/*
* Copyright (C) 2008-2015 by Holger Arndt
*
* This file is part of the Universal Java Matrix Package (UJMP).
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* UJMP is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* UJMP 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with UJMP; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package org.ujmp.core.collections.map;
import java.util.Map;
import java.util.Set;
import org.ujmp.core.util.CompressionUtil;
public class GZIPCompressionMap extends AbstractMap<String, byte[]> {
private static final long serialVersionUID = -2554468174079653400L;
private final Map<String, byte[]> map;
public GZIPCompressionMap(Map<String, byte[]> map) {
this.map = map;
}
public void clear() {
map.clear();
}
public byte[] get(Object key) {
try {
byte[] data = map.get(key);
return data == null ? null : CompressionUtil.gzipDecompress(data);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public Set<String> keySet() {
return map.keySet();
}
public byte[] put(String key, byte[] value) {
byte[] oldValue = get(key);
map.put(key, CompressionUtil.gzipCompress(value));
return oldValue;
}
public byte[] remove(Object key) {
byte[] oldValue = get(key);
map.remove(key);
return oldValue;
}
public int size() {
return map.size();
}
}