| /* ==================================================================== |
| 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.poi.poifs.filesystem; |
| |
| import org.apache.poi.poifs.nio.FileBackedDataSource; |
| import org.apache.poi.util.Beta; |
| import org.apache.poi.util.TempFile; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| /** |
| * An experimental POIFSFileSystem to support the encryption of large files |
| * |
| * @since 4.1.1 |
| */ |
| @Beta |
| public class TempFilePOIFSFileSystem extends POIFSFileSystem { |
| File tempFile; |
| |
| protected void createNewDataSource() { |
| try { |
| tempFile = TempFile.createTempFile("poifs", ".tmp"); |
| _data = new FileBackedDataSource(tempFile, false); |
| } catch (IOException e) { |
| throw new RuntimeException("Failed to create data source", e); |
| } |
| } |
| |
| public void close() throws IOException { |
| if (tempFile != null && tempFile.exists()) tempFile.delete(); |
| super.close(); |
| } |
| |
| } |