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func_is_list.go
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/
func_is_list.go
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package ottlfuncs // import "github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl/ottlfuncs"
import (
"context"
"fmt"
"go.opentelemetry.io/collector/pdata/pcommon"
"go.opentelemetry.io/collector/pdata/plog"
"go.opentelemetry.io/collector/pdata/pmetric"
"go.opentelemetry.io/collector/pdata/ptrace"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl"
)
type IsListArguments[K any] struct {
Target ottl.Getter[K]
}
func NewIsListFactory[K any]() ottl.Factory[K] {
return ottl.NewFactory("IsList", &IsListArguments[K]{}, createIsListFunction[K])
}
func createIsListFunction[K any](_ ottl.FunctionContext, oArgs ottl.Arguments) (ottl.ExprFunc[K], error) {
args, ok := oArgs.(*IsListArguments[K])
if !ok {
return nil, fmt.Errorf("IsListFactory args must be of type *IsListArguments[K]")
}
return isList(args.Target), nil
}
func isList[K any](target ottl.Getter[K]) ottl.ExprFunc[K] {
return func(ctx context.Context, tCtx K) (any, error) {
val, err := target.Get(ctx, tCtx)
if err != nil {
return false, err
}
switch valType := val.(type) {
case pcommon.Value:
return valType.Type() == pcommon.ValueTypeSlice, nil
case pcommon.Slice, plog.LogRecordSlice, plog.ResourceLogsSlice, plog.ScopeLogsSlice, pmetric.ExemplarSlice, pmetric.ExponentialHistogramDataPointSlice, pmetric.HistogramDataPointSlice, pmetric.MetricSlice, pmetric.NumberDataPointSlice, pmetric.ResourceMetricsSlice, pmetric.ScopeMetricsSlice, pmetric.SummaryDataPointSlice, pmetric.SummaryDataPointValueAtQuantileSlice, ptrace.ResourceSpansSlice, ptrace.ScopeSpansSlice, ptrace.SpanEventSlice, ptrace.SpanLinkSlice, ptrace.SpanSlice, []string, []bool, []int64, []float64, [][]byte, []any:
return true, nil
}
return false, nil
}
}