EvictionBuilder.java example

Explorer
wildfly-master
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 * Lesser General Public License for more details.
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package org.jboss.as.clustering.infinispan.subsystem;

import static org.jboss.as.clustering.infinispan.subsystem.EvictionResourceDefinition.Attribute.MAX_ENTRIES;
import static org.jboss.as.clustering.infinispan.subsystem.EvictionResourceDefinition.Attribute.STRATEGY;

import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.configuration.cache.EvictionConfiguration;
import org.infinispan.configuration.cache.EvictionConfigurationBuilder;
import org.infinispan.eviction.EvictionStrategy;
import org.infinispan.eviction.EvictionType;
import org.jboss.as.clustering.controller.ResourceServiceBuilder;
import org.jboss.as.clustering.dmr.ModelNodes;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.PathAddress;
import org.jboss.dmr.ModelNode;
import org.wildfly.clustering.service.Builder;

/**
 * @author Paul Ferraro
 */
public class EvictionBuilder extends ComponentBuilder<EvictionConfiguration> implements ResourceServiceBuilder<EvictionConfiguration> {

    private final EvictionConfigurationBuilder builder = new ConfigurationBuilder().eviction();

    private volatile EvictionStrategy strategy;

    EvictionBuilder(PathAddress cacheAddress) {
        super(CacheComponent.EVICTION, cacheAddress);
    }

    @Override
    public Builder<EvictionConfiguration> configure(OperationContext context, ModelNode model) throws OperationFailedException {
        this.strategy = ModelNodes.asEnum(STRATEGY.resolveModelAttribute(context, model), EvictionStrategy.class);
        // Use MANUAL instead of NONE to silence log WARNs on cache configuration validation
        this.builder.strategy(this.strategy.isEnabled() ? this.strategy : EvictionStrategy.MANUAL);
        if (this.strategy.isEnabled()) {
            this.builder.type(EvictionType.COUNT).size(MAX_ENTRIES.resolveModelAttribute(context, model).asLong());
        }
        return this;
    }

    @Override
    public EvictionConfiguration getValue() {
        return this.builder.create();
    }
}