/*
* JBoss, Home of Professional Open Source.
* Copyright 2009, Red Hat Middleware LLC, 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.infinispan.marshall.exts;
import org.infinispan.atomic.DeltaAware;
import org.infinispan.commands.RemoteCommandsFactory;
import org.infinispan.commands.ReplicableCommand;
import org.infinispan.commands.control.LockControlCommand;
import org.infinispan.commands.control.RehashControlCommand;
import org.infinispan.commands.control.StateTransferControlCommand;
import org.infinispan.commands.read.GetKeyValueCommand;
import org.infinispan.commands.remote.ClusteredGetCommand;
import org.infinispan.commands.remote.MultipleRpcCommand;
import org.infinispan.commands.remote.SingleRpcCommand;
import org.infinispan.commands.tx.CommitCommand;
import org.infinispan.commands.tx.PrepareCommand;
import org.infinispan.commands.tx.RollbackCommand;
import org.infinispan.commands.write.ClearCommand;
import org.infinispan.commands.write.EvictCommand;
import org.infinispan.commands.write.InvalidateCommand;
import org.infinispan.commands.write.InvalidateL1Command;
import org.infinispan.commands.write.PutKeyValueCommand;
import org.infinispan.commands.write.PutMapCommand;
import org.infinispan.commands.write.RemoveCommand;
import org.infinispan.commands.write.ReplaceCommand;
import org.infinispan.marshall.AbstractExternalizer;
import org.infinispan.io.UnsignedNumeric;
import org.infinispan.marshall.Ids;
import org.infinispan.util.Util;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Set;
/**
* ReplicableCommandExternalizer.
*
* @author Galder Zamarreño
* @since 4.0
*/
public class ReplicableCommandExternalizer extends AbstractExternalizer<ReplicableCommand> {
private RemoteCommandsFactory cmdFactory;
public void inject(RemoteCommandsFactory cmdFactory) {
this.cmdFactory = cmdFactory;
}
@Override
public void writeObject(ObjectOutput output, ReplicableCommand command) throws IOException {
output.writeShort(command.getCommandId());
Object[] args = command.getParameters();
int numArgs = (args == null ? 0 : args.length);
UnsignedNumeric.writeUnsignedInt(output,numArgs);
for (int i = 0; i < numArgs; i++) {
Object arg = args[i];
if (arg instanceof DeltaAware) {
// Only write deltas so that replication can be more efficient
DeltaAware dw = (DeltaAware) arg;
output.writeObject(dw.delta());
} else {
output.writeObject(arg);
}
}
}
@Override
public ReplicableCommand readObject(ObjectInput input) throws IOException, ClassNotFoundException {
short methodId = input.readShort();
int numArgs = UnsignedNumeric.readUnsignedInt(input);
Object[] args = null;
if (numArgs > 0) {
args = new Object[numArgs];
// For DeltaAware instances, nothing special to be done here.
// Do not merge here since the cache contents are required.
// Instead, merge in PutKeyValueCommand.perform
for (int i = 0; i < numArgs; i++) args[i] = input.readObject();
}
return cmdFactory.fromStream((byte) methodId, args);
}
@Override
public Integer getId() {
return Ids.REPLICABLE_COMMAND;
}
@Override
public Set<Class<? extends ReplicableCommand>> getTypeClasses() {
return Util.asSet(
LockControlCommand.class, RehashControlCommand.class,
StateTransferControlCommand.class, GetKeyValueCommand.class,
ClusteredGetCommand.class, MultipleRpcCommand.class,
SingleRpcCommand.class, CommitCommand.class,
PrepareCommand.class, RollbackCommand.class,
ClearCommand.class, EvictCommand.class,
InvalidateCommand.class, InvalidateL1Command.class,
PutKeyValueCommand.class, PutMapCommand.class,
RemoveCommand.class, ReplaceCommand.class);
}
}