de.schlichtherle.io.archive.zip.ZipInputArchive Maven / Gradle / Ivy
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Show all versions of truezip Show documentation
TrueZIP is a Java based Virtual File System (VFS) to enable
transparent, multi-threaded read/write access to archive files
(ZIP, TAR etc.) as if they were directories.
Archive files may be arbitrarily nested and the nesting level is only
limited by heap and file system size.
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/*
* Copyright (C) 2009-2010 Schlichtherle IT Services
*
* Licensed 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 de.schlichtherle.io.archive.zip;
import de.schlichtherle.io.InputArchiveMetaData;
import de.schlichtherle.io.archive.spi.ArchiveEntry;
import de.schlichtherle.io.archive.spi.InputArchive;
import de.schlichtherle.io.rof.ReadOnlyFile;
import de.schlichtherle.io.util.Paths;
import de.schlichtherle.util.zip.BasicZipFile;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.Enumeration;
import java.util.zip.ZipException;
/**
* An implementation of {@link InputArchive} to read ZIP archives.
*
* @see ZipDriver
*
* @author Christian Schlichtherle
* @version $Id: ZipInputArchive.java,v 1.3 2010/08/16 10:55:44 christian_schlichtherle Exp $
* @since TrueZIP 6.7
*/
public class ZipInputArchive
extends BasicZipFile
implements InputArchive {
private InputArchiveMetaData metaData;
public ZipInputArchive(
ReadOnlyFile rof,
String charset,
boolean preambled,
boolean postambled)
throws NullPointerException,
UnsupportedEncodingException,
FileNotFoundException,
ZipException,
IOException {
super(rof, charset, preambled, postambled);
}
protected de.schlichtherle.util.zip.ZipEntry createZipEntry(String entryName) {
return new ZipEntry(Paths.normalize(entryName, '/'));
}
public int getNumArchiveEntries() {
return super.size();
}
public Enumeration getArchiveEntries() {
return super.entries();
}
public ArchiveEntry getArchiveEntry(final String entryName) {
return (ZipEntry) super.getEntry(entryName);
}
public InputStream getInputStream(
final ArchiveEntry entry,
final ArchiveEntry dstEntry)
throws IOException {
return super.getInputStream(
entry.getName(), false, !(dstEntry instanceof ZipEntry));
}
//
// Metadata implementation.
//
public InputArchiveMetaData getMetaData() {
return metaData;
}
public void setMetaData(InputArchiveMetaData metaData) {
this.metaData = metaData;
}
}