org.cloudcoder.daemon

Class Upgrade

java.lang.Object

org.cloudcoder.daemon.Upgrade

public class Upgrade
extends java.lang.Object

Upgrade a single-jarfile executable to the latest version, copying any needed configuration files into the new jarfile. Assumes that

• the jarfile has a file called VERSION in its root directory that contains the version string of the current jarfile
• the jarfile is named ${baseName}-${version}.jar, where ${version} is the version string in the VERSION file, and ${baseName} is some arbitrary base name (e.g., "cloudcoderApp")
• there is a file ${downloadUrl}/LATEST that contains the latest application version string
• that ${downloadUrl}/${baseName}-${latestVersion}.jar is the download for the latest version (where ${latestVersion} is the version string found in ${downloadUrl}/LATEST

Author:

David Hovemeyer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Upgrade.Callback Callback interface for upgrade events.

Constructor Summary

Constructors

Constructor and Description
Upgrade(java.lang.String baseName, java.lang.String downloadUrl, java.lang.Class<?> appCls) Constructor.

Method Summary

Modifier and Type	Method and Description
void	addConfigFile(java.lang.String configFile) Add the name of a configuration file that should be copied from the current jarfile to the upgraded jarfile.
void	upgradeJarFile(Upgrade.Callback callback) Get a jarfile that is the latest version of the application, copying over all required configuration files to the upgraded jar file.

Methods inherited from class java.lang.Object

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

Constructor Detail

Upgrade

public Upgrade(java.lang.String baseName,
               java.lang.String downloadUrl,
               java.lang.Class<?> appCls)

Constructor.

Parameters:

baseName - the app jarfile's expected base name

downloadUrl - the download URL

appCls - the main class of the application (which must be loaded from the jarfile that is being upgraded)

Method Detail

addConfigFile

public void addConfigFile(java.lang.String configFile)

Add the name of a configuration file that should be copied from the current jarfile to the upgraded jarfile. Useful for configuration properties, keystores, etc.

Parameters:

configFile - name of configuration file to copy from current jar file to upgraded jar file

upgradeJarFile

public void upgradeJarFile(Upgrade.Callback callback)

Get a jarfile that is the latest version of the application, copying over all required configuration files to the upgraded jar file.

Parameters:

callback - callback for status updates, error or success indication, etc.

Throws:

java.io.IOException - if the download or configuration fails