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/*
* JBoss, Home of Professional Open Source.
* Copyright 2018, 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.clustering.controller;
import java.util.function.Function;
import org.jboss.as.controller.CapabilityReferenceRecorder;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.capability.RuntimeCapability;
import org.jboss.as.controller.registry.Resource;
import org.wildfly.clustering.service.BinaryRequirement;
import org.wildfly.clustering.service.Requirement;
import org.wildfly.clustering.service.UnaryRequirement;
/**
* {@link CapabilityReferenceRecorder} for resource-level capability references.
* @author Paul Ferraro
*/
public class ResourceCapabilityReference extends AbstractCapabilityReference {
private final Function requirementNameResolver;
/**
* Creates a new reference between the specified capability and the specified requirement
* @param capability the capability referencing the specified requirement
* @param requirement the requirement of the specified capability
* @param requirementNameResolver function for resolving the dynamic elements of the requirement name
*/
public ResourceCapabilityReference(Capability capability, Requirement requirement) {
this(capability, requirement, new SimpleCapabilityNameResolver());
}
/**
* Creates a new reference between the specified capability and the specified requirement
* @param capability the capability referencing the specified requirement
* @param requirement the requirement of the specified capability
* @param requirementNameResolver function for resolving the dynamic elements of the requirement name
*/
public ResourceCapabilityReference(Capability capability, UnaryRequirement requirement, UnaryCapabilityNameResolver requirementNameResolver) {
this(capability, (Requirement) requirement, requirementNameResolver);
}
/**
* Creates a new reference between the specified capability and the specified requirement
* @param capability the capability referencing the specified requirement
* @param requirement the requirement of the specified capability
* @param requirementNameResolver function for resolving the dynamic elements of the requirement name
*/
public ResourceCapabilityReference(Capability capability, BinaryRequirement requirement, BinaryCapabilityNameResolver requirementNameResolver) {
this(capability, (Requirement) requirement, requirementNameResolver);
}
private ResourceCapabilityReference(Capability capability, Requirement requirement, Function requirementNameResolver) {
super(capability, requirement);
this.requirementNameResolver = requirementNameResolver;
}
@Override
public void addCapabilityRequirements(OperationContext context, Resource resource, String attributeName, String... values) {
context.registerAdditionalCapabilityRequirement(this.getRequirementName(context), this.getDependentName(context), attributeName);
}
@Override
public void removeCapabilityRequirements(OperationContext context, Resource resource, String attributeName, String... values) {
context.deregisterCapabilityRequirement(this.getRequirementName(context), this.getDependentName(context));
}
private String getRequirementName(OperationContext context) {
String[] parts = this.requirementNameResolver.apply(context.getCurrentAddress());
return (parts.length > 0) ? RuntimeCapability.buildDynamicCapabilityName(this.getBaseRequirementName(), parts) : this.getBaseRequirementName();
}
@Override
public String[] getRequirementPatternSegments(String name, PathAddress address) {
String[] segments = this.requirementNameResolver.apply(address);
for (int i = 0; i < segments.length; ++i) {
String segment = segments[i];
if (segment.charAt(0) == '$') {
segments[i] = segment.substring(1);
}
}
return segments;
}
}