43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
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// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package conditions
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import "fmt"
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// Not is a condition that negates its inner condition.
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type Not struct {
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inner Condition
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}
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// NewNotCondition builds a new Not condition that negates the provided Condition.
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func NewNotCondition(c Condition) (Not, error) {
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if c == nil {
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return Not{}, fmt.Errorf("Empty not conditions are not allowed")
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}
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return Not{c}, nil
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}
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// Check determines whether the given event matches this condition.
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func (c Not) Check(event ValuesMap) bool {
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return !c.inner.Check(event)
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}
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func (c Not) String() string {
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return "!" + c.inner.String()
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}
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