/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Charles Reich
*/
package com.caucho.quercus.lib.zip;
import com.caucho.quercus.*;
import com.caucho.quercus.annotation.Optional;
import com.caucho.quercus.annotation.ReturnNullAsFalse;
import com.caucho.quercus.env.StringValue;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.lib.file.BinaryInput;
import com.caucho.util.L10N;
import com.caucho.vfs.TempBuffer;
import java.io.*;
import java.util.logging.Logger;
import java.util.zip.ZipEntry;
public class QuercusZipEntry {
private static final Logger log =
Logger.getLogger(QuercusZipEntry.class.getName());
private static final L10N L = new L10N(QuercusZipEntry.class);
private final ZipEntry _entry;
private final BinaryInput _binaryInput;
private final long _position;
private ZipEntryInputStream _in;
public QuercusZipEntry(ZipEntry zipEntry,
BinaryInput binaryInput,
long position)
{
_entry = zipEntry;
_binaryInput = binaryInput;
_position = position;
}
/**
* Returns the file name.
*/
public String zip_entry_name()
{
return _entry.getName();
}
/**
* Returns the file's uncompressed size.
*/
public long zip_entry_filesize()
{
return _entry.getSize();
}
/**
* Opens this zip entry for reading.
*/
public boolean zip_entry_open(Env env, ZipDirectory directory)
{
try {
// php/1u07.qa
if (_in != null)
return true;
_in = new ZipEntryInputStream(_binaryInput.openCopy(), _position);
return true;
} catch (IOException e) {
env.warning(L.l(e.toString()));
return false;
}
}
/**
* Closes the zip entry.
*/
public boolean zip_entry_close()
throws IOException
{
if (_in == null)
return false;
ZipEntryInputStream in = _in;
_in = null;
in.close();
return true;
}
/**
* Reads and decompresses entry's compressed data.
*
* @return decompressed BinaryValue or FALSE on error
*/
@ReturnNullAsFalse
public StringValue zip_entry_read(Env env,
@Optional("1024") int length)
{
if (_in == null)
return null;
StringValue bb = env.createBinaryBuilder();
bb.appendReadAll((InputStream) _in, length);
return bb;
/*
if (bb.length() > 0)
return bb;
else
return null;
*/
}
/**
* Returns the size of the compressed data.
*
* @return -1, or compressed size
*/
public long zip_entry_compressedsize()
{
if (_entry == null)
return -1;
return _entry.getCompressedSize();
}
/**
* Only "deflate" and "store" methods are supported.
*
* @return the compression method used for this entry
*/
public String zip_entry_compressionmethod()
{
if (_entry == null)
return "";
Integer method = _entry.getMethod();
switch(method) {
case java.util.zip.ZipEntry.DEFLATED:
return "deflated";
case java.util.zip.ZipEntry.STORED:
return "stored";
default:
return method.toString();
}
}
public String toString()
{
return "QuercusZipEntry[" + _entry.getName() + "]";
}
}