/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. 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.jboss.as.host.controller.mgmt;
import static org.jboss.as.host.controller.HostControllerMessages.MESSAGES;
import static org.jboss.as.process.protocol.ProtocolUtils.expectHeader;
import java.io.DataInput;
import java.io.File;
import java.io.IOException;
import org.jboss.as.controller.HashUtil;
import org.jboss.as.domain.controller.DomainController;
import org.jboss.as.protocol.StreamUtils;
import org.jboss.as.protocol.mgmt.ActiveOperation;
import org.jboss.as.protocol.mgmt.FlushableDataOutput;
import org.jboss.as.protocol.mgmt.ManagementProtocol;
import org.jboss.as.protocol.mgmt.ManagementRequestContext;
import org.jboss.as.protocol.mgmt.ManagementRequestHandler;
import org.jboss.as.protocol.mgmt.ManagementRequestHandlerFactory;
import org.jboss.as.protocol.mgmt.ManagementRequestHeader;
import org.jboss.as.protocol.mgmt.ManagementResponseHeader;
import org.jboss.as.protocol.mgmt.RequestProcessingException;
import org.jboss.as.repository.HostFileRepository;
import org.jboss.as.repository.RemoteFileRequestAndHandler.RootFileReader;
import org.jboss.dmr.ModelNode;
/**
* Handles for requests from slave DC to master DC on the 'domain' channel.
*
* @author <a href="kabir.khan@jboss.com">Kabir Khan</a>
*/
class MasterDomainControllerOperationHandlerImpl implements ManagementRequestHandlerFactory {
private final DomainController domainController;
public MasterDomainControllerOperationHandlerImpl(final DomainController domainController) {
this.domainController = domainController;
}
@Override
public ManagementRequestHandler<?, ?> resolveHandler(RequestHandlerChain handlers, ManagementRequestHeader header) {
final byte operationId = header.getOperationId();
switch (operationId) {
case DomainControllerProtocol.UNREGISTER_HOST_CONTROLLER_REQUEST: {
handlers.registerActiveOperation(header.getBatchId(), null);
return new UnregisterOperation();
} case DomainControllerProtocol.GET_FILE_REQUEST: {
handlers.registerActiveOperation(header.getBatchId(), null);
return new GetFileOperation();
}
}
return handlers.resolveNext();
}
private class UnregisterOperation extends AbstractHostRequestHandler {
@Override
void handleRequest(String hostId, DataInput input, ManagementRequestContext<Void> context) throws IOException {
domainController.unregisterRemoteHost(hostId);
final FlushableDataOutput os = writeGenericResponseHeader(context);
try {
os.write(ManagementProtocol.RESPONSE_END);
os.close();
} finally {
StreamUtils.safeClose(os);
}
}
}
private class GetFileOperation extends AbstractHostRequestHandler {
@Override
void handleRequest(String hostId, DataInput input, ManagementRequestContext<Void> context) throws IOException {
final RootFileReader reader = new RootFileReader() {
public File readRootFile(byte rootId, String filePath) throws RequestProcessingException {
final HostFileRepository localFileRepository = domainController.getLocalFileRepository();
switch (rootId) {
case DomainControllerProtocol.PARAM_ROOT_ID_FILE: {
return localFileRepository.getFile(filePath);
}
case DomainControllerProtocol.PARAM_ROOT_ID_CONFIGURATION: {
return localFileRepository.getConfigurationFile(filePath);
}
case DomainControllerProtocol.PARAM_ROOT_ID_DEPLOYMENT: {
byte[] hash = HashUtil.hexStringToByteArray(filePath);
return localFileRepository.getDeploymentRoot(hash);
}
default: {
throw MESSAGES.invalidRootId(rootId);
}
}
}
};
DomainRemoteFileRequestAndHandler.INSTANCE.handleRequest(input, reader, context);
}
}
abstract static class AbstractHostRequestHandler implements ManagementRequestHandler<ModelNode, Void> {
abstract void handleRequest(final String hostId, DataInput input, ManagementRequestContext<Void> context) throws IOException;
@Override
public void handleRequest(DataInput input, ActiveOperation.ResultHandler<ModelNode> resultHandler, ManagementRequestContext<Void> context) throws IOException {
expectHeader(input, DomainControllerProtocol.PARAM_HOST_ID);
final String hostId = input.readUTF();
handleRequest(hostId, input, context);
resultHandler.done(null);
}
protected FlushableDataOutput writeGenericResponseHeader(final ManagementRequestContext<Void> context) throws IOException {
final ManagementResponseHeader header = ManagementResponseHeader.create(context.getRequestHeader());
return context.writeMessage(header);
}
}
}