/**************************************************************** * 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.james.mime4j.util; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * * @version $Id: TempStorage.java,v 1.2 2004/10/02 12:41:11 ntherning Exp $ */ public abstract class TempStorage { private static Log log = LogFactory.getLog(TempStorage.class); private static TempStorage inst = null; static { String clazz = System.getProperty("org.apache.james.mime4j.tempStorage"); try { if (inst != null) { inst = (TempStorage) Class.forName(clazz).newInstance(); } } catch (Throwable t) { log.warn("Unable to create or instantiate TempStorage class '" + clazz + "' using SimpleTempStorage instead", t); } if (inst == null) { inst = new SimpleTempStorage(); } } /** * Gets the root temporary path which should be used to * create new temporary paths or files. * * @return the root temporary path. */ public abstract TempPath getRootTempPath(); public static TempStorage getInstance() { return inst; } public static void setInstance(TempStorage inst) { if (inst == null) { throw new NullPointerException("inst"); } TempStorage.inst = inst; } }