org.graylog.plugins.pipelineprocessor.ast.functions.AbstractFunction Maven / Gradle / Ivy
/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog.plugins.pipelineprocessor.ast.functions;
import org.graylog.plugins.pipelineprocessor.EvaluationContext;
import org.graylog.plugins.pipelineprocessor.ast.expressions.Expression;
/**
* Helper Function implementation which evaluates and memoizes all constant FunctionArgs.
*
* @param the return type
*/
public abstract class AbstractFunction implements Function {
@Override
public Object preComputeConstantArgument(FunctionArgs args, String name, Expression arg) {
return arg.evaluateUnsafe(EvaluationContext.emptyContext());
}
}