/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.document.impl;
import org.apache.poi.openxml4j.exceptions.OpenXML4JRuntimeException;
import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.exoplatform.commons.utils.SecurityHelper;
import org.exoplatform.services.document.DocumentReadException;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import java.io.IOException;
import java.io.InputStream;
import java.security.PrivilegedAction;
import java.security.PrivilegedExceptionAction;
import java.util.Properties;
/**
* Created by The eXo Platform SAS A parser of Microsoft Word 2007 files (docx).
*
* @author <a href="mailto:phunghainam@gmail.com">Phung Hai Nam</a>
* @author Gennady Azarenkov
* @author <a href="mailto:nikolazius@gmail.com">Nikolay Zamosenchuk</a>
* @version $Id: MSXWordDocumentReader.java 34360 2009-07-22 23:58:59Z nzamosenchuk $
*
*/
public class MSXWordDocumentReader extends BaseDocumentReader
{
private static final Log LOG = ExoLogger.getLogger("exo.core.component.document.MSXWordDocumentReader");
/**
* @see org.exoplatform.services.document.DocumentReader#getMimeTypes()
*/
public String[] getMimeTypes()
{
//Supported document types:
// "application/vnd.openxmlformats-officedocument.wordprocessingml.document" - "x.docx"
// "application/vnd.openxmlformats-officedocument.wordprocessingml.template" - "x.dotx"
// "application/vnd.ms-word.document.macroenabled.12" - "x.docm"
// "application/vnd.ms-word.template.macroenabled.12" - "x.dotm"
return new String[]{"application/vnd.openxmlformats-officedocument.wordprocessingml.document",
"application/vnd.openxmlformats-officedocument.wordprocessingml.template",
"application/vnd.ms-word.document.macroenabled.12", "application/vnd.ms-word.template.macroenabled.12"};
}
/**
* Returns only a text from .docx file content.
*
* @param is an input stream with .docx file content.
* @return The string only with text from file content.
*/
public String getContentAsText(final InputStream is) throws IOException, DocumentReadException
{
if (is == null)
{
throw new IllegalArgumentException("InputStream is null.");
}
String text = "";
try
{
if (is.available() == 0)
{
return "";
}
XWPFDocument doc;
try
{
doc = SecurityHelper.doPrivilegedIOExceptionAction(new PrivilegedExceptionAction<XWPFDocument>()
{
public XWPFDocument run() throws Exception
{
return new XWPFDocument(is);
}
});
}
catch (IOException e)
{
throw new DocumentReadException("Can't open message.", e);
}
catch (OpenXML4JRuntimeException e)
{
throw new DocumentReadException("Can't open message.", e);
}
final XWPFWordExtractor extractor = new XWPFWordExtractor(doc);
text = SecurityHelper.doPrivilegedAction(new PrivilegedAction<String>()
{
public String run()
{
return extractor.getText();
}
});
}
finally
{
if (is != null)
{
try
{
is.close();
}
catch (IOException e)
{
if (LOG.isTraceEnabled())
{
LOG.trace("An exception occurred: " + e.getMessage());
}
}
}
}
return text.trim();
}
/**
* @see org.exoplatform.services.document.DocumentReader#getContentAsText(java.io.InputStream, java.lang.String)
*/
public String getContentAsText(InputStream is, String encoding) throws IOException, DocumentReadException
{
// Ignore encoding
return getContentAsText(is);
}
/**
* @see org.exoplatform.services.document.DocumentReader#getProperties(java.io.InputStream)
*/
public Properties getProperties(final InputStream is) throws IOException, DocumentReadException
{
POIPropertiesReader reader = new POIPropertiesReader();
reader.readDCProperties(SecurityHelper
.doPrivilegedIOExceptionAction(new PrivilegedExceptionAction<XWPFDocument>()
{
public XWPFDocument run() throws Exception
{
return new XWPFDocument(is);
}
}));
return reader.getProperties();
}
}