001/* 002 * Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the Eclipse Public License v1.0 006 * which accompanies this distribution, and is available at 007 * http://www.eclipse.org/legal/epl-v10.html 008 * 009 * Contributors: 010 * Nuxeo - initial API and implementation 011 * 012 */ 013package org.nuxeo.ecm.core.convert.cache; 014 015import java.io.Serializable; 016import java.util.Map; 017 018import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 019 020/** 021 * Simple helper to handle cache key generation. 022 * 023 * @author tiry 024 */ 025public class CacheKeyGenerator { 026 027 // Utility class. 028 private CacheKeyGenerator() { 029 } 030 031 public static String computeKey(String converterName, BlobHolder blobHolder, Map<String, Serializable> parameters) { 032 StringBuilder sb = new StringBuilder(); 033 sb.append(converterName); 034 sb.append(":"); 035 sb.append(blobHolder.getHash()); 036 if (parameters != null) { 037 for (String key : parameters.keySet()) { 038 sb.append(":").append(key); 039 sb.append(":").append(String.valueOf(parameters.get(key))); 040 } 041 } 042 return sb.toString(); 043 } 044 045}