com.izforge.izpack.installer.multiunpacker
Class MultiVolumeUnpacker

java.lang.Object
  com.izforge.izpack.installer.unpacker.UnpackerBase
      com.izforge.izpack.installer.multiunpacker.MultiVolumeUnpacker

All Implemented Interfaces:

IUnpacker, Runnable

public class MultiVolumeUnpacker
extends UnpackerBase

Unpacker class for a multi volume installation.

Author:

Dennis Reil, , Tim Anderson

Field Summary

Fields inherited from class com.izforge.izpack.installer.unpacker.UnpackerBase

RESOURCES_PATH

Constructor Summary

MultiVolumeUnpacker(InstallData installData, PackResources resources, RulesEngine rules, VariableSubstitutor variableSubstitutor, UninstallData uninstallData, FileQueueFactory queue, Housekeeper housekeeper, InstallerListeners listeners, Prompt prompt, VolumeLocator locator, PlatformModelMatcher matcher)
Constructs a MultiVolumeUnpacker.

Method Summary

protected void	cleanup() Invoked after unpacking has completed, in order to clean up.
protected FileUnpacker	createFileUnpacker(PackFile file, Pack pack, FileQueue queue, Cancellable cancellable) Creates an unpacker to unpack a pack file.
protected void	preUnpack(List<Pack> packs) Invoked prior to unpacking.
protected void	skip(InputStream stream, long bytes) Skips bytes in a stream.
protected void	skip(PackFile file, Pack pack, InputStream packInputStream) Skips a pack file.

Methods inherited from class com.izforge.izpack.installer.unpacker.UnpackerBase

checkInterrupt, createDirectory, extract, getInstallData, getPrompt, getResources, getResult, getStepName, getUninstallData, getVariableSubstitutor, handleOverrideRename, interrupt, isConditionTrue, isInterruptDisabled, isInterrupted, isOverwriteFile, performUpdateChecks, postUnpack, readExecutableFiles, readParsableFiles, readUpdateChecks, run, setDisableInterrupt, setProgressListener, setResult, shouldUnpack, unpack, unpack, unpack, unpack, writeInstallationInformation

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiVolumeUnpacker

public MultiVolumeUnpacker(InstallData installData,
                           PackResources resources,
                           RulesEngine rules,
                           VariableSubstitutor variableSubstitutor,
                           UninstallData uninstallData,
                           FileQueueFactory queue,
                           Housekeeper housekeeper,
                           InstallerListeners listeners,
                           Prompt prompt,
                           VolumeLocator locator,
                           PlatformModelMatcher matcher)

Constructs a MultiVolumeUnpacker.

Parameters:

installData - the installation data

resources - the pack resources

rules - the rules engine

variableSubstitutor - the variable substituter

uninstallData - the uninstallation data

queue - the queue

housekeeper - the housekeeper

listeners - the listeners

prompt - the prompt

locator - the multi-volume locator

matcher - the platform-model matcher

Method Detail

preUnpack

protected void preUnpack(List<Pack> packs)

Invoked prior to unpacking.

This notifies the ProgressListener, and any registered listeners.

Overrides:

preUnpack in class UnpackerBase

Parameters:

packs - the packs to unpack

Throws:

IzPackException - for any error

createFileUnpacker

protected FileUnpacker createFileUnpacker(PackFile file,
                                          Pack pack,
                                          FileQueue queue,
                                          Cancellable cancellable)
                                   throws InstallerException

Creates an unpacker to unpack a pack file.

Overrides:

createFileUnpacker in class UnpackerBase

Parameters:

file - the pack file to unpack

pack - the parent pack

queue - the file queue. May be null

cancellable - determines if the unpacker should be cancelled

Returns:

the unpacker

Throws:

InstallerException - for any installer error

skip

protected void skip(PackFile file,
                    Pack pack,
                    InputStream packInputStream)
             throws IOException

Description copied from class: UnpackerBase

Skips a pack file.

Overrides:

skip in class UnpackerBase

Parameters:

file - the pack file

pack - the pack

packInputStream - the pack stream

Throws:

IOException - if the file cannot be skipped

skip

protected void skip(InputStream stream,
                    long bytes)
             throws IOException

Description copied from class: UnpackerBase

Skips bytes in a stream.

Overrides:

skip in class UnpackerBase

Parameters:

stream - the stream

bytes - the no. of bytes to skip

Throws:

IOException - for any I/O error, or if the no. of bytes skipped doesn't match that expected

cleanup

protected void cleanup()

Description copied from class: UnpackerBase

Invoked after unpacking has completed, in order to clean up.

Overrides:

cleanup in class UnpackerBase