commands;
import com.baeldung.patterns.filters.FilterManager;
import com.baeldung.patterns.filters.OnIntercept;
import com.baeldung.patterns.intercepting.filter.filters.FilterManager;
import com.baeldung.patterns.intercepting.filter.filters.OnIntercept;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;

4
patterns/src/main/java/com/baeldung/patterns/commands/HomeCommand.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/commands/HomeCommand.java
View File

@ -1,6 +1,6 @@
package com.baeldung.patterns.commands;
package com.baeldung.patterns.intercepting.filter.commands;
import com.baeldung.patterns.data.Bookshelf;
import com.baeldung.patterns.intercepting.filter.data.Bookshelf;
import javax.servlet.ServletException;
import java.io.IOException;

2
patterns/src/main/java/com/baeldung/patterns/commands/LoginCommand.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/commands/LoginCommand.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.commands;
package com.baeldung.patterns.intercepting.filter.commands;
import javax.servlet.ServletException;
import javax.servlet.http.HttpSession;

4
patterns/src/main/java/com/baeldung/patterns/commands/LogoutCommand.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/commands/LogoutCommand.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.commands;
package com.baeldung.patterns.intercepting.filter.commands;
import javax.servlet.ServletException;
import javax.servlet.http.HttpSession;
@ -11,6 +11,6 @@ public class LogoutCommand extends FrontCommand {
HttpSession session = request.getSession(false);
session.removeAttribute("username");
session.removeAttribute("order");
response.sendRedirect("index?command=Home");
response.sendRedirect("/?command=Home");
}
}

12
patterns/src/main/java/com/baeldung/patterns/commands/OrderCommand.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/commands/OrderCommand.java
View File

@ -1,9 +1,9 @@
package com.baeldung.patterns.commands;
package com.baeldung.patterns.intercepting.filter.commands;
import com.baeldung.patterns.data.Book;
import com.baeldung.patterns.data.Bookshelf;
import com.baeldung.patterns.data.Order;
import com.baeldung.patterns.data.OrderImpl;
import com.baeldung.patterns.intercepting.filter.data.Book;
import com.baeldung.patterns.intercepting.filter.data.Bookshelf;
import com.baeldung.patterns.intercepting.filter.data.Order;
import com.baeldung.patterns.intercepting.filter.data.OrderImpl;
import javax.servlet.ServletException;
import javax.servlet.http.HttpSession;
@ -27,7 +27,7 @@ public class OrderCommand extends FrontCommand {
Book book = bookshelf.get(isbn);
order.add(book, quantity);
session.setAttribute("order", order);
response.sendRedirect(String.format("index?command=Show&isbn=%s", isbn));
response.sendRedirect(String.format("/?command=Show&isbn=%s", isbn));
}
}
}

6
patterns/src/main/java/com/baeldung/patterns/commands/SearchCommand.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/commands/SearchCommand.java
View File

@ -1,7 +1,7 @@
package com.baeldung.patterns.commands;
package com.baeldung.patterns.intercepting.filter.commands;
import com.baeldung.patterns.data.Book;
import com.baeldung.patterns.data.Bookshelf;
import com.baeldung.patterns.intercepting.filter.data.Book;
import com.baeldung.patterns.intercepting.filter.data.Bookshelf;
import javax.servlet.ServletException;
import java.io.IOException;

6
patterns/src/main/java/com/baeldung/patterns/commands/ShowCommand.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/commands/ShowCommand.java
View File

@ -1,7 +1,7 @@
package com.baeldung.patterns.commands;
package com.baeldung.patterns.intercepting.filter.commands;
import com.baeldung.patterns.data.Book;
import com.baeldung.patterns.data.Bookshelf;
import com.baeldung.patterns.intercepting.filter.data.Book;
import com.baeldung.patterns.intercepting.filter.data.Bookshelf;
import javax.servlet.ServletException;
import java.io.IOException;

2
patterns/src/main/java/com/baeldung/patterns/commands/UnknownCommand.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/commands/UnknownCommand.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.commands;
package com.baeldung.patterns.intercepting.filter.commands;
import javax.servlet.ServletException;
import java.io.IOException;

2
patterns/src/main/java/com/baeldung/patterns/data/Book.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/data/Book.java
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@ -1,4 +1,4 @@
package com.baeldung.patterns.data;
package com.baeldung.patterns.intercepting.filter.data;
public interface Book {
String getIsbn();

2
patterns/src/main/java/com/baeldung/patterns/data/BookImpl.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/data/BookImpl.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.data;
package com.baeldung.patterns.intercepting.filter.data;
public class BookImpl implements Book {
private String isbn;

2
patterns/src/main/java/com/baeldung/patterns/data/Bookshelf.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/data/Bookshelf.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.data;
package com.baeldung.patterns.intercepting.filter.data;
import java.util.List;

2
patterns/src/main/java/com/baeldung/patterns/data/BookshelfImpl.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/data/BookshelfImpl.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.data;
package com.baeldung.patterns.intercepting.filter.data;
import java.util.ArrayList;
import java.util.List;

2
patterns/src/main/java/com/baeldung/patterns/data/Order.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/data/Order.java
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@ -1,4 +1,4 @@
package com.baeldung.patterns.data;
package com.baeldung.patterns.intercepting.filter.data;
import java.util.Map;

2
patterns/src/main/java/com/baeldung/patterns/data/OrderImpl.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/data/OrderImpl.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.data;
package com.baeldung.patterns.intercepting.filter.data;
import java.util.HashMap;
import java.util.Map;

6
patterns/src/main/java/com/baeldung/patterns/filters/AuthenticationFilter.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/filters/AuthenticationFilter.java
View File

@ -1,7 +1,7 @@
package com.baeldung.patterns.filters;
package com.baeldung.patterns.intercepting.filter.filters;
import com.baeldung.patterns.commands.FrontCommand;
import com.baeldung.patterns.commands.LoginCommand;
import com.baeldung.patterns.intercepting.filter.commands.FrontCommand;
import com.baeldung.patterns.intercepting.filter.commands.LoginCommand;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;

2
patterns/src/main/java/com/baeldung/patterns/filters/BaseFilter.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/filters/BaseFilter.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.filters;
package com.baeldung.patterns.intercepting.filter.filters;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

4
patterns/src/main/java/com/baeldung/patterns/filters/EncodingFilter.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/filters/EncodingFilter.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.filters;
package com.baeldung.patterns.intercepting.filter.filters;
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
@ -6,7 +6,7 @@ import javax.servlet.annotation.WebInitParam;
import java.io.IOException;
@WebFilter(
servletNames = {"front-controller"},
servletNames = {"intercepting-filter"},
initParams = {@WebInitParam(name = "encoding", value = "UTF-8")}
)
public class EncodingFilter extends BaseFilter {

2
patterns/src/main/java/com/baeldung/patterns/filters/FilterChainImpl.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/filters/FilterChainImpl.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.filters;
package com.baeldung.patterns.intercepting.filter.filters;
import javax.servlet.*;
import java.io.IOException;

2
patterns/src/main/java/com/baeldung/patterns/filters/FilterManager.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/filters/FilterManager.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.filters;
package com.baeldung.patterns.intercepting.filter.filters;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;

4
patterns/src/main/java/com/baeldung/patterns/filters/LoggingFilter.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/filters/LoggingFilter.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.filters;
package com.baeldung.patterns.intercepting.filter.filters;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -11,7 +11,7 @@ import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
@WebFilter(servletNames = "front-controller")
@WebFilter(servletNames = "intercepting-filter")
public class LoggingFilter extends BaseFilter {
private static final Logger log = LoggerFactory.getLogger(LoggingFilter.class);

5
patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/filters/OnIntercept.java Normal file
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@ -0,0 +1,5 @@
package com.baeldung.patterns.intercepting.filter.filters;
public interface OnIntercept {
void intercept();
}

2
patterns/src/main/java/com/baeldung/patterns/filters/TemplateFilter.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/filters/TemplateFilter.java
View File

@ -1,4 +1,4 @@
package com.baeldung.patterns.filters;
package com.baeldung.patterns.intercepting.filter.filters;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;

2
patterns/src/main/java/com/baeldung/patterns/filters/VisitorCounterFilter.java → patterns/intercepting-filter/src/main/java/com/baeldung/patterns/intercepting/filter/filters/VisitorCounterFilter.java
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@ -1,4 +1,4 @@
package com.baeldung.patterns.filters;
package com.baeldung.patterns.intercepting.filter.filters;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;

0
patterns/src/main/resources/front_controller.png → patterns/intercepting-filter/src/main/resources/front_controller.png
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patterns/src/main/resources/front_controller.puml → patterns/intercepting-filter/src/main/resources/front_controller.puml
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patterns/src/main/resources/intercepting_filter.png → patterns/intercepting-filter/src/main/resources/intercepting_filter.png
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0
patterns/src/main/resources/intercepting_filter.puml → patterns/intercepting-filter/src/main/resources/intercepting_filter.puml
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6
patterns/src/main/webapp/WEB-INF/jsp/book-found.jsp → patterns/intercepting-filter/src/main/webapp/WEB-INF/jsp/book-found.jsp
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@ -1,4 +1,4 @@
<%@ page import="com.baeldung.patterns.data.Book" %>
<%@ page import="com.baeldung.patterns.intercepting.filter.data.Book" %>
<%@ page import="java.util.List" %>
<!DOCTYPE html>
<html>
@ -10,12 +10,12 @@
<% for (Book book : (List<Book>) request.getAttribute("books")) { %>
<h2><%= book.getTitle() %></h2>
<p>Author: <%= book.getAuthor() %></p>
<form action="index?command=Order" method="POST">
<form action="/?command=Order" method="POST">
<label for="quantity">Quantity:</label>
<input type="text" id="quantity" name="quantity" value="1" required>
<input type="hidden" name="isbn" value="<%= book.getIsbn() %>">
<input type="submit" value="Buy it: <%= book.getPrice() %>$">
<a href="index?command=Home">Go back...</a>
<a href="/?command=Home">Go back...</a>
</form>
<% } %>
<%@ include file="shopping-cart-hint.jsp"%>

0
patterns/src/main/webapp/WEB-INF/jsp/book-notfound.jsp → patterns/intercepting-filter/src/main/webapp/WEB-INF/jsp/book-notfound.jsp
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6
patterns/src/main/webapp/WEB-INF/jsp/home.jsp → patterns/intercepting-filter/src/main/webapp/WEB-INF/jsp/home.jsp
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@ -1,4 +1,4 @@
<%@ page import="com.baeldung.patterns.data.Book" %>
<%@ page import="com.baeldung.patterns.intercepting.filter.data.Book" %>
<%@ page import="java.util.List" %>
<!DOCTYPE>
<html>
@ -6,7 +6,7 @@
<title>Bookshelf: Home</title>
</head>
<body>
<form action="index?command=Search" method="POST">
<form action="/?command=Search" method="POST">
<input type="text" id="search" name="q">
<input type="submit" value="Go!">
</form>
@ -19,7 +19,7 @@
<hr/>
<p><b><%= book.getAuthor() %>:</b></p>
<h3><%= book.getTitle() %></h3>
<a href="index?command=Show&isbn=<%= book.getIsbn() %>">More...</a>
<a href="/?command=Show&isbn=<%= book.getIsbn() %>">More...</a>
<% } %>
<%@ include file="shopping-cart-hint.jsp"%>
<%@ include file="visitor-counter.jsp"%>

2
patterns/src/main/webapp/WEB-INF/jsp/login.jsp → patterns/intercepting-filter/src/main/webapp/WEB-INF/jsp/login.jsp
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@ -6,7 +6,7 @@
<body>
<p>Please input a username:</p>
<h2>Login</h2>
<form action="index?command=Login" method="POST">
<form action="/?command=Login" method="POST">
<input type="text" name="username" placeholder="Username">
<input type="hidden" name="redirect" value="<%= (String) request.getAttribute("redirect") %>">
<input type="submit" value="Proceed">

4
patterns/src/main/webapp/WEB-INF/jsp/shopping-cart-hint.jsp → patterns/intercepting-filter/src/main/webapp/WEB-INF/jsp/shopping-cart-hint.jsp
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@ -1,4 +1,4 @@
<%@ page import="com.baeldung.patterns.data.Order" %>
<%@ page import="com.baeldung.patterns.intercepting.filter.data.Order" %>
<% if (session != null && session.getAttribute("order") != null) { %>
<% Order order = ((Order) session.getAttribute("order")); %>
<% if (order != null && order.getItems().size() > 0) { %>
@ -10,7 +10,7 @@
<% } else { %>
<%= (order.getItems().size()) %> items.
<% } %>
<a href="index?command=Checkout">Checkout</a>
<a href="/?command=Checkout">Checkout</a>
</p>
<% } %>
<% } %>

6
patterns/src/main/webapp/WEB-INF/jsp/shopping-cart.jsp → patterns/intercepting-filter/src/main/webapp/WEB-INF/jsp/shopping-cart.jsp
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@ -1,5 +1,5 @@
<%@ page import="com.baeldung.patterns.data.Book" %>
<%@ page import="com.baeldung.patterns.data.Order" %>
<%@ page import="com.baeldung.patterns.intercepting.filter.data.Book" %>
<%@ page import="com.baeldung.patterns.intercepting.filter.data.Order" %>
<%@ page import="java.util.Map" %>
<!DOCTYPE html>
<html>
@ -22,7 +22,7 @@
<p>
<b>Total: <%= request.getAttribute("total") %></b>
</p>
<form action="index?command=Checkout" method="POST">
<form action="/?command=Checkout" method="POST">
<input type="submit" value="Donate :)">
</form>
</body>

9
patterns/intercepting-filter/src/main/webapp/WEB-INF/jsp/unknown.jsp Normal file
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@ -0,0 +1,9 @@
<!DOCTYPE html>
<html>
<head>
<title>Bookshelf: Command unknown</title>
</head>
<body>
<p>Sorry, this command is not known!</p>
</body>
</html>

2
patterns/src/main/webapp/WEB-INF/jsp/visitor-counter.jsp → patterns/intercepting-filter/src/main/webapp/WEB-INF/jsp/visitor-counter.jsp
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@ -1,5 +1,5 @@
<% Integer counter = (Integer) request.getAttribute("counter"); %>
<% if (counter != null && counter > 0) { %>
<hr/>
<p>You are visitor #<%= counter %>. <a href="index?command=Logout">Logout</a></p>
<p>You are visitor #<%= counter %>. <a href="/?command=Logout">Logout</a></p>
<% } %>

89
patterns/pom.xml
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@ -4,60 +4,55 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung.patterns</groupId>
<artifactId>patterns-parent</artifactId>
<packaging>pom</packaging>
<modules>
<module>front-controller</module>
<module>intercepting-filter</module>
</modules>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>
<groupId>com.baeldung.patterns</groupId>
<artifactId>patterns</artifactId>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.21</version>
<scope>provided</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.3.11.v20160721</version>
<configuration>
<webApp>
<contextPath>/</contextPath>
</webApp>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<plugin>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>9.3.12.v20160915</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

5
patterns/src/main/java/com/baeldung/patterns/filters/OnIntercept.java
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@ -1,5 +0,0 @@
package com.baeldung.patterns.filters;
public interface OnIntercept {
void intercept();
}