/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, 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.infinispan.server.jgroups.subsystem;
import java.util.EnumSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.logging.ControllerLogger;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.as.controller.parsing.ParseUtils;
import org.jboss.dmr.ModelNode;
import org.jboss.staxmapper.XMLElementReader;
import org.jboss.staxmapper.XMLExtendedStreamReader;
/**
* XML reader for the JGroups subsystem.
* @author Paul Ferraro
*/
public class JGroupsSubsystemXMLReader implements XMLElementReader<List<ModelNode>> {
private final JGroupsSchema schema;
JGroupsSubsystemXMLReader(JGroupsSchema schema) {
this.schema = schema;
}
@Override
public void readElement(XMLExtendedStreamReader reader, List<ModelNode> result) throws XMLStreamException {
Map<PathAddress, ModelNode> operations = new LinkedHashMap<>();
PathAddress address = PathAddress.pathAddress(JGroupsSubsystemResourceDefinition.PATH);
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
if (!this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_8_0)) {
@SuppressWarnings("deprecation")
String defaultStack = require(reader, Attribute.DEFAULT_STACK);
JGroupsSubsystemResourceDefinition.DEFAULT_STACK.parseAndSetParameter(defaultStack, operation, reader);
}
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
Element element = Element.forName(reader.getLocalName());
switch (element) {
case CHANNELS: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_8_0)) {
this.parseChannels(reader, address, operations);
break;
}
}
case STACKS: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_8_0)) {
this.parseStacks(reader, address, operations);
break;
}
}
case STACK: {
if (!this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_8_0)) {
this.parseStack(reader, address, operations);
break;
}
}
default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
result.addAll(operations.values());
}
private void parseChannels(XMLExtendedStreamReader reader, PathAddress address, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
ModelNode operation = operations.get(address);
for (int i = 0; i < reader.getAttributeCount(); i++) {
ParseUtils.requireNoNamespaceAttribute(reader, i);
String value = reader.getAttributeValue(i);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case DEFAULT: {
JGroupsSubsystemResourceDefinition.DEFAULT_CHANNEL.parseAndSetParameter(value, operation, reader);
break;
}
default: {
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
}
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
Element element = Element.forName(reader.getLocalName());
switch (element) {
case CHANNEL: {
this.parseChannel(reader, address, operations);
break;
}
default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
}
private void parseChannel(XMLExtendedStreamReader reader, PathAddress subsystemAddress, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
String name = require(reader, Attribute.NAME);
PathAddress address = subsystemAddress.append(ChannelResourceDefinition.pathElement(name));
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
for (int i = 0; i < reader.getAttributeCount(); i++) {
ParseUtils.requireNoNamespaceAttribute(reader, i);
String value = reader.getAttributeValue(i);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case NAME: {
// Already parsed
break;
}
case STACK: {
ChannelResourceDefinition.STACK.parseAndSetParameter(value, operation, reader);
break;
}
case MODULE: {
ChannelResourceDefinition.MODULE.parseAndSetParameter(value, operation, reader);
break;
}
default: {
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
}
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
Element element = Element.forName(reader.getLocalName());
switch (element) {
case FORK: {
this.parseFork(reader, address, operations);
break;
}
default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
}
private void parseFork(XMLExtendedStreamReader reader, PathAddress channelAddress, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
String name = require(reader, Attribute.NAME);
PathAddress address = channelAddress.append(ForkResourceDefinition.pathElement(name));
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
for (int i = 0; i < reader.getAttributeCount(); i++) {
ParseUtils.requireNoNamespaceAttribute(reader, i);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case NAME: {
// Already parsed
break;
}
default: {
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
}
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
Element element = Element.forName(reader.getLocalName());
switch (element) {
case PROTOCOL: {
this.parseProtocol(reader, address, operations);
break;
}
default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
}
private void parseStacks(XMLExtendedStreamReader reader, PathAddress address, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
ModelNode operation = operations.get(address);
for (int i = 0; i < reader.getAttributeCount(); i++) {
ParseUtils.requireNoNamespaceAttribute(reader, i);
String value = reader.getAttributeValue(i);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case DEFAULT: {
JGroupsSubsystemResourceDefinition.DEFAULT_STACK.parseAndSetParameter(value, operation, reader);
break;
}
default: {
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
}
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
Element element = Element.forName(reader.getLocalName());
switch (element) {
case STACK: {
this.parseStack(reader, address, operations);
break;
}
default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
}
private void parseStack(XMLExtendedStreamReader reader, PathAddress subsystemAddress, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
String name = require(reader, Attribute.NAME);
PathAddress address = subsystemAddress.append(StackResourceDefinition.pathElement(name));
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
boolean hasSasl = false;
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
Element element = Element.forName(reader.getLocalName());
switch (element) {
case TRANSPORT: {
this.parseTransport(reader, address, operations);
break;
}
case PROTOCOL: {
this.parseProtocol(reader, address, operations);
break;
}
case RELAY: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_7_0)) {
this.parseRelay(reader, address, operations);
break;
}
}
case SASL: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_7_0))
if (!hasSasl) {
this.parseSasl(reader, address, operations);
hasSasl = true;
} else {
throw ParseUtils.unexpectedElement(reader);
}
break;
}
default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
}
private void parseTransport(XMLExtendedStreamReader reader, PathAddress stackAddress, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
String type = require(reader, Attribute.TYPE);
PathAddress address = stackAddress.append(TransportResourceDefinition.pathElement(type));
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
for (int i = 0; i < reader.getAttributeCount(); i++) {
String value = reader.getAttributeValue(i);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case SHARED: {
TransportResourceDefinition.SHARED.parseAndSetParameter(value, operation, reader);
break;
}
case DIAGNOSTICS_SOCKET_BINDING: {
TransportResourceDefinition.DIAGNOSTICS_SOCKET_BINDING.parseAndSetParameter(value, operation, reader);
break;
}
case DEFAULT_EXECUTOR: {
TransportResourceDefinition.DEFAULT_EXECUTOR.parseAndSetParameter(value, operation, reader);
break;
}
case OOB_EXECUTOR: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_9_0)) {
throw ParseUtils.unexpectedAttribute(reader, i);
} else {
ControllerLogger.DEPRECATED_LOGGER.warnf("OOB thread pool settings are ignored.");
}
break;
}
case TIMER_EXECUTOR: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_9_0)) {
throw ParseUtils.unexpectedAttribute(reader, i);
} else {
ControllerLogger.DEPRECATED_LOGGER.warnf("Timer thread pool settings are ignored.");
}
break;
}
case THREAD_FACTORY: {
TransportResourceDefinition.THREAD_FACTORY.parseAndSetParameter(value, operation, reader);
break;
}
case SITE: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_7_0)) {
TransportResourceDefinition.SITE.parseAndSetParameter(value, operation, reader);
break;
}
}
case RACK: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_7_0)) {
TransportResourceDefinition.RACK.parseAndSetParameter(value, operation, reader);
break;
}
}
case MACHINE: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_7_0)) {
TransportResourceDefinition.MACHINE.parseAndSetParameter(value, operation, reader);
break;
}
}
default: {
this.parseProtocolAttribute(reader, i, operation);
}
}
}
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
this.parseProtocolElement(reader, address, operations);
}
}
private void parseProtocol(XMLExtendedStreamReader reader, PathAddress stackAddress, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
String type = require(reader, Attribute.TYPE);
PathAddress address = stackAddress.append(ProtocolResourceDefinition.pathElement(type));
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
for (int i = 0; i < reader.getAttributeCount(); i++) {
this.parseProtocolAttribute(reader, i, operation);
}
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
this.parseProtocolElement(reader, address, operations);
}
}
private void parseProtocolAttribute(XMLExtendedStreamReader reader, int index, ModelNode operation) throws XMLStreamException {
String value = reader.getAttributeValue(index);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(index));
switch (attribute) {
case TYPE: {
// Already parsed
break;
}
case SOCKET_BINDING: {
ProtocolResourceDefinition.SOCKET_BINDING.parseAndSetParameter(value, operation, reader);
break;
}
case MODULE: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_8_0)) {
ProtocolResourceDefinition.MODULE.parseAndSetParameter(value, operation, reader);
break;
}
}
default: {
throw ParseUtils.unexpectedAttribute(reader, index);
}
}
}
private void parseProtocolElement(XMLExtendedStreamReader reader, PathAddress address, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
Element element = Element.forName(reader.getLocalName());
switch (element) {
case PROPERTY: {
this.parseProperty(reader, address, operations);
break;
}
case DEFAULT_THREAD_POOL:
parseThreadPool(ThreadPoolResourceDefinition.DEFAULT, reader, address, operations);
break;
case INTERNAL_THREAD_POOL:
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_9_0)) {
throw ParseUtils.unexpectedElement(reader);
} else {
ControllerLogger.DEPRECATED_LOGGER.warnf("Internal thread pool settings are ignored.");
ParseUtils.requireNoContent(reader);
}
break;
case OOB_THREAD_POOL:
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_9_0)) {
throw ParseUtils.unexpectedElement(reader);
} else {
ControllerLogger.DEPRECATED_LOGGER.warnf("OOB thread pool settings are ignored.");
ParseUtils.requireNoContent(reader);
}
break;
case TIMER_THREAD_POOL:
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_9_0)) {
throw ParseUtils.unexpectedElement(reader);
} else {
ControllerLogger.DEPRECATED_LOGGER.warnf("Timer thread pool settings are ignored.");
ParseUtils.requireNoContent(reader);
}
break;
default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
private void parseProperty(XMLExtendedStreamReader reader, PathAddress address, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
ModelNode operation = operations.get(address);
String name = require(reader, Attribute.NAME);
ProtocolResourceDefinition.PROPERTIES.parseAndAddParameterElement(name, reader.getElementText(), operation, reader);
}
private void parseThreadPool(ThreadPoolResourceDefinition pool, XMLExtendedStreamReader reader, PathAddress parentAddress, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
PathAddress address = parentAddress.append(pool.getPathElement());
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
for (int i = 0; i < reader.getAttributeCount(); i++) {
String value = reader.getAttributeValue(i);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case MIN_THREADS:
pool.getMinThreads().parseAndSetParameter(value, operation, reader);
break;
case MAX_THREADS:
pool.getMaxThreads().parseAndSetParameter(value, operation, reader);
break;
case QUEUE_LENGTH:
pool.getQueueLength().parseAndSetParameter(value, operation, reader);
break;
case KEEPALIVE_TIME:
pool.getKeepaliveTime().parseAndSetParameter(value, operation, reader);
break;
default:
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
ParseUtils.requireNoContent(reader);
}
private void parseRelay(XMLExtendedStreamReader reader, PathAddress stackAddress, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
PathAddress address = stackAddress.append(RelayResourceDefinition.PATH);
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
for (int i = 0; i < reader.getAttributeCount(); i++) {
String value = reader.getAttributeValue(i);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case SITE: {
RelayResourceDefinition.SITE.parseAndSetParameter(value, operation, reader);
break;
}
default: {
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
}
if (!operation.hasDefined(RelayResourceDefinition.SITE.getName())) {
throw ParseUtils.missingRequired(reader, EnumSet.of(Attribute.SITE));
}
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
Element element = Element.forName(reader.getLocalName());
switch (element) {
case REMOTE_SITE: {
this.parseRemoteSite(reader, address, operations);
break;
}
case PROPERTY: {
this.parseProperty(reader, address, operations);
break;
}
default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
}
private void parseRemoteSite(XMLExtendedStreamReader reader, PathAddress relayAddress, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
String site = require(reader, Attribute.NAME);
PathAddress address = relayAddress.append(RemoteSiteResourceDefinition.pathElement(site));
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
String cluster = null;
for (int i = 0; i < reader.getAttributeCount(); i++) {
String value = reader.getAttributeValue(i);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
switch (attribute) {
case NAME: {
// Already parsed
break;
}
case STACK: {
if (!this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_8_0)) {
RemoteSiteResourceDefinition.STACK.parseAndSetParameter(value, operation, reader);
break;
}
}
case CLUSTER: {
if (!this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_8_0)) {
cluster = value;
break;
}
}
case CHANNEL: {
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_8_0)) {
RemoteSiteResourceDefinition.CHANNEL.parseAndSetParameter(value, operation, reader);
// We need to populate the deprecated STACK attribute so that we have enough context for transforming the add operation
PathAddress subsystemAddress = PathAddress.pathAddress(JGroupsSubsystemResourceDefinition.PATH);
PathAddress channelAddress = subsystemAddress.append(ChannelResourceDefinition.pathElement(value));
ModelNode channelOperation = operations.get(channelAddress);
if (channelOperation != null) {
String stack;
if (channelOperation.hasDefined(ChannelResourceDefinition.STACK.getName())) {
stack = channelOperation.get(ChannelResourceDefinition.STACK.getName()).asString();
} else {
stack = operations.get(subsystemAddress).get(JGroupsSubsystemResourceDefinition.DEFAULT_STACK.getName()).asString();
}
RemoteSiteResourceDefinition.STACK.parseAndSetParameter(stack, operation, reader);
}
break;
}
}
default: {
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
}
if (this.schema.since(JGroupsSchema.INFINISPAN_SERVER_JGROUPS_8_0)) {
if (!operation.hasDefined(RemoteSiteResourceDefinition.CHANNEL.getName())) {
throw ParseUtils.missingRequired(reader, EnumSet.of(Attribute.CHANNEL));
}
} else {
if (!operation.hasDefined(RemoteSiteResourceDefinition.STACK.getName())) {
throw ParseUtils.missingRequired(reader, EnumSet.of(Attribute.STACK));
}
String channel = (cluster != null) ? cluster : site;
RemoteSiteResourceDefinition.CHANNEL.parseAndSetParameter(channel, operation, reader);
// We need to create a corresponding channel add operation
PathAddress subsystemAddress = PathAddress.pathAddress(JGroupsSubsystemResourceDefinition.PATH);
PathAddress channelAddress = subsystemAddress.append(ChannelResourceDefinition.pathElement(channel));
ModelNode channelOperation = Util.createAddOperation(channelAddress);
String stack = operation.get(RemoteSiteResourceDefinition.STACK.getName()).asString();
ChannelResourceDefinition.STACK.parseAndSetParameter(stack, channelOperation, reader);
operations.put(channelAddress, channelOperation);
}
ParseUtils.requireNoContent(reader);
}
private static String require(XMLExtendedStreamReader reader, Attribute attribute) throws XMLStreamException {
String value = reader.getAttributeValue(null, attribute.getLocalName());
if (value == null) {
throw ParseUtils.missingRequired(reader, attribute.getLocalName());
}
return value;
}
private void parseSasl(XMLExtendedStreamReader reader, final PathAddress stackAddress, Map<PathAddress, ModelNode> operations) throws XMLStreamException {
PathAddress address = stackAddress.append(SaslResourceDefinition.PATH);
ModelNode operation = Util.createAddOperation(address);
operations.put(address, operation);
EnumSet<Attribute> required = EnumSet.of(Attribute.MECH, Attribute.SECURITY_REALM);
for (int i = 0; i < reader.getAttributeCount(); i++) {
String value = reader.getAttributeValue(i);
Attribute attribute = Attribute.forName(reader.getAttributeLocalName(i));
required.remove(attribute);
switch (attribute) {
case CLUSTER_ROLE: {
SaslResourceDefinition.CLUSTER_ROLE.parseAndSetParameter(value, operation, reader);
break;
}
case MECH: {
SaslResourceDefinition.MECH.parseAndSetParameter(value, operation, reader);
break;
}
case SECURITY_REALM: {
SaslResourceDefinition.SECURITY_REALM.parseAndSetParameter(value, operation, reader);
break;
}
default: {
throw ParseUtils.unexpectedAttribute(reader, i);
}
}
}
if (!required.isEmpty()) {
throw ParseUtils.missingRequired(reader, required);
}
while (reader.hasNext() && (reader.nextTag() != XMLStreamConstants.END_ELEMENT)) {
Element element = Element.forName(reader.getLocalName());
switch (element) {
case PROPERTY: {
this.parseProperty(reader, address, operations);
break;
}
default: {
throw ParseUtils.unexpectedElement(reader);
}
}
}
}
}