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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.prelude.semantics.rule;
import com.yahoo.prelude.semantics.engine.RuleEvaluation;
/**
* A condition given a name which enables it to be referenced from other conditions.
*
* @author bratseth
*/
public class NamedCondition {
private String conditionName;
private Condition condition;
public NamedCondition(String name,Condition condition) {
this.conditionName=name;
this.condition=condition;
}
public String getName() { return conditionName; }
public void setName(String name) { this.conditionName = name; }
public Condition getCondition() { return condition; }
public void setCondition(Condition condition) { this.condition = condition; }
public boolean matches(RuleEvaluation e) {
if (e.getTraceLevel()>=3) {
e.trace(3,"Evaluating '" + this + "' at " + e.currentItem());
e.indentTrace();
}
boolean matches=condition.matches(e);
if (e.getTraceLevel()>=3) {
e.unindentTrace();
if (matches)
e.trace(3,"Matched '" + this + "' at " + e.previousItem());
else if (e.getTraceLevel()>=4)
e.trace(4,"Did not match '" + this + "' at " + e.currentItem());
}
return matches;
}
/**
* Returns the canonical string representation of this named condition.
* This string representation can always be reparsed to produce an
* identical rule to this one.
*/
public String toString() {
return "[" + conditionName + "] :- " + condition.toString();
}
}
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