| /**************************************************************** |
| * 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.storage; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.james.mime4j.util.ContentUtil; |
| |
| /** |
| * Abstract implementation of {@link StorageProvider} that implements |
| * {@link StorageProvider#store(InputStream) store(InputStream)} by copying the |
| * input stream to a {@link StorageOutputStream} obtained from |
| * {@link StorageProvider#createStorageOutputStream() createStorageOutputStream()}. |
| */ |
| public abstract class AbstractStorageProvider implements StorageProvider { |
| |
| /** |
| * Sole constructor. |
| */ |
| protected AbstractStorageProvider() { |
| } |
| |
| /** |
| * This implementation creates a {@link StorageOutputStream} by calling |
| * {@link StorageProvider#createStorageOutputStream() createStorageOutputStream()} |
| * and copies the content of the given input stream to that output stream. |
| * It then calls {@link StorageOutputStream#toStorage()} on the output |
| * stream and returns this object. |
| * |
| * @param in |
| * stream containing the data to store. |
| * @return a {@link Storage} instance that can be used to retrieve the |
| * stored content. |
| * @throws IOException |
| * if an I/O error occurs. |
| */ |
| public final Storage store(InputStream in) throws IOException { |
| StorageOutputStream out = createStorageOutputStream(); |
| ContentUtil.copy(in, out); |
| return out.toStorage(); |
| } |
| |
| } |