| /* ==================================================================== |
| 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; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| import org.apache.commons.compress.archivers.zip.ZipArchiveEntry; |
| import org.apache.poi.openxml4j.exceptions.InvalidFormatException; |
| import org.apache.poi.openxml4j.exceptions.InvalidOperationException; |
| import org.apache.poi.openxml4j.exceptions.OpenXML4JException; |
| import org.apache.poi.openxml4j.opc.internal.ContentType; |
| import org.apache.poi.openxml4j.opc.internal.marshallers.ZipPartMarshaller; |
| import org.apache.poi.util.NotImplemented; |
| |
| /** |
| * Zip implementation of a PackagePart. |
| * |
| * @version 1.0 |
| * @see PackagePart |
| */ |
| public class ZipPackagePart extends PackagePart { |
| |
| /** |
| * The zip entry corresponding to this part. |
| */ |
| private ZipArchiveEntry zipEntry; |
| |
| /** |
| * Constructor. |
| * |
| * @param container |
| * The container package. |
| * @param zipEntry |
| * The zip entry corresponding to this part. |
| * @param partName |
| * The part name. |
| * @param contentType |
| * Content type. |
| * @throws InvalidFormatException |
| * Throws if the content of this part is invalid. |
| */ |
| public ZipPackagePart(OPCPackage container, ZipArchiveEntry zipEntry, |
| PackagePartName partName, String contentType) |
| throws InvalidFormatException { |
| this(container, zipEntry, partName, contentType, true); |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param container |
| * The container package. |
| * @param zipEntry |
| * The zip entry corresponding to this part. |
| * @param partName |
| * The part name. |
| * @param contentType |
| * Content type. |
| * @throws InvalidFormatException |
| * Throws if the content of this part is invalid. |
| */ |
| /* package */ ZipPackagePart(OPCPackage container, ZipArchiveEntry zipEntry, |
| PackagePartName partName, String contentType, boolean loadRelationships) |
| throws InvalidFormatException { |
| super(container, partName, new ContentType(contentType), loadRelationships); |
| this.zipEntry = zipEntry; |
| } |
| |
| /** |
| * Get the zip entry of this part. |
| * |
| * @return The zip entry in the zip structure corresponding to this part. |
| */ |
| public ZipArchiveEntry getZipArchive() { |
| return zipEntry; |
| } |
| |
| /** |
| * Implementation of the getInputStream() which return the inputStream of |
| * this part zip entry. |
| * |
| * @return Input stream of this part zip entry. |
| */ |
| @Override |
| protected InputStream getInputStreamImpl() throws IOException { |
| // We use the getInputStream() method from java.util.zip.ZipFile |
| // class which return an InputStream to this part zip entry. |
| return ((ZipPackage) _container).getZipArchive() |
| .getInputStream(zipEntry); |
| } |
| |
| /** |
| * Implementation of the getOutputStream(). Return <b>null</b>. Normally |
| * will never be called since the MemoryPackage is use instead. |
| * |
| * @return <b>null</b> |
| */ |
| @Override |
| protected OutputStream getOutputStreamImpl() { |
| return null; |
| } |
| |
| @Override |
| public long getSize() { |
| return zipEntry.getSize(); |
| } |
| |
| @Override |
| public boolean save(OutputStream os) throws OpenXML4JException { |
| return new ZipPartMarshaller().marshall(this, os); |
| } |
| |
| @Override |
| @NotImplemented |
| public boolean load(InputStream ios) { |
| throw new InvalidOperationException("Method not implemented !"); |
| } |
| |
| @Override |
| @NotImplemented |
| public void close() { |
| throw new InvalidOperationException("Method not implemented !"); |
| } |
| |
| @Override |
| @NotImplemented |
| public void flush() { |
| throw new InvalidOperationException("Method not implemented !"); |
| } |
| } |