/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2006 - 2015 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.states.process;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
/**
* A simple central storage for all sort of caching needs. On use, use your caller's class-name as key to avoid
* conflicts with other users. This cache is instantiated per report-run and does not need synchronisation.
*/
public class ReportProcessStore implements Serializable {
private HashMap<String, HashMap<?, ?>> storage;
public ReportProcessStore() {
storage = new HashMap<String, HashMap<?, ?>>();
}
public <K, V> Map<K, V> get( String id ) {
HashMap<?, ?> cache = storage.get( id );
if ( cache != null ) {
return (Map<K, V>) cache;
}
HashMap<K, V> m = new HashMap<K, V>();
storage.put( id, m );
return m;
}
}