org.apache.pdfbox.encoding.conversion.EncodingConversionManager Maven / Gradle / Ivy
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The Apache PDFBox library is an open source Java tool for working with PDF documents.
/*
* 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.apache.pdfbox.encoding.conversion;
import java.util.Iterator;
import java.util.HashMap;
/**
* EncodingConversionManager maintains relationship between PDF encoding name
* and respective EncodingConverter instance. Those PDF encoding name like
* GBK-EUC-H should be converted to java charset name before constructing a
* java string instance
*
* @author Pin Xue (http://www.pinxue.net), Holly Lee (holly.lee (at) gmail.com)
* @version $Revision: 1.0 $
*/
public class EncodingConversionManager
{
/**
* Mapping from PDF encoding name to EncodingConverter instance.
*/
private static HashMap encodingMap = new HashMap();
private EncodingConversionManager()
{
}
/**
* Initialize the encodingMap before anything calls us.
*/
static {
// Add CJK encodings to map
Iterator it = CJKEncodings.getEncodingIterator();
while ( it.hasNext() )
{
String encodingName = (String)(it.next());
encodingMap.put(encodingName, new CJKConverter(encodingName));
}
// If there is any other encoding conversions, please add it here.
}
/**
* Get converter from given encoding name. If no converted defined,
* a null is returned.
*
* @param encoding search for a converter for the given encoding name
* @return the converter for the given encoding name
*/
public static final EncodingConverter getConverter(String encoding)
{
return (EncodingConverter)(encodingMap.get(encoding));
}
}