github.com/zntrio/harp/v2@v2.0.9/pkg/sdk/value/identity/identity.go (about)

     1  // Licensed to Elasticsearch B.V. under one or more contributor
     2  // license agreements. See the NOTICE file distributed with
     3  // this work for additional information regarding copyright
     4  // ownership. Elasticsearch B.V. licenses this file to you under
     5  // the Apache License, Version 2.0 (the "License"); you may
     6  // not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing,
    12  // software distributed under the License is distributed on an
    13  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    14  // KIND, either express or implied.  See the License for the
    15  // specific language governing permissions and limitations
    16  // under the License.
    17  
    18  package identity
    19  
    20  import (
    21  	"context"
    22  
    23  	"github.com/zntrio/harp/v2/pkg/sdk/value"
    24  )
    25  
    26  type identityTransformer struct{}
    27  
    28  // Transformer returns a non-operation transformer.
    29  func Transformer() value.Transformer {
    30  	return &identityTransformer{}
    31  }
    32  
    33  // -----------------------------------------------------------------------------
    34  
    35  func (t *identityTransformer) From(_ context.Context, in []byte) ([]byte, error) {
    36  	return in, nil
    37  }
    38  
    39  func (t *identityTransformer) To(_ context.Context, in []byte) ([]byte, error) {
    40  	return in, nil
    41  }