/*
* JBoss, Home of Professional Open Source.
* Copyright 2010, 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.jboss.as.process.protocol;
import org.jboss.as.process.logging.ProcessLogger;
import org.jboss.marshalling.Marshaller;
import org.jboss.marshalling.MarshallerFactory;
import org.jboss.marshalling.Marshalling;
import org.jboss.marshalling.MarshallingConfiguration;
import org.jboss.marshalling.Unmarshaller;
import java.io.DataInput;
import java.io.IOException;
import java.io.InputStream;
/**
* Utility class providing methods for common management tasks.
*
* @author John Bailey
*/
public class ProtocolUtils {
private static final MarshallerFactory MARSHALLER_FACTORY;
static {
MARSHALLER_FACTORY = Marshalling.getMarshallerFactory("river", ProtocolUtils.class.getClassLoader());
}
private ProtocolUtils() {
}
public static <T> T unmarshal(final Unmarshaller unmarshaller, final Class<T> expectedType) throws IOException {
try {
return unmarshaller.readObject(expectedType);
} catch (ClassNotFoundException e) {
throw ProcessLogger.ROOT_LOGGER.failedToReadObject(e);
}
}
public static Marshaller getMarshaller(final MarshallingConfiguration config) throws IOException {
return MARSHALLER_FACTORY.createMarshaller(config);
}
public static Unmarshaller getUnmarshaller(final MarshallingConfiguration config) throws IOException {
return MARSHALLER_FACTORY.createUnmarshaller(config);
}
public static void expectHeader(final InputStream input, int expected) throws IOException {
expectHeader(StreamUtils.readByte(input), expected);
}
public static void expectHeader(final DataInput input, int expected) throws IOException {
expectHeader(input.readByte(), expected);
}
public static void expectHeader(final byte actual, int expected) throws IOException {
if (actual != (byte) expected) {
throw ProcessLogger.ROOT_LOGGER.invalidByteToken(expected, actual);
}
}
}