/*
* 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.pdmodel.font;
import org.apache.fontbox.cmap.CMap;
import org.apache.fontbox.cmap.CMapParser;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
/**
* CMap resource loader and cache.
*/
class CMapManager
{
protected static Map<String, CMap> cMapCache =
Collections.synchronizedMap(new HashMap<String, CMap>());
/**
* Fetches the predefined CMap from disk (or cache).
*
* @param cMapName CMap name
*/
public static CMap getPredefinedCMap(String cMapName) throws IOException
{
CMap cmap = cMapCache.get(cMapName);
if (cmap != null)
{
return cmap;
}
CMapParser parser = new CMapParser();
CMap targetCmap = parser.parsePredefined(cMapName);
// limit the cache to predefined CMaps
cMapCache.put(targetCmap.getName(), targetCmap);
return targetCmap;
}
/**
* Parse the given CMap.
*
* @param cMapStream the CMap to be read
* @return the parsed CMap
*/
public static CMap parseCMap(InputStream cMapStream) throws IOException
{
CMap targetCmap = null;
if (cMapStream != null)
{
CMapParser parser = new CMapParser();
targetCmap = parser.parse(cMapStream);
}
return targetCmap;
}
}