forked from apache/camel-k
/
catalog.go
216 lines (190 loc) · 4.75 KB
/
catalog.go
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/*
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 trait
import (
"reflect"
"strings"
"github.com/sirupsen/logrus"
"github.com/apache/camel-k/pkg/apis/camel/v1alpha1"
"github.com/fatih/structs"
)
// Catalog collects all information about traits in one place
type Catalog struct {
tDebug Trait
tDependencies Trait
tDeployment Trait
tKnative Trait
tService Trait
tRoute Trait
tIngress Trait
tOwner Trait
tBuilder Trait
tSpringBoot Trait
tIstio Trait
tEnvironment Trait
}
// NewCatalog creates a new trait Catalog
func NewCatalog() *Catalog {
return &Catalog{
tDebug: newDebugTrait(),
tDependencies: newDependenciesTrait(),
tDeployment: newDeploymentTrait(),
tKnative: newKnativeTrait(),
tService: newServiceTrait(),
tRoute: newRouteTrait(),
tIngress: newIngressTrait(),
tOwner: newOwnerTrait(),
tBuilder: newBuilderTrait(),
tSpringBoot: newSpringBootTrait(),
tIstio: newIstioTrait(),
tEnvironment: newEnvironmentTrait(),
}
}
func (c *Catalog) allTraits() []Trait {
return []Trait{
c.tDebug,
c.tDependencies,
c.tDeployment,
c.tKnative,
c.tService,
c.tRoute,
c.tIngress,
c.tOwner,
c.tBuilder,
c.tSpringBoot,
c.tIstio,
c.tEnvironment,
}
}
func (c *Catalog) traitsFor(environment *Environment) []Trait {
switch environment.DetermineProfile() {
case v1alpha1.TraitProfileOpenShift:
return []Trait{
c.tDebug,
c.tDependencies,
c.tBuilder,
c.tSpringBoot,
c.tEnvironment,
c.tDeployment,
c.tService,
c.tRoute,
c.tOwner,
}
case v1alpha1.TraitProfileKubernetes:
return []Trait{
c.tDebug,
c.tDependencies,
c.tBuilder,
c.tSpringBoot,
c.tEnvironment,
c.tDeployment,
c.tService,
c.tIngress,
c.tOwner,
}
case v1alpha1.TraitProfileKnative:
return []Trait{
c.tDebug,
c.tDependencies,
c.tBuilder,
c.tSpringBoot,
c.tEnvironment,
c.tKnative,
c.tDeployment,
c.tIstio,
c.tOwner,
}
}
return nil
}
func (c *Catalog) apply(environment *Environment) error {
if err := c.configure(environment); err != nil {
return err
}
traits := c.traitsFor(environment)
for _, trait := range traits {
enabled, err := trait.Configure(environment)
if err != nil {
return err
}
if enabled {
logrus.Infof("Apply trait: %s", trait.ID())
err = trait.Apply(environment)
if err != nil {
return err
}
environment.ExecutedTraits = append(environment.ExecutedTraits, trait)
}
}
return nil
}
// GetTrait returns the trait with the given ID
func (c *Catalog) GetTrait(id string) Trait {
for _, t := range c.allTraits() {
if t.ID() == ID(id) {
return t
}
}
return nil
}
func (c *Catalog) configure(env *Environment) error {
if env.Context != nil && env.Context.Spec.Traits != nil {
for id, traitSpec := range env.Context.Spec.Traits {
catTrait := c.GetTrait(id)
if catTrait != nil {
if err := traitSpec.Decode(catTrait); err != nil {
return err
}
}
}
}
if env.Integration != nil && env.Integration.Spec.Traits != nil {
for id, traitSpec := range env.Integration.Spec.Traits {
catTrait := c.GetTrait(id)
if catTrait != nil {
if err := traitSpec.Decode(catTrait); err != nil {
return err
}
}
}
}
return nil
}
// ComputeTraitsProperties returns all key/value configuration properties that can be used to configure traits
func (c *Catalog) ComputeTraitsProperties() []string {
results := make([]string, 0)
for _, trait := range c.allTraits() {
trait := trait // pin
c.processFields(structs.Fields(trait), func(name string) {
results = append(results, string(trait.ID())+"."+name)
})
}
return results
}
func (c *Catalog) processFields(fields []*structs.Field, processor func(string)) {
for _, f := range fields {
if f.IsEmbedded() && f.IsExported() && f.Kind() == reflect.Struct {
c.processFields(f.Fields(), processor)
}
if f.IsEmbedded() {
continue
}
property := f.Tag("property")
if property != "" {
items := strings.Split(property, ",")
processor(items[0])
}
}
}