69 lines
3.0 KiB
Go
69 lines
3.0 KiB
Go
package Templates
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import (
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"archive/zip"
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"bytes"
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"fmt"
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"github.com/SommerEngineering/Ocean/CustomerDB"
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"github.com/SommerEngineering/Ocean/Log"
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LM "github.com/SommerEngineering/Ocean/Log/Meta"
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"github.com/SommerEngineering/Ocean/Tools"
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"html/template"
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"io/ioutil"
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)
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func init() {
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Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `Starting the template engine.`)
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defer Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `Starting the template engine done.`)
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dbSession, gridFS := CustomerDB.GridFS()
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defer dbSession.Close()
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if gridFile, errGridFile := gridFS.Open(`templates.zip`); errGridFile != nil {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityCritical, LM.ImpactCritical, LM.MessageNameDATABASE, `Was not able to open the templates out of the GridFS!`, errGridFile.Error())
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return
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} else {
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defer gridFile.Close()
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Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameCONFIGURATION, `Read the templates.zip file from the grid file system.`, `Upload time UTC: `+Tools.FormatTime(gridFile.UploadDate().UTC()))
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if data, ioError := ioutil.ReadAll(gridFile); ioError != nil {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityCritical, LM.ImpactCritical, LM.MessageNameDATABASE, `Was not able to read the templates.`, ioError.Error())
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return
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} else {
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zipData = data
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}
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}
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// Read the content from the ZIP file:
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reader, readerError := zip.NewReader(bytes.NewReader(zipData), int64(len(zipData)))
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if readerError != nil {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityCritical, LM.ImpactCritical, LM.MessageNameREAD, `Was not able to read the ZIP file.`, readerError.Error())
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return
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}
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templates = template.New(`root`)
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for _, file := range reader.File {
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fileReader, openError := file.Open()
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if openError == nil {
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contentData, readError := ioutil.ReadAll(fileReader)
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fileReader.Close()
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if readError != nil {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityCritical, LM.ImpactCritical, LM.MessageNameREAD, `Was not able to read the content of the desired template.`, readError.Error(), file.FileInfo().Name())
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continue
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}
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templateData := string(contentData)
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if _, err := templates.Parse(templateData); err != nil {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityMiddle, LM.ImpactMiddle, LM.MessageNamePARSE, fmt.Sprintf(`The template '%s' cannot be parsed.`, file.FileInfo().Name()), err.Error())
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} else {
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Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameEXECUTE, fmt.Sprintf(`The template '%s' was parsed.`, file.FileInfo().Name()))
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}
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} else {
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Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityCritical, LM.ImpactCritical, LM.MessageNameDATABASE, `Was not able to open a template.`, file.FileInfo().Name())
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}
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}
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isInit = true
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}
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