/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.vfs.tasks;
import org.apache.commons.logging.Log;
import org.apache.commons.vfs.FileObject;
import org.apache.commons.vfs.FileSystemException;
import org.apache.commons.vfs.impl.StandardFileSystemManager;
import org.apache.tools.ant.BuildEvent;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.SubBuildListener;
import org.apache.tools.ant.Task;
/**
* Base class for the VFS Ant tasks. Takes care of creating a FileSystemManager,
* and for cleaning it up at the end of the build. Also provides some
* utility methods.
*
* @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a>
* @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $
*/
public class VfsTask
extends Task
{
private static StandardFileSystemManager manager;
/**
* Resolves a URI to a file, relative to the project's base directory.
*
* @param uri The URI to resolve.
*/
protected FileObject resolveFile(final String uri)
throws FileSystemException
{
if (manager == null)
{
manager = new StandardFileSystemManager();
manager.setLogger(new AntLogger());
manager.init();
getProject().addBuildListener(new CloseListener());
}
return manager.resolveFile(getProject().getBaseDir(), uri);
}
/**
* Close the manager
*/
protected void closeManager()
{
if (manager != null)
{
manager.close();
manager = null;
}
}
/**
* Closes the VFS manager when the project finishes.
*/
private class CloseListener
implements SubBuildListener
{
public void subBuildStarted(BuildEvent buildEvent)
{
}
public void subBuildFinished(BuildEvent buildEvent)
{
closeManager();
}
public void buildFinished(BuildEvent event)
{
closeManager();
}
public void buildStarted(BuildEvent event)
{
}
public void messageLogged(BuildEvent event)
{
}
public void targetFinished(BuildEvent event)
{
}
public void targetStarted(BuildEvent event)
{
}
public void taskFinished(BuildEvent event)
{
}
public void taskStarted(BuildEvent event)
{
}
}
/**
* A commons-logging wrapper for Ant logging.
*/
private class AntLogger
implements Log
{
public void debug(final Object o)
{
log(String.valueOf(o), Project.MSG_DEBUG);
}
public void debug(Object o, Throwable throwable)
{
debug(o);
}
public void error(Object o)
{
log(String.valueOf(o), Project.MSG_ERR);
}
public void error(Object o, Throwable throwable)
{
error(o);
}
public void fatal(Object o)
{
log(String.valueOf(o), Project.MSG_ERR);
}
public void fatal(Object o, Throwable throwable)
{
fatal(o);
}
public void info(Object o)
{
log(String.valueOf(o), Project.MSG_INFO);
}
public void info(Object o, Throwable throwable)
{
info(o);
}
public void trace(Object o)
{
}
public void trace(Object o, Throwable throwable)
{
}
public void warn(Object o)
{
log(String.valueOf(o), Project.MSG_WARN);
}
public void warn(Object o, Throwable throwable)
{
warn(o);
}
public boolean isDebugEnabled()
{
return true;
}
public boolean isErrorEnabled()
{
return true;
}
public boolean isFatalEnabled()
{
return true;
}
public boolean isInfoEnabled()
{
return true;
}
public boolean isTraceEnabled()
{
return false;
}
public boolean isWarnEnabled()
{
return true;
}
}
}