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Technology Packages

Beside the products jadice flow offers some separately licensed technology packages with some specific functionalities. Below you can find all technology packages and their installation and configuration.

Existing Technology Packages​

TessOCR​

The "TessOCR" technology package performs OCR analysis on TIFF and PDF documents and returns an enriched PDF, text or hOCR.

Worker definition for the workers.yaml​

The worker definition for the OCR technology package looks like this:

jadice-flow.workers:
  workerDefinitions:
  - workerName: "tessocr"
    description: "Performs optical character recognition on the given image parts\
    \ and stores the result as new part"
    processorClass: "com.jadice.flow.controller.server.processor.impl.TessOCRProcessor"
    workerURL: "http://jf-worker-tessocr/"
    infoTags:
    - "PART_BASED"
    - "IMAGE_PROCESSING"
    - "REMOTE"
    workerParameters:
    - name: "output-formats"
      type: "com.jadice.flow.worker.ocr.OCROutputSetting"
      subTypes: null
      value: "\"TEXT\""
      description: "OCR output format(s)"

Note: Remember that the worker parameters are just samples and have to be updated.

Add this part to your worker.yaml to use the technology package (see Installing the technology package - Step 5).

Usage​

After that, you can use the worker and create a new jobtemplate or update an existing one:
Some jobtemplate examples you can find in the Readme of the worker-tessocr: Worker Doku. In the UI go to: Job configuration -> Create new template -> Add step -> Worker name. You should see the tessocr worker name there if you set everything up correctly. Then choose the worker and edit the step name, description and add a password.
For more information see: Configure a job flow.

To create a job go to Job overview -> Create job -> Job template and click on the name of the job template you just created. Next you need to click on the Add item button and chose the file you want to encrypt (if it doesn't have a password) or decrypt.

After clicking ok you should see the job has started and will not take long to complete. The job result should have the decrypted/encrypted file that you can download.

PDF Permissions​

The "PDF Permissions" technology package handles passwords on PDF documents.

Note: Before you use this technology package, you have to consult your legal department to determine whether and in which cases this usage is allowed for your processes and type of documents. Please contact jadice-support@levigo.de for more information about this technology package.

Worker definition for the workers.yaml​

The worker definition for the PDF Permission technology package looks like this:

jadice-flow.workers:
  workerDefinitions:
  - workerName: "pdf-permissions"
    description: "Handle passwords on PDF"
    processorClass: "com.jadice.flow.controller.server.processor.RemoteItemProcessor"
    workerURL: "http://jf-worker-pdfpermissions/"
    infoTags:
      - "PART_BASED"
      - "REMOTE"
    workerParameters:
      - name: "passwordList"
        type: "java.util.List"
        subTypes: "com.jadice.flow.controller.util.Password"
        value: "[{\"raw\":\"test\"}]"
        description: "owner passwords"

Note: Remember that the worker parameters are just samples and have to be updated.

Add this part to your worker.yaml to use the technology package (see Installing the technology package - Step 5).

Usage​

After that, you can use the worker and create a new jobtemplate or update an existing one:
In the UI go to: Job configuration -> Create new template -> Add step -> Worker name. You should see the pdf-permissions worker name there if you set everything up correctly. Then choose the worker and edit the step name, description and add a password.
For more information see: Configure a job flow.

To create a job go to Job overview -> Create job -> Job template and click on the name of the job template you just created. Next you need to click on the Add item button and chose the file you want to encrypt (if it doesn't have a password) or decrypt.

After clicking ok you should see the job has started and will not take long to complete. The job result should have the decrypted/encrypted file that you can download.

ClamAV​

The "ClamAV" technology package performs checks on incoming files for viruses. The check is carried out with the help of ClamAV.

Note: ClamAV is an open source antivirus toolkit. For use with this worker, ClamAV must be provided as a daemon service or run in a Docker container.

Worker definition for the workers.yaml​

The worker definition for the ClamAV technology package looks like this:

jadice-flow.workers:
  workerDefinitions:
  - workerName: "clam-av"
    description: "Performs a virus check"
    processorClass: "com.jadice.flow.controller.server.processor.RemotePartProcessor"
    workerURL: "http://jf-worker-clamav/"
    infoTags:
      - "PART_BASED"
      - "REMOTE"
    workerParameters: []

Note: Remember that the worker parameters are just samples and have to be updated.

Add this part to your worker.yaml to use the technology package (see Installing the technology package - Step 5).

ClamAV worker setup​

For ClamAV to work you ned to add a special configuration to the values.yaml that you create in Step 2.

jf-worker-clamav:
  enabled: true
  enableJsonLogging: false
  resources:
    requests:
      cpu: 250m
      memory: 1024Mi
    limits:
      cpu: 250m
      memory: 1024Mi
  worker:
    application:
      annotation: {}
  startupProbe:
    failureThreshold: 50
  sidecarContainers:
    - name: clamav
      image: clamav/clamav:1.4.2
      resources:
        requests:
          cpu: 500m
          memory: 2048Mi
        limits:
          cpu: 500m
          memory: 2048Mi
      ports:
        - name: clamav
          containerPort: 3310
          protocol: TCP
      readinessProbe:
        tcpSocket:
          port: clamav
        initialDelaySeconds: 0
        periodSeconds: 60
        timeoutSeconds: 1
        successThreshold: 1
        failureThreshold: 3
      livenessProbe:
        exec:
          command:
            - clamdcheck.sh
        initialDelaySeconds: 0
        periodSeconds: 60
        timeoutSeconds: 1
        successThreshold: 1
        failureThreshold: 3
      startupProbe:
        tcpSocket:
          path: /
          port: clamav
        initialDelaySeconds: 0
        failureThreshold: 180
        periodSeconds: 10
        timeoutSeconds: 2

Adjust the config according to your needs

Usage​

After that, you can use the worker and create a new jobtemplate or update an existing one:
In the UI go to: Job configuration -> Create new template -> Add step -> Worker name. You should see the clamav worker name there if you set everything up correctly. Then choose the worker and edit the step name and description.
For more information see: Configure a job flow.

To create a job go to Job overview -> Create job -> Job template and click on the name of the job template you just created. Next you need to click on the Add item button and chose the file you want to check for viruses.

After clicking ok you should see the job has started and will not take long to complete. The job result should have the checked up file.

MS Office​

The "MS Office" technology package allows converting office files with Microsoft Office. It requires an MS Windows machine and is installed, unlike all other technology packages, not as a dockerized application but as a java server application.

Installation of the worker-msoffice​

The installation is described in the Readme of the worker-msoffice: Workers.

Integration with a jadice flow bundle​

To use the worker from a jadice flow bundle, the worker must be registered with the jf-controller. This can be done in two ways:

  1. Worker definition for the workers.yaml

    Add this entry to the list of workerDefinitions in your worker.yaml.

    msoffice worker definition
    jadice-flow.workers:
      workerDefinitions:
       - workerName: "msoffice"
         description: "Converts MS Office formats to PDF"
         processorClass: "com.jadice.flow.controller.server.processor.RemotePartProcessor"
         workerURL: "http://my-windows-machine:8080/"
         infoTags:
          - "PART_BASED"
          - "REMOTE"
         workerParameters:
           - name: "password"
             type: "java.lang.String"
             subTypes: null
             value: null
             description: "document password (default: null)"
           - name: "targetMimeType"
             type: "java.lang.String"
             subTypes: null
             value: null
             description: "requested MIME type of the conversion result (default: application/pdf)"
           - name: "filename"
             type: "java.lang.String"
             subTypes: null
             value: null
             description: "fallback filename to generate a temporary file (default: word.doc)"
           - name: "exportRange"
             type: "java.lang.String"
             subTypes: null
             value: null
             description: "The range of pages to export/convert. If the range is not valid\
              \ all pages will be processed. (default: null -> ALL_PAGES)"
           - name: "openFormat"
             type: "com.jadice.flow.worker.msoffice.WordNodeConfig$WdOpenFormat"
             subTypes: null
             value: null
             description: "the format which converter will be used to open the document (default:\
              \ WordNodeConfig.WdOpenFormat.WD_OPEN_FORMAT_AUTO)"
           - name: "exportMarkup"
             type: "java.lang.Boolean"
             subTypes: null
             value: null
             description: "Switch if MS Word shall export the document with or without markup.\
              \ (default: false)"
           - name: "emptyWorkbookHandlingMode"
             type: "com.jadice.flow.worker.msoffice.ExcelNodeConfig$EmptyWorkbookHandlingMode"
             subTypes: null
             value: null
             description: "the empty workbook handling mode for conversions (default: ExcelNodeConfig.EmptyWorkbookHandlingMode.NONE)"
           - name: "replacementPageStyleSheetLocation"
             type: "java.lang.String"
             subTypes: null
             value: null
             description: "This variable determines the location of the replacement page\
              \ stylesheet on the server (default: resource:/ms-office/emptyExcelReplacementStylesheet.xsl)"
           - name: "viewsToExport"
             type: "java.util.List"
             subTypes: null
             value: null
             description: "the type of View to export (default: [\"PJ_VIEW_GANTT\"])"

  2. Register via hazelcast auto discovery

    hazelcast:
      network:
        join:
          tcp-ip:
            enabled: true
            member-list:
             - my-windows-machine

Usage​

After that, you can use the worker and create a new jobtemplate or update an existing one: \

Example jobtemplate
  - jobName: "msoffice"
    description: null
    properties: {}
    enabled: true
    stepTemplates:
    - stepName: "msoffice"
      workerDefinitionName: "msoffice"
      inputMimeTypes: []
      inputFilterJson: "[]"
      expectsNewPartResult: true
      markSrcAsMetaOnResult: true
      parameters:
      - name: "password"
        type: "java.lang.String"
        subTypes: null
        value: null
        description: "document password (default: null)"
      - name: "targetMimeType"
        type: "java.lang.String"
        subTypes: null
        value: null
        description: "requested MIME type of the conversion result (default: application/pdf)"
      - name: "filename"
        type: "java.lang.String"
        subTypes: null
        value: null
        description: "fallback filename to generate a temporary file (default: word.doc)"
      - name: "exportRange"
        type: "java.lang.String"
        subTypes: null
        value: null
        description: "The range of pages to export/convert. If the range is not valid\
          \ all pages will be processed. (default: null -> ALL_PAGES)"
      - name: "openFormat"
        type: "com.jadice.flow.worker.msoffice.WordNodeConfig$WdOpenFormat"
        subTypes: null
        value: null
        description: "the format which converter will be used to open the document (default:\
          \ WordNodeConfig.WdOpenFormat.WD_OPEN_FORMAT_AUTO)"
      - name: "exportMarkup"
        type: "java.lang.Boolean"
        subTypes: null
        value: null
        description: "Switch if MS Word shall export the document with or without markup.\
          \ (default: false)"
      - name: "emptyWorkbookHandlingMode"
        type: "com.jadice.flow.worker.msoffice.ExcelNodeConfig$EmptyWorkbookHandlingMode"
        subTypes: null
        value: null
        description: "the empty workbook handling mode for conversions (default: ExcelNodeConfig.EmptyWorkbookHandlingMode.NONE)"
      - name: "replacementPageStyleSheetLocation"
        type: "java.lang.String"
        subTypes: null
        value: null
        description: "This variable determines the location of the replacement page\
          \ stylesheet on the server (default: resource:/ms-office/emptyExcelReplacementStylesheet.xsl)"
      - name: "viewsToExport"
        type: "java.util.List"
        subTypes: null
        value: null
        description: "the type of View to export (default: [\"PJ_VIEW_GANTT\"])"
    jobFlow:
       - from: null
         "on": "*"
         to: "msoffice"

To create a new jobtemplate in the UI go to: Job configuration -> Create new template -> Add step -> Worker name. You should see the msoffice worker name there if you set everything up correctly. Then choose the worker and edit the step name and description.
For more information see: Configure a job flow.

To create a job, go to Job overview -> Create job -> Job template and click on the name of the job template you just created. Next you need to click on the Add item button and choose the file you want to convert.

Install a technology package​

Prerequisites​

Before you begin, make sure you have the following prerequisites installed on your system:

Note: The default storage for storing job results is Eureka. For more information see: Install products

Where to get​

To add a Helm repository to your repositories you can execute the following commands:

$ helm repo add levigo https://artifacts.jadice.com/repository/helm-charts/ --username <username>
Password: <enter your password>

When you see the password prompt please enter your password.

You now have access to the Helm charts of the technology packages in your helm cli.

Installing the technology package​

To use the technology package with a jadice flow product, you have to create and install a new local helm Chart. How to do this is described below in the following steps.

In the end the origin folder should have the following structure:

origin folder
  value.yaml
  Chart.yaml
  templates
    cm-workers.yaml
  config
    workers.yaml

  1. Create a folder

    Create a new folder for the Helm Chart configuration files via the user interface or command line and navigate into it. In the following instructions this folder will be called “origin folder”.

  2. Values.yaml

    Create a new file "values.yaml" with the following content:

    Content values.yaml
    global:
      imagePullSecrets:
        - name: "registry-secret"
      jadiceFlow:
        storageType: "eureka"
        existingSecrets:
          eureka: "eureka-secret"

    jf-document-conversion:
      jadiceFlow:
        jf-controller:
          workersConfigMap: jf-email-conversion-workers-cust
        eureka:  
          elastic:
            enabled: false
          elasticsearch:
            enabled: false

        secrets:
          imageRegistry:
            server: registry.jadice.com
            username: 
            password:

    Note: Insert your username and password. Also note, that the workersConfigMap name has to be the same as in step 4. Beside that overwrite the bundle name (e.g. in this case jf-document-conversion) (line 9) with your bundle name (e.g. jf-email-conversion).

  3. Chart.yaml

    Create in the same folder a new file "Chart.yaml" with the following content:

    Example Content Chart.yaml for the technology package "pdf permissions": 
    apiVersion: v2
    name: jf-email-conversion-extended
    description: jadice flow email conversion with technology package
    type: application
    version: 2.0.0
    appVersion: 2.0.0

    dependencies:
      - name: jf-email-conversion
        version: 0.10.2
        repository: https://artifacts.jadice.com/repository/helm-charts/
      - name: jf-worker-pdfpermissions
        version: 1.3.0
        repository: https://artifacts.jadice.com/repository/helm-charts/
        condition: jf-worker-pdfpermissions.enabled

    Note: Insert a corresponding description, version and jadice flow product or technology package name. Also remember to use the latest version of the jadice flow product and used technology package.

  4. Templates folder

    Create a new folder named "templates". Navigate into it and create a new file "cm-workers.yaml" with the following content:

    Content cm-workers.yaml
    ---
    apiVersion: v1
    kind: ConfigMap
    metadata:
      name: jf-email-conversion-workers-cust
      labels:
        {{- include "jfController.labels" . | nindent 4 }}
    data:
    {{ (.Files.Glob "config/workers.yaml").AsConfig | indent 2 }}
    ...

    Note: The "name" value has to be the name of the "workersConfigMap" in step 2.

  5. Configuration folder

    • Navigate back to the origin folder
    • Please download the Helm Chart of your used bundle with the following command: 
      $ helm pull levigo/<bundle-name>
      Note: Enter the name of your jadice flow product (e.g. helm pull levigo/jf-email-conversion).
    • Extract the downloaded jadice flow product
    • Navigate into the downloaded Helm Chart folder and copy the file "<product>/config/workers.yaml".
    • Navigate back to the origin folder and create a folder called "config". Paste the copied workers.yaml into that folder.
    • Open the worker.yaml and add the worker definition of the technology package there. You can find the corresponding worker definition of each technology package in the description above (see chapters "Worker definition for the workers.yaml"). For example the worker definition for the PDF Permission technology package looks like this:
    Example worker definition
    jadice-flow.workers:
      workerDefinitions:
      - workerName: "pdf-permissions"
        description: "Handle passwords on PDF"
        processorClass: "com.jadice.flow.controller.server.processor.RemoteItemProcessor"
        workerURL: "http://jf-worker-pdfpermissions/"
        infoTags:
          - "PART_BASED"
          - "REMOTE"
        workerParameters:
          - name: "passwordList"
            type: "java.util.List"
            subTypes: "com.jadice.flow.controller.util.Password"
            value: "[{\"raw\":\"test\"}]"
            description: "owner passwords"
    • Delete the extracted jadice flow product and the downloaded *.tgz file in your folder.

    Note: Remember that the worker parameters are just samples and have to be updated.

  6. Build the Helm Chart

    Navigate to the origin folder and run the following command:

      $ helm dependency update

  7. Install the local Helm Chart

    Run in the origin folder the following command:

      $ helm install -f values.yaml <releasename> -n <namespace> --create-namespace .

    Note: Insert a release and namespace name for your local helm Chart.

After that, you can use the technology package together with a jadice flow product.

Validate Installation​

To validate the local Helm Chart deployment run:

     $ kubectl get pods -n <namespace>

After that you should see the running workers of the installed jadice flow product and the technology package.

Uninstalling the Chart​

To uninstall the local Helm Chart deployment run:

     $ helm uninstall <releasename> -n <namespace>

Handle jadice flow product releases​

To update the jadice flow product version or technology package version you have to open the Chart.yaml in the origin folder. There you have to insert the new released version of the product at dependencies -> version.

Example: Insert a new version "1.25.2" of the jf-email-conversion product in the Chart.yaml (see line 10) 
apiVersion: v2
name: jf-email-conversion-extended
description: jadice flow email conversion with technology package
type: application
version: 2.0.0
appVersion: 2.0.0

dependencies:
  - name: jf-email-conversion
    version: 1.25.2
    repository: https://artifacts.jadice.com/repository/helm-charts/
  - name: jf-worker-pdfpermissions
    version: 1.3.0
    repository: https://artifacts.jadice.com/repository/helm-charts/
    condition: jf-worker-pdfpermissions.enabled
Last updated on by Simon Welsch