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// Copyright 2015 go-swagger maintainers
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package runtime
import (
"bytes"
"encoding/csv"
"errors"
"io"
)
// CSVConsumer creates a new CSV consumer
func CSVConsumer() Consumer {
return ConsumerFunc(func(reader io.Reader, data interface{}) error {
if reader == nil {
return errors.New("CSVConsumer requires a reader")
}
csvReader := csv.NewReader(reader)
writer, ok := data.(io.Writer)
if !ok {
return errors.New("data type must be io.Writer")
}
csvWriter := csv.NewWriter(writer)
records, err := csvReader.ReadAll()
if err != nil {
return err
}
for _, r := range records {
if err := csvWriter.Write(r); err != nil {
return err
}
}
csvWriter.Flush()
return nil
})
}
// CSVProducer creates a new CSV producer
func CSVProducer() Producer {
return ProducerFunc(func(writer io.Writer, data interface{}) error {
if writer == nil {
return errors.New("CSVProducer requires a writer")
}
dataBytes, ok := data.([]byte)
if !ok {
return errors.New("data type must be byte array")
}
csvReader := csv.NewReader(bytes.NewBuffer(dataBytes))
records, err := csvReader.ReadAll()
if err != nil {
return err
}
csvWriter := csv.NewWriter(writer)
for _, r := range records {
if err := csvWriter.Write(r); err != nil {
return err
}
}
csvWriter.Flush()
return nil
})
}
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