Download file from url using Oracle ADF & Java- Download Manager

In this tutorial i will show you how to download a file from its url (web)-
as- http://www.tutorialspoint.com/java/java_tutorial.pdf
This will work as a simple download manager, you can add file url to download it and save it.
This tutorial makes use of FileHandling and java.net.URL class in java.

• User Interface is very simple to design as it have only one input text and one button, so create a fusion web application , and a bounded taskflow with a page fragment in it
• Now drag a Input text to enter url and a button to perform action on it from Componenet palette .
• Bind input text to bean to get its value from page



 private RichInputText fileUrlBind;

    public void setFileUrlBind(RichInputText fileUrlBind) {
        this.fileUrlBind = fileUrlBind;
    }

    public RichInputText getFileUrlBind() {
        return fileUrlBind;
    }

• Now create actionListener to managed bean and write code for downloading file from given url- see code



    public void DownloadFileButton(ActionEvent actionEvent) {
        try {
            if (fileUrlBind.getValue() != null) {
                String fileUrl = fileUrlBind.getValue().toString();
                if (fileUrl.startsWith("http://")) {
                    String msgNm = fileUrl.substring(7);

                    cnctmsgBind.setValue("Connecting to " + msgNm + "....");

                    URL url = new URL(fileUrl);
                    url.openConnection();
                    InputStream reader = url.openStream();


                    FileOutputStream writer =
                        new FileOutputStream("C:/javadrive." + fileUrl.substring(fileUrl.lastIndexOf(".")));
                    byte[] buffer = new byte[153600];
                    int totalBytesRead = 0;
                    int bytesRead = 0;

                   
                    dwnldMsgBind.setValue("Reading file 150KB blocks at a time");
                    while ((bytesRead = reader.read(buffer)) > 0) {
                        writer.write(buffer, 0, bytesRead);
                        buffer = new byte[153600];
                        totalBytesRead += bytesRead;
                    }
                 
                    alerMsgBind.setValue("File is downloaded successfully, look at your c drive :-)");
                    writer.close();
                    reader.close();
                } else {
                    FacesMessage errMsg = new FacesMessage("Something went wrong");
                    errMsg.setSeverity(FacesMessage.SEVERITY_ERROR);
                    errMsg.setDetail("Example- http://www.javadrive.co.in/java.pdf");
                    FacesContext context = FacesContext.getCurrentInstance();
                    context.addMessage(fileUrlBind.getClientId(), errMsg);
                }
            }
        } catch (MalformedURLException e) {
            FacesMessage errMsg = new FacesMessage("Something went wrong");
            errMsg.setSeverity(FacesMessage.SEVERITY_ERROR);
            FacesContext context = FacesContext.getCurrentInstance();
            context.addMessage(null, errMsg);
            e.printStackTrace();
        } catch (IOException e) {
            FacesMessage errMsg = new FacesMessage("Something went wrong");
            errMsg.setSeverity(FacesMessage.SEVERITY_ERROR);
            FacesContext context = FacesContext.getCurrentInstance();
            context.addMessage(null, errMsg);
            e.printStackTrace();
        }


    }






• Now Run your application and see downloaded file in your c drive as path is hard coded in bean

•  See your downloaded file in c drive

 

•  Download Sample Application- Happy Coding Sample ADF Application

Fun - Develop Tic Tac Toe game in Oracle ADF/Java

Tic Tac Toe or Naughty Cross is a paper-pencil game for two players and simple in  concept.
I have developed a application on ADF, using JSF page and unbounded adfc-config.xml .
There is nothing to explain, see the sample application at bottom of this post

• Tic Tac Toe game has 9 square to enter values 0 or X, so for that i have used 9 buttons and images of 0 and X

• And create a managed bean for all nine buttons, to execute proper conditions for each move
   
• See managed bean code and conditions for player's move(only Java Code is needed to do this)





package ticTacToeADF.view;

import javax.faces.event.ActionEvent;

import oracle.adf.view.rich.component.rich.nav.RichCommandButton;

public class TictactoeBean {

    public TictactoeBean() {
    }
    private static String one = "     ";
    private static String two = "     ";
    private static String three = "     ";
    private static String four = "     ";
    private static String five = "     ";
    private static String six = "     ";
    private static String seven = "     ";
    private static String eight = "     ";
    private static String nine = "     ";
    private static boolean check = false;
    private String Result = "";
    private static boolean oneDis = false;
    private static boolean twoDis = false;
    private static boolean threeDis = false;
    private static boolean fourDis = false;
    private static boolean fiveDis = false;
    private static boolean sixDis = false;
    private static boolean sevenDis = false;
    private static boolean eightDis = false;
    private static boolean nineDis = false;


    public void Button1(ActionEvent actionEvent) {
        if (check == false) {
            this.setOne("X");

            check = true;
            this.setOneDis(true);
            System.out.println("Check is--------->" + check);
            if (one.equalsIgnoreCase(two) && two.equalsIgnoreCase(three)) {
                this.setResult(one + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (one.equalsIgnoreCase(five) && five.equalsIgnoreCase(nine)) {
                this.setResult(one + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (one.equalsIgnoreCase(four) && four.equalsIgnoreCase(seven)) {
                this.setResult(one + " wins");
                finishgame();
                System.out.println("One wins");
            }


        } else {
            this.setOne("0");

            check = false;
            this.setOneDis(true);
            System.out.println("Check is--------->" + check);
            if (one.equalsIgnoreCase(two) && two.equalsIgnoreCase(three)) {
                this.setResult(one + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (one.equalsIgnoreCase(five) && five.equalsIgnoreCase(nine)) {
                this.setResult(one + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (one.equalsIgnoreCase(four) && four.equalsIgnoreCase(seven)) {
                this.setResult(one + " wins");
                finishgame();
                System.out.println("One wins");
            }

        }

    }

    public void Button2(ActionEvent actionEvent) {
        if (check == false) {
            this.setTwo("X");
            check = true;
            this.setTwoDis(true);
            System.out.println("Check is--------->" + check);
            if (two.equalsIgnoreCase(five) && five.equalsIgnoreCase(eight)) {
                this.setResult(two + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (two.equalsIgnoreCase(one) && one.equalsIgnoreCase(three)) {
                this.setResult(two + " wins");
                finishgame();
                System.out.println("One wins");
            }
        } else {
            this.setTwo("0");
            check = false;
            this.setTwoDis(true);
            System.out.println("Check is--------->" + check);
            if (two.equalsIgnoreCase(five) && five.equalsIgnoreCase(eight)) {
                this.setResult(two + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (two.equalsIgnoreCase(one) && one.equalsIgnoreCase(three)) {
                this.setResult(two + " wins");
                finishgame();
                System.out.println("One wins");
            }
        }
    }

    public void Button3(ActionEvent actionEvent) {
        if (check == false) {
            this.setThree("X");
            check = true;
            this.setThreeDis(true);
            System.out.println("Check is--------->" + check);

            if (three.equalsIgnoreCase(six) && six.equalsIgnoreCase(nine)) {
                this.setResult(three + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (three.equalsIgnoreCase(five) && five.equalsIgnoreCase(seven)) {
                this.setResult(three + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (three.equalsIgnoreCase(one) && one.equalsIgnoreCase(two)) {
                this.setResult(three + " wins");
                finishgame();
                System.out.println("One wins");
            }

        } else {
            this.setThree("0");
            check = false;
            this.setThreeDis(true);
            System.out.println("Check is--------->" + check);

            if (three.equalsIgnoreCase(six) && six.equalsIgnoreCase(nine)) {
                this.setResult(three + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (three.equalsIgnoreCase(five) && five.equalsIgnoreCase(seven)) {
                this.setResult(three + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (three.equalsIgnoreCase(one) && one.equalsIgnoreCase(two)) {
                this.setResult(three + " wins");
                finishgame();
                System.out.println("One wins");
            }
        }
    }

    public void Button4(ActionEvent actionEvent) {
        if (check == false) {
            this.setFour("X");
            check = true;
            this.setFourDis(true);
            System.out.println("Check is--------->" + check);

            if (four.equalsIgnoreCase(one) && one.equalsIgnoreCase(seven)) {
                this.setResult(four + " wins");
                finishgame();
                System.out.println("four wins");
            } else if (four.equalsIgnoreCase(five) && five.equalsIgnoreCase(six)) {
                this.setResult(four + " wins");
                finishgame();
                System.out.println("One wins");
            }

        } else {
            this.setFour("0");
            check = false;
            this.setFourDis(true);
            System.out.println("Check is--------->" + check);

            if (four.equalsIgnoreCase(one) && one.equalsIgnoreCase(seven)) {
                this.setResult(four + " wins");
                finishgame();
                System.out.println("four wins");
            } else if (four.equalsIgnoreCase(five) && five.equalsIgnoreCase(six)) {
                this.setResult(four + " wins");
                finishgame();
                System.out.println("One wins");
            }
        }
    }

    public void Button5(ActionEvent actionEvent) {
        if (check == false) {
            this.setFive("X");
            check = true;
            this.setFiveDis(true);
            System.out.println("Check is--------->" + check);

            if (one.equalsIgnoreCase(five) && five.equalsIgnoreCase(nine)) {
                this.setResult(five + " wins");
                finishgame();
                System.out.println("One wins");

            } else if (two.equalsIgnoreCase(five) && five.equalsIgnoreCase(eight)) {
                this.setResult(five + " wins");
                finishgame();
                System.out.println("One wins");
            }

            else if (four.equalsIgnoreCase(five) && five.equalsIgnoreCase(six)) {
                this.setResult(five + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (five.equalsIgnoreCase(three) && three.equalsIgnoreCase(seven)) {
                this.setResult(five + " wins");
                finishgame();
                System.out.println("One wins");
            }
        } else {
            this.setFive("0");
            check = false;
            this.setFiveDis(true);
            System.out.println("Check is--------->" + check);

            if (one.equalsIgnoreCase(five) && five.equalsIgnoreCase(nine)) {
                this.setResult(five + " wins");
                finishgame();
                System.out.println("One wins");

            } else if (two.equalsIgnoreCase(five) && five.equalsIgnoreCase(eight)) {
                this.setResult(five + " wins");
                finishgame();
                System.out.println("One wins");
            }

            else if (four.equalsIgnoreCase(five) && five.equalsIgnoreCase(six)) {
                this.setResult(five + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (five.equalsIgnoreCase(three) && three.equalsIgnoreCase(seven)) {
                this.setResult(five + " wins");
                finishgame();
                System.out.println("One wins");
            }

        }
    }

    public void Button6(ActionEvent actionEvent) {
        if (check == false) {
            this.setSix("X");
            check = true;
            this.setSixDis(true);
            System.out.println("Check is--------->" + check);

            if (four.equalsIgnoreCase(five) && five.equalsIgnoreCase(six)) {
                this.setResult(six + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (three.equalsIgnoreCase(six) && six.equalsIgnoreCase(nine)) {
                this.setResult(six + " wins");
                finishgame();
                System.out.println("One wins");
            }
        } else {
            this.setSix("0");
            check = false;
            this.setSixDis(true);
            System.out.println("Check is--------->" + check);

            if (four.equalsIgnoreCase(five) && five.equalsIgnoreCase(six)) {
                this.setResult(six + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (three.equalsIgnoreCase(six) && six.equalsIgnoreCase(nine)) {
                this.setResult(six + " wins");
                finishgame();
                System.out.println("One wins");
            }
        }
    }

    public void Button7(ActionEvent actionEvent) {
        if (check == false) {
            this.setSeven("X");
            check = true;
            this.setSevenDis(true);
            System.out.println("Check is--------->" + check);

            if (four.equalsIgnoreCase(one) && one.equalsIgnoreCase(seven)) {
                this.setResult(four + " wins");
                finishgame();
                System.out.println("four wins");
            } else if (five.equalsIgnoreCase(three) && three.equalsIgnoreCase(seven)) {
                this.setResult(seven + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (seven.equalsIgnoreCase(eight) && eight.equalsIgnoreCase(nine)) {
                this.setResult(seven + " wins");
                finishgame();
                System.out.println("One wins");
            }
        } else {
            this.setSeven("0");
            check = false;
            this.setSevenDis(true);
            System.out.println("Check is--------->" + check);
            if (four.equalsIgnoreCase(one) && one.equalsIgnoreCase(seven)) {
                this.setResult(four + " wins");
                finishgame();
                System.out.println("four wins");
            } else if (five.equalsIgnoreCase(three) && three.equalsIgnoreCase(seven)) {
                this.setResult(seven + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (seven.equalsIgnoreCase(eight) && eight.equalsIgnoreCase(nine)) {
                this.setResult(seven + " wins");
                finishgame();
                System.out.println("One wins");
            }
        }
    }

    public void Button8(ActionEvent actionEvent) {
        if (check == false) {
            this.setEight("X");
            check = true;
            this.setEightDis(true);
            System.out.println("Check is--------->" + check);
            if (eight.equalsIgnoreCase(two) && two.equalsIgnoreCase(five)) {
                this.setResult(eight + " wins");
                finishgame();
                System.out.println("four wins");
            } else if (eight.equalsIgnoreCase(seven) && seven.equalsIgnoreCase(nine)) {
                this.setResult(eight + " wins");
                finishgame();
                System.out.println("One wins");

            }
        } else {
            this.setEight("0");
            check = false;
            this.setEightDis(true);
            System.out.println("Check is--------->" + check);
            if (eight.equalsIgnoreCase(two) && two.equalsIgnoreCase(five)) {
                this.setResult(eight + " wins");
                finishgame();
                System.out.println("four wins");
            } else if (eight.equalsIgnoreCase(seven) && seven.equalsIgnoreCase(nine)) {
                this.setResult(eight + " wins");
                finishgame();
                System.out.println("One wins");

            }
        }
    }

    public void Button9(ActionEvent actionEvent) {
        if (check == false) {
            this.setNine("X");
            check = true;
            this.setNineDis(true);
            System.out.println("Check is--------->" + check);
            if (nine.equalsIgnoreCase(one) && one.equalsIgnoreCase(five)) {
                this.setResult(nine + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (three.equalsIgnoreCase(six) && six.equalsIgnoreCase(nine)) {
                this.setResult(six + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (eight.equalsIgnoreCase(seven) && seven.equalsIgnoreCase(nine)) {
                this.setResult(eight + " wins");
                finishgame();
                System.out.println("One wins");

            }
        } else {
            this.setNine("0");
            check = false;
            this.setNineDis(true);
            System.out.println("Check is--------->" + check);

            if (nine.equalsIgnoreCase(one) && one.equalsIgnoreCase(five)) {
                this.setResult(nine + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (three.equalsIgnoreCase(six) && six.equalsIgnoreCase(nine)) {
                this.setResult(six + " wins");
                finishgame();
                System.out.println("One wins");
            } else if (eight.equalsIgnoreCase(seven) && seven.equalsIgnoreCase(nine)) {
                this.setResult(eight + " wins");
                finishgame();
                System.out.println("One wins");

            }
        }
    }

    public void setOne(String one) {
        this.one = one;
    }

    public String getOne() {
        return one;
    }

    public void setTwo(String two) {
        this.two = two;
    }

    public String getTwo() {
        return two;
    }

    public void setThree(String three) {
        this.three = three;
    }

    public String getThree() {
        return three;
    }

    public void setFour(String four) {
        this.four = four;
    }

    public String getFour() {
        return four;
    }

    public void setFive(String five) {
        this.five = five;
    }

    public String getFive() {
        return five;
    }

    public void setSix(String six) {
        this.six = six;
    }

    public String getSix() {
        return six;
    }

    public void setSeven(String seven) {
        this.seven = seven;
    }

    public String getSeven() {
        return seven;
    }

    public void setEight(String eight) {
        this.eight = eight;
    }

    public String getEight() {
        return eight;
    }

    public void setNine(String nine) {
        this.nine = nine;
    }

    public String getNine() {
        return nine;
    }

    public void setResult(String Result) {
        this.Result = Result;
    }

    public String getResult() {
        return Result;
    }

    public void ResetButton(ActionEvent actionEvent) {
        this.one = "     ";
        this.two = "     ";
        this.three = "     ";
        this.four = "     ";
        this.five = "     ";
        this.six = "     ";
        this.seven = "     ";
        this.eight = "     ";
        this.nine = "     ";
        this.check = false;
        this.oneDis = false;
        this.twoDis = false;
        this.threeDis = false;
        this.fourDis = false;
        this.fiveDis = false;
        this.sixDis = false;
        this.sevenDis = false;
        this.eightDis = false;
        this.nineDis = false;

    }

    public void finishgame() {
        this.oneDis = true;
        this.twoDis = true;
        this.threeDis = true;
        this.fourDis = true;
        this.fiveDis = true;
        this.sixDis = true;
        this.sevenDis = true;
        this.eightDis = true;
        this.nineDis = true;
    }

    public void setOneDis(boolean oneDis) {
        this.oneDis = oneDis;
    }

    public boolean isOneDis() {
        return oneDis;
    }

    public void setTwoDis(boolean twoDis) {
        this.twoDis = twoDis;
    }

    public boolean isTwoDis() {
        return twoDis;
    }

    public void setThreeDis(boolean threeDis) {
        this.threeDis = threeDis;
    }

    public boolean isThreeDis() {
        return threeDis;
    }

    public void setFourDis(boolean fourDis) {
        this.fourDis = fourDis;
    }

    public boolean isFourDis() {
        return fourDis;
    }

    public void setFiveDis(boolean fiveDis) {
        this.fiveDis = fiveDis;
    }

    public boolean isFiveDis() {
        return fiveDis;
    }

    public void setSixDis(boolean sixDis) {
        this.sixDis = sixDis;
    }

    public boolean isSixDis() {
        return sixDis;
    }

    public void setSevenDis(boolean sevenDis) {
        this.sevenDis = sevenDis;
    }

    public boolean isSevenDis() {
        return sevenDis;
    }

    public void setEightDis(boolean eightDis) {
        this.eightDis = eightDis;
    }

    public boolean isEightDis() {
        return eightDis;
    }

    public void setNineDis(boolean nineDis) {
        this.nineDis = nineDis;
    }

    public boolean isNineDis() {
        return nineDis;
    }


}



• Download and Run this sample application-Sample ADF Application