/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.host.controller.mgmt;
import static org.jboss.as.protocol.ProtocolUtils.expectHeader;
import static org.jboss.as.protocol.StreamUtils.readUTFZBytes;
import java.io.IOException;
import java.io.InputStream;
import org.jboss.as.host.controller.ManagedServerLifecycleCallback;
import org.jboss.as.protocol.Connection;
import org.jboss.as.protocol.StreamUtils;
import org.jboss.as.protocol.mgmt.AbstractMessageHandler;
import org.jboss.as.protocol.mgmt.ManagementOperationHandler;
import org.jboss.as.protocol.mgmt.ManagementProtocol;
import org.jboss.as.protocol.mgmt.ManagementResponse;
import org.jboss.as.server.mgmt.domain.DomainServerProtocol;
import org.jboss.logging.Logger;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
/**
* Operation handler responsible for requests coming in from server processes.
*
* @author John Bailey
* @author Emanuel Muckenhuber
*/
public class ServerToHostOperationHandler extends AbstractMessageHandler implements ManagementOperationHandler, Service<ManagementOperationHandler> {
private static final Logger log = Logger.getLogger("org.jboss.as.host.controller.mgmt");
public static final ServiceName SERVICE_NAME = ManagementCommunicationService.SERVICE_NAME.append("server", "to", "host", "controller");
private final InjectedValue<ManagedServerLifecycleCallback> callback = new InjectedValue<ManagedServerLifecycleCallback>();
/** {@inheritDoc} */
@Override
public void start(StartContext context) throws StartException {
//
}
/** {@inheritDoc} */
@Override
public void stop(StopContext context) {
//
}
/** {@inheritDoc} */
@Override
public ManagementOperationHandler getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
/** {@inheritDoc} */
@Override
public byte getIdentifier() {
return DomainServerProtocol.SERVER_TO_HOST_CONTROLLER_OPERATION;
}
/** {@inheritDoc} */
@Override
public void handle(Connection connection, InputStream inputStream) throws IOException {
expectHeader(inputStream, ManagementProtocol.REQUEST_OPERATION);
final byte commandCode = StreamUtils.readByte(inputStream);
final AbstractMessageHandler operation = operationFor(commandCode);
if (operation == null) {
throw new IOException("Invalid command code " + commandCode + " received");
}
operation.handle(connection, inputStream);
}
private AbstractMessageHandler operationFor(final byte commandByte) {
switch (commandByte) {
case DomainServerProtocol.REGISTER_REQUEST: {
return new ServerRegisterCommand();
}
default: {
return null;
}
}
}
private class ServerRegisterCommand extends ManagementResponse {
private Connection connection;
/** {@inheritDoc} */
@Override
protected byte getResponseCode() {
return DomainServerProtocol.REGISTER_RESPONSE;
}
@Override
public void handle(final Connection connection, final InputStream input) throws IOException {
this.connection = connection;
super.handle(connection, input);
}
@Override
protected void readRequest(final InputStream input) throws IOException {
expectHeader(input, DomainServerProtocol.PARAM_SERVER_NAME);
final String serverName = readUTFZBytes(input);
log.infof("Server [%s] registered using connection [%s]", serverName, connection);
ServerToHostOperationHandler.this.callback.getValue().serverRegistered(serverName, connection);
}
}
public InjectedValue<ManagedServerLifecycleCallback> getCallback() {
return callback;
}
}