package org.apache.maven.doxia.siterenderer;
/*
* 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.
*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import org.apache.velocity.runtime.resource.Resource;
import org.apache.velocity.runtime.resource.loader.ResourceLoader;
import org.apache.velocity.exception.ResourceNotFoundException;
import org.apache.commons.collections.ExtendedProperties;
import org.codehaus.plexus.util.IOUtil;
/**
* Skin resource loader: gets content from context classloader, which should contain skin artifact,
* and normalizes newlines (see <a href="http://jira.codehaus.org/browse/DOXIASITETOOLS-87">DOXIASITETOOLS-87</a>.
*
* @author Hervé Boutemy
*/
public class SkinResourceLoader
extends ResourceLoader
{
public void init( ExtendedProperties configuration )
{
}
public synchronized InputStream getResourceStream( String name )
throws ResourceNotFoundException
{
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
if ( name.startsWith( "/" ) )
{
name = name.substring( 1 );
}
return normalizeNewline( classLoader.getResourceAsStream( name ) );
}
InputStream normalizeNewline( InputStream in )
throws ResourceNotFoundException
{
if ( in == null )
{
return null;
}
try
{
byte[] content = IOUtil.toByteArray( in );
// following code based on org.apache.maven.doxia.sink.AbstractSink.unifyEOLs(String)
byte[] EOL = System.getProperty( "line.separator" ).getBytes();
final int size = content.length;
ByteArrayOutputStream out = new ByteArrayOutputStream( size );
for ( int i = 0; i < size; i++ )
{
byte b = content[i];
if ( b == '\r' )
{
if ( ( i + 1 ) < size && content[i + 1] == '\n' )
{
i++;
}
out.write( EOL );
}
else if ( b == '\n' )
{
out.write( EOL );
}
else
{
out.write( b );
}
}
return new ByteArrayInputStream( out.toByteArray() );
}
catch ( IOException ioe )
{
throw new ResourceNotFoundException( "cannot read resource", ioe );
}
finally
{
IOUtil.close( in );
}
}
public boolean isSourceModified( Resource resource )
{
return false;
}
public long getLastModified( Resource resource )
{
return 0;
}
}