Merge pull request #5 from guojun1992/iss4

fix iss#4 display data by order

chart_parser.go

@@ -3,15 +3,18 @@ package main
 import (
 	"errors"
 	"github.com/zieckey/goini"
+	"io/ioutil"
+	"log"
 	"os"
 	"path/filepath"
-	"log"
+	"strings"
 )
 
 const DataPrefix = "Data|"
+const emptyRunes = " \r\t\v"
 
 type ChartIf interface {
-	Parse(ini *goini.INI) (map[string]string, error)
+	Parse(ini *goini.INI, file string) (map[string]string, error)
 	Template() string
 }
 
@@ -30,7 +33,7 @@ func Parse(file string) (tt TemplateArgs, err error) {
 
 	t, _ := ini.Get("ChartType")
 	if f, ok := ChartHandlers[t]; ok {
-		tt.args, err = f.Parse(ini)
+		tt.args, err = f.Parse(ini, file)
 		tt.tmpl = f.Template()
 	}
 
@@ -64,3 +67,38 @@ func LookupChartFiles(dir string) ([]string, error) {
 
 	return files, err
 }
+
+/**
+ * 读取配置文件获取有序map
+ *
+ * @return order map
+ * @param {[type]} ini string [description]
+ */
+func LoadConfGetOrderMap(configFile string) ([]string, map[string]string, error) {
+	stream, err := ioutil.ReadFile(configFile)
+	if err != nil {
+		return nil, nil, errors.New("cannot load config file")
+	}
+	content := string(stream)
+
+	confMap := make(map[string]string)
+	mapkeys := make([]string, 0)
+
+	lines := strings.Split(content, "\n")
+	for _, line := range lines {
+		line = strings.Trim(line, emptyRunes)
+		//过滤注释 //过滤非DataPrefix
+		if line == "" || line[0] == '#' || !strings.HasPrefix(line, DataPrefix) {
+			continue
+		}
+		//过滤
+		parts := strings.SplitN(line, "=", 2)
+		if len(parts) == 2 {
+			key := strings.Trim(parts[0], emptyRunes)
+			value := strings.Trim(parts[1], emptyRunes)
+			mapkeys = append(mapkeys, key)
+			confMap[key] = value
+		}
+	}
+	return mapkeys, confMap, nil
+}

chart_parser_pie.go

@@ -7,33 +7,36 @@ import (
 
 type PieChart int
 
-func (c *PieChart) Parse(ini *goini.INI) (map[string]string, error) {
+func (c *PieChart) Parse(ini *goini.INI, file string) (map[string]string, error) {
 	args := make(map[string]string)
 	args["ChartType"], _ = ini.Get("ChartType")
 	args["Title"], _ = ini.Get("Title")
 	args["SubTitle"], _ = ini.Get("SubTitle")
 	args["SeriesName"], _ = ini.Get("SeriesName")
 
-/* Generate DataArray:
-    [
-        ['Firefox',   45.0],
-        ['IE',       26.8],
-        ['Chrome',  12.8],
-        ['Safari',    8.5],
-        ['Opera',     6.2],
-        ['Others',   0.7]
-    ]
-*/	
+	/* Generate DataArray:
+	   [
+	       ['Firefox',   45.0],
+	       ['IE',       26.8],
+	       ['Chrome',  12.8],
+	       ['Safari',    8.5],
+	       ['Opera',     6.2],
+	       ['Others',   0.7]
+	   ]
+	*/
 
 	DataArray := "[\n"
-	kv, _ := ini.GetKvmap(goini.DefaultSection)
-	for k, v := range kv {
+	mapkeys, kvmap, err := LoadConfGetOrderMap(file)
+	if err != nil {
+		return nil, err
+	}
+	for _, k := range mapkeys {
 		if !strings.HasPrefix(k, DataPrefix) {
 			continue
 		}
 
 		key := k[len(DataPrefix):]
-		DataArray = DataArray + "['" + key + "' , " + v + "],\n"
+		DataArray = DataArray + "['" + key + "' , " + kvmap[k] + "],\n"
 	}
 
 	DataArray = DataArray + "]"

chart_parser_spline.go

@@ -3,13 +3,14 @@ package main
 import (
 	"github.com/bitly/go-simplejson"
 	"github.com/zieckey/goini"
+	"log"
 	"strconv"
 	"strings"
 )
 
 type SplineChart int
 
-func (c *SplineChart) Parse(ini *goini.INI) (map[string]string, error) {
+func (c *SplineChart) Parse(ini *goini.INI, file string) (map[string]string, error) {
 	args := make(map[string]string)
 	args["ChartType"], _ = ini.Get("ChartType")
 	args["Title"], _ = ini.Get("Title")
@@ -21,13 +22,17 @@ func (c *SplineChart) Parse(ini *goini.INI) (map[string]string, error) {
 
 	datas := make([]interface{}, 0)
 
-	kv, _ := ini.GetKvmap(goini.DefaultSection)
-	for k, v := range kv {
-		if !strings.HasPrefix(k, DataPrefix) {
+	mapkeys, kvmap, err := LoadConfGetOrderMap(file)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, key := range mapkeys {
+		if !strings.HasPrefix(key, DataPrefix) {
 			continue
 		}
 
-		dd := strings.Split(v, ",")
+		dd := strings.Split(kvmap[key], ",")
 		jd := make([]interface{}, 0)
 		for _, d := range dd {
 			d = strings.TrimSpace(d)
@@ -37,7 +42,7 @@ func (c *SplineChart) Parse(ini *goini.INI) (map[string]string, error) {
 			}
 		}
 		json := simplejson.New()
-		json.Set("name", k[len(DataPrefix):])
+		json.Set("name", key[len(DataPrefix):])
 		json.Set("data", jd)
 		datas = append(datas, json)
 	}
@@ -46,7 +51,7 @@ func (c *SplineChart) Parse(ini *goini.INI) (map[string]string, error) {
 	json.Set("DataArray", datas)
 	b, _ := json.Get("DataArray").Encode()
 	args["DataArray"] = string(b)
-
+	log.Println(args)
 	return args, nil
 }