/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2013, Red Hat, Inc. and/or its affiliates or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat, Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.search.infinispan.impl;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import org.infinispan.commons.util.FileLookup;
import org.infinispan.commons.util.FileLookupFactory;
import org.infinispan.commons.util.Util;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.configuration.parsing.ConfigurationBuilderHolder;
import org.infinispan.configuration.parsing.ParserRegistry;
/**
* The Infinispan configuration is ClassLoader sensitive, this wrapper around
* the standard Parser is used to allow it to find resources in a modular
* classloading environment.
*
* @author Sanne Grinovero
* @since 4.3
*/
public class InfinispanConfigurationParser {
private final ParserRegistry configurationParser;
private final ClassLoader searchConfigClassloader;
private final ClassLoader userDeploymentClassloader;
public InfinispanConfigurationParser(ClassLoader searchConfigClassloader) {
this.searchConfigClassloader = searchConfigClassloader;
//The parser itself loads extensions from the Infinispan modules so
//needs to be pointed to the Infinispan module.
ClassLoader ispnClassLoadr = ParserRegistry.class.getClassLoader();
configurationParser = new ParserRegistry( ispnClassLoadr );
this.userDeploymentClassloader = Thread.currentThread().getContextClassLoader();
}
/**
* Resolves an Infinispan configuration file but using the Hibernate Search
* classloader. The returned Infinispan configuration template also overrides
* Infinispan's runtime classloader to the one of Hibernate Search.
*
* @param filename Infinispan configuration resource name
* @throws IOException
* @return
*/
public ConfigurationBuilderHolder parseFile(String filename) throws IOException {
FileLookup fileLookup = FileLookupFactory.newInstance();
InputStream is = fileLookup.lookupFile( filename, searchConfigClassloader );
if ( is == null ) {
is = fileLookup.lookupFile( filename, userDeploymentClassloader );
if ( is == null ) {
throw new FileNotFoundException( filename );
}
}
try {
ConfigurationBuilderHolder builderHolder = configurationParser.parse( is );
patchInfinispanClassLoader( builderHolder );
return builderHolder;
}
finally {
Util.close( is );
}
}
/**
* Changes the state of the passed configuration Builder to apply specific classloader needs
*/
private void patchInfinispanClassLoader(ConfigurationBuilderHolder configurationBuilderHolder) {
configurationBuilderHolder.getGlobalConfigurationBuilder().classLoader( searchConfigClassloader );
configurationBuilderHolder.getDefaultConfigurationBuilder().classLoader( searchConfigClassloader );
for ( ConfigurationBuilder cfg : configurationBuilderHolder.getNamedConfigurationBuilders().values() ) {
cfg.classLoader( searchConfigClassloader );
}
}
}