de.richtercloud.jhbuild.java.wrapper.download

Class DownloadUtils

de.richtercloud.jhbuild.java.wrapper.download.DownloadUtils

public class DownloadUtils

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	MD5_SUM_CHECK_FAILED_ABORT
static java.lang.String	MD5_SUM_CHECK_FAILED_RETRY

Method Summary

Modifier and Type	Method and Description
static void	extractFile()
static SupportedOS	getCurrentOS()
static UbuntuVersion	getUbuntuVersion() Checks for the current version on Ubuntu systems in /etc/issue and parses the content into a UbuntuVersion or returns null if the operating system is not Ubuntu. This method returns null for Ubuntu versions which don't provide a /etc/issue file or whose issue files don't start with Ubuntu (checked that 14.04 to 18.10 are recognized correctly).
static WindowsBitness	getWindowsBitness() Windows lies about 64-bit systems in order to make 32-bit programs work on 64-bit systems. Taken from http://stackoverflow.com/questions/4748673/how-can-i-check-the-bitness-of-my-os-using-java-j2se-not-os-arch.
static UbuntuVersion	parseUbuntuVersion()

Field Detail

MD5_SUM_CHECK_FAILED_RETRY

public static java.lang.String MD5_SUM_CHECK_FAILED_RETRY

MD5_SUM_CHECK_FAILED_ABORT

public static java.lang.String MD5_SUM_CHECK_FAILED_ABORT

Method Detail

getWindowsBitness

public static WindowsBitness getWindowsBitness()

Windows lies about 64-bit systems in order to make 32-bit programs work on 64-bit systems. Taken from http://stackoverflow.com/questions/4748673/how-can-i-check-the-bitness-of-my-os-using-java-j2se-not-os-arch.

Returns:

WindowsBitness#WINDOWS_BITNESS_32 or WindowsBitness#WINDOWS_BITNESS_64

getCurrentOS

public static SupportedOS getCurrentOS()

getUbuntuVersion

public static UbuntuVersion getUbuntuVersion()

Checks for the current version on Ubuntu systems in /etc/issue and parses the content into a UbuntuVersion or returns null if the operating system is not Ubuntu. This method returns null for Ubuntu versions which don't provide a /etc/issue file or whose issue files don't start with Ubuntu (checked that 14.04 to 18.10 are recognized correctly).

Returns:

the parsing result of /etc/issue

Throws:

- if a low level I/O exception occurs while reading an existing /etc/issue

parseUbuntuVersion

public static UbuntuVersion parseUbuntuVersion()

extractFile

public static void extractFile()