fix(pkg/logfile): define own un/marshal functions for xml

pkg/logfile/errors.go

@@ -2,11 +2,15 @@ package logfile
 
 import "errors"
 
-var errorLogfileNotFound = errors.New("Can not find logfile")
 var errorLogfileCreate = errors.New("Can not create logfile")
 var errorLogfileDecode = errors.New("Can not decode from reader")
 var errorLogfileEncode = errors.New("Can not encode from writer")
+var errorLogfileMarshal = errors.New("Can not marshal values")
+var errorLogfileNotFound = errors.New("Can not find logfile")
 var errorLogfileOpen = errors.New("Can not open logfile")
+var errorLogfileRead = errors.New("Can not read from given reader")
+var errorLogfileUnmarshal = errors.New("Can not unmarshal values")
+var errorLogfileWrite = errors.New("Can not write with given writer")
 
 var errorParseFloat = errors.New("Can not parse float")
 var errorParseTime = errors.New("Can not parse time")

pkg/logfile/types.go

@@ -0,0 +1,17 @@
+package logfile
+
+import (
+	"encoding/xml"
+
+	"github.com/go-flucky/flucky/pkg/types"
+)
+
+type Temperatures struct {
+	XMLName      xml.Name       `xml:"temperatures"`
+	Temperatures []*Temperature `xml:"temperature"`
+}
+
+type Temperature struct {
+	XMLName xml.Name `xml:"temperature"`
+	*types.Temperature
+}

pkg/logfile/xml.go

@@ -3,6 +3,8 @@ package logfile
 import (
 	"encoding/xml"
 	"fmt"
+	"io/ioutil"
+	"log"
 	"os"
 
 	"github.com/go-flucky/flucky/pkg/types"
@@ -43,18 +45,30 @@ func (xl *xmlLogfile) ReadTemperatures() ([]*types.Temperature, error) {
 		return nil, fmt.Errorf("%v: %v", errorLogfileNotFound, xl.logfile)
 	}
 
-	temperatures := make([]*types.Temperature, 0)
-
 	f, err := os.Open(xl.logfile)
 	if err != nil {
 		return nil, fmt.Errorf("%v: %v", errorLogfileOpen, xl.logfile)
 	}
 	defer f.Close()
 
-	xmlDecoder := xml.NewDecoder(f)
-	err = xmlDecoder.Decode(&temperatures)
+	bytes, err := ioutil.ReadAll(f)
 	if err != nil {
-		return nil, fmt.Errorf("%v: %v", errorLogfileDecode, err)
+		return nil, fmt.Errorf("%v: %v", errorLogfileRead, err)
+	}
+
+	tmpTemperatures := new(Temperatures)
+
+	err = xml.Unmarshal(bytes, tmpTemperatures)
+	if err != nil {
+		return nil, fmt.Errorf("%v: %v", errorLogfileUnmarshal, err)
+	}
+
+	log.Println(len(tmpTemperatures.Temperatures))
+
+	temperatures := make([]*types.Temperature, 0)
+
+	for _, tmpTemperature := range tmpTemperatures.Temperatures {
+		temperatures = append(temperatures, tmpTemperature.Temperature)
 	}
 
 	return temperatures, nil
@@ -86,11 +100,25 @@ func (xl *xmlLogfile) WriteTemperatures(temperatures []*types.Temperature) error
 
 	writeCreationDate(temperatures)
 
-	xmlEncoder := xml.NewEncoder(f)
-	xmlEncoder.Indent("", "  ")
-	err = xmlEncoder.Encode(temperatures)
-	if err != nil {
-		return fmt.Errorf("%v: %v", errorLogfileEncode, err)
+	tmpTemperatures := new(Temperatures)
+
+	for _, temperature := range temperatures {
+		tmpTemperature := &Temperature{
+			Temperature: temperature,
+		}
+
+		tmpTemperatures.Temperatures = append(tmpTemperatures.Temperatures, tmpTemperature)
 	}
+
+	bytes, err := xml.MarshalIndent(tmpTemperatures, "", "  ")
+	if err != nil {
+		return fmt.Errorf("%v: %v", errorLogfileMarshal, err)
+	}
+
+	_, err = f.Write(bytes)
+	if err != nil {
+		return fmt.Errorf("%v: %v", errorLogfileWrite, err)
+	}
+
 	return nil
 }

pkg/types/temperature.go

@@ -1,6 +1,8 @@
 package types
 
-import "time"
+import (
+	"time"
+)
 
 // Temperature ...
 type Temperature struct {