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/*
* IzPack - Copyright 2001-2008 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Copyright 2004 Klaus Bartz
*
* 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;
import com.izforge.izpack.gui.IzPanelLayout;
import com.izforge.izpack.installer.*;
import com.izforge.izpack.util.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.*;
/**
* Base class for panels which asks for paths.
*
* @author Klaus Bartz
*/
public class PathInputPanel extends IzPanel implements ActionListener
{
/**
*
*/
private static final long serialVersionUID = 3257566217698292531L;
/**
* Flag whether the choosen path must exist or not
*/
protected boolean mustExist = false;
/**
* Files which should be exist
*/
protected String[] existFiles = null;
/** The path which was chosen */
// protected String chosenPath;
/**
* The path selection sub panel
*/
protected PathSelectionPanel pathSelectionPanel;
protected String emptyTargetMsg;
protected String warnMsg;
protected static String defaultInstallDir = null;
/**
* The constructor.
*
* @param parent The parent window.
* @param idata The installation data.
*/
public PathInputPanel(InstallerFrame parent, InstallData idata)
{
super(parent, idata, new IzPanelLayout());
// Set default values
emptyTargetMsg = getI18nStringForClass("empty_target", "TargetPanel");
warnMsg = getI18nStringForClass("warn", "TargetPanel");
String introText = getI18nStringForClass("extendedIntro", "PathInputPanel");
if (introText == null || introText.endsWith("extendedIntro")
|| introText.indexOf('$') > -1)
{
introText = getI18nStringForClass("intro", "PathInputPanel");
if (introText == null || introText.endsWith("intro"))
{
introText = "";
}
}
// Intro
// row 0 column 0
add(createMultiLineLabel(introText));
add(IzPanelLayout.createParagraphGap());
// Label for input
// row 1 column 0.
add(createLabel("info", "TargetPanel", "open",
LEFT, true), NEXT_LINE);
// Create path selection components and add they to this panel.
pathSelectionPanel = new PathSelectionPanel(this, idata);
add(pathSelectionPanel, NEXT_LINE);
createLayoutBottom();
getLayoutHelper().completeLayout();
}
/**
* This method does nothing. It is called from ctor of PathInputPanel, to give in a derived
* class the possibility to add more components under the path input components.
*/
public void createLayoutBottom()
{
// Derived classes implements additional elements.
}
/**
* Actions-handling method.
*
* @param e The event.
*/
public void actionPerformed(ActionEvent e)
{
Object source = e.getSource();
if (source == pathSelectionPanel.getPathInputField())
{
parent.navigateNext();
}
}
/**
* Indicates wether the panel has been validated or not.
*
* @return Wether the panel has been validated or not.
*/
public boolean isValidated()
{
String chosenPath = pathSelectionPanel.getPath();
boolean ok = true;
boolean modifyinstallation = Boolean.valueOf(idata.getVariable(InstallData.MODIFY_INSTALLATION));
if (modifyinstallation)
{
// installation directory has to exist in a modification installation
mustExist = true;
File installationinformation = new File(pathSelectionPanel.getPath() + File.separator + AutomatedInstallData.INSTALLATION_INFORMATION);
if (!installationinformation.exists())
{
emitError(parent.langpack.getString("installer.error"), parent.langpack.getString("PathInputPanel.required.forModificationInstallation"));
return false;
}
}
// We put a warning if the specified target is nameless
if (chosenPath.length() == 0)
{
if (isMustExist())
{
emitError(parent.langpack.getString("installer.error"), parent.langpack
.getString("PathInputPanel.required"));
return false;
}
ok = emitWarning(parent.langpack.getString("installer.warning"), emptyTargetMsg);
}
if (!ok)
{
return ok;
}
// Expand unix home reference
if (chosenPath.startsWith("~"))
{
String home = System.getProperty("user.home");
chosenPath = home + chosenPath.substring(1);
}
// Normalize the path
File path = new File(chosenPath).getAbsoluteFile();
chosenPath = path.toString();
pathSelectionPanel.setPath(chosenPath);
if (isMustExist())
{
if (!path.exists())
{
emitError(parent.langpack.getString("installer.error"), parent.langpack
.getString(getI18nStringForClass("required", "PathInputPanel")));
return false;
}
if (!pathIsValid())
{
emitError(parent.langpack.getString("installer.error"), parent.langpack
.getString(getI18nStringForClass("notValid", "PathInputPanel")));
return false;
}
}
else
{
// We assume, that we would install something into this dir
if (!isWriteable())
{
emitError(parent.langpack.getString("installer.error"), getI18nStringForClass(
"notwritable", "TargetPanel"));
return false;
}
// We put a warning if the directory exists else we warn
// that it will be created
if (path.exists())
{
int res = askQuestion(parent.langpack.getString("installer.warning"), warnMsg,
AbstractUIHandler.CHOICES_YES_NO, AbstractUIHandler.ANSWER_YES);
ok = res == AbstractUIHandler.ANSWER_YES;
}
else
{
ok = this.emitNotificationFeedback(getI18nStringForClass("createdir", "TargetPanel") + "\n"
+ chosenPath);
}
}
return ok;
}
/**
* Returns whether the chosen path is true or not. If existFiles are not null, the existence of
* it under the choosen path are detected. This method can be also implemented in derived
* classes to handle special verification of the path.
*
* @return true if existFiles are exist or not defined, else false
*/
protected boolean pathIsValid()
{
if (existFiles == null)
{
return true;
}
for (String existFile : existFiles)
{
File path = new File(pathSelectionPanel.getPath(), existFile).getAbsoluteFile();
if (!path.exists())
{
return false;
}
}
return true;
}
/**
* Returns the must exist state.
*
* @return the must exist state
*/
public boolean isMustExist()
{
return mustExist;
}
/**
* Sets the must exist state. If it is true, the path must exist.
*
* @param b must exist state
*/
public void setMustExist(boolean b)
{
mustExist = b;
}
/**
* Returns the array of strings which are described the files which must exist.
*
* @return paths of files which must exist
*/
public String[] getExistFiles()
{
return existFiles;
}
/**
* Sets the paths of files which must exist under the chosen path.
*
* @param strings paths of files which must exist under the chosen path
*/
public void setExistFiles(String[] strings)
{
existFiles = strings;
}
/**
* Loads up the "dir" resource associated with TargetPanel. Acceptable dir resource names:
*
* TargetPanel.dir.macosx
* TargetPanel.dir.mac
* TargetPanel.dir.windows
* TargetPanel.dir.unix
* TargetPanel.dir.xxx,
* where xxx is the lower case version of System.getProperty("os.name"),
* with any spaces replace with underscores
* TargetPanel.dir (generic that will be applied if none of above is found)
*
* As with all IzPack resources, each the above ids should be associated with a separate
* filename, which is set in the install.xml file at compile time.
*/
public static void loadDefaultInstallDir(InstallerFrame parentFrame, InstallData idata)
{
// Load only once ...
if (getDefaultInstallDir() != null)
{
return;
}
BufferedReader br = null;
try
{
InputStream in = null;
if (OsVersion.IS_WINDOWS)
{
try
{
in = parentFrame.getResource("TargetPanel.dir.windows");
}
catch (ResourceNotFoundException rnfe)
{
}//it's usual, that the resource does not exist
}
else if (OsVersion.IS_OSX)
{
try
{
in = parentFrame.getResource("TargetPanel.dir.macosx");
}
catch (ResourceNotFoundException rnfe)
{
}//it's usual, that the resource does not exist
}
else
{
String os = System.getProperty("os.name");
// first try to look up by specific os name
os = os.replace(' ', '_'); // avoid spaces in file names
os = os.toLowerCase(); // for consistency among TargetPanel res
// files
try
{
in = parentFrame.getResource("TargetPanel.dir.".concat(os));
}
catch (ResourceNotFoundException rnfe)
{
}
// if not specific os, try getting generic 'unix' resource file
if (in == null)
{
try
{
in = parentFrame.getResource("TargetPanel.dir.unix");
}
catch (ResourceNotFoundException eee)
{
}
}
}
// if all above tests failed, there is no resource file,
// so use system default
if (in == null)
{
try
{
in = parentFrame.getResource("TargetPanel.dir");
}
catch (ResourceNotFoundException eee)
{
}
}
if (in != null)
{
// now read the file, once we've identified which one to read
InputStreamReader isr = new InputStreamReader(in);
br = new BufferedReader(isr);
String line;
while ((line = br.readLine()) != null)
{
line = line.trim();
// use the first non-blank line
if (!"".equals(line))
{
break;
}
}
defaultInstallDir = line;
VariableSubstitutor vs = new VariableSubstitutor(idata.getVariables());
defaultInstallDir = vs.substitute(defaultInstallDir, null);
}
}
catch (Exception e)
{
//mar: what's the common way to log an exception ?
e.printStackTrace();
defaultInstallDir = null;
// leave unset to take the system default set by Installer class
}
finally
{
try
{
if (br != null)
{
br.close();
}
}
catch (IOException ignored)
{
}
}
}
/**
* This method determines whether the chosen dir is writeable or not.
*
* @return whether the chosen dir is writeable or not
*/
public boolean isWriteable()
{
File existParent = IoHelper.existingParent(new File(pathSelectionPanel.getPath()));
if (existParent == null)
{
return false;
}
// On windows we cannot use canWrite because
// it looks to the dos flags which are not valid
// on NT or 2k XP or ...
if (OsVersion.IS_WINDOWS)
{
File tmpFile;
try
{
tmpFile = File.createTempFile("izWrTe", ".tmp", existParent);
tmpFile.deleteOnExit();
}
catch (IOException e)
{
Debug.trace(e.toString());
return false;
}
return true;
}
return existParent.canWrite();
}
/**
* Returns the default for the installation directory.
*
* @return the default for the installation directory
*/
public static String getDefaultInstallDir()
{
return defaultInstallDir;
}
/**
* Sets the default for the installation directory to the given string.
*
* @param string path for default for the installation directory
*/
public static void setDefaultInstallDir(String string)
{
defaultInstallDir = string;
}
}
