/*
* 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.jackrabbit.extractor;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.rtf.RTFEditorKit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.Reader;
import java.io.InputStream;
import java.io.IOException;
import java.io.StringReader;
/**
* Text extractor for Rich Text Format (RTF)
*/
public class RTFTextExtractor extends AbstractTextExtractor {
/**
* Logger instance.
*/
private static final Logger logger =
LoggerFactory.getLogger(RTFTextExtractor.class);
/**
* Creates a new <code>RTFTextExtractor</code> instance.
*/
public RTFTextExtractor() {
super(new String[]{"application/rtf", "text/rtf"});
}
//-------------------------------------------------------< TextExtractor >
/**
* {@inheritDoc}
*/
public Reader extractText(InputStream stream,
String type,
String encoding) throws IOException {
try {
RTFEditorKit rek = new RTFEditorKit();
DefaultStyledDocument doc = new DefaultStyledDocument();
rek.read(stream, doc, 0);
String text = doc.getText(0, doc.getLength());
return new StringReader(text);
} catch (BadLocationException e) {
logger.warn("Failed to extract RTF text content", e);
return new StringReader("");
} finally {
stream.close();
}
}
}