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iText, a free Java-PDF library
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/*
 * $Id: CMapCache.java 5195 2012-06-18 14:25:30Z blowagie $
 *
 * This file is part of the iText (R) project.
 * Copyright (c) 1998-2012 1T3XT BVBA
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT,
 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * This program 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: [email protected]
 */
package com.itextpdf.text.pdf.fonts.cmaps;

import java.io.IOException;
import java.util.HashMap;

/**
 *
 * @author psoares
 */
public class CMapCache {
    private static final HashMap cacheUniCid = new HashMap();
    private static final HashMap cacheCidUni = new HashMap();
    private static final HashMap cacheCidByte = new HashMap();
    private static final HashMap cacheByteCid = new HashMap();
    
    public static CMapUniCid getCachedCMapUniCid(String name) throws IOException {
        CMapUniCid cmap = null;
        synchronized (cacheUniCid) {
            cmap = cacheUniCid.get(name);
        }
        if (cmap == null) {
            cmap = new CMapUniCid();
            CMapParserEx.parseCid(name, cmap, new CidResource());
            synchronized (cacheUniCid) {
                cacheUniCid.put(name, cmap);
            }
        }
        return cmap;
    }
    
    public static CMapCidUni getCachedCMapCidUni(String name) throws IOException {
        CMapCidUni cmap = null;
        synchronized (cacheCidUni) {
            cmap = cacheCidUni.get(name);
        }
        if (cmap == null) {
            cmap = new CMapCidUni();
            CMapParserEx.parseCid(name, cmap, new CidResource());
            synchronized (cacheCidUni) {
                cacheCidUni.put(name, cmap);
            }
        }
        return cmap;
    }
    
    public static CMapCidByte getCachedCMapCidByte(String name) throws IOException {
        CMapCidByte cmap = null;
        synchronized (cacheCidByte) {
            cmap = cacheCidByte.get(name);
        }
        if (cmap == null) {
            cmap = new CMapCidByte();
            CMapParserEx.parseCid(name, cmap, new CidResource());
            synchronized (cacheCidByte) {
                cacheCidByte.put(name, cmap);
            }
        }
        return cmap;
    }
    
    public static CMapByteCid getCachedCMapByteCid(String name) throws IOException {
        CMapByteCid cmap = null;
        synchronized (cacheByteCid) {
            cmap = cacheByteCid.get(name);
        }
        if (cmap == null) {
            cmap = new CMapByteCid();
            CMapParserEx.parseCid(name, cmap, new CidResource());
            synchronized (cacheByteCid) {
                cacheByteCid.put(name, cmap);
            }
        }
        return cmap;
    }
}