Package org.ka2ddo.yaac.gui

Class UpgradeLauncher

java.lang.Object

org.ka2ddo.yaac.gui.UpgradeLauncher

public class UpgradeLauncher
extends Object

This class provides services to:

• test if the currently running version of YAAC is out-of-date,
• download a new distribution of YAAC, start the upgrader utility, and shut down this instance of YAAC,
• remove the used new distribution file once the new instance is started.

Author:

Andrew Pavlin, KA2DDO

Field Summary

Fields

Modifier and Type	Field	Description
static final org.ka2ddo.yaac.gui.UpgradeLauncher.JavaExeFilter	JAVA_EXE_FILTER

Constructor Summary

Constructors

Constructor	Description
UpgradeLauncher()

Method Summary

Modifier and Type	Method	Description
static void	checkForUpdates(boolean interactive)	Check whether a newer release of YAAC and/or the currently used plugins is available, displaying status.
static boolean	downloadNewReleases(List<Provider> providerList, String[] versions, String protocol, int numNeedsUpgrade, String[] pluginDistroName, String[] pluginDistroType, boolean useSourceForge)	Download the distributions of the new versions of YAAC and/or the supported plugins in a place expected by the upgrade.jar program.
static File	getInstallRootDirectory()	Locate the directory where YAAC is installed.
static void	transferToLauncher()	Start up the upgrader.jar program and shut down YAAC to get it out of the way.

Methods inherited from class java.lang.Object

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

Field Details

JAVA_EXE_FILTER

public static final org.ka2ddo.yaac.gui.UpgradeLauncher.JavaExeFilter JAVA_EXE_FILTER

Constructor Details

UpgradeLauncher

public UpgradeLauncher()

Method Details

checkForUpdates

public static void checkForUpdates(boolean interactive)

Check whether a newer release of YAAC and/or the currently used plugins is available, displaying status. Note this method should be run in a separate thread from the GUI thread, as it may take a while to collect the information needed to report the results (especially if clicked on a system that is offline from the Internet and therefore will have to wait for network timeouts to confirm that it can't find out its upgrade status).

Parameters:

interactive - boolean true if no-upgrade-needed status should be reported (out-of-date status is always reported)

getInstallRootDirectory

public static File getInstallRootDirectory()

Locate the directory where YAAC is installed.

Returns:

File of the YAAC installation directory

downloadNewReleases

public static boolean downloadNewReleases(List<Provider> providerList,
 String[] versions,
 String protocol,
 int numNeedsUpgrade,
 String[] pluginDistroName,
 String[] pluginDistroType,
 boolean useSourceForge)

Download the distributions of the new versions of YAAC and/or the supported plugins in a place expected by the upgrade.jar program.

Parameters:

providerList - List of Provider objects currently installed in YAAC, providing their currently installed version numbers

versions - String array of versions of available upgrades for the Providers in the providerList in the same order (null version string if not available for upgrade)

protocol - String of URL schema (protocol) to use

numNeedsUpgrade - number of elements in the providerList that are candidates for upgrade (newer versions available)

pluginDistroName - String base name of the distribution file for YAAC or a plugin

pluginDistroType - String file type of the distribution file for YAAC or a plugin

useSourceForge - boolean true if the SourceForge repository should be used as a download source @return boolean true if download succeeded for at least one upgradable file

Returns:

boolean true if new software was successfully downloaded

transferToLauncher

public static void transferToLauncher()
                               throws IOException

Start up the upgrader.jar program and shut down YAAC to get it out of the way.

Throws:

IOException - if upgrade.jar could not be started or YAAC wouldn't shut down