/*
* 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.vfs;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.jboss.virtual.AssembledDirectory;
import org.jboss.virtual.plugins.context.AbstractVirtualFileHandler;
import org.jboss.virtual.plugins.context.StructuredVirtualFileHandler;
import org.jboss.virtual.spi.VFSContext;
import org.jboss.virtual.spi.VirtualFileHandler;
/**
* The assembled directory handler.
*
* @author <a href="bill@jboss.com">Bill Burke</a>
* @author <a href="ales.justin@jboss.org">Ales Justin</a>
* @version $Revision: 1.1 $
*/
@Assembled
public class AssembledDirectoryHandler extends AbstractVirtualFileHandler implements StructuredVirtualFileHandler
{
private static final long serialVersionUID = 1L;
private long lastModified = System.currentTimeMillis();
private Map<String, VirtualFileHandler> children = new HashMap<String, VirtualFileHandler>();
public AssembledDirectoryHandler(VFSContext context, AssembledDirectoryHandler parent, String name) throws IOException
{
super(context, parent, name);
String path = getPathName();
if (path.startsWith("/") == false)
path = "/" + path;
if (path.endsWith("/") == false)
path += "/";
setVfsUrl(new URL("vfs", context.getName(), -1, path, new AssembledUrlStreamHandler(context)));
}
public VirtualFileHandler addChild(VirtualFileHandler handler)
{
if (handler.getClass().isAnnotationPresent(Assembled.class) == false)
{
try
{
handler = new AssembledFileHandler(getVFSContext(), this, handler.getName(), handler);
}
catch (IOException e)
{
throw new RuntimeException(e);
}
}
children.put(handler.getName(), handler);
lastModified = System.currentTimeMillis();
return handler;
}
/**
* This method removes a specified child from its list of children map
*
* @param name child name
* @return true if child was removed, false otherwise
*/
public boolean removeChild(String name)
{
Iterator<String> it = children.keySet().iterator();
while (it.hasNext())
{
String key = it.next();
if (key.equals(name))
{
it.remove();
lastModified = System.currentTimeMillis();
return true;
}
}
return false;
}
@Override
public void cleanup()
{
children.clear();
}
public VirtualFileHandler findChild(String name)
{
return children.get(name);
}
public VirtualFileHandler getChild(String path) throws IOException
{
return structuredFindChild(path);
}
public URI toURI() throws URISyntaxException
{
return getVfsUrl().toURI();
}
public long getLastModified() throws IOException
{
return lastModified;
}
public long getSize() throws IOException
{
return 0;
}
public boolean exists() throws IOException
{
return true;
}
public boolean isLeaf() throws IOException
{
return false;
}
public boolean isHidden() throws IOException
{
return false;
}
public boolean isNested() throws IOException
{
return false;
}
public InputStream openStream() throws IOException
{
throw new RuntimeException("Cannot open stream");
}
public List<VirtualFileHandler> getChildren(boolean ignoreErrors) throws IOException
{
return new ArrayList<VirtualFileHandler>(children.values());
}
public VirtualFileHandler createChildHandler(String name) throws IOException
{
return children.get(name);
}
@Override
public AssembledDirectory getVirtualFile()
{
checkClosed();
increment();
return new AssembledDirectory(this);
}
@Override
public URL toURL() throws MalformedURLException, URISyntaxException
{
return getVfsUrl();
}
protected void internalReplaceChild(VirtualFileHandler original, VirtualFileHandler replacement)
{
children.remove(original.getName());
children.put(original.getName(), replacement);
}
}