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WIP: Add activity to merge AIS metadata files
Fixes #77.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| package ais | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
|
|
||
| "github.com/antchfx/xmlquery" | ||
|
|
||
| "github.com/artefactual-sdps/preprocessing-sfa/internal/fsutil" | ||
| ) | ||
|
|
||
| const CombineMDActivityName = "combine-metadata-files" | ||
|
|
||
| type ( | ||
| CombineMDActivity struct{} | ||
| CombineMDActivityParams struct { | ||
| AreldaRelPath string | ||
| METSRelPath string | ||
| WorkingDir string | ||
| } | ||
| CombineMDActivityResult struct { | ||
| Path string | ||
| } | ||
| ) | ||
|
|
||
| func NewCombineMDActivity() *CombineMDActivity { | ||
| return &CombineMDActivity{} | ||
| } | ||
|
|
||
| func (a *CombineMDActivity) Execute(ctx context.Context, params CombineMDActivityParams) (*CombineMDActivityResult, error) { | ||
| areldaPath := filepath.Join(params.WorkingDir, params.AreldaRelPath) | ||
| if !fsutil.FileExists(areldaPath) { | ||
| return nil, fmt.Errorf("missing Arelda file: %s", areldaPath) | ||
| } | ||
|
|
||
| metsPath := filepath.Join(params.WorkingDir, params.METSRelPath) | ||
| if !fsutil.FileExists(metsPath) { | ||
| return nil, fmt.Errorf("missing METS file: %s", metsPath) | ||
| } | ||
|
|
||
| aisName, err := aisFilename(areldaPath) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("name AIS file: %v", err) | ||
| } | ||
|
|
||
| dest := filepath.Join(params.WorkingDir, aisName) | ||
|
|
||
| f, err := os.Create(dest) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("create AIS file: %v", err) | ||
| } | ||
| f.Close() | ||
|
|
||
| if err = fappend(dest, filepath.Join(params.WorkingDir, params.AreldaRelPath)); err != nil { | ||
| return nil, fmt.Errorf("append Arelda metadata: %v", err) | ||
| } | ||
|
|
||
| if err = fappend(dest, filepath.Join(params.WorkingDir, params.METSRelPath)); err != nil { | ||
| return nil, fmt.Errorf("append METS metadata: %v", err) | ||
| } | ||
|
|
||
| return &CombineMDActivityResult{Path: dest}, nil | ||
| } | ||
|
|
||
| func aisFilename(mdpath string) (string, error) { | ||
| id, err := parseAccessionID(mdpath) | ||
| if err != nil { | ||
| return "", fmt.Errorf("get accession number: %v", err) | ||
| } | ||
|
|
||
| id = strings.ReplaceAll(id, "/", "_") | ||
|
|
||
| return fmt.Sprintf("AIS_%s", id), nil | ||
| } | ||
|
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||
| func parseAccessionID(path string) (string, error) { | ||
| f, err := os.Open(path) // #nosec G304 -- trusted path | ||
| if err != nil { | ||
| return "", fmt.Errorf("open metadata file: %v", err) | ||
| } | ||
| defer f.Close() | ||
|
|
||
| sp, err := xmlquery.CreateStreamParser(f, "//paket/ablieferung/ablieferungsnummer") | ||
| if err != nil { | ||
| return "", fmt.Errorf("create XML parser: %v", err) | ||
| } | ||
|
|
||
| n, err := sp.Read() | ||
| if err == io.EOF { | ||
| return "", fmt.Errorf("can't find ablieferungsnummer in %q", filepath.Base(path)) | ||
| } | ||
| if err != nil { | ||
| return "", fmt.Errorf("read XML stream: %v", err) | ||
| } | ||
| return n.InnerText(), nil | ||
| } | ||
|
|
||
| func fappend(dest, src string) error { | ||
| r, err := os.Open(src) | ||
| if err != nil { | ||
| return fmt.Errorf("open src: %v", err) | ||
| } | ||
| defer r.Close() | ||
|
|
||
| w, err := os.OpenFile(dest, os.O_WRONLY|os.O_APPEND, os.FileMode(0o666)) | ||
| if err != nil { | ||
| return fmt.Errorf("open dest: %v", err) | ||
| } | ||
| defer r.Close() | ||
|
|
||
| if _, err = io.Copy(w, r); err != nil { | ||
| return fmt.Errorf("copy: %v", err) | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| package ais_test | ||
|
|
||
| import ( | ||
| "strings" | ||
| "testing" | ||
|
|
||
| temporalsdk_activity "go.temporal.io/sdk/activity" | ||
| temporalsdk_testsuite "go.temporal.io/sdk/testsuite" | ||
| "gotest.tools/v3/assert" | ||
| "gotest.tools/v3/fs" | ||
|
|
||
| "github.com/artefactual-sdps/preprocessing-sfa/internal/ais" | ||
| ) | ||
|
|
||
| const ( | ||
| mets = `<?xml version='1.0' encoding='UTF-8'?> | ||
| <mets:mets xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mets="http://www.loc.gov/METS/" xsi:schemaLocation="http://www.loc.gov/METS/ http://www.loc.gov/standards/mets/version1121/mets.xsd"> | ||
| </mets:mets> | ||
| ` | ||
|
|
||
| arelda = `<?xml version="1.0" encoding="UTF-8"?> | ||
| <paket xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
| xmlns:xip="http://www.tessella.com/XIP/v4" | ||
| xmlns="http://bar.admin.ch/arelda/v4" | ||
| xmlns:xs="http://www.w3.org/2001/XMLSchema" | ||
| xmlns:submissionTests="http://bar.admin.ch/submissionTestResult" | ||
| xsi:type="paketAIP" | ||
| schemaVersion="5.0"> | ||
| <ablieferung xsi:type="ablieferungFilesAIP"> | ||
| <ablieferungstyp>FILES</ablieferungstyp> | ||
| <ablieferndeStelle>Bundesverwaltung (Bern)</ablieferndeStelle> | ||
| <ablieferungsnummer>1000/893_3251903</ablieferungsnummer> | ||
| </ablieferung> | ||
| </packet> | ||
| ` | ||
| ) | ||
|
|
||
| func testDir(t *testing.T) string { | ||
| td := fs.NewDir(t, "ppsfa", | ||
| fs.WithFile("arelda.xml", arelda), | ||
| fs.WithFile("mets.xml", mets), | ||
| ) | ||
|
|
||
| return td.Path() | ||
| } | ||
|
|
||
| func TestExecute(t *testing.T) { | ||
| t.Parallel() | ||
|
|
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| tests := []struct { | ||
| name string | ||
| params ais.CombineMDActivityParams | ||
| want ais.CombineMDActivityResult | ||
| wantErr string | ||
| }{ | ||
| { | ||
| name: "Returns the combined metadata", | ||
| params: ais.CombineMDActivityParams{ | ||
| AreldaRelPath: "arelda.xml", | ||
| METSRelPath: "mets.xml", | ||
| WorkingDir: testDir(t), | ||
| }, | ||
| want: ais.CombineMDActivityResult{Path: "{{wd}}/AIS_1000_893_3251903"}, | ||
| }, | ||
| { | ||
| name: "Errors if the Arelda file doesn't exist", | ||
| params: ais.CombineMDActivityParams{ | ||
| AreldaRelPath: "missing.xml", | ||
| WorkingDir: testDir(t), | ||
| }, | ||
| wantErr: "activity error (type: combine-metadata-files, scheduledEventID: 0, startedEventID: 0, identity: ): missing Arelda file: {{wd}}/missing.xml", | ||
| }, | ||
| { | ||
| name: "Errors if the METS file doesn't exist", | ||
| params: ais.CombineMDActivityParams{ | ||
| AreldaRelPath: "arelda.xml", | ||
| METSRelPath: "missing.xml", | ||
| WorkingDir: testDir(t), | ||
| }, | ||
| wantErr: "activity error (type: combine-metadata-files, scheduledEventID: 0, startedEventID: 0, identity: ): missing METS file: {{wd}}/missing.xml", | ||
| }, | ||
| { | ||
| name: "Errors when the Arelda file is invalid", | ||
| params: ais.CombineMDActivityParams{ | ||
| AreldaRelPath: "mets.xml", | ||
| WorkingDir: testDir(t), | ||
| }, | ||
| wantErr: "activity error (type: combine-metadata-files, scheduledEventID: 0, startedEventID: 0, identity: ): name AIS file: get accession number: can't find ablieferungsnummer in \"mets.xml\"", | ||
| }, | ||
| } | ||
| for _, tt := range tests { | ||
| t.Run(tt.name, func(t *testing.T) { | ||
| t.Parallel() | ||
|
|
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| ts := &temporalsdk_testsuite.WorkflowTestSuite{} | ||
| env := ts.NewTestActivityEnvironment() | ||
| env.RegisterActivityWithOptions( | ||
| ais.NewCombineMDActivity().Execute, | ||
| temporalsdk_activity.RegisterOptions{Name: ais.CombineMDActivityName}, | ||
| ) | ||
|
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| tt.want.Path = strings.ReplaceAll(tt.want.Path, "{{wd}}", tt.params.WorkingDir) | ||
| tt.wantErr = strings.ReplaceAll(tt.wantErr, "{{wd}}", tt.params.WorkingDir) | ||
|
|
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| future, err := env.ExecuteActivity(ais.CombineMDActivityName, tt.params) | ||
| if tt.wantErr != "" { | ||
| if err == nil { | ||
| t.Errorf("error is nil, expecting: %q", tt.wantErr) | ||
| } else { | ||
| assert.ErrorContains(t, err, tt.wantErr) | ||
| } | ||
|
|
||
| return | ||
| } | ||
| assert.NilError(t, err) | ||
|
|
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| var got ais.CombineMDActivityResult | ||
| future.Get(&got) | ||
| assert.DeepEqual(t, got, tt.want) | ||
| }) | ||
| } | ||
| } |
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