| /* |
| 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 bindings |
| |
| import ( |
| "encoding/json" |
| "net/url" |
| "strings" |
| |
| v1 "github.com/apache/camel-k/pkg/apis/camel/v1" |
| knativeapis "github.com/apache/camel-k/pkg/apis/camel/v1/knative" |
| "github.com/apache/camel-k/pkg/apis/camel/v1alpha1" |
| "github.com/apache/camel-k/pkg/util/uri" |
| ) |
| |
| // KnativeURIBindingProvider converts a HTTP/HTTPS URI into a Camel Knative endpoint (to call it via CloudEvents). |
| type KnativeURIBindingProvider struct{} |
| |
| func (k KnativeURIBindingProvider) ID() string { |
| return "knative-uri" |
| } |
| |
| func (k KnativeURIBindingProvider) Translate(ctx BindingContext, endpointType v1alpha1.EndpointType, e v1alpha1.Endpoint) (*Binding, error) { |
| if e.URI == nil { |
| // works only on uris |
| return nil, nil |
| } |
| if ctx.Profile != v1.TraitProfileKnative { |
| // use cloudevent binding only in Knative trait profile |
| return nil, nil |
| } |
| if !strings.HasPrefix(*e.URI, "http:") && !strings.HasPrefix(*e.URI, "https:") { |
| // only translates http/https uri to Knative calls |
| return nil, nil |
| } |
| if endpointType == v1alpha1.EndpointTypeSource { |
| // HTTP/HTTPS uri are translated to Knative endpoints only when used as sinks |
| return nil, nil |
| } |
| |
| knativeConfig := make(map[string]interface{}) |
| originalURI, err := url.Parse(*e.URI) |
| if err != nil { |
| return nil, err |
| } |
| env := knativeapis.NewCamelEnvironment() |
| svc, err := knativeapis.BuildCamelServiceDefinition("sink", |
| knativeapis.CamelEndpointKindSink, |
| knativeapis.CamelServiceTypeEndpoint, |
| *originalURI, "", "") |
| if err != nil { |
| return nil, err |
| } |
| env.Services = append(env.Services, svc) |
| config, err := env.Serialize() |
| if err != nil { |
| return nil, err |
| } |
| knativeConfig["configuration"] = config |
| knativeConfigJSON, err := json.Marshal(knativeConfig) |
| if err != nil { |
| return nil, err |
| } |
| |
| // Rewrite URI to match the service definition |
| serviceURI := "knative:endpoint/sink" |
| props, err := e.Properties.GetPropertyMap() |
| if err != nil { |
| return nil, err |
| } |
| serviceURI = uri.AppendParameters(serviceURI, props) |
| |
| return &Binding{ |
| URI: serviceURI, |
| Traits: map[string]v1.TraitSpec{ |
| "knative": { |
| Configuration: v1.TraitConfiguration{ |
| RawMessage: knativeConfigJSON, |
| }, |
| }, |
| }, |
| }, nil |
| } |
| |
| func (k KnativeURIBindingProvider) Order() int { |
| return OrderStandard |
| } |
| |
| func init() { |
| RegisterBindingProvider(KnativeURIBindingProvider{}) |
| } |