| /************************************************************** |
| * |
| * 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.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; |
| } |
| } |
| |