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//
// DISCLAIMER
//
// Copyright 2018 ArangoDB GmbH, Cologne, Germany
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Copyright holder is ArangoDB GmbH, Cologne, Germany
//
// Author Ewout Prangsma
//
package driver
import (
"context"
"fmt"
"net/http"
"path"
)
// newView creates a new View implementation.
func newView(name string, viewType ViewType, db *database) (View, error) {
if name == "" {
return nil, WithStack(InvalidArgumentError{Message: "name is empty"})
}
if viewType == "" {
return nil, WithStack(InvalidArgumentError{Message: "viewType is empty"})
}
if db == nil {
return nil, WithStack(InvalidArgumentError{Message: "db is nil"})
}
return &view{
name: name,
viewType: viewType,
db: db,
conn: db.conn,
}, nil
}
type view struct {
name string
viewType ViewType
db *database
conn Connection
}
// relPath creates the relative path to this view (`_db/<db-name>/_api/view/<view-name>`)
func (v *view) relPath() string {
escapedName := pathEscape(v.name)
return path.Join(v.db.relPath(), "_api", "view", escapedName)
}
// Name returns the name of the view.
func (v *view) Name() string {
return v.name
}
// Type returns the type of this view.
func (v *view) Type() ViewType {
return v.viewType
}
// ArangoSearchView returns this view as an ArangoSearch view.
// When the type of the view is not ArangoSearch, an error is returned.
func (v *view) ArangoSearchView() (ArangoSearchView, error) {
if v.viewType != ViewTypeArangoSearch {
return nil, WithStack(newArangoError(http.StatusConflict, 0, fmt.Sprintf("Type must be '%s', got '%s'", ViewTypeArangoSearch, v.viewType)))
}
return &viewArangoSearch{view: *v}, nil
}
func (v *view) ArangoSearchViewAlias() (ArangoSearchViewAlias, error) {
if v.viewType != ViewTypeArangoSearchAlias {
return nil, WithStack(newArangoError(http.StatusConflict, 0, fmt.Sprintf("Type must be '%s', got '%s'", ViewTypeArangoSearchAlias, v.viewType)))
}
return &viewArangoSearchAlias{view: *v}, nil
}
// Database returns the database containing the view.
func (v *view) Database() Database {
return v.db
}
func (v *view) Rename(ctx context.Context, newName string) error {
if newName == "" {
return WithStack(InvalidArgumentError{Message: "newName is empty"})
}
req, err := v.conn.NewRequest("PUT", path.Join(v.relPath(), "rename"))
if err != nil {
return WithStack(err)
}
input := struct {
Name string `json:"name"`
}{
Name: newName,
}
if _, err := req.SetBody(input); err != nil {
return WithStack(err)
}
applyContextSettings(ctx, req)
resp, err := v.conn.Do(ctx, req)
if err != nil {
return WithStack(err)
}
if err := resp.CheckStatus(200); err != nil {
return WithStack(err)
}
v.name = newName
return nil
}
// Remove removes the entire view.
// If the view does not exist, a NotFoundError is returned.
func (v *view) Remove(ctx context.Context) error {
req, err := v.conn.NewRequest("DELETE", v.relPath())
if err != nil {
return WithStack(err)
}
applyContextSettings(ctx, req)
resp, err := v.conn.Do(ctx, req)
if err != nil {
return WithStack(err)
}
if err := resp.CheckStatus(200); err != nil {
return WithStack(err)
}
return nil
}