org.graylog.plugins.pipelineprocessor.functions.dates.periods.PeriodParseFunction 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.functions.dates.periods;
import org.graylog.plugins.pipelineprocessor.EvaluationContext;
import org.graylog.plugins.pipelineprocessor.ast.functions.AbstractFunction;
import org.graylog.plugins.pipelineprocessor.ast.functions.FunctionArgs;
import org.graylog.plugins.pipelineprocessor.ast.functions.FunctionDescriptor;
import org.graylog.plugins.pipelineprocessor.ast.functions.ParameterDescriptor;
import org.joda.time.Period;
public class PeriodParseFunction extends AbstractFunction {
public static final String NAME = "period";
private final ParameterDescriptor value =
ParameterDescriptor
.string("value", Period.class)
.transform(Period::parse)
.build();
@Override
public Period evaluate(FunctionArgs args, EvaluationContext context) {
return value.required(args, context);
}
@Override
public FunctionDescriptor descriptor() {
return FunctionDescriptor.builder()
.name(NAME)
.description("Parses a ISO 8601 period from the specified string.")
.pure(true)
.returnType(Period.class)
.params(value)
.build();
}
}