Release catalyst

database/busdb/busdb.go

@@ -0,0 +1,182 @@
+package busdb
+
+import (
+	"context"
+
+	"github.com/arangodb/go-driver"
+
+	"github.com/SecurityBrewery/catalyst/bus"
+	"github.com/SecurityBrewery/catalyst/generated/models"
+)
+
+type Hook interface {
+	PublishAction(action string, context, msg map[string]interface{}) error
+	PublishUpdate(col, id string) error
+}
+
+// BusDatabase
+//  1. Save entry to log
+//  2. Send update ticket to bus
+//  3. Add document to index
+type BusDatabase struct {
+	internal      driver.Database
+	logCollection driver.Collection
+	bus           *bus.Bus
+	// index         *index.Index
+}
+
+func NewDatabase(ctx context.Context, internal driver.Database, b *bus.Bus) (*BusDatabase, error) {
+	logCollection, err := internal.Collection(ctx, LogCollectionName)
+	if err != nil {
+		return nil, err
+	}
+
+	return &BusDatabase{
+		internal:      internal,
+		logCollection: logCollection,
+		bus:           b,
+	}, nil
+}
+
+type OperationType int
+
+const (
+	Create OperationType = iota
+	Read                 = iota
+	Update               = iota
+)
+
+type Operation struct {
+	OperationType OperationType
+	Ids           []driver.DocumentID
+	Msg           string
+}
+
+var CreateOperation = &Operation{OperationType: Create}
+var ReadOperation = &Operation{OperationType: Read}
+
+func (db BusDatabase) Query(ctx context.Context, query string, vars map[string]interface{}, operation *Operation) (driver.Cursor, *models.LogEntry, error) {
+	cur, err := db.internal.Query(ctx, query, vars)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var logs *models.LogEntry
+
+	switch {
+	case operation.OperationType == Update:
+		if err := db.LogAndNotify(ctx, operation.Ids, operation.Msg); err != nil {
+			return nil, nil, err
+		}
+	}
+
+	return cur, logs, err
+}
+
+func (db BusDatabase) LogAndNotify(ctx context.Context, ids []driver.DocumentID, msg string) error {
+	var logEntries []*models.LogEntry
+	for _, i := range ids {
+		logEntries = append(logEntries, &models.LogEntry{Reference: i.String(), Message: msg})
+	}
+
+	if err := db.LogBatchCreate(ctx, logEntries); err != nil {
+		return err
+	}
+
+	return db.bus.PublishUpdate(ids)
+}
+
+func (db BusDatabase) Remove(ctx context.Context) error {
+	return db.internal.Remove(ctx)
+}
+
+func (db BusDatabase) Collection(ctx context.Context, name string) (driver.Collection, error) {
+	return db.internal.Collection(ctx, name)
+}
+
+type Collection struct {
+	internal driver.Collection
+	db       *BusDatabase
+}
+
+func NewCollection(internal driver.Collection, db *BusDatabase) *Collection {
+	return &Collection{internal: internal, db: db}
+}
+
+func (c Collection) CreateDocument(ctx, newctx context.Context, key string, document interface{}) (driver.DocumentMeta, error) {
+	meta, err := c.internal.CreateDocument(newctx, &Keyed{Key: key, Doc: document})
+	if err != nil {
+		return meta, err
+	}
+
+	err = c.db.LogAndNotify(ctx, []driver.DocumentID{meta.ID}, "Document created")
+	if err != nil {
+		return meta, err
+	}
+	return meta, nil
+}
+
+func (c Collection) CreateEdge(ctx, newctx context.Context, edge *driver.EdgeDocument) (driver.DocumentMeta, error) {
+	meta, err := c.internal.CreateDocument(newctx, edge)
+	if err != nil {
+		return meta, err
+	}
+
+	err = c.db.LogAndNotify(ctx, []driver.DocumentID{meta.ID}, "Document created")
+	if err != nil {
+		return meta, err
+	}
+	return meta, nil
+}
+
+func (c Collection) CreateEdges(ctx context.Context, edges []*driver.EdgeDocument) (driver.DocumentMetaSlice, error) {
+	metas, errs, err := c.internal.CreateDocuments(ctx, edges)
+	if err != nil {
+		return nil, err
+	}
+	if errs.FirstNonNil() != nil {
+		return nil, errs.FirstNonNil()
+	}
+
+	var ids []driver.DocumentID
+	for _, meta := range metas {
+		ids = append(ids, meta.ID)
+	}
+
+	err = c.db.LogAndNotify(ctx, ids, "Document created")
+	if err != nil {
+		return metas, err
+	}
+
+	return metas, nil
+}
+
+func (c Collection) DocumentExists(ctx context.Context, id string) (bool, error) {
+	return c.internal.DocumentExists(ctx, id)
+}
+
+func (c Collection) ReadDocument(ctx context.Context, key string, result interface{}) (driver.DocumentMeta, error) {
+	return c.internal.ReadDocument(ctx, key, result)
+}
+
+func (c Collection) UpdateDocument(ctx context.Context, key string, update interface{}) (driver.DocumentMeta, error) {
+	meta, err := c.internal.UpdateDocument(ctx, key, update)
+	if err != nil {
+		return meta, err
+	}
+
+	return meta, c.db.bus.PublishUpdate([]driver.DocumentID{meta.ID})
+}
+
+func (c Collection) ReplaceDocument(ctx context.Context, key string, document interface{}) (driver.DocumentMeta, error) {
+	meta, err := c.internal.ReplaceDocument(ctx, key, document)
+	if err != nil {
+		return meta, err
+	}
+
+	return meta, c.db.bus.PublishUpdate([]driver.DocumentID{meta.ID})
+}
+
+func (c Collection) RemoveDocument(ctx context.Context, formatInt string) (driver.DocumentMeta, error) {
+	return c.internal.RemoveDocument(ctx, formatInt)
+}