org.jboss.virtual.plugins.context.zip.ZipEntryWrapper Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.virtual.plugins.context.zip;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
/**
* ZipEntryWrapper - for abstracted access to in-memory entry
*
* @author Ales Justin
*/
class ZipEntryWrapper extends ZipBytesWrapper
{
private static final EmptyEnumeration emptyEnumeration = new EmptyEnumeration();
/**
* ZipStreamWrapper is not aware of actual zip source so it can not detect
* if it's been modified, like ZipFileWrapper does.
*
* @param zipStream the current zip input stream
* @param name the name
* @param lastModified passed by zip stream provider - constant value
* @throws java.io.IOException for any error
*/
ZipEntryWrapper(InputStream zipStream, String name, long lastModified) throws IOException
{
super(zipStream, name, lastModified);
}
InputStream openStream(ZipEntryInfo info) throws IOException
{
return getRootAsStream();
}
Enumeration entries() throws IOException
{
return emptyEnumeration;
}
/**
* Zip stream enumeration.
*/
private static class EmptyEnumeration implements Enumeration
{
public boolean hasMoreElements()
{
return false;
}
public ZipEntry nextElement()
{
return null;
}
}
}