| /* |
| * 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.fonts.autodetect; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.apache.commons.io.DirectoryWalker; |
| import org.apache.commons.io.IOCase; |
| import org.apache.commons.io.filefilter.FileFilterUtils; |
| import org.apache.commons.io.filefilter.IOFileFilter; |
| import org.apache.commons.io.filefilter.WildcardFileFilter; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| import org.apache.fop.fonts.FontEventListener; |
| |
| /** |
| * Helps to autodetect/locate available operating system fonts. |
| */ |
| public class FontFileFinder extends DirectoryWalker implements FontFinder { |
| |
| /** logging instance */ |
| private final Log log = LogFactory.getLog(FontFileFinder.class); |
| |
| /** default depth limit of recursion when searching for font files **/ |
| public static final int DEFAULT_DEPTH_LIMIT = -1; |
| private final FontEventListener eventListener; |
| |
| /** |
| * Default constructor |
| * @param listener for throwing font related events |
| */ |
| public FontFileFinder(FontEventListener listener) { |
| this(DEFAULT_DEPTH_LIMIT, listener); |
| } |
| |
| /** |
| * Constructor |
| * @param depthLimit recursion depth limit |
| * @param listener for throwing font related events |
| */ |
| public FontFileFinder(int depthLimit, FontEventListener listener) { |
| super(getDirectoryFilter(), getFileFilter(), depthLimit); |
| eventListener = listener; |
| } |
| |
| /** |
| * Font directory filter. Currently ignores hidden directories. |
| * @return IOFileFilter font directory filter |
| */ |
| protected static IOFileFilter getDirectoryFilter() { |
| return FileFilterUtils.andFileFilter( |
| FileFilterUtils.directoryFileFilter(), |
| FileFilterUtils.notFileFilter(FileFilterUtils.prefixFileFilter(".")) |
| ); |
| } |
| |
| /** |
| * Font file filter. Currently searches for files with .ttf, .ttc, .otf, and .pfb extensions. |
| * @return IOFileFilter font file filter |
| */ |
| protected static IOFileFilter getFileFilter() { |
| return FileFilterUtils.andFileFilter( |
| FileFilterUtils.fileFileFilter(), |
| new WildcardFileFilter( |
| new String[] {"*.ttf", "*.otf", "*.pfb", "*.ttc"}, |
| IOCase.INSENSITIVE) |
| ); |
| } |
| |
| /** |
| * @param directory directory to handle |
| * @param depth recursion depth |
| * @param results collection |
| * @return whether directory should be handled |
| * {@inheritDoc} |
| */ |
| @Override |
| protected boolean handleDirectory(File directory, int depth, Collection results) { |
| return true; |
| } |
| |
| /** |
| * @param file file to handle |
| * @param depth recursion depth |
| * @param results collection |
| * {@inheritDoc} |
| */ |
| @Override |
| protected void handleFile(File file, int depth, Collection results) { |
| try { |
| // Looks Strange, but is actually recommended over just .URL() |
| results.add(file.toURI().toURL()); |
| } catch (MalformedURLException e) { |
| log.debug("MalformedURLException" + e.getMessage()); |
| } |
| } |
| |
| /** |
| * @param directory the directory being processed |
| * @param depth the current directory level |
| * @param results the collection of results objects |
| * {@inheritDoc} |
| */ |
| @Override |
| protected void handleDirectoryEnd(File directory, int depth, Collection results) { |
| if (log.isDebugEnabled()) { |
| log.debug(directory + ": found " + results.size() + " font" |
| + ((results.size() == 1) ? "" : "s")); |
| } |
| } |
| |
| /** |
| * Automagically finds a list of font files on local system |
| * |
| * @return List<URL> of font files |
| * @throws IOException io exception |
| * {@inheritDoc} |
| */ |
| public List<URL> find() throws IOException { |
| final FontDirFinder fontDirFinder; |
| final String osName = System.getProperty("os.name"); |
| if (osName.startsWith("Windows")) { |
| fontDirFinder = new WindowsFontDirFinder(); |
| } else { |
| if (osName.startsWith("Mac")) { |
| fontDirFinder = new MacFontDirFinder(); |
| } else { |
| fontDirFinder = new UnixFontDirFinder(); |
| } |
| } |
| List<File> fontDirs = fontDirFinder.find(); |
| List<URL> results = new java.util.ArrayList<URL>(); |
| for (File dir : fontDirs) { |
| super.walk(dir, results); |
| } |
| return results; |
| } |
| |
| /** |
| * Searches a given directory for font files |
| * |
| * @param dir directory to search |
| * @return list of font files |
| * @throws IOException thrown if an I/O exception of some sort has occurred |
| */ |
| public List<URL> find(String dir) throws IOException { |
| List<URL> results = new java.util.ArrayList<URL>(); |
| File directory = new File(dir); |
| if (!directory.isDirectory()) { |
| eventListener.fontDirectoryNotFound(this, dir); |
| } else { |
| super.walk(directory, results); |
| } |
| return results; |
| } |
| } |