/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, 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.controller.transform;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.OP_ADDR;
import java.util.Iterator;
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.ProcessType;
import org.jboss.as.controller.RunningMode;
import org.jboss.as.controller.logging.ControllerLogger;
import org.jboss.as.controller.registry.ImmutableManagementResourceRegistration;
import org.jboss.as.controller.registry.OperationTransformerRegistry.PlaceholderResolver;
import org.jboss.as.controller.registry.Resource;
import org.jboss.dmr.ModelNode;
/**
* @author Emanuel Muckenhuber
*/
class ResourceTransformationContextImpl implements ResourceTransformationContext {
private final Resource root;
private final PathAddress current;
private final PathAddress read;
private final OriginalModel originalModel;
private final TransformersLogger logger;
private final TransformerOperationAttachment transformerOperationAttachment;
private final Transformers.ResourceIgnoredTransformationRegistry ignoredTransformationRegistry;
static ResourceTransformationContext create(final Transformers.TransformationInputs tp, final TransformationTarget target,
final PathAddress current, final PathAddress read,
final Transformers.ResourceIgnoredTransformationRegistry ignoredTransformationRegistry) {
final Resource root = Resource.Factory.create();
final OriginalModel originalModel = new OriginalModel(tp.getRootResource(), tp.getRunningMode(), tp.getProcessType(), target, tp.getRootRegistration());
final TransformerOperationAttachment attachment = tp.getTransformerOperationAttachment();
return new ResourceTransformationContextImpl(root, current, read, originalModel, attachment, ignoredTransformationRegistry);
}
static ResourceTransformationContext create(TransformationTarget target, Resource model,
ImmutableManagementResourceRegistration registration,
RunningMode runningMode, ProcessType type,
TransformerOperationAttachment attachment,
final Transformers.ResourceIgnoredTransformationRegistry ignoredTransformationRegistry) {
final Resource root = Resource.Factory.create();
final OriginalModel originalModel = new OriginalModel(model, runningMode, type, target, registration);
return new ResourceTransformationContextImpl(root, PathAddress.EMPTY_ADDRESS,
originalModel, attachment, ignoredTransformationRegistry);
}
private ResourceTransformationContextImpl(Resource root, PathAddress address, final OriginalModel originalModel,
TransformerOperationAttachment transformerOperationAttachment,
final Transformers.ResourceIgnoredTransformationRegistry ignoredTransformationRegistry) {
this(root, address, address, originalModel, transformerOperationAttachment, ignoredTransformationRegistry);
}
private ResourceTransformationContextImpl(Resource root, PathAddress address, PathAddress read,
final OriginalModel originalModel,
TransformerOperationAttachment transformerOperationAttachment,
final Transformers.ResourceIgnoredTransformationRegistry ignoredTransformationRegistry) {
this.root = root;
this.current = address;
this.read = read;
this.originalModel = originalModel;
this.logger = TransformersLogger.getLogger(originalModel.target);
this.transformerOperationAttachment = transformerOperationAttachment;
this.ignoredTransformationRegistry = ignoredTransformationRegistry;
}
private ResourceTransformationContextImpl(ResourceTransformationContextImpl context, OriginalModel originalModel) {
this.root = context.root.clone();
this.current = context.current;
this.read = context.read;
this.logger = context.getLogger();
this.transformerOperationAttachment = context.transformerOperationAttachment;
this.ignoredTransformationRegistry = context.ignoredTransformationRegistry;
this.originalModel = originalModel;
}
ResourceTransformationContextImpl copy(PlaceholderResolver placeholderResolver) {
assert originalModel.target instanceof TransformationTargetImpl : "Wrong target";
TransformationTargetImpl tgt = (TransformationTargetImpl)originalModel.target;
TransformationTargetImpl targetCopy = tgt.copyWithplaceholderResolver(placeholderResolver);
OriginalModel originalModelCopy = new OriginalModel(originalModel.original, originalModel.mode, originalModel.type, targetCopy, originalModel.registration);
return new ResourceTransformationContextImpl(this, originalModelCopy);
}
public ResourceTransformationContext copyAndReplaceOriginalModel(PlaceholderResolver placeholderResolver) {
assert originalModel.target instanceof TransformationTargetImpl : "Wrong target";
TransformationTargetImpl tgt = (TransformationTargetImpl)originalModel.target;
TransformationTargetImpl targetCopy = tgt.copyWithplaceholderResolver(placeholderResolver);
final OriginalModel originalModelCopy = new OriginalModel(root, originalModel.mode,
originalModel.type, targetCopy, originalModel.registration);
ResourceTransformationContext copy = new ResourceTransformationContextImpl(this, originalModelCopy);
Resource root = copy.getTransformedRoot();
if (current.size() > 0) {
PathElement last = current.getLastElement();
Resource parent = root;
for (PathElement element : current) {
if (element.equals(last)) {
parent.removeChild(element);
} else {
parent = parent.getChild(element);
if (parent == null) {
break;
}
}
}
}
return copy;
}
@Override
public ResourceTransformationContext addTransformedResource(PathAddress address, Resource toAdd) {
final PathAddress absoluteAddress = this.current.append(address);
final PathAddress read = this.read.append(address);
return addTransformedResourceFromRoot(absoluteAddress, read, toAdd);
}
@Override
public ResourceTransformationContext addTransformedResourceFromRoot(PathAddress absoluteAddress, Resource toAdd) {
return addTransformedResourceFromRoot(absoluteAddress, absoluteAddress, toAdd);
}
private ResourceTransformationContext addTransformedResourceFromRoot(PathAddress absoluteAddress, PathAddress read, Resource toAdd) {
// Only keep the mode, drop all children
final Resource copy;
if (toAdd != null) {
copy = Resource.Factory.create(false, toAdd.getOrderedChildTypes());
copy.writeModel(toAdd.getModel());
} else {
copy = Resource.Factory.create();
}
return addTransformedRecursiveResourceFromRoot(absoluteAddress, read, copy);
}
@Override
public void addTransformedRecursiveResource(PathAddress relativeAddress, Resource resource) {
final PathAddress absoluteAddress = this.current.append(relativeAddress);
final PathAddress readAddress = this.read.append(relativeAddress);
addTransformedRecursiveResourceFromRoot(absoluteAddress, readAddress, resource);
}
private ResourceTransformationContext addTransformedRecursiveResourceFromRoot(final PathAddress absoluteAddress, final PathAddress read, final Resource toAdd) {
Resource model = this.root;
Resource parent = null;
if (absoluteAddress.size() > 0) {
final Iterator<PathElement> i = absoluteAddress.iterator();
while (i.hasNext()) {
final PathElement element = i.next();
if (element.isMultiTarget()) {
throw ControllerLogger.ROOT_LOGGER.cannotWriteTo("*");
}
if (!i.hasNext()) {
if (model.hasChild(element)) {
throw ControllerLogger.ROOT_LOGGER.duplicateResourceAddress(absoluteAddress);
} else {
parent = model;
model.registerChild(element, toAdd);
model = toAdd;
if (read.size() > 0) {
//We might be able to deal with this better in the future, but for now
//throw an error if the address was renamed and it was an ordered child type.
Set<String> parentOrderedChildren = parent.getOrderedChildTypes();
String readType = read.getLastElement().getKey();
if (parentOrderedChildren.contains(readType)) {
if (absoluteAddress.size() == 0 || !absoluteAddress.getLastElement().getKey().equals(readType)) {
throw ControllerLogger.ROOT_LOGGER.orderedChildTypeRenamed(read, absoluteAddress, readType, parentOrderedChildren);
}
}
}
}
} else {
model = model.getChild(element);
if (model == null) {
PathAddress ancestor = PathAddress.EMPTY_ADDRESS;
for (PathElement pe : absoluteAddress) {
ancestor = ancestor.append(pe);
if (element.equals(pe)) {
break;
}
}
throw ControllerLogger.ROOT_LOGGER.resourceNotFound(ancestor, absoluteAddress);
}
}
}
} else {
//If this was the root address, replace the resource model
model.writeModel(toAdd.getModel());
}
return new ResourceTransformationContextImpl(root, absoluteAddress, read, originalModel,
transformerOperationAttachment, ignoredTransformationRegistry);
}
@Override
public Resource readTransformedResource(final PathAddress relativeAddress) {
final PathAddress address = this.current.append(relativeAddress);
return Resource.Tools.navigate(root, address);
}
public TransformerEntry resolveTransformerEntry(PathAddress address) {
final TransformerEntry entry = originalModel.target.getTransformerEntry(this, address);
if (entry == null) {
return TransformerEntry.ALL_DEFAULTS;
}
return entry;
}
protected ResourceTransformer resolveTransformer(TransformerEntry entry, PathAddress address) {
final ResourceTransformer transformer;
try {
transformer = entry.getResourceTransformer();
} catch (NullPointerException e) {
//Temp for WFCORE-1270 to get some more information
NullPointerException npe = new NullPointerException("NPE for " + address);
npe.setStackTrace(e.getStackTrace());
throw npe;
}
if (transformer == null) {
final ImmutableManagementResourceRegistration childReg = originalModel.getRegistration(address);
if (childReg == null) {
return ResourceTransformer.DISCARD;
}
if (childReg.isRemote() || childReg.isRuntimeOnly()) {
return ResourceTransformer.DISCARD;
}
return ResourceTransformer.DEFAULT;
}
return transformer;
}
@Override
public void processChildren(final Resource resource) throws OperationFailedException {
final Set<String> types = resource.getChildTypes();
for (final String type : types) {
for (final Resource.ResourceEntry child : resource.getChildren(type)) {
processChild(child.getPathElement(), child);
}
}
}
@Override
public void processChild(final PathElement element, Resource child) throws OperationFailedException {
final PathAddress childAddress = read.append(element); // read
final TransformerEntry entry = resolveTransformerEntry(childAddress);
final PathAddressTransformer path = entry.getPathTransformation();
final PathAddress currentAddress = path.transform(element, new PathAddressTransformer.Builder() { // write
@Override
public PathAddress getOriginal() {
return childAddress;
}
@Override
public PathAddress getCurrent() {
return current;
}
@Override
public PathAddress getRemaining() {
return PathAddress.EMPTY_ADDRESS.append(element);
}
@Override
public PathAddress next(PathElement... elements) {
return current.append(elements);
}
});
final ResourceTransformer transformer = resolveTransformer(entry, childAddress);
final ResourceTransformationContext childContext =
new ResourceTransformationContextImpl(root, currentAddress, childAddress, originalModel,
transformerOperationAttachment, ignoredTransformationRegistry);
transformer.transformResource(childContext, currentAddress, child);
}
@Override
public TransformationTarget getTarget() {
return originalModel.target;
}
@Override
public ProcessType getProcessType() {
return originalModel.type;
}
@Override
public RunningMode getRunningMode() {
return originalModel.mode;
}
@Override
public ImmutableManagementResourceRegistration getResourceRegistration(PathAddress address) {
final PathAddress a = read.append(address);
return originalModel.getRegistration(a);
}
@Override
public ImmutableManagementResourceRegistration getResourceRegistrationFromRoot(PathAddress address) {
return originalModel.getRegistration(address);
}
@Override
public Resource readResource(PathAddress address) {
final PathAddress a = read.append(address);
return originalModel.get(a);
}
@Override
public Resource readResourceFromRoot(PathAddress address) {
return originalModel.get(address);
}
@Override
public Resource getTransformedRoot() {
return root;
}
@Deprecated
static ResourceTransformationContext createAliasContext(final PathAddress address, final ResourceTransformationContext context) {
if (context instanceof ResourceTransformationContextImpl) {
final ResourceTransformationContextImpl impl = (ResourceTransformationContextImpl) context;
return new ResourceTransformationContextImpl(impl.root, address, impl.read, impl.originalModel,
impl.transformerOperationAttachment, impl.ignoredTransformationRegistry);
} else {
throw new IllegalArgumentException("wrong context type");
}
}
@Deprecated
static TransformationContext wrapForOperation(TransformationContext context, ModelNode operation) {
if(context instanceof ResourceTransformationContextImpl) {
final ResourceTransformationContextImpl impl = (ResourceTransformationContextImpl) context;
return new ResourceTransformationContextImpl(impl.root,
PathAddress.pathAddress(operation.get(OP_ADDR)), impl.originalModel,
impl.transformerOperationAttachment, impl.ignoredTransformationRegistry);
} else {
return context;
}
}
@Override
public boolean isResourceTransformationIgnored(PathAddress address) {
return ignoredTransformationRegistry.isResourceTransformationIgnored(address);
}
@Override
public TransformersLogger getLogger() {
return logger;
}
@Override
public <V> V getAttachment(final OperationContext.AttachmentKey<V> key) {
if (transformerOperationAttachment == null) {
return null;
}
return transformerOperationAttachment.getAttachment(key);
}
@Override
public <V> V attach(final OperationContext.AttachmentKey<V> key, final V value) {
if (transformerOperationAttachment == null) {
return null;
}
return transformerOperationAttachment.attach(key, value);
}
@Override
public <V> V attachIfAbsent(final OperationContext.AttachmentKey<V> key, final V value) {
if (transformerOperationAttachment == null) {
return null;
}
return transformerOperationAttachment.attachIfAbsent(key, value);
}
@Override
public <V> V detach(final OperationContext.AttachmentKey<V> key) {
if (transformerOperationAttachment == null) {
return null;
}
return transformerOperationAttachment.detach(key);
}
static class OriginalModel {
private final Resource original;
private final RunningMode mode;
private final ProcessType type;
private final TransformationTarget target;
private final ImmutableManagementResourceRegistration registration;
OriginalModel(Resource original, RunningMode mode, ProcessType type, TransformationTarget target, ImmutableManagementResourceRegistration registration) {
this.original = original.clone();
this.mode = mode;
this.type = type;
this.target = target;
this.registration = registration;
}
Resource get(final PathAddress address) {
return original.navigate(address);
}
ImmutableManagementResourceRegistration getRegistration(PathAddress address) {
return registration.getSubModel(address);
}
}
}