001/* 002 * (C) Copyright 2006-2015 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Bogdan Stefanescu 018 * Florent Guillaume 019 */ 020package org.nuxeo.ecm.core.api.impl.blob; 021 022import java.io.IOException; 023import java.io.InputStream; 024import java.io.Serializable; 025import java.util.zip.ZipEntry; 026import java.util.zip.ZipFile; 027 028import org.nuxeo.ecm.core.api.Blob; 029 030/** 031 * A {@link Blob} backed by an entry in a ZIP file. 032 * 033 * @since 7.2 034 */ 035public class ZipEntryBlob extends AbstractBlob implements Serializable { 036 037 private static final long serialVersionUID = 1L; 038 039 protected final ZipFile zipFile; 040 041 protected final ZipEntry zipEntry; 042 043 /** 044 * Creates a {@link Blob} from an entry in a zip file. The {@link ZipFile} must not be closed until the stream has 045 * been read. 046 * 047 * @param zipFile the zip file 048 * @param zipEntry the zip entry 049 */ 050 public ZipEntryBlob(ZipFile zipFile, ZipEntry zipEntry) { 051 this.zipFile = zipFile; 052 this.zipEntry = zipEntry; 053 } 054 055 @Override 056 public InputStream getStream() throws IOException { 057 return zipFile.getInputStream(zipEntry); 058 } 059 060 @Override 061 public long getLength() { 062 return zipEntry.getSize(); 063 } 064 065}