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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: ConverterFactory.java,v $
* $Revision: 1.4 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
package org.openoffice.xmerge;
import org.openoffice.xmerge.util.registry.ConverterInfo;
import org.openoffice.xmerge.util.registry.ConverterInfoMgr;
/**
* Factory that provides access to <code>Convert</code> objects, which
* are used to do a conversion. The <code>ConvertFactory</code> does
* this via the <code>ConvertInfoMgr</code> which maintains a list of
* which <code>Convert</code> objects are available and their
* capabilities.
*
* @see Convert
* @see org.openoffice.xmerge.util.registry.ConverterInfoMgr
*
* @author Martin Maher
*/
public class ConverterFactory {
/**
* Confirms whether or not a particular conversion can be done
* based on the Mime types of the files to be converted to and
* from.
*
* @param mimeTypeIn The mime input type.
* @param mimeTypeOut The mime output type.
*
* @return true if the conversion is possible, false otherwise.
*/
public boolean canConvert(String mimeTypeIn, String mimeTypeOut) {
ConverterInfo foundInfo = null;
// findConverterInfo expects the second paramenter to be the
// destination MimeType
if (foundInfo.isValidOfficeType(mimeTypeOut))
foundInfo = ConverterInfoMgr.findConverterInfo(mimeTypeIn, mimeTypeOut);
else
foundInfo = ConverterInfoMgr.findConverterInfo(mimeTypeOut, mimeTypeIn);
if (foundInfo != null)
return true;
else
return false;
}
/**
* Returns the <code>Convert</code> object that converts
* the specified device/office mime type conversion. If there
* are multiple <code>Converter</code> objects registered
* that support this conversion, only the first is returned.
*
* @param mimeTypeIn The mime input type.
* @param mimeTypeOut The mime output type.
*
* @return The first <code>Convert</code> object that supports
* the specified conversion.
*/
public Convert getConverter(String mimeTypeIn, String mimeTypeOut) {
ConverterInfo foundInfo = null;
boolean toOffice;
toOffice = foundInfo.isValidOfficeType(mimeTypeOut);
// findConverterInfo expects the second paramenter to be the
// destination MimeType
if (toOffice)
foundInfo = ConverterInfoMgr.findConverterInfo(mimeTypeIn, mimeTypeOut);
else
foundInfo = ConverterInfoMgr.findConverterInfo(mimeTypeOut, mimeTypeIn);
if (foundInfo != null)
return getConverter(foundInfo, toOffice);
else
return null;
}
/**
* Returns the <code>Convert</code> object that is described
* by the <code>ConverterInfo</code> parameter.
*
* @param ci The <code>ConverterInfo</code> describing the converter.
*
* @param toOffice true to convert to office, false to convert to device.
*
* @return The <code>Convert</code> object
*/
public Convert getConverter(ConverterInfo ci, boolean toOffice) {
Convert myConvert = new Convert(ci, toOffice);
return myConvert;
}
}
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