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Diffstat (limited to 'pipelinepreprocess/aws.go')
-rw-r--r--pipelinepreprocess/aws.go269
1 files changed, 0 insertions, 269 deletions
diff --git a/pipelinepreprocess/aws.go b/pipelinepreprocess/aws.go
deleted file mode 100644
index 1ac06de..0000000
--- a/pipelinepreprocess/aws.go
+++ /dev/null
@@ -1,269 +0,0 @@
-package main
-
-import (
- "errors"
- "fmt"
- "log"
- "os"
- "regexp"
- "time"
-
- "github.com/aws/aws-sdk-go/aws"
- "github.com/aws/aws-sdk-go/aws/session"
- "github.com/aws/aws-sdk-go/service/s3"
- "github.com/aws/aws-sdk-go/service/s3/s3manager"
- "github.com/aws/aws-sdk-go/service/sqs"
-)
-
-const PreprocPattern = `_bin[0-9].[0-9].png`
-const HeartbeatTime = 60
-
-type awsConn struct {
- // these need to be set before running Init()
- region string
- logger *log.Logger
-
- // these are used internally
- sess *session.Session
- s3svc *s3.S3
- sqssvc *sqs.SQS
- downloader *s3manager.Downloader
- uploader *s3manager.Uploader
- prequrl, ocrqurl, analysequrl string
-}
-
-func (a *awsConn) Init() error {
- if a.region == "" {
- return errors.New("No region set")
- }
- if a.logger == nil {
- return errors.New("No logger set")
- }
-
- var err error
- a.sess, err = session.NewSession(&aws.Config{
- Region: aws.String(a.region),
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Failed to set up aws session: %s", err))
- }
- a.s3svc = s3.New(a.sess)
- a.sqssvc = sqs.New(a.sess)
- a.downloader = s3manager.NewDownloader(a.sess)
- a.uploader = s3manager.NewUploader(a.sess)
-
- a.logger.Println("Getting preprocess queue URL")
- result, err := a.sqssvc.GetQueueUrl(&sqs.GetQueueUrlInput{
- QueueName: aws.String("rescribepreprocess"),
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Error getting preprocess queue URL: %s", err))
- }
- a.prequrl = *result.QueueUrl
-
- a.logger.Println("Getting OCR queue URL")
- result, err = a.sqssvc.GetQueueUrl(&sqs.GetQueueUrlInput{
- QueueName: aws.String("rescribeocr"),
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Error getting OCR queue URL: %s", err))
- }
- a.ocrqurl = *result.QueueUrl
-
- a.logger.Println("Getting analyse queue URL")
- result, err = a.sqssvc.GetQueueUrl(&sqs.GetQueueUrlInput{
- QueueName: aws.String("rescribeanalyse"),
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Error getting analyse queue URL: %s", err))
- }
- a.analysequrl = *result.QueueUrl
-
- return nil
-}
-
-func (a *awsConn) CheckQueue(url string) (Qmsg, error) {
- msgResult, err := a.sqssvc.ReceiveMessage(&sqs.ReceiveMessageInput{
- MaxNumberOfMessages: aws.Int64(1),
- VisibilityTimeout: aws.Int64(HeartbeatTime * 2),
- WaitTimeSeconds: aws.Int64(20),
- QueueUrl: &url,
- })
- if err != nil {
- return Qmsg{}, err
- }
-
- if len(msgResult.Messages) > 0 {
- msg := Qmsg{ Handle: *msgResult.Messages[0].ReceiptHandle, Body: *msgResult.Messages[0].Body }
- a.logger.Println("Message received:", msg.Body)
- return msg, nil
- } else {
- return Qmsg{}, nil
- }
-}
-
-func (a *awsConn) CheckPreQueue() (Qmsg, error) {
- a.logger.Println("Checking preprocessing queue for new messages")
- return a.CheckQueue(a.prequrl)
-}
-
-func (a *awsConn) CheckOCRQueue() (Qmsg, error) {
- a.logger.Println("Checking OCR queue for new messages")
- return a.CheckQueue(a.ocrqurl)
-}
-
-func (a *awsConn) CheckAnalyseQueue() (Qmsg, error) {
- a.logger.Println("Checking analyse queue for new messages")
- return a.CheckQueue(a.ocrqurl)
-}
-
-func (a *awsConn) QueueHeartbeat(t *time.Ticker, msgHandle string, qurl string) error {
- for _ = range t.C {
- duration := int64(HeartbeatTime * 2)
- _, err := a.sqssvc.ChangeMessageVisibility(&sqs.ChangeMessageVisibilityInput{
- ReceiptHandle: &msgHandle,
- QueueUrl: &qurl,
- VisibilityTimeout: &duration,
- })
- if err != nil {
- return errors.New(fmt.Sprintf("Heartbeat error updating queue duration: %s", err))
- }
- }
- return nil
-}
-
-func (a *awsConn) PreQueueHeartbeat(t *time.Ticker, msgHandle string) error {
- a.logger.Println("Starting preprocess queue heartbeat")
- return a.QueueHeartbeat(t, msgHandle, a.prequrl)
-}
-
-func (a *awsConn) OCRQueueHeartbeat(t *time.Ticker, msgHandle string) error {
- a.logger.Println("Starting ocr queue heartbeat")
- return a.QueueHeartbeat(t, msgHandle, a.ocrqurl)
-}
-
-func (a *awsConn) ListObjects(bucket string, prefix string) ([]string, error) {
- var names []string
- err := a.s3svc.ListObjectsV2Pages(&s3.ListObjectsV2Input{
- Bucket: aws.String(bucket),
- Prefix: aws.String(prefix),
- }, func(page *s3.ListObjectsV2Output, last bool) bool {
- for _, r := range page.Contents {
- names = append(names, *r.Key)
- }
- return true
- })
- return names, err
-}
-
-func (a *awsConn) ListToPreprocess(bookname string) ([]string, error) {
- var names []string
- preprocessed := regexp.MustCompile(PreprocPattern)
- objs, err := a.ListObjects("rescribeinprogress", bookname)
- if err != nil {
- return names, err
- }
- // Filter out any object that looks like it's already been preprocessed
- for _, n := range objs {
- if preprocessed.MatchString(n) {
- a.logger.Println("Skipping item that looks like it has already been processed", n)
- continue
- }
- names = append(names, n)
- }
- return names, nil
-}
-
-func (a *awsConn) ListToOCR(bookname string) ([]string, error) {
- var names []string
- preprocessed := regexp.MustCompile(PreprocPattern)
- objs, err := a.ListObjects("rescribeinprogress", bookname)
- if err != nil {
- return names, err
- }
- // Filter out any object that looks like it hasn't already been preprocessed
- for _, n := range objs {
- if ! preprocessed.MatchString(n) {
- a.logger.Println("Skipping item that looks like it is not preprocessed", n)
- continue
- }
- names = append(names, n)
- }
- return names, nil
-}
-
-func (a *awsConn) AddToQueue(url string, msg string) error {
- _, err := a.sqssvc.SendMessage(&sqs.SendMessageInput{
- MessageBody: &msg,
- QueueUrl: &url,
- })
- return err
-}
-
-func (a *awsConn) AddToOCRQueue(msg string) error {
- return a.AddToQueue(a.ocrqurl, msg)
-}
-
-func (a *awsConn) AddToAnalyseQueue(msg string) error {
- return a.AddToQueue(a.analysequrl, msg)
-}
-
-func (a *awsConn) DelFromQueue(url string, handle string) error {
- _, err := a.sqssvc.DeleteMessage(&sqs.DeleteMessageInput{
- QueueUrl: &url,
- ReceiptHandle: &handle,
- })
- return err
-}
-
-func (a *awsConn) DelFromPreQueue(handle string) error {
- return a.DelFromQueue(a.prequrl, handle)
-}
-
-func (a *awsConn) DelFromOCRQueue(handle string) error {
- return a.DelFromQueue(a.ocrqurl, handle)
-}
-
-func (a *awsConn) Download(bucket string, key string, path string) error {
- f, err := os.Create(path)
- if err != nil {
- return err
- }
- defer f.Close()
-
- _, err = a.downloader.Download(f,
- &s3.GetObjectInput{
- Bucket: aws.String(bucket),
- Key: &key,
- })
- return err
-}
-
-func (a *awsConn) DownloadFromInProgress(key string, path string) error {
- a.logger.Println("Downloading", key)
- return a.Download("rescribeinprogress", key, path)
-}
-
-func (a *awsConn) Upload(bucket string, key string, path string) error {
- file, err := os.Open(path)
- if err != nil {
- log.Fatalln("Failed to open file", path, err)
- }
- defer file.Close()
-
- _, err = a.uploader.Upload(&s3manager.UploadInput{
- Bucket: aws.String(bucket),
- Key: aws.String(key),
- Body: file,
- })
- return err
-}
-
-func (a *awsConn) UploadToInProgress(key string, path string) error {
- a.logger.Println("Uploading", path)
- return a.Upload("rescribeinprogress", key, path)
-}
-
-func (a *awsConn) Logger() *log.Logger {
- return a.logger
-}
generated by cgit v1.2.1-24-ge1ad (git 2.21.0) at 2024-11-04 21:45:29 +0000