/*
* JBoss, Home of Professional Open Source.
* Copyright 2013, 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.description;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jboss.as.controller.PathElement;
import org.jboss.as.controller.descriptions.ModelDescriptionConstants;
import org.jboss.as.controller.transform.OperationTransformer;
import org.jboss.as.controller.transform.PathAddressTransformer;
import org.jboss.as.controller.transform.ResourceTransformer;
/**
* @author Emanuel Muckenhuber
*/
abstract class AbstractTransformationDescriptionBuilder implements TransformationDescriptionBuilder {
protected final PathElement pathElement;
protected PathAddressTransformer pathAddressTransformer;
protected ResourceTransformer resourceTransformer;
protected OperationTransformer operationTransformer;
protected final Map<String, OperationTransformationEntry> operationTransformers = new HashMap<String, OperationTransformationEntry>();
protected final List<TransformationDescriptionBuilder> children = new ArrayList<TransformationDescriptionBuilder>();
protected AbstractTransformationDescriptionBuilder(PathElement pathElement, PathAddressTransformer pathAddressTransformer,
ResourceTransformer resourceTransformer, OperationTransformer operationTransformer) {
this.pathElement = pathElement;
this.pathAddressTransformer = pathAddressTransformer;
this.resourceTransformer = resourceTransformer;
this.operationTransformer = operationTransformer;
}
public TransformationDescriptionBuilder setResourceTransformer(ResourceTransformer resourceTransformer) {
this.resourceTransformer = resourceTransformer;
return this;
}
void addOperationTransformerEntry(String operationName, OperationTransformationEntry transformer) {
operationTransformers.put(operationName, transformer);
}
protected TransformationDescription buildDefault(final DiscardPolicy discardPolicy, boolean inherited, final AttributeTransformationDescriptionBuilderImpl.AttributeTransformationDescriptionBuilderRegistry registry) {
return buildDefault(discardPolicy, inherited, registry, Collections.<String>emptyList());
}
/**
* Build the default transformation description.
*
* @param discardPolicy the discard policy to use
* @param inherited whether the definition is inherited
* @param registry the attribute transformation rules for the resource
* @param discardedOperations the discarded operations
* @return the transformation description
*/
protected TransformationDescription buildDefault(final DiscardPolicy discardPolicy, boolean inherited, final AttributeTransformationDescriptionBuilderImpl.AttributeTransformationDescriptionBuilderRegistry registry, List<String> discardedOperations) {
// Build attribute rules
final Map<String, AttributeTransformationDescription> attributes = registry.buildAttributes();
// Create operation transformers
final Map<String, OperationTransformer> operations = buildOperationTransformers(registry);
// Process children
final List<TransformationDescription> children = buildChildren();
if (discardPolicy == DiscardPolicy.NEVER) {
// TODO override more global operations?
if(! operations.containsKey(ModelDescriptionConstants.WRITE_ATTRIBUTE_OPERATION)) {
operations.put(ModelDescriptionConstants.WRITE_ATTRIBUTE_OPERATION, OperationTransformationRules.createWriteOperation(attributes));
}
if(! operations.containsKey(ModelDescriptionConstants.UNDEFINE_ATTRIBUTE_OPERATION)) {
operations.put(ModelDescriptionConstants.UNDEFINE_ATTRIBUTE_OPERATION, OperationTransformationRules.createUndefinedOperation(attributes));
}
}
// Create the description
return new TransformingDescription(pathElement, pathAddressTransformer, discardPolicy, inherited, resourceTransformer, attributes, operations, children, discardedOperations);
}
/**
* Build the operation transformers.
*
* @param registry the shared resource registry
* @return the operation transformers
*/
protected Map<String, OperationTransformer> buildOperationTransformers(AttributeTransformationDescriptionBuilderImpl.AttributeTransformationDescriptionBuilderRegistry registry) {
final Map<String, OperationTransformer> operations = new HashMap<String, OperationTransformer>();
for(final Map.Entry<String, OperationTransformationEntry> entry: operationTransformers.entrySet()) {
final OperationTransformer transformer = entry.getValue().getOperationTransformer(registry);
operations.put(entry.getKey(), transformer);
}
return operations;
}
/**
* Build all children.
*
* @return the child descriptions
*/
protected List<TransformationDescription> buildChildren() {
if(children.isEmpty()) {
return Collections.emptyList();
}
final List<TransformationDescription> children = new ArrayList<TransformationDescription>();
for(final TransformationDescriptionBuilder builder : this.children) {
children.add(builder.build());
}
return children;
}
abstract static class OperationTransformationEntry {
/**
* Get the operation transformer.
*
* @param resourceRegistry the attribute transformation description for the resource
* @return the operation transformer
*/
abstract OperationTransformer getOperationTransformer(AttributeTransformationDescriptionBuilderImpl.AttributeTransformationDescriptionBuilderRegistry resourceRegistry);
}
}