| /* ==================================================================== |
| 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.openxml4j.opc.internal; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| import org.apache.commons.compress.archivers.zip.ZipArchiveEntry; |
| import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.poi.openxml4j.exceptions.InvalidFormatException; |
| import org.apache.poi.openxml4j.opc.OPCPackage; |
| import org.apache.poi.openxml4j.opc.StreamHelper; |
| import org.w3c.dom.Document; |
| |
| /** |
| * Zip implementation of the ContentTypeManager. |
| * |
| * @author Julien Chable |
| * @version 1.0 |
| * @see ContentTypeManager |
| */ |
| public class ZipContentTypeManager extends ContentTypeManager { |
| private static final Logger LOG = LogManager.getLogger(ZipContentTypeManager.class); |
| |
| /** |
| * Delegate constructor to the super constructor. |
| * |
| * @param in |
| * The input stream to parse to fill internal content type |
| * collections. |
| * @throws InvalidFormatException |
| * If the content types part content is not valid. |
| */ |
| public ZipContentTypeManager(InputStream in, OPCPackage pkg) |
| throws InvalidFormatException { |
| super(in, pkg); |
| } |
| |
| @SuppressWarnings("resource") |
| @Override |
| public boolean saveImpl(Document content, OutputStream out) { |
| final ZipArchiveOutputStream zos = (out instanceof ZipArchiveOutputStream) |
| ? (ZipArchiveOutputStream) out : new ZipArchiveOutputStream(out); |
| |
| ZipArchiveEntry partEntry = new ZipArchiveEntry(CONTENT_TYPES_PART_NAME); |
| try { |
| // Referenced in ZIP |
| zos.putArchiveEntry(partEntry); |
| try { |
| // Saving data in the ZIP file |
| return StreamHelper.saveXmlInStream(content, zos); |
| } finally { |
| zos.closeArchiveEntry(); |
| } |
| } catch (IOException ioe) { |
| LOG.atError().withThrowable(ioe).log("Cannot write: " + CONTENT_TYPES_PART_NAME + " in Zip !"); |
| return false; |
| } |
| } |
| } |