org.apache.fontbox.util.autodetect.WindowsFontDirFinder Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.fontbox.util.autodetect;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;
import org.apache.fontbox.util.Charsets;
/**
* FontFinder for native Windows platforms. This class is based on a class provided by Apache FOP. see
* org.apache.fop.fonts.autodetect.WindowsFontDirFinder
*/
public class WindowsFontDirFinder implements FontDirFinder
{
/**
* Attempts to read windir environment variable on windows (disclaimer: This is a bit dirty but seems to work
* nicely).
*/
private String getWinDir(String osName) throws IOException
{
Process process;
Runtime runtime = Runtime.getRuntime();
if (osName.startsWith("Windows 9"))
{
process = runtime.exec("command.com /c echo %windir%");
}
else
{
process = runtime.exec("cmd.exe /c echo %windir%");
}
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(
process.getInputStream(), Charsets.ISO_8859_1));
String winDir = bufferedReader.readLine();
bufferedReader.close();
return winDir;
}
/**
* {@inheritDoc}
*
* @return a list of detected font files
*/
@Override
public List find()
{
List fontDirList = new java.util.ArrayList();
String windir = null;
try
{
windir = System.getProperty("env.windir");
}
catch (SecurityException e)
{
// should continue if this fails
}
String osName = System.getProperty("os.name");
if (windir == null)
{
try
{
windir = getWinDir(osName);
}
catch (IOException e)
{
// should continue if this fails
}
catch (SecurityException e)
{
// should continue if this fails
}
}
File osFontsDir;
File psFontsDir;
if (windir != null && windir.length() > 2)
{
// remove any trailing '/'
if (windir.endsWith("/"))
{
windir = windir.substring(0, windir.length() - 1);
}
osFontsDir = new File(windir + File.separator + "FONTS");
if (osFontsDir.exists() && osFontsDir.canRead())
{
fontDirList.add(osFontsDir);
}
psFontsDir = new File(windir.substring(0, 2) + File.separator + "PSFONTS");
if (psFontsDir.exists() && psFontsDir.canRead())
{
fontDirList.add(psFontsDir);
}
}
else
{
String windowsDirName = osName.endsWith("NT") ? "WINNT" : "WINDOWS";
// look for true type font folder
for (char driveLetter = 'C'; driveLetter <= 'E'; driveLetter++)
{
osFontsDir = new File(driveLetter + ":" + File.separator + windowsDirName
+ File.separator + "FONTS");
try
{
if (osFontsDir.exists() && osFontsDir.canRead())
{
fontDirList.add(osFontsDir);
break;
}
}
catch (SecurityException e)
{
// should continue if this fails
}
}
// look for type 1 font folder
for (char driveLetter = 'C'; driveLetter <= 'E'; driveLetter++)
{
psFontsDir = new File(driveLetter + ":" + File.separator + "PSFONTS");
try
{
if (psFontsDir.exists() && psFontsDir.canRead())
{
fontDirList.add(psFontsDir);
break;
}
}
catch (SecurityException e)
{
// should continue if this fails
}
}
}
return fontDirList;
}
}