Example #1
0
// NextPage returns a new Request that can be executed to return the next
// page of result data. Call .Send() on this request to execute it.
func (r *Request) NextPage() *Request {
	tokens := r.nextPageTokens()
	if tokens == nil {
		return nil
	}

	data := reflect.New(reflect.TypeOf(r.Data).Elem()).Interface()
	nr := New(r.Service, r.Handlers, r.Retryer, r.Operation, awsutil.CopyOf(r.Params), data)
	for i, intok := range nr.Operation.InputTokens {
		awsutil.SetValueAtAnyPath(nr.Params, intok, tokens[i])
	}
	return nr
}
Example #2
0
func fillPresignedURL(r *request.Request) {
	if !r.ParamsFilled() {
		return
	}

	params := r.Params.(*CopySnapshotInput)

	// Stop if PresignedURL/DestinationRegion is set
	if params.PresignedUrl != nil || params.DestinationRegion != nil {
		return
	}

	// First generate a copy of parameters
	r.Params = awsutil.CopyOf(r.Params)
	params = r.Params.(*CopySnapshotInput)

	// Set destination region. Avoids infinite handler loop.
	// Also needed to sign sub-request.
	params.DestinationRegion = r.Service.Config.Region

	// Create a new client pointing at source region.
	// We will use this to presign the CopySnapshot request against
	// the source region
	config := r.Service.Config.Copy().
		WithEndpoint("").
		WithRegion(*params.SourceRegion)

	client := New(config)

	// Presign a CopySnapshot request with modified params
	req, _ := client.CopySnapshotRequest(params)
	url, err := req.Presign(300 * time.Second) // 5 minutes should be enough.

	if err != nil { // bubble error back up to original request
		r.Error = err
	}

	// We have our URL, set it on params
	params.PresignedUrl = &url
}
Example #3
0
func TestCopyIgnoreNilMembers(t *testing.T) {
	type Foo struct {
		A *string
		B []string
		C map[string]string
	}

	f := &Foo{}
	assert.Nil(t, f.A)
	assert.Nil(t, f.B)
	assert.Nil(t, f.C)

	var f2 Foo
	awsutil.Copy(&f2, f)
	assert.Nil(t, f2.A)
	assert.Nil(t, f2.B)
	assert.Nil(t, f2.C)

	fcopy := awsutil.CopyOf(f)
	f3 := fcopy.(*Foo)
	assert.Nil(t, f3.A)
	assert.Nil(t, f3.B)
	assert.Nil(t, f3.C)
}
Example #4
0
func ExampleCopyOf() {
	type Foo struct {
		A int
		B []*string
	}

	// Create the initial value
	str1 := "hello"
	str2 := "bye bye"
	f1 := &Foo{A: 1, B: []*string{&str1, &str2}}

	// Do the copy
	v := awsutil.CopyOf(f1)
	var f2 *Foo = v.(*Foo)

	// Print the result
	fmt.Println(awsutil.Prettify(f2))

	// Output:
	// {
	//   A: 1,
	//   B: ["hello","bye bye"]
	// }
}