001/* 002 * (C) Copyright 2006-2016 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 * 019 */ 020package org.nuxeo.ecm.core.convert.plugins.text.extractors; 021 022import java.io.File; 023import java.io.FileInputStream; 024import java.io.IOException; 025import java.io.InputStream; 026import java.io.Serializable; 027import java.util.Map; 028 029import javax.swing.text.BadLocationException; 030import javax.swing.text.Document; 031import javax.swing.text.rtf.RTFEditorKit; 032 033import org.nuxeo.common.utils.FileUtils; 034import org.nuxeo.ecm.core.api.Blob; 035import org.nuxeo.ecm.core.api.Blobs; 036import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 037import org.nuxeo.ecm.core.convert.api.ConversionException; 038import org.nuxeo.ecm.core.convert.cache.SimpleCachableBlobHolder; 039import org.nuxeo.ecm.core.convert.extension.Converter; 040import org.nuxeo.ecm.core.convert.extension.ConverterDescriptor; 041import org.nuxeo.runtime.api.Framework; 042 043public class RTF2TextConverter implements Converter { 044 045 @Override 046 public BlobHolder convert(BlobHolder blobHolder, Map<String, Serializable> parameters) throws ConversionException { 047 File f = null; 048 try { 049 RTFEditorKit rtfParser = new RTFEditorKit(); 050 Document document = rtfParser.createDefaultDocument(); 051 rtfParser.read(blobHolder.getBlob().getStream(), document, 0); 052 String text = document.getText(0, document.getLength()); 053 f = Framework.createTempFile("swing-rtf2text", ".txt"); 054 FileUtils.writeFile(f, text); 055 Blob blob; 056 try (InputStream in = new FileInputStream(f)) { 057 blob = Blobs.createBlob(in, "text/plain"); 058 } 059 return new SimpleCachableBlobHolder(blob); 060 } catch (IOException | BadLocationException e) { 061 throw new ConversionException("Error during Word2Text conversion", e); 062 } finally { 063 if (f != null) { 064 f.delete(); 065 } 066 } 067 } 068 069 @Override 070 public void init(ConverterDescriptor descriptor) { 071 } 072 073}