Package com.vaadin.pro.licensechecker

Class Util

java.lang.Object

com.vaadin.pro.licensechecker.Util

public class Util
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final int	EOF
static final DateTimeFormatter	TIMESTAMP_FORMAT	A DateTimeFormatter instance defining a standardized format for timestamps accepted by License Server.

Constructor Summary

Constructors

Constructor	Description
Util()

Method Summary

Modifier and Type	Method	Description
static long	copyLarge(InputStream input, OutputStream output, byte[] buffer)	From commons-io IOUtils.
static String	getHash(String content, byte[] salt, Charset charset)
static elemental.json.JsonObject	parseJson(int status, InputStream inputStream)	Parses a JSON response from an input stream and converts it into a JsonObject.
static String	removeTrailingSlash(String url)
static String	toString(InputStream in)
static String	validateURL(String url)

Methods inherited from class java.lang.Object

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

Field Details

TIMESTAMP_FORMAT

public static final DateTimeFormatter TIMESTAMP_FORMAT

A DateTimeFormatter instance defining a standardized format for timestamps accepted by License Server. This format is based on the ISO-8601 standard and enforced to use UTC as the time zone. Format Details: - Pattern: "yyyy-MM-dd'T'HH:mm:ss'Z'" - Time Zone: UTC

EOF

public static final int EOF

See Also:

• Constant Field Values

Constructor Details

Util

public Util()

Method Details

toString

public static String toString(InputStream in)
                       throws IOException

Throws:

IOException

copyLarge

public static long copyLarge(InputStream input,
 OutputStream output,
 byte[] buffer)
                      throws IOException

From commons-io IOUtils. Included to avoid external dependencies.

Throws:

IOException

getHash

public static String getHash(String content,
 byte[] salt,
 Charset charset)

removeTrailingSlash

public static String removeTrailingSlash(String url)

validateURL

public static String validateURL(String url)

parseJson

public static elemental.json.JsonObject parseJson(int status,
 InputStream inputStream)
                                           throws IOException

Parses a JSON response from an input stream and converts it into a JsonObject. Handles errors gracefully and ensures that certain server errors do not propagate sensitive information to the client application.

Parameters:

status - the HTTP status code of the server response

inputStream - the input stream containing the server's response

Returns:

a JsonObject parsed from the input stream

Throws:

IOException - if an I/O error occurs or if the JSON response cannot be parsed