001/* 002 * (C) Copyright 2002-2007 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 * 017 */ 018package org.nuxeo.ecm.core.convert.plugins.text.extractors; 019 020import java.io.File; 021import java.io.FileInputStream; 022import java.io.IOException; 023import java.io.InputStream; 024import java.io.Serializable; 025import java.util.Map; 026 027import javax.swing.text.BadLocationException; 028import javax.swing.text.Document; 029import javax.swing.text.rtf.RTFEditorKit; 030 031import org.nuxeo.common.utils.FileUtils; 032import org.nuxeo.ecm.core.api.Blob; 033import org.nuxeo.ecm.core.api.Blobs; 034import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 035import org.nuxeo.ecm.core.convert.api.ConversionException; 036import org.nuxeo.ecm.core.convert.cache.SimpleCachableBlobHolder; 037import org.nuxeo.ecm.core.convert.extension.Converter; 038import org.nuxeo.ecm.core.convert.extension.ConverterDescriptor; 039 040public class RTF2TextConverter implements Converter { 041 042 @Override 043 public BlobHolder convert(BlobHolder blobHolder, Map<String, Serializable> parameters) throws ConversionException { 044 045 File f = null; 046 try { 047 RTFEditorKit rtfParser = new RTFEditorKit(); 048 Document document = rtfParser.createDefaultDocument(); 049 rtfParser.read(blobHolder.getBlob().getStream(), document, 0); 050 String text = document.getText(0, document.getLength()); 051 f = File.createTempFile("swing-rtf2text", ".txt"); 052 FileUtils.writeFile(f, text); 053 Blob blob; 054 try (InputStream in = new FileInputStream(f)) { 055 blob = Blobs.createBlob(in, "text/plain"); 056 } 057 return new SimpleCachableBlobHolder(blob); 058 } catch (IOException | BadLocationException e) { 059 throw new ConversionException("Error during Word2Text conversion", e); 060 } finally { 061 if (f != null) { 062 f.delete(); 063 } 064 } 065 } 066 067 @Override 068 public void init(ConverterDescriptor descriptor) { 069 } 070 071}