Introduce registry

We introduce a registry that contains maps to builder functions. These
builder functions return the interface implementation of the modules
specified in the configuration.

We also make the input module type use the registry. All other module
types still have to be converted.

1 files changed, 7 insertions, 0 deletions

diff --git a/conf/parser.go b/conf/parser.go
index 6aca3aa..bdec888 100644
--- a/conf/parser.go
+++ b/conf/parser.go
@@ -19,6 +19,8 @@ import (
 	"fmt"
 	"io"
 	"os"
+
+	"github.com/Shugyousha/stasher/registry"
 )
 
 // Having a Config to Manager function could be nice?  Or we could just
@@ -55,6 +57,11 @@ func NewConfig(r io.Reader) *Config {
 func (p *parser) startparsing() {
 	inputmdesc := p.module("input")
 	fmt.Fprintf(os.Stderr, "input moduledesc: %#v\n", inputmdesc)
+	inputfunc, ok := registry.Inputregistry[inputmdesc.name]
+	if !ok {
+		fmt.Fprintf(os.Stderr, "input module is not known: %q\n", inputmdesc.name)
+	}
+	inputfunc(nil)
 
 	filtermdesc := p.module("filter")
 	fmt.Fprintf(os.Stderr, "filter moduledesc: %#v\n", filtermdesc)