/*
* 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.tika.parser.font;
import java.awt.Font;
import java.awt.FontFormatException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collections;
import java.util.Set;
import org.apache.fontbox.ttf.TTFParser;
import org.apache.fontbox.ttf.TrueTypeFont;
import org.apache.tika.exception.TikaException;
import org.apache.tika.io.TikaInputStream;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.metadata.TikaCoreProperties;
import org.apache.tika.mime.MediaType;
import org.apache.tika.parser.AbstractParser;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.sax.XHTMLContentHandler;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
/**
* Parser for TrueType font files (TTF).
*/
public class TrueTypeParser extends AbstractParser {
/** Serial version UID */
private static final long serialVersionUID = 44788554612243032L;
private static final MediaType TYPE =
MediaType.application("x-font-ttf");
private static final Set<MediaType> SUPPORTED_TYPES =
Collections.singleton(TYPE);
public Set<MediaType> getSupportedTypes(ParseContext context) {
return SUPPORTED_TYPES;
}
public void parse(
InputStream stream, ContentHandler handler,
Metadata metadata, ParseContext context)
throws IOException, SAXException, TikaException {
TikaInputStream tis = TikaInputStream.cast(stream);
// Until PDFBOX-1749 is fixed, if we can, use AWT to verify
// that the file is valid (otherwise FontBox could hang)
// See TIKA-1182 for details
if (tis != null) {
try {
if (tis.hasFile()) {
Font.createFont(Font.TRUETYPE_FONT, tis.getFile());
} else {
tis.mark(0);
Font.createFont(Font.TRUETYPE_FONT, stream);
tis.reset();
}
} catch (FontFormatException ex) {
throw new TikaException("Bad TrueType font.");
}
}
// Ask FontBox to parse the file for us
TrueTypeFont font;
TTFParser parser = new TTFParser();
if (tis != null && tis.hasFile()) {
font = parser.parseTTF(tis.getFile());
} else {
font = parser.parseTTF(stream);
}
// Report the details of the font
metadata.set(Metadata.CONTENT_TYPE, TYPE.toString());
metadata.set(TikaCoreProperties.CREATED, font.getHeader().getCreated().getTime());
metadata.set(
TikaCoreProperties.MODIFIED,
font.getHeader().getModified().getTime());
XHTMLContentHandler xhtml = new XHTMLContentHandler(handler, metadata);
xhtml.startDocument();
xhtml.endDocument();
}
}