| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 flow |
| |
| import ( |
| "bytes" |
| "encoding/json" |
| "fmt" |
| "io" |
| "io/ioutil" |
| |
| yaml2 "gopkg.in/yaml.v2" |
| |
| "k8s.io/apimachinery/pkg/util/yaml" |
| |
| v1 "github.com/apache/camel-k/pkg/apis/camel/v1" |
| ) |
| |
| // UnmarshalString reads flows contained in a string |
| func UnmarshalString(flowsString string) ([]v1.Flow, error) { |
| return Unmarshal(bytes.NewReader([]byte(flowsString))) |
| } |
| |
| // Unmarshal flows from a stream |
| func Unmarshal(reader io.Reader) ([]v1.Flow, error) { |
| buffered, err := ioutil.ReadAll(reader) |
| if err != nil { |
| return nil, err |
| } |
| var flows []v1.Flow |
| // Using the Kubernetes decoder to turn them into JSON before unmarshal. |
| // This avoids having map[interface{}]interface{} objects which are not JSON compatible. |
| jsonData, err := yaml.ToJSON(buffered) |
| if err != nil { |
| return nil, err |
| } |
| |
| if err = json.Unmarshal(jsonData, &flows); err != nil { |
| return nil, err |
| } |
| return flows, err |
| } |
| |
| // Marshal flows as byte array |
| func Marshal(flows []v1.Flow) ([]byte, error) { |
| data, err := json.Marshal(&flows) |
| if err != nil { |
| return nil, err |
| } |
| jsondata := make([]map[string]interface{}, 0) |
| err = json.Unmarshal(data, &jsondata) |
| if err != nil { |
| return nil, fmt.Errorf("error unmarshalling json: %v", err) |
| } |
| yamldata, err := yaml2.Marshal(&jsondata) |
| if err != nil { |
| return nil, fmt.Errorf("error marshalling to yaml: %v", err) |
| } |
| |
| return yamldata, nil |
| } |