package org.codehaus.plexus.resource;
/*
* The MIT License
*
* Copyright (c) 2004, The Codehaus
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import org.codehaus.plexus.logging.AbstractLogEnabled;
import org.codehaus.plexus.resource.loader.FileResourceCreationException;
import org.codehaus.plexus.resource.loader.ResourceLoader;
import org.codehaus.plexus.resource.loader.ResourceNotFoundException;
import org.codehaus.plexus.resource.loader.FileResourceLoader;
import org.codehaus.plexus.util.FileUtils;
import org.codehaus.plexus.util.IOUtil;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Writer;
import java.util.Iterator;
import java.util.Map;
/**
* @author <a href="mailto:trygvis@inamo.no">Trygve Laugstøl</a>
* @author Jason van Zyl
* @version $Id: DefaultResourceManager.java 4955 2006-12-03 02:45:07Z jvanzyl $
* @plexus.component
*/
public class DefaultResourceManager
extends AbstractLogEnabled
implements ResourceManager
{
/** @plexus.requirement role="org.codehaus.plexus.resource.loader.ResourceLoader" */
private Map resourceLoaders;
/** @plexus.configuration */
private File outputDirectory;
// ----------------------------------------------------------------------
// ResourceManager Implementation
// ----------------------------------------------------------------------
//TODO: we should tell the user where we have searched for the resource so if it fails they can
// debug easier (jvz)
public InputStream getResourceAsInputStream( String name )
throws ResourceNotFoundException
{
InputStream is = null;
for ( Iterator i = resourceLoaders.values().iterator(); i.hasNext(); )
{
ResourceLoader resourceLoader = (ResourceLoader) i.next();
try
{
is = resourceLoader.getResourceAsInputStream( name );
getLogger().debug( "The resource " + "'" + name + "'" + " found using the " + resourceLoader + "." );
break;
}
catch ( ResourceNotFoundException e )
{
// ignore and continue to the next loader
}
}
if ( is == null )
{
throw new ResourceNotFoundException( name );
}
return is;
}
public File getResourceAsFile( String name )
throws ResourceNotFoundException, FileResourceCreationException
{
return getResourceAsFile( name, null );
}
public File getResourceAsFile( String name,
String outputPath )
throws ResourceNotFoundException, FileResourceCreationException
{
// Optimization for File to File fetches
File f = FileResourceLoader.getResourceAsFile( name, outputPath, outputDirectory );
if ( f != null )
{
return f;
}
// End optimization
InputStream is = getResourceAsInputStream( name );
InputStreamReader reader = new InputStreamReader( is );
Writer writer;
File outputFile;
if ( outputPath == null )
{
outputFile = FileUtils.createTempFile( "plexus-resources", "tmp", null );
}
else
{
if ( outputDirectory != null )
{
outputFile = new File( outputDirectory, outputPath );
}
else
{
outputFile = new File( outputPath );
}
}
try
{
if ( !outputFile.getParentFile().exists() )
{
outputFile.getParentFile().mkdirs();
}
writer = new FileWriter( outputFile );
IOUtil.copy( reader, writer );
}
catch ( IOException e )
{
throw new FileResourceCreationException( "Cannot create file-based resource.", e );
}
return outputFile;
}
public File resolveLocation( String name,
String outputPath )
throws IOException
{
// Honour what the original locator does and return null ...
try
{
return getResourceAsFile( name, outputPath );
}
catch ( Exception e )
{
return null;
}
}
public File resolveLocation( String name )
throws IOException
{
// Honour what the original locator does and return null ...
System.out.println( "name = " + name );
try
{
return getResourceAsFile( name );
}
catch ( Exception e )
{
return null;
}
}
public void setOutputDirectory( File outputDirectory )
{
this.outputDirectory = outputDirectory;
}
public void addSearchPath( String id,
String path )
{
ResourceLoader loader = (ResourceLoader) resourceLoaders.get( id );
loader.addSearchPath( path );
}
}