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- /*
- * 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;
-
- import java.io.File;
- import java.io.IOException;
- import java.net.URI;
- import java.net.URISyntaxException;
- import java.net.URL;
- import java.util.List;
-
- import org.apache.commons.io.FileUtils;
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
-
- import org.apache.xmlgraphics.util.ClasspathResource;
-
- import org.apache.fop.apps.FOPException;
- import org.apache.fop.fonts.autodetect.FontFileFinder;
- import org.apache.fop.util.LogUtil;
-
- /**
- * A factory that provides the font detecting machanism.
- */
- public final class FontDetectorFactory {
- private FontDetectorFactory() {
- }
-
- /**
- * Creates the default font detector
- * @return the default font detector
- */
- public static FontDetector createDefault() {
- return new DefaultFontDetector();
- }
-
- /**
- * Creates a disabled font detector which, by definition, does nothing to detect fonts.
- * @return the completely restricted font detector
- */
- public static FontDetector createDisabled() {
- return new DisabledFontDetector();
- }
-
-
- private static class DisabledFontDetector implements FontDetector {
- public void detect(FontManager fontManager, FontAdder fontAdder, boolean strict,
- FontEventListener eventListener, List<EmbedFontInfo> fontInfoList)
- throws FOPException {
- // nop
- }
- }
-
- /**
- * Detector of operating system and classpath fonts
- */
- private static class DefaultFontDetector implements FontDetector {
- private static Log log = LogFactory.getLog(DefaultFontDetector.class);
-
- private static final String[] FONT_MIMETYPES = {
- "application/x-font", "application/x-font-truetype"
- };
-
- /**
- * Detect installed fonts on the system
- * @param fontInfoList a list of fontinfo to populate
- * @throws FOPException thrown if a problem occurred during detection
- */
- public void detect(FontManager fontManager, FontAdder fontAdder, boolean strict,
- FontEventListener eventListener, List<EmbedFontInfo> fontInfoList)
- throws FOPException {
- try {
- // search in font base if it is defined and
- // is a directory but don't recurse
- FontFileFinder fontFileFinder = new FontFileFinder(eventListener);
- URI fontBaseURI = fontManager.getResourceResolver().getBaseURI();
- File fontBase = FileUtils.toFile(fontBaseURI.toURL());
- if (fontBase != null) {
- List<URL> fontURLList = fontFileFinder.find(fontBase.getAbsolutePath());
- fontAdder.add(fontURLList, fontInfoList);
-
- //Can only use the font base URL if it's a file URL
- }
-
- // native o/s font directory finding
- List<URL> systemFontList;
- systemFontList = fontFileFinder.find();
- fontAdder.add(systemFontList, fontInfoList);
-
- // classpath font finding
- ClasspathResource resource = ClasspathResource.getInstance();
- for (String mimeTypes : FONT_MIMETYPES) {
- fontAdder.add(resource.listResourcesOfMimeType(mimeTypes), fontInfoList);
- }
- } catch (IOException e) {
- LogUtil.handleException(log, e, strict);
- } catch (URISyntaxException use) {
- LogUtil.handleException(log, use, strict);
- }
- }
- }
- }
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