103 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			103 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package service
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import (
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	"context"
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	"github.com/micro/go-micro/v2/client"
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	"github.com/micro/go-micro/v2/config/source"
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	proto "github.com/micro/go-micro/v2/config/source/service/proto"
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	"github.com/micro/go-micro/v2/logger"
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)
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var (
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	DefaultName      = "go.micro.config"
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	DefaultNamespace = "global"
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	DefaultPath      = ""
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)
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type service struct {
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	serviceName string
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	namespace   string
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	path        string
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	opts        source.Options
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	client      proto.ConfigService
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}
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func (m *service) Read() (set *source.ChangeSet, err error) {
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	client := proto.NewConfigService(m.serviceName, m.opts.Client)
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	req, err := client.Read(context.Background(), &proto.ReadRequest{
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		Namespace: m.namespace,
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		Path:      m.path,
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	})
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	if err != nil {
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		return nil, err
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	}
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	return toChangeSet(req.Change.ChangeSet), nil
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}
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func (m *service) Watch() (w source.Watcher, err error) {
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	client := proto.NewConfigService(m.serviceName, m.opts.Client)
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	stream, err := client.Watch(context.Background(), &proto.WatchRequest{
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		Namespace: m.namespace,
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		Path:      m.path,
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	})
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	if err != nil {
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		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
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			logger.Error("watch err: ", err)
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		}
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		return
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	}
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	return newWatcher(stream)
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}
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// Write is unsupported
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func (m *service) Write(cs *source.ChangeSet) error {
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	return nil
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}
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func (m *service) String() string {
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	return "service"
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}
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func NewSource(opts ...source.Option) source.Source {
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	var options source.Options
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	for _, o := range opts {
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		o(&options)
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	}
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	addr := DefaultName
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	namespace := DefaultNamespace
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	path := DefaultPath
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	if options.Context != nil {
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		a, ok := options.Context.Value(serviceNameKey{}).(string)
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		if ok {
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			addr = a
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		}
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		k, ok := options.Context.Value(namespaceKey{}).(string)
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		if ok {
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			namespace = k
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		}
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		p, ok := options.Context.Value(pathKey{}).(string)
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		if ok {
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			path = p
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		}
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	}
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	if options.Client == nil {
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		options.Client = client.DefaultClient
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	}
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	s := &service{
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		serviceName: addr,
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		opts:        options,
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		namespace:   namespace,
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		path:        path,
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	}
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	return s
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}
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