org.jboss.as.domain.controller.operations.ReadMasterDomainModelUtil Maven / Gradle / Ivy
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*
* This is free software; you can redistribute it and/or modify it
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* Lesser General Public License for more details.
*
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* License along with this software; if not, write to the Free
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package org.jboss.as.domain.controller.operations;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.PROFILE;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.registry.Resource;
import org.jboss.as.controller.transform.Transformers;
import org.jboss.as.host.controller.HostControllerMessages;
import org.jboss.as.host.controller.mgmt.DomainControllerRuntimeIgnoreTransformationRegistry;
import org.jboss.dmr.ModelNode;
/**
* Utility for the DC operation handlers to describe the missing resources for the slave hosts which are
* set up to ignore domain config which does not affect their servers
*
* @author Kabir Khan
*/
public class ReadMasterDomainModelUtil {
public static final String DOMAIN_RESOURCE_ADDRESS = "domain-resource-address";
public static final String DOMAIN_RESOURCE_MODEL = "domain-resource-model";
private final Set newRootResources = new HashSet<>();
private volatile List describedResources;
private ReadMasterDomainModelUtil() {
}
/**
* Used to read the domain model when a slave host connects to the DC
*
* @param context the operation context
* @param transformers the transformers for the host
* @param domainRoot the domain root resource
* @param runtimeIgnoreTransformationRegistry the domain controller registry of what resources should be ignored for the slave host
* @return a read master domain model util instance
*/
static ReadMasterDomainModelUtil readMasterDomainResourcesForInitialConnect(
final OperationContext context, final Transformers transformers, final Resource domainRoot,
final DomainControllerRuntimeIgnoreTransformationRegistry runtimeIgnoreTransformationRegistry) throws OperationFailedException {
Resource transformedResource = transformers.transformRootResource(context, domainRoot);
ReadMasterDomainModelUtil util = new ReadMasterDomainModelUtil();
util.describedResources = util.describeAsNodeList(PathAddress.EMPTY_ADDRESS, transformedResource, false);
return util;
}
/**
* Used to read the domain model when a slave has a change to its server config and requests the DC for missing data
*
* @param context the operation context
* @param missingRootResources the set of missing addresses
* @param transformers the transformers for the host
* @param domainRoot the domain root resource
* @param runtimeIgnoreTransformationRegistry the domain controller registry of what resources should be ignored for the slave host
* @return a read master domain model util instance
*/
static ReadMasterDomainModelUtil readMasterDomainResourcesForSlaveRequest(
final OperationContext context, final Set missingRootResources, final Transformers transformers, final Resource domainRoot,
final DomainControllerRuntimeIgnoreTransformationRegistry runtimeIgnoreTransformationRegistry) throws OperationFailedException {
final ReadMasterDomainModelUtil util = new ReadMasterDomainModelUtil();
util.describedResources = new ArrayList();
for (PathElement element : missingRootResources) {
PathAddress address = PathAddress.pathAddress(element);
Resource original = domainRoot.getChild(element);
if (original == null) {
throw HostControllerMessages.MESSAGES.noResourceFor(address);
}
Resource resource = transformers.transformResource(context, PathAddress.EMPTY_ADDRESS, original, true);
util.describe(address, resource, util.describedResources, true);
}
return util;
}
/**
* Used to read the domain model when a change is made to a server group on the DC, and missing data needs to be piggy backed to the slave
*
* @param context the operation context
* @param missingRootResources the set of missing addresses
* @param transformers the transformers for the host
* @param domainRoot the domain root resource
* @param runtimeIgnoreTransformationRegistry the domain controller registry of what resources should be ignored for the slave host
* @return a read master domain model util instance
*/
public static ReadMasterDomainModelUtil readMasterDomainResourcesForPiggyBackFollowingDomainControllerChange(
final OperationContext context, final Set missingRootResources, final Transformers transformers, String hostName, DomainControllerRuntimeIgnoreTransformationRegistry ignoreTransformationRegistry) throws OperationFailedException {
final ReadMasterDomainModelUtil util = new ReadMasterDomainModelUtil();
util.describedResources = new ArrayList();
Resource domainRoot = null;
final Set allMissingRootResources = new HashSet<>(missingRootResources);
for (PathElement element : missingRootResources) {
if (element.getKey().equals(PROFILE)) {
if (domainRoot == null) {
domainRoot = context.readResourceFromRoot(PathAddress.EMPTY_ADDRESS);
}
allMissingRootResources.addAll(ignoreTransformationRegistry.getUnknownExtensionsForProfile(domainRoot, hostName, element.getValue()));
}
}
for (PathElement element : allMissingRootResources) {
PathAddress address = PathAddress.pathAddress(element);
Resource original = context.readResourceFromRoot(address);
if (original == null) {
throw HostControllerMessages.MESSAGES.noResourceFor(address);
}
//TODO Look into why we need to get the child of the transformed resource
Resource resource = transformers.transformResource(context, address, original, true).getChild(element);
util.describe(address, resource, util.describedResources, true);
}
return util;
}
/**
* Gets a list of the resources for the slave's ApplyXXXXHandlers. Although the format might appear
* similar as the operations generated at boot-time this description is only useful
* to create the resource tree and cannot be used to invoke any operation.
*
* @return the resources
*/
public List getDescribedResources(){
return describedResources;
}
/**
* Gets the list of the new root resources known to the slave HC
*
* @return the new root resource addresses
*/
public Set getNewKnownRootResources(){
return newRootResources;
}
/**
* Describe the model as a list of resources with their address and model, which
* the HC can directly apply to create the model. Although the format might appear
* similar as the operations generated at boot-time this description is only useful
* to create the resource tree and cannot be used to invoke any operation.
*
* @param rootAddress the address of the root resource being described
* @param resource the root resource
* @return the list of resources
*/
private List describeAsNodeList(PathAddress rootAddress, final Resource resource, boolean isRuntimeChange) {
final List list = new ArrayList();
describe(rootAddress, resource, list, isRuntimeChange);
return list;
}
private void describe(final PathAddress base, final Resource resource, List nodes, boolean isRuntimeChange) {
if (resource.isProxy() || resource.isRuntime()) {
return; // ignore runtime and proxies
} else if (base.size() >= 1 && base.getElement(0).getKey().equals(ModelDescriptionConstants.HOST)) {
return; // ignore hosts
}
if (base.size() == 1) {
newRootResources.add(base.getLastElement());
}
final ModelNode description = new ModelNode();
description.get(ReadMasterDomainModelUtil.DOMAIN_RESOURCE_ADDRESS).set(base.toModelNode());
description.get(ReadMasterDomainModelUtil.DOMAIN_RESOURCE_MODEL).set(resource.getModel());
nodes.add(description);
for (final String childType : resource.getChildTypes()) {
for (final Resource.ResourceEntry entry : resource.getChildren(childType)) {
describe(base.append(entry.getPathElement()), entry, nodes, isRuntimeChange);
}
}
}
}
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