/*
* JBoss, Home of Professional Open Source.
* Copyright 2013, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.clustering.marshalling.jboss;
import java.io.IOException;
import java.util.IdentityHashMap;
import java.util.Map;
import org.jboss.marshalling.ClassTable;
import org.jboss.marshalling.Marshaller;
import org.jboss.marshalling.Unmarshaller;
import org.wildfly.clustering.marshalling.spi.IndexExternalizer;
/**
* Simple {@link ClassTable} implementation based on an array of recognized classes.
* @author Paul Ferraro
*/
public class SimpleClassTable implements ClassTable {
private final Class<?>[] classes;
private final Map<Class<?>, Writer> writers = new IdentityHashMap<>();
private final IndexExternalizer indexExternalizer;
public SimpleClassTable(Class<?>... classes) {
this(IndexExternalizer.select(classes.length), classes);
}
private SimpleClassTable(IndexExternalizer indexExternalizer, Class<?>... classes) {
this.indexExternalizer = indexExternalizer;
this.classes = classes;
for (int i = 0; i < classes.length; i++) {
final int index = i;
Writer writer = new Writer() {
@Override
public void writeClass(Marshaller output, Class<?> clazz) throws IOException {
indexExternalizer.writeData(output, index);
}
};
this.writers.put(classes[i], writer);
}
}
@Override
public Writer getClassWriter(Class<?> clazz) {
return this.writers.get(clazz);
}
@Override
public Class<?> readClass(Unmarshaller input) throws IOException, ClassNotFoundException {
return this.classes[this.indexExternalizer.readData(input)];
}
}