org.jboss.as.clustering.controller.OperationFunction Maven / Gradle / Ivy
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package org.jboss.as.clustering.controller;
import java.util.function.Function;
import org.jboss.as.controller.ExpressionResolver;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.dmr.ModelNode;
import org.wildfly.common.function.ExceptionFunction;
/**
* A functional view of a runtime operation.
* @author Paul Ferraro
* @param the type of value provided by the service on which the given runtime operation operates
* @param the type of the value of which the given runtime operation operates
*/
public class OperationFunction implements ExceptionFunction {
private final ExpressionResolver resolver;
private final ModelNode operation;
private final Function mapper;
private final Operation executable;
/**
* Creates a functional view of the specified metric using the specified mapping function.
* @param resolver an expression resolver
* @param operation the management operation
* @param mapper maps the value of a service to the value on which the given metric operates
* @param executable a runtime operation
*/
public OperationFunction(ExpressionResolver resolver, ModelNode operation, Function mapper, Operation executable) {
this.resolver = resolver;
this.operation = operation;
this.mapper = mapper;
this.executable = executable;
}
@Override
public ModelNode apply(T value) throws OperationFailedException {
V mapped = this.mapper.apply(value);
return (mapped != null) ? this.executable.execute(this.resolver, this.operation, mapped) : null;
}
}