org.jboss.as.domain.controller.operations.DomainServerLifecycleHandlers Maven / Gradle / Ivy
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* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.jboss.as.domain.controller.operations;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.BLOCKING;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.GROUP;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.HOST;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.RELOAD_SERVERS;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.RESTART_SERVERS;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.SERVER_CONFIG;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.START_SERVERS;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.STOP_SERVERS;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationContext.Stage;
import org.jboss.as.controller.OperationDefinition;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.SimpleAttributeDefinitionBuilder;
import org.jboss.as.controller.SimpleOperationDefinitionBuilder;
import org.jboss.as.controller.client.helpers.domain.ServerStatus;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.registry.ManagementResourceRegistration;
import org.jboss.as.controller.registry.Resource;
import org.jboss.as.domain.controller.resources.DomainResolver;
import org.jboss.as.host.controller.ServerInventory;
import org.jboss.as.process.ProcessInfo;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.ModelType;
import org.jboss.dmr.Property;
/**
* An operation handler for the :stop-servers, :restart-servers and :start-servers commands. This belongs in the
* domain model but needs access to the server inventory which is initialized when setting up the host model.
*
* @author Kabir Khan
*/
public class DomainServerLifecycleHandlers {
public static final String RESTART_SERVERS_NAME = RESTART_SERVERS;
public static final String START_SERVERS_NAME = START_SERVERS;
public static final String STOP_SERVERS_NAME = STOP_SERVERS;
private static final int TIMEOUT = 10000;
public static void initializeServerInventory(ServerInventory serverInventory) {
StopServersLifecycleHandler.INSTANCE.setServerInventory(serverInventory);
StartServersLifecycleHandler.INSTANCE.setServerInventory(serverInventory);
RestartServersLifecycleHandler.INSTANCE.setServerInventory(serverInventory);
ReloadServersLifecycleHandler.INSTANCE.setServerInventory(serverInventory);
}
public static void registerDomainHandlers(ManagementResourceRegistration registration) {
registerHandlers(registration, false);
}
public static void registerServerGroupHandlers(ManagementResourceRegistration registration) {
registerHandlers(registration, true);
}
private static void registerHandlers(ManagementResourceRegistration registration, boolean serverGroup) {
registration.registerOperationHandler(getOperationDefinition(serverGroup, StopServersLifecycleHandler.OPERATION_NAME), StopServersLifecycleHandler.INSTANCE);
registration.registerOperationHandler(getOperationDefinition(serverGroup, StartServersLifecycleHandler.OPERATION_NAME), StartServersLifecycleHandler.INSTANCE);
registration.registerOperationHandler(getOperationDefinition(serverGroup, RestartServersLifecycleHandler.OPERATION_NAME), RestartServersLifecycleHandler.INSTANCE);
registration.registerOperationHandler(getOperationDefinition(serverGroup, ReloadServersLifecycleHandler.OPERATION_NAME), ReloadServersLifecycleHandler.INSTANCE);
}
private static OperationDefinition getOperationDefinition(boolean serverGroup, String operationName) {
final AttributeDefinition blocking = SimpleAttributeDefinitionBuilder.create(BLOCKING, ModelType.BOOLEAN, true).build();
return new SimpleOperationDefinitionBuilder(operationName,
DomainResolver.getResolver(serverGroup ? ModelDescriptionConstants.SERVER_GROUP : ModelDescriptionConstants.DOMAIN))
.addParameter(blocking)
.setRuntimeOnly()
.build();
}
private abstract static class AbstractHackLifecycleHandler implements OperationStepHandler {
volatile ServerInventory serverInventory;
protected AbstractHackLifecycleHandler() {
}
/**
* To be called when setting up the host model
*/
void setServerInventory(ServerInventory serverInventory) {
this.serverInventory = serverInventory;
}
String getServerGroupName(final ModelNode operation) {
final PathAddress address = PathAddress.pathAddress(operation.get(OP_ADDR));
if (address.size() == 0) {
return null;
}
return address.getLastElement().getValue();
}
Set getServersForGroup(final ModelNode model, final String groupName){
if (groupName == null) {
return Collections.emptySet();
}
final String hostName = model.get(HOST).keys().iterator().next();
final ModelNode serverConfig = model.get(HOST, hostName).get(SERVER_CONFIG);
if(! serverConfig.isDefined()) {
return Collections.emptySet();
}
final Set servers = new HashSet();
for (Property config : serverConfig.asPropertyList()) {
if (groupName.equals(config.getValue().get(GROUP).asString())) {
servers.add(config.getName());
}
}
return servers;
}
}
private static class StopServersLifecycleHandler extends AbstractHackLifecycleHandler {
static final String OPERATION_NAME = STOP_SERVERS_NAME;
static final StopServersLifecycleHandler INSTANCE = new StopServersLifecycleHandler();
@Override
public void execute(final OperationContext context, final ModelNode operation) throws OperationFailedException {
context.acquireControllerLock();
context.readResource(PathAddress.EMPTY_ADDRESS, false);
final String group = getServerGroupName(operation);
final boolean blocking = operation.get(BLOCKING).asBoolean(false);
context.addStep(new OperationStepHandler() {
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
// Even though we don't read from the service registry, we are modifying a service
context.getServiceRegistry(true);
if (group != null) {
final Set waitForServers = new HashSet();
final ModelNode model = Resource.Tools.readModel(context.readResourceFromRoot(PathAddress.EMPTY_ADDRESS, true));
for (String server : getServersForGroup(model, group)) {
serverInventory.stopServer(server, TIMEOUT);
waitForServers.add(server);
}
if (blocking) {
serverInventory.awaitServersState(waitForServers, false);
}
} else {
serverInventory.stopServers(TIMEOUT, blocking);
}
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
}, Stage.RUNTIME);
context.stepCompleted();
}
}
private static class StartServersLifecycleHandler extends AbstractHackLifecycleHandler {
static final String OPERATION_NAME = START_SERVERS_NAME;
static final StartServersLifecycleHandler INSTANCE = new StartServersLifecycleHandler();
@Override
public void execute(final OperationContext context, final ModelNode operation) throws OperationFailedException {
context.acquireControllerLock();
context.readResource(PathAddress.EMPTY_ADDRESS, false);
final ModelNode model = Resource.Tools.readModel(context.readResourceFromRoot(PathAddress.EMPTY_ADDRESS, true));
final String group = getServerGroupName(operation);
final boolean blocking = operation.get(BLOCKING).asBoolean(false);
context.addStep(new OperationStepHandler() {
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
final String hostName = model.get(HOST).keys().iterator().next();
final ModelNode serverConfig = model.get(HOST, hostName).get(SERVER_CONFIG);
final Set serversInGroup = getServersForGroup(model, group);
final Set waitForServers = new HashSet();
if(serverConfig.isDefined()) {
// Even though we don't read from the service registry, we are modifying a service
context.getServiceRegistry(true);
for (Property config : serverConfig.asPropertyList()) {
final ServerStatus status = serverInventory.determineServerStatus(config.getName());
if (status != ServerStatus.STARTING && status != ServerStatus.STARTED) {
if (group == null || serversInGroup.contains(config.getName())) {
if (status != ServerStatus.STOPPED) {
serverInventory.stopServer(config.getName(), TIMEOUT);
}
serverInventory.startServer(config.getName(), model);
waitForServers.add(config.getName());
}
}
}
if (blocking) {
serverInventory.awaitServersState(waitForServers, true);
}
}
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
}, Stage.RUNTIME);
context.stepCompleted();
}
}
private static class RestartServersLifecycleHandler extends AbstractHackLifecycleHandler {
static final String OPERATION_NAME = RESTART_SERVERS_NAME;
static final RestartServersLifecycleHandler INSTANCE = new RestartServersLifecycleHandler();
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
context.acquireControllerLock();
context.readResource(PathAddress.EMPTY_ADDRESS, false);
final ModelNode model = Resource.Tools.readModel(context.readResourceFromRoot(PathAddress.EMPTY_ADDRESS, true));
final String group = getServerGroupName(operation);
final boolean blocking = operation.get(BLOCKING).asBoolean(false);
context.addStep(new OperationStepHandler() {
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
// Even though we don't read from the service registry, we are modifying a service
context.getServiceRegistry(true);
Map processes = serverInventory.determineRunningProcesses(true);
final Set serversInGroup = getServersForGroup(model, group);
final Set waitForServers = new HashSet();
for (String serverName : processes.keySet()) {
final String serverModelName = serverInventory.getProcessServerName(serverName);
if (group == null || serversInGroup.contains(serverModelName)) {
serverInventory.restartServer(serverModelName, TIMEOUT, model);
waitForServers.add(serverModelName);
}
}
if (blocking) {
serverInventory.awaitServersState(waitForServers, true);
}
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
}, Stage.RUNTIME);
context.stepCompleted();
}
}
private static class ReloadServersLifecycleHandler extends AbstractHackLifecycleHandler {
static final String OPERATION_NAME = RELOAD_SERVERS;
static final ReloadServersLifecycleHandler INSTANCE = new ReloadServersLifecycleHandler();
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
context.acquireControllerLock();
context.readResource(PathAddress.EMPTY_ADDRESS, false);
final ModelNode model = Resource.Tools.readModel(context.readResourceFromRoot(PathAddress.EMPTY_ADDRESS, true));
final String group = getServerGroupName(operation);
final boolean blocking = operation.get(BLOCKING).asBoolean(false);
context.addStep(new OperationStepHandler() {
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
// Even though we don't read from the service registry, we are modifying a service
context.getServiceRegistry(true);
Map processes = serverInventory.determineRunningProcesses(true);
final Set serversInGroup = getServersForGroup(model, group);
final Set waitForServers = new HashSet();
for (String serverName : processes.keySet()) {
final String serverModelName = serverInventory.getProcessServerName(serverName);
if (group == null || serversInGroup.contains(serverModelName)) {
serverInventory.reloadServer(serverModelName, false);
waitForServers.add(serverModelName);
}
}
if (blocking) {
serverInventory.awaitServersState(waitForServers, true);
}
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
}, Stage.RUNTIME);
context.stepCompleted();
}
}
}
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