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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,209 @@ | ||
| package preparegspatialjp | ||
|
|
||
| import ( | ||
| "archive/zip" | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
|
|
||
| cms "github.com/reearth/reearth-cms-api/go" | ||
| "github.com/reearth/reearthx/log" | ||
| ) | ||
|
|
||
| var citygmlFiles = []string{ | ||
| "codelists", | ||
| "schemas", | ||
| "metadata", | ||
| "specification", | ||
| "misc", | ||
| } | ||
|
|
||
| func PrepareCityGML2(ctx context.Context, cms *cms.CMS, tmpDir string, cityItem *CityItem, allFeatureItems map[string]FeatureItem, uc int) (string, string, error) { | ||
| // create a zip file | ||
| rootName := fmt.Sprintf("%s_%s_city_%d_citygml_%d_op", cityItem.CityCode, cityItem.CityNameEn, cityItem.YearInt(), uc) | ||
| downloadPath := filepath.Join(tmpDir, rootName) | ||
| _ = os.MkdirAll(downloadPath, os.ModePerm) | ||
|
|
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| zipFileName := rootName + ".zip" | ||
| f, err := os.Create(zipFileName) | ||
| if err != nil { | ||
| return "", "", fmt.Errorf("failed to create file: %w", err) | ||
| } | ||
|
|
||
| defer f.Close() | ||
| zw := zip.NewWriter(f) | ||
| cz := NewCityGMLZipWriter(zw, rootName) | ||
| defer cz.Close() | ||
|
|
||
| // copy files | ||
| for _, ty := range citygmlFiles { | ||
| url := getCityGMLURL(cityItem, ty) | ||
| if url == "" { | ||
| continue | ||
| } | ||
|
|
||
| log.Infofc(ctx, "preparing citygml (%s): %s", ty, url) | ||
|
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| prefix := "" | ||
| if ty == "misc" { | ||
| ty = "" | ||
| prefix = "misc/" | ||
| } | ||
|
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| err := cz.DownloadAndWrite(ctx, url, downloadPath, ty, prefix) | ||
| if err != nil { | ||
| return "", "", fmt.Errorf("failed to download and write %s: %w", ty, err) | ||
| } | ||
| } | ||
|
|
||
| // copy features | ||
| for ty, a := range allFeatureItems { | ||
| url := a.CityGML | ||
| if a.CityGML == "" { | ||
| continue | ||
| } | ||
|
|
||
| log.Infofc(ctx, "preparing citygml (%s): %s", ty, url) | ||
|
|
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| if err := cz.DownloadAndWrite(ctx, url, downloadPath, ty, "udx/"); err != nil { | ||
| return "", "", fmt.Errorf("failed to download and write citygml for %s: %w", ty, err) | ||
| } | ||
| } | ||
|
|
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| zipFilePath := filepath.Join(tmpDir, zipFileName) | ||
| return zipFileName, zipFilePath, nil | ||
| } | ||
|
|
||
| func getCityGMLURL(item *CityItem, ty string) string { | ||
| switch ty { | ||
| case "codelists": | ||
| return item.CodeLists | ||
| case "schemas": | ||
| return item.Schemas | ||
| case "metadata": | ||
| return item.Metadata | ||
| case "specification": | ||
| return item.Specification | ||
| case "misc": | ||
| return item.Misc | ||
| } | ||
| return "" | ||
| } | ||
|
|
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| type CityGMLZipWriter struct { | ||
| w *Zip2zip | ||
| name string | ||
| } | ||
|
|
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| func NewCityGMLZipWriter(w *zip.Writer, name string) *CityGMLZipWriter { | ||
| return &CityGMLZipWriter{ | ||
| w: NewZip2zip(w), | ||
| name: name, | ||
| } | ||
| } | ||
|
|
||
| func (z *CityGMLZipWriter) Close() error { | ||
| return z.w.Close() | ||
| } | ||
|
|
||
| func (z *CityGMLZipWriter) DownloadAndWrite(ctx context.Context, url, temdir, ty, prefix string) error { | ||
| if url == "" { | ||
| return nil | ||
| } | ||
|
|
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| srcPath, err := downloadFileTo(ctx, url, temdir) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to download file: %w", err) | ||
| } | ||
|
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| f, err := os.Open(srcPath) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to open file: %w", err) | ||
| } | ||
|
|
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| defer func() { | ||
| _ = f.Close() | ||
| _ = os.Remove(srcPath) | ||
| }() | ||
|
|
||
| fi, err := f.Stat() | ||
| if err != nil { | ||
| return fmt.Errorf("failed to get file info: %w", err) | ||
| } | ||
|
|
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| zr, err := zip.NewReader(f, fi.Size()) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create zip reader: %w", err) | ||
| } | ||
|
|
||
| if err := z.Write(ctx, zr, ty, prefix); err != nil { | ||
| return fmt.Errorf("failed to write zip: %w", err) | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
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| func (z *CityGMLZipWriter) Write(ctx context.Context, src *zip.Reader, ty, prefix string) error { | ||
| fn := cityGMLZipPath(ty, prefix) | ||
| return z.w.Run(src, func(f *zip.File) (string, error) { | ||
| p, err := fn(f) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| if p == "" { | ||
| log.Debugfc(ctx, "zipping %s: %s -> [SKIP]", z.name, f.Name) | ||
| return "", nil | ||
| } | ||
|
|
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| log.Debugfc(ctx, "zipping %s: %s -> %s", z.name, f.Name, p) | ||
| return p, nil | ||
| }) | ||
| } | ||
|
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| func cityGMLZipPath(ty, prefix string) func(*zip.File) (string, error) { | ||
| return func(f *zip.File) (string, error) { | ||
| rawPath := f.Name | ||
| p := f.Name | ||
|
|
||
| if prefix != "" { | ||
| if strings.HasPrefix(p, prefix) { | ||
| p = strings.TrimPrefix(p, prefix) | ||
| } else if strings.HasSuffix(prefix, "/") && rawPath == prefix[:len(prefix)-1] { | ||
| return "", nil | ||
| } | ||
| } | ||
|
|
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| if ty != "" { | ||
| paths := strings.Split(p, "/") | ||
|
|
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| if len(paths) > 0 { | ||
| if strings.HasSuffix(paths[0], "_"+ty) { | ||
| paths[0] = ty | ||
| } else if paths[0] != ty { | ||
| return "", fmt.Errorf("unexpected path: %s", p) | ||
| } | ||
| if len(paths) > 1 && paths[1] == ty { | ||
| // remove paths[1] | ||
| paths = append(paths[:1], paths[2:]...) | ||
| } | ||
| } else { | ||
| return "", fmt.Errorf("unexpected path: %s", p) | ||
| } | ||
|
|
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| res := strings.Join(paths, "/") | ||
| if res == rawPath { | ||
| return "", nil | ||
| } | ||
|
|
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| return res, nil | ||
| } | ||
|
|
||
| if p == rawPath { | ||
| return "", nil | ||
| } | ||
| return p, nil | ||
| } | ||
| } |
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