examples.postcard
Class Postcard

java.lang.Object
  examples.postcard.Postcard

All Implemented Interfaces:

Serializable

public class Postcard

extends Object

implements Serializable

Represents a postcard. This class is simply an aggregation of

• an int array, containing the RGB values of the image,
• the image's width,
• the image's height,
• a date,
• a location.

See Also:

Serialized Form

Nested Class Summary

(package private) class	Postcard.PrivilegedImageDecoding This privileged action decodes an image from a byte array.
(package private) class	Postcard.PrivilegedImageEncoding This privileged action stores an image into a byte array.

Field Summary

private Date	date_ Holds the date when the image was taken or obtained.
static int	DEFAULT_IMAGE_HEIGHT The heigth of the default image.
static int	DEFAULT_IMAGE_WIDTH The width of the default image.
private byte[]	imageData_ Holds the image.
private String	location_ Holds the location where the picture was taken or obtained.
private String	url_ Holds the server's URL where the picture was taken or obtained.

Constructor Summary

Postcard(BufferedImage image, String location, String url)
Stamps the given image in the upper right corner with the following information: current date and time server's ingate URL servers location name of the agent distingished name in the owner certificate The stamp is written in the lower left corner with white color.

Method Summary

private void	debug(Object debugInfo)
Date	getDate()
BufferedImage	getImage()
String	getLocation()
String	getURL()
private void	stampImage(BufferedImage img)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

imageData_

private byte[] imageData_

Holds the image. The data type is a work-around since BufferedImage is not serializable.

location_

private String location_

Holds the location where the picture was taken or obtained.

url_

private String url_

Holds the server's URL where the picture was taken or obtained.

date_

private Date date_

Holds the date when the image was taken or obtained.

DEFAULT_IMAGE_WIDTH

public static final int DEFAULT_IMAGE_WIDTH

The width of the default image. Any image loaded by other means, needs NOT to fit this size.

See Also:

Constant Field Values

DEFAULT_IMAGE_HEIGHT

public static final int DEFAULT_IMAGE_HEIGHT

The heigth of the default image. Any image loaded by other means needs NOT to fit this size.

See Also:

Constant Field Values

Constructor Detail

Postcard

public Postcard(BufferedImage image,
                String location,
                String url)

Stamps the given image in the upper right corner with the following information:

• current date and time
• server's ingate URL
• servers location
• name of the agent
• distingished name in the owner certificate

The stamp is written in the lower left corner with white color.

Method Detail

getDate

public Date getDate()

getImage

public BufferedImage getImage()

getLocation

public String getLocation()

getURL

public String getURL()

stampImage

private void stampImage(BufferedImage img)

debug

private void debug(Object debugInfo)