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/*
* IzPack - Copyright 2001-2012 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.izforge.izpack.panels.packs;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;
import com.izforge.izpack.api.adaptator.IXMLElement;
import com.izforge.izpack.api.data.InstallData;
import com.izforge.izpack.api.data.Pack;
import com.izforge.izpack.api.exception.ResourceNotFoundException;
import com.izforge.izpack.api.handler.Prompt;
import com.izforge.izpack.api.handler.Prompt.Option;
import com.izforge.izpack.api.handler.Prompt.Options;
import com.izforge.izpack.api.handler.Prompt.Type;
import com.izforge.izpack.api.resource.Messages;
import com.izforge.izpack.api.resource.Resources;
import com.izforge.izpack.installer.console.AbstractConsolePanel;
import com.izforge.izpack.installer.console.ConsolePanel;
import com.izforge.izpack.installer.panel.PanelView;
import com.izforge.izpack.installer.util.PackHelper;
import com.izforge.izpack.util.Console;
/**
* Console implementation for the TreePacksPanel.
*
* Based on PacksConsolePanelHelper
*
* @author Sergiy Shyrkov
* @author Dustin Kut Moy Cheung
*/
public class PacksConsolePanel extends AbstractConsolePanel implements ConsolePanel
{
private Messages messages;
private HashMap names;
private List selectedPacks;
private final Prompt prompt;
private final InstallData installData;
public PacksConsolePanel(PanelView panel, InstallData installData, Prompt prompt)
{
super(panel);
this.prompt = prompt;
this.installData = installData;
//load the packs lang messages if exists
try
{
messages = installData.getMessages().newMessages(Resources.PACK_TRANSLATIONS_RESOURCE_NAME);
}
catch (ResourceNotFoundException exception)
{
// no packs messages resource, so fall back to the default
messages = installData.getMessages();
}
}
/**
* Runs the panel using the supplied properties.
*
* @param installData the installation data
* @param properties the properties
* @return true if the installation is successful, otherwise false
*/
@Override
public boolean run(InstallData installData, Properties properties)
{
return true;
}
/**
* Runs the panel using the specified console.
*
* @param installData the installation data
* @param console the console
* @return true if the panel ran successfully, otherwise false
*/
@Override
public boolean run(InstallData installData, Console console)
{
printHeadLine(installData, console);
out(Type.INFORMATION, installData.getMessages().get("PacksPanel.info"));
out(Type.INFORMATION, "");
List availablePacks = installData.getAvailablePacks();
computePacks(availablePacks);
if (selectedPacks == null)
{
selectedPacks = new LinkedList();
for (Pack pack : availablePacks)
{
if (!pack.isHidden())
{
// Initially, add all available packs by default
selectedPacks.add(pack);
}
}
}
// private HashMap names;
for (String key : names.keySet())
{
drawHelper(key, selectedPacks, installData);
}
out(Type.INFORMATION, "Done!");
installData.setSelectedPacks(selectedPacks);
if (selectedPacks.size() == 0)
{
out(Type.WARNING, "You have not selected any packs!");
return promptRerunPanel(installData, console);
}
return promptEndPanel(installData, console);
}
private void out(Type type, String message)
{
prompt.message(type, message);
}
/**
* It is used to "draw" the appropriate tree-like structure of the packs and ask if you want to install
* the pack. The pack will automatically be selected if it is required; otherwise you will be prompted if
* you want to install that pack. If a pack is not selected, then their child packs won't be installed as
* well and you won't be prompted to install them.
*
* @param pack - the pack to install
* @param selectedPacks - the packs that are selected by the user are added there
* @param installData - Database of izpack
*/
private void drawHelper(final String pack, final List selectedPacks, final InstallData installData)
{
Pack p = names.get(pack);
Boolean conditionSatisfied = checkCondition(installData, p);
//get the pack localized name
String packName = PackHelper.getPackName(p, messages);
final boolean required = p.isRequired();
final boolean packConditionTrue = conditionSatisfied == null || conditionSatisfied.booleanValue();
if (packConditionTrue)
{
// Pack 'condition' not set or 'condition' evaluates true
if (required)
{
// Force selecting the pack
out(Type.INFORMATION, " [x] Pack '" + packName + "' required");
}
else
{
boolean contained = selectedPacks.contains(p);
String cbView = contained ? "x" : " ";
if (askUser(" ["+ cbView +"] Include optional pack '" + packName + "'", (contained ? Option.YES : Option.NO)))
{
if (!contained)
{
selectedPacks.add(p);
}
}
else
{
if (contained)
{
selectedPacks.remove(p);
}
}
}
}
else
{
// Force not selecting the pack
selectedPacks.remove(p);
out(Type.INFORMATION, " [ ] Pack '" + packName + "' not enabled");
}
}
/**
* helper method to know if the condition assigned to the pack is satisfied
*
* @param installData - the data of izpack
* @param pack - the pack whose condition needs to be checked·
* @return true - if the condition is satisfied
* false - if condition not satisfied
* null - if no condition assigned
*/
private Boolean checkCondition(InstallData installData, Pack pack)
{
if (pack.hasCondition())
{
return installData.getRules().isConditionTrue(pack.getCondition());
}
else
{
return null;
}
}
/**
* Helper method to read the input of user
* Method returns true if user types "y", "yes" or ·
*
* @return boolean - true if condition above satisfied. Otherwise false
*/
private boolean askUser(String message, Option defaultOption)
{
return Option.YES == prompt.confirm(Type.QUESTION, message, Options.YES_NO, defaultOption);
}
/**
* Computes pack related installDataGUI like the names or the dependencies state.
*
* @param packs The list of packs.
*/
private void computePacks(List packs)
{
names = new LinkedHashMap();
for (Pack pack : packs)
{
names.put(pack.getName(), pack);
}
}
@Override
public void createInstallationRecord(IXMLElement panelRoot)
{
new PacksPanelAutomationHelper().createInstallationRecord(installData, panelRoot);
}
}
