/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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.services.deployment;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import org.jboss.bootstrap.spi.ServerConfig;
import org.jboss.logging.Logger;
import org.jboss.system.server.ServerConfigLocator;
import org.jboss.util.file.Files;
/**
* Simple helper singleton to manage library operations
*
* @author <a href="mailto:dimitris@jboss.org">Dimitris Andreadis</a>
* @version $Revision: 81038 $
*/
public final class LibraryManager
{
// Static --------------------------------------------------------
/** the Logger instance */
private static final Logger log = Logger.getLogger(LibraryManager.class);
/** the singleton instance */
private static final LibraryManager INSTANCE = new LibraryManager();
// Private Data --------------------------------------------------
/** The local server library dir */
File serverLibDir;
/** The local server tmp dir */
File serverTmpDir;
// Constructors --------------------------------------------------
/**
* Private CTOR
*
* Requires that ServerConfig object is created
* and registered to the jboss MBeanServer
*/
private LibraryManager()
{
// discover if there is a local server library dir
ServerConfig config = ServerConfigLocator.locate();
URL serverLibURL = config.getServerLibraryURL();
if (serverLibURL != null && serverLibURL.getProtocol().startsWith("file"))
{
this.serverLibDir = new File(serverLibURL.getFile());
this.serverTmpDir = config.getServerTempDir();
log.debug("Using serverLibDir: " + this.serverLibDir);
log.debug("Using serverTmpDir: " + this.serverTmpDir);
}
else
{
log.info("Cannot manage remote serverLibraryURL: " + serverLibURL);
}
}
// Public --------------------------------------------------------
/**
* Gets the singleton
*/
public static LibraryManager getInstance()
{
return INSTANCE;
}
/**
* Upload a new library to server lib dir. A different
* filename may be specified, when writing the library.
*
* If the target filename exists, upload is not performed.
*
* @param src the source url to copy
* @param filename the filename to use when copying (optional)
* @return true if upload was succesful, false otherwise
*/
public boolean uploadLibrary(URL src, String filename)
{
if (src != null)
{
log.debug("Uploading from URL: " + src);
if (filename == null || filename.equals(""))
{
// get the basename of the url, let File do the dirty work
filename = (new File(src.getPath())).getName();
log.debug("Null or empty target filename, using basename: " + filename);
}
else
{
log.debug("Using target filename: " + filename);
}
// make sure target file does not exist
File target = new File(this.serverLibDir, filename);
if (!target.exists())
{
try
{
Files.copy(src, target);
return true; // success
}
catch (IOException e)
{
log.warn("Could not upload target library: " + filename, e);
}
}
else
{
log.warn("Target library exists: " + filename);
}
}
else
{
log.warn("Null src URL");
}
// upload failed
return false;
}
}