/*
* JBoss, Home of Professional Open Source
* Copyright 2012 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.infinispan.configuration.parsing;
import java.io.BufferedInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.lang.ref.WeakReference;
import java.util.ServiceLoader;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import org.infinispan.config.ConfigurationException;
import org.infinispan.util.FileLookup;
import org.infinispan.util.FileLookupFactory;
import org.infinispan.util.Util;
import org.jboss.staxmapper.XMLMapper;
/**
*
* ParserRegistry.
*
* @author Tristan Tarrant
* @since 5.2
*/
public class ParserRegistry {
private final XMLMapper xmlMapper;
private final WeakReference<ClassLoader> cl;
public ParserRegistry(ClassLoader classLoader) {
xmlMapper = XMLMapper.Factory.create();
this.cl = new WeakReference<ClassLoader>(classLoader);
ServiceLoader<ConfigurationParser> parsers = ServiceLoader.load(ConfigurationParser.class, cl.get());
for (ConfigurationParser<?> parser : parsers) {
for (Namespace ns : parser.getSupportedNamespaces()) {
xmlMapper.registerRootElement(new QName(ns.getUri(), ns.getRootElement()), parser);
}
}
}
public ConfigurationBuilderHolder parseFile(String filename) throws IOException {
FileLookup fileLookup = FileLookupFactory.newInstance();
InputStream is = fileLookup.lookupFile(filename, cl.get());
if(is==null) {
throw new FileNotFoundException(filename);
}
try {
return parse(is);
} finally {
Util.close(is);
}
}
public ConfigurationBuilderHolder parse(InputStream is) {
try {
BufferedInputStream input = new BufferedInputStream(is);
XMLStreamReader streamReader = XMLInputFactory.newInstance().createXMLStreamReader(input);
ConfigurationBuilderHolder holder = new ConfigurationBuilderHolder(cl.get());
xmlMapper.parseDocument(holder, streamReader);
streamReader.close();
// Fire all parsingComplete events if any
for(ParserContext parserContext : holder.getParserContexts().values()) {
parserContext.fireParsingComplete();
}
return holder;
} catch (ConfigurationException e) {
throw e;
} catch (Exception e) {
throw new ConfigurationException(e);
}
}
}