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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
*
* This program 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.
*
* This program 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. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard.io;
import proguard.classfile.ClassConstants;
import java.io.*;
import java.util.zip.*;
/**
* This <code>DataEntry</code> represents a ZIP entry.
*
* @author Eric Lafortune
*/
public class ZipDataEntry implements DataEntry
{
private final DataEntry parent;
private final ZipEntry zipEntry;
private ZipInputStream zipInputStream;
private InputStream bufferedInputStream;
public ZipDataEntry(DataEntry parent,
ZipEntry zipEntry,
ZipInputStream zipInputStream)
{
this.parent = parent;
this.zipEntry = zipEntry;
this.zipInputStream = zipInputStream;
}
// Implementations for DataEntry.
public String getName()
{
// Get the right separators.
String name = zipEntry.getName()
.replace(File.separatorChar, ClassConstants.PACKAGE_SEPARATOR);
// Chop the trailing directory slash, if any.
int length = name.length();
return length > 0 &&
name.charAt(length-1) == ClassConstants.PACKAGE_SEPARATOR ?
name.substring(0, length -1) :
name;
}
public boolean isDirectory()
{
return zipEntry.isDirectory();
}
public InputStream getInputStream() throws IOException
{
if (bufferedInputStream == null)
{
bufferedInputStream = new BufferedInputStream(zipInputStream);
}
return bufferedInputStream;
}
public void closeInputStream() throws IOException
{
zipInputStream.closeEntry();
zipInputStream = null;
bufferedInputStream = null;
}
public DataEntry getParent()
{
return parent;
}
// Implementations for Object.
public String toString()
{
return parent.toString() + ':' + getName();
}
}
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