package org.jboss.as.clustering.infinispan.subsystem;
import static org.jboss.as.controller.ControllerMessages.MESSAGES;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.NAME;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Map;
import org.jboss.as.controller.AttributeDefinition;
import org.jboss.as.controller.OperationContext;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.OperationStepHandler;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.operations.validation.ParametersValidator;
import org.jboss.as.controller.operations.validation.StringLengthValidator;
import org.jboss.as.controller.registry.AttributeAccess;
import org.jboss.as.controller.registry.ManagementResourceRegistration;
import org.jboss.dmr.ModelNode;
/**
* Attribute handler for cache-container resource.
*
* @author Richard Achmatowicz (c) 2011 Red Hat Inc.
*/
public class CacheContainerReadAttributeHandler implements OperationStepHandler {
public static final CacheContainerReadAttributeHandler INSTANCE = new CacheContainerReadAttributeHandler();
private final ParametersValidator nameValidator = new ParametersValidator();
private final Map<String, AttributeDefinition> attributeDefinitions ;
private CacheContainerReadAttributeHandler() {
this(CommonAttributes.CACHE_CONTAINER_ATTRIBUTES);
}
private CacheContainerReadAttributeHandler(final AttributeDefinition... definitions) {
assert definitions != null : MESSAGES.nullVar("definitions").getLocalizedMessage();
this.nameValidator.registerValidator(NAME, new StringLengthValidator(1));
this.attributeDefinitions = new HashMap<String, AttributeDefinition>();
for (AttributeDefinition def : definitions) {
this.attributeDefinitions.put(def.getName(), def);
}
}
/**
* A read handler which preforms special processing for ALIAS attributes
*
* @param context the operation context
* @param operation the operation being executed
* @throws OperationFailedException
*/
@Override
public void execute(OperationContext context, ModelNode operation) throws OperationFailedException {
nameValidator.validate(operation);
final String attributeName = operation.require(NAME).asString();
final ModelNode submodel = context.readResource(PathAddress.EMPTY_ADDRESS).getModel();
final ModelNode currentValue = submodel.get(attributeName).clone();
context.getResult().set(currentValue);
// since we are not updating the model, there is no need for a RUNTIME step
context.completeStep(OperationContext.RollbackHandler.NOOP_ROLLBACK_HANDLER);
}
public void registerAttributes(final ManagementResourceRegistration registry) {
final EnumSet<AttributeAccess.Flag> flags = EnumSet.of(AttributeAccess.Flag.RESTART_ALL_SERVICES);
for (AttributeDefinition attr : CommonAttributes.CACHE_CONTAINER_ATTRIBUTES) {
registry.registerReadWriteAttribute(attr.getName(), this, CacheContainerWriteAttributeHandler.INSTANCE, flags);
}
}
protected AttributeDefinition getAttributeDefinition(final String attributeName) {
return attributeDefinitions == null ? null : attributeDefinitions.get(attributeName);
}
}