/*
* 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.jena.riot.system.stream;
import java.io.InputStream ;
import org.apache.jena.atlas.web.ContentType ;
import org.apache.jena.atlas.web.TypedInputStream ;
import org.apache.jena.riot.RDFLanguages ;
import org.slf4j.Logger ;
import org.slf4j.LoggerFactory ;
public class LocatorClassLoader implements Locator
{
static Logger log = LoggerFactory.getLogger(LocatorClassLoader.class) ;
private final ClassLoader classLoader ;
public LocatorClassLoader(ClassLoader _classLoader)
{
classLoader =_classLoader ;
}
@Override
public boolean equals( Object other )
{
return
other instanceof LocatorClassLoader
&& classLoader == ((LocatorClassLoader) other).classLoader;
}
@Override
public int hashCode()
{ return classLoader.hashCode(); }
@Override
public TypedInputStream open(String resourceName)
{
if ( classLoader == null )
return null ;
InputStream in = classLoader.getResourceAsStream(resourceName) ;
if ( in == null )
{
if ( StreamManager.logAllLookups && log.isTraceEnabled() )
log.trace("Failed to open: "+resourceName) ;
return null ;
}
if ( StreamManager.logAllLookups && log.isTraceEnabled() )
log.trace("Found: "+resourceName) ;
ContentType ct = RDFLanguages.guessContentType(resourceName) ;
// No sensible base URI.
return new TypedInputStream(in, ct, null) ;
}
public ClassLoader getClassLoader()
{
return classLoader ;
}
@Override
public String getName() { return "ClassLoaderLocator" ; }
}