io.nosqlbench.virtdata.library.basics.shared.unary_int.Expr Maven / Gradle / Ivy
package io.nosqlbench.virtdata.library.basics.shared.unary_int;
import io.nosqlbench.virtdata.api.annotations.Categories;
import io.nosqlbench.virtdata.api.annotations.Category;
import io.nosqlbench.virtdata.api.annotations.ThreadSafeMapper;
import io.nosqlbench.virtdata.library.basics.core.MVELExpr;
import io.nosqlbench.virtdata.library.basics.core.threadstate.SharedState;
import org.mvel2.MVEL;
import java.io.Serializable;
import java.util.HashMap;
import java.util.function.IntUnaryOperator;
@ThreadSafeMapper
@Categories({Category.functional})
public class Expr implements IntUnaryOperator {
private final String expr;
private final Serializable compiledExpr;
public Expr(String expr) {
this.expr = expr;
this.compiledExpr = MVELExpr.compile(int.class, "cycle", expr);
}
@Override
public int applyAsInt(int operand) {
HashMap map = SharedState.tl_ObjectMap.get();
map.put("cycle",operand);
int result = MVEL.executeExpression(compiledExpr, map, int.class);
return result;
}
}