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NodeAPI.go
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NodeAPI.go
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package generate
import (
"log"
"os"
"path/filepath"
"github.com/Adaptech/les/pkg/eml"
"github.com/Adaptech/les/pkg/eml/generate/nodejs"
"io/ioutil"
"path"
)
const nodeJsExt = ".js"
// NodeAPI Event Markup Language to a nodejs API
func NodeAPI(system eml.Solution, renderingDirectory string, infrastructureTemplateDirectory string) {
var nodeJsRenderingDirectory = renderingDirectory
var latestTemplateName, err = ioutil.ReadFile(path.Join(infrastructureTemplateDirectory, "nodejs", ".latest"))
if err != nil {
log.Fatalf("Can't read nodejs .latest: %s", err.Error())
}
var nodeJsTemplateDirectory = filepath.Join(infrastructureTemplateDirectory, "nodejs", string(latestTemplateName))
var eventsDirectory = filepath.Join(nodeJsRenderingDirectory, "src", "events")
var commandsDirectory = filepath.Join(nodeJsRenderingDirectory, "src", "commands")
var domainDirectory = filepath.Join(nodeJsRenderingDirectory, "src", "domain")
var controllerDirectory = filepath.Join(nodeJsRenderingDirectory, "src", "controllers")
var readmodelDirectory = filepath.Join(nodeJsRenderingDirectory, "src", "readModels")
deleteAllExceptNodeModules(nodeJsRenderingDirectory)
copyInfrastructureTemplate(nodeJsTemplateDirectory, nodeJsRenderingDirectory)
for _, boundedContext := range system.Contexts {
for _, stream := range boundedContext.Streams {
for _, event := range stream.Events {
renderedJavascript := nodejs.EventToJs(event)
writeRenderedEvent(eventsDirectory, nodejs.ToNodeJsClassName(event.Event.Name), renderedJavascript, nodeJsExt)
}
for _, command := range stream.Commands {
renderedJavascript := nodejs.CommandToJs(command)
writeRenderedCommand(commandsDirectory, nodejs.ToNodeJsClassName(command.Command.Name), renderedJavascript, nodeJsExt)
}
renderedJavaScript := nodejs.DomainJs(stream, stream.Events)
writeRenderedAggregate(domainDirectory, stream.Name, renderedJavaScript, nodeJsExt)
renderedJavaScript = nodejs.ControllerJs(stream, readmodelLookupFor(boundedContext))
writeRenderedController(controllerDirectory, stream.Name, renderedJavaScript, nodeJsExt)
}
eventLookup := make(map[string]eml.Event)
for _, stream := range boundedContext.Streams {
for _, event := range stream.Events {
eventLookup[event.Event.Name] = event
}
}
for _, readmodel := range boundedContext.Readmodels {
readModelJs := nodejs.ReadmodelsToJs(readmodel, eventLookup)
writeRenderedReadmodel(readmodelDirectory, nodejs.ToNodeJsClassName(readmodel.Readmodel.Name), readModelJs, nodeJsExt)
}
}
}
func deleteAllExceptNodeModules(nodeJsRenderingDirectory string) {
files, err := filepath.Glob(filepath.Join(nodeJsRenderingDirectory, "*.*"))
if err != nil {
panic(err)
}
for _, f := range files {
if err := os.Remove(f); err != nil {
panic(err)
}
}
if err := os.RemoveAll(filepath.Join(nodeJsRenderingDirectory, "Dockerfile")); err != nil {
log.Fatalf("NodeAPI deletePreviouslyRendered failed: %v", err)
}
if err := os.RemoveAll(filepath.Join(nodeJsRenderingDirectory, "config")); err != nil {
log.Fatalf("NodeAPI deletePreviouslyRendered failed: %v", err)
}
if err := os.RemoveAll(filepath.Join(nodeJsRenderingDirectory, "src")); err != nil {
log.Fatalf("NodeAPI deletePreviouslyRendered failed: %v", err)
}
if err := os.RemoveAll(filepath.Join(nodeJsRenderingDirectory, "test")); err != nil {
log.Fatalf("NodeAPI deletePreviouslyRendered failed: %v", err)
}
if err := os.RemoveAll(filepath.Join(nodeJsRenderingDirectory, "web")); err != nil {
log.Fatalf("NodeAPI deletePreviouslyRendered failed: %v", err)
}
}
func readmodelLookupFor(boundedContext eml.BoundedContext) map[string]eml.Readmodel {
readmodelLookup := make(map[string]eml.Readmodel)
for _, readmodel := range boundedContext.Readmodels {
readmodelLookup[readmodel.Readmodel.Name] = readmodel
}
return readmodelLookup
}