74 lines
1.5 KiB
Go
74 lines
1.5 KiB
Go
package chart
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import (
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"fmt"
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jsoniter "github.com/json-iterator/go"
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"github.com/yaoapp/gou"
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"github.com/yaoapp/kun/exception"
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"github.com/yaoapp/xiang/config"
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"github.com/yaoapp/xiang/share"
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"github.com/yaoapp/xiang/xlog"
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)
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// Charts 已载入图表
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var Charts = map[string]*Chart{}
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// Load 加载数据表格
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func Load(cfg config.Config) {
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LoadFrom(cfg.RootChart, "")
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}
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// LoadFrom 从特定目录加载
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func LoadFrom(dir string, prefix string) {
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if share.DirNotExists(dir) {
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return
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}
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share.Walk(dir, ".json", func(root, filename string) {
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name := share.SpecName(root, filename)
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content := share.ReadFile(filename)
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_, err := LoadChart(content, name)
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if err != nil {
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exception.New("%s 图表格式错误", 400, name).Ctx(filename).Throw()
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}
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})
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}
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// LoadChart 载入数据表格
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func LoadChart(source []byte, name string) (*Chart, error) {
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chart := &Chart{
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Flow: gou.Flow{
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Name: name,
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},
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}
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err := jsoniter.Unmarshal(source, chart)
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if err != nil {
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xlog.Println(name)
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xlog.Println(err.Error())
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xlog.Println(string(source))
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return nil, err
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}
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chart.Prepare()
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chart.SetupAPIs()
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Charts[name] = chart
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return chart, nil
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}
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// Select 读取已加载图表
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func Select(name string) *Chart {
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chart, has := Charts[name]
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if !has {
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exception.New(
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fmt.Sprintf("Chart:%s; 尚未加载", name),
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400,
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).Throw()
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}
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return chart
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}
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// GetData 运行 flow 返回数值
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func (chart Chart) GetData(params map[string]interface{}) interface{} {
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return chart.Flow.Exec(params)
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}
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