Create a conversion module

In this tutorial we will focus on the possibility of creating a document conversion service dedicated to a single type of documents.

Install the dedicated conversion server

Extract the content of the classic rendition packaging on the server that you want to dedicate to a conversion type.

In our example, we will dedicate a server to the Office file conversion.

Go to the modules/TaskConversion/ conversion module folder and drop in the following configuration file (application.yml):

app:
  eureka:
    hostname: <rendition_host_name>

eureka:
  instance:
    metadataMap:
      instanceId: ${eureka.instance.instanceId}
      name: ${spring.application.name}
      context: '[{"context":"/document/convert/","validMimeTypes": []},
      {"context":"/document/signature/validate/","validMimeTypes": []},
      {"context":"/document/alter/","validMimeTypes": []},
      {"context":"/document/image/","validMimeTypes": ["video/mp4"]}]'
      convertMimeType: 'text/rtf,
      application/msword,application/vnd.openxmlformats-officedocument.wordprocessingml.document,
      application/vnd.ms-word.document.macroEnabled.12,application/vnd.openxmlformats-officedocument.wordprocessingml.template,
      application/vnd.ms-word.template.macroEnabled.12,application/vnd.ms-excel,application/x-ms-excel,
      application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/vnd.ms-excel.sheet.macroEnabled.12,
      application/vnd.openxmlformats-officedocument.spreadsheetml.template,application/vnd.ms-excel.template.macroEnabled.12,
      application/vnd.ms-powerpoint,application/vnd.openxmlformats-officedocument.presentationml.presentation,
      application/vnd.ms-powerpoint.presentation.macroEnabled.12,application/vnd.openxmlformats-officedocument.presentationml.template,
      application/vnd.ms-powerpoint.template.macroEnabled.12,application/visio,application/x-visio,
      application/vnd.visio,application/vnd.ms-visio,application/visio.drawing,
      application/vsd,application/x-vsd,image/x-vsd,zz-application/zz-winassoc-vsd,
      application/vnd.oasis.opendocument.text,application/vnd.oasis.opendocument.spreadsheet,application/vnd.ms-project,
      application/vnd.oasis.opendocument.presentation,application/vnd.oasis.opendocument.graphics'
server:
  port: 10001

nurse:
  outPath: ${tmp.dir.doc}
  timeInterval: ${health.time.interval}
  samplesDirectory: ../../samples/
  components:
    - functionality: TKC_TextConversion
      factoryName: "textFactory"
      samplePath: "test.docx"
      docIdStr: "0ff1c3S4mpl3"

First, we need to target the rendition server that will be reached by this isolated conversion micro service (replace <rendition_host_name> by your rendition server IP/hostname):

app:
  eureka:
    hostname: <rendition_host_name>

Here we replicate the default configuration of the micro conversion service, but we change the supported mime types to reduce to Office.

  convertMimeType: 'text/rtf,
  application/msword,application/vnd.openxmlformats-officedocument.wordprocessingml.document,
  application/vnd.ms-word.document.macroEnabled.12,application/vnd.openxmlformats-officedocument.wordprocessingml.template,
  application/vnd.ms-word.template.macroEnabled.12,application/vnd.ms-excel,application/x-ms-excel,
  application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/vnd.ms-excel.sheet.macroEnabled.12,
  application/vnd.openxmlformats-officedocument.spreadsheetml.template,application/vnd.ms-excel.template.macroEnabled.12,
  application/vnd.ms-powerpoint,application/vnd.openxmlformats-officedocument.presentationml.presentation,
  application/vnd.ms-powerpoint.presentation.macroEnabled.12,application/vnd.openxmlformats-officedocument.presentationml.template,
  application/vnd.ms-powerpoint.template.macroEnabled.12,application/visio,application/x-visio,
  application/vnd.visio,application/vnd.ms-visio,application/visio.drawing,
  application/vsd,application/x-vsd,image/x-vsd,zz-application/zz-winassoc-vsd,
  application/vnd.oasis.opendocument.text,application/vnd.oasis.opendocument.spreadsheet,application/vnd.ms-project,
  application/vnd.oasis.opendocument.presentation,application/vnd.oasis.opendocument.graphics'

Then we change the default port, so as not to conflict with the standard micro service.

server:
  port: 10001

As we remove features, we also reduce its spectrum of automatic checks on Office documents.

nurse:
  outPath: ${tmp.dir.doc}
  timeInterval: ${health.time.interval}
  samplesDirectory: ../../samples/
  components:
    - functionality: TKC_TextConversion
      factoryName: "textFactory"
      samplePath: "test.docx"
      docIdStr: "0ff1c3S4mpl3"

Once all this configuration done, it is possible to launch this micro service unitarily with the command:

C:\Rendition4Office\modules\TaskConversion> java -Xmx1024m -jar task-conversion*.jar

It is important to go to the modules/TaskConversion/ module folder to simulate a classic rendition launch.

Classic rendition server side

We want, in our traditional ARender installation, to remove from the TaskConversion micro service the Office documents that will now be served by our dedicated server.

To do this, you must once again add a configuration file (application.yml) next to the TaskConversion micro service jar:

    eureka:
      instance:
        metadataMap:
          instanceId: ${eureka.instance.instanceId}
          name: ${spring.application.name}
          context: '[{"context":"/document/convert/","validMimeTypes": []},
          {"context":"/document/signature/validate/","validMimeTypes": []},
          {"context":"/document/alter/","validMimeTypes": []},
          {"context":"/document/image/","validMimeTypes": ["video/mp4"]}]'
          convertMimeType: 'message/rfc822,application/vnd.ms-outlook,text/html,application/zip,application/x-zip,
          application/x-zip-compressed,application/x-rar-compressed,application/x-rar,application/java-archive,
          text/plain,image/png,image/jpeg,image/gif,image/x-ms-bmp,image/x-bmp,image/x-portable-bitmap,
          image/vnd.adobe.photoshop,image/x-eps,application/postscript,application/dicom,application/pcx,
          application/x-pcx,image/pcx,image/x-pc-paintbrush,image/x-pcx,zz-application/zz-winassoc-pcx,
          image/tiff,video/quicktime,video/mp4,video/3gpp,audio/x-wav,audio/mp3,video/x-flv,video/mpeg,
          video/x-msvideo,video/x-matroska,video/x-ms-asf,application/x-empty'
    server:
      port: 9999

    nurse:
      outPath: ${tmp.dir.doc}
      timeInterval: ${health.time.interval}
      samplesDirectory: ../../samples/
      components:
        - functionality: TKC_MailConversion
          factoryName: "mailFactory"
          samplePath: "test.msg"
          docIdStr: "m41lS4mpl3"
        - functionality: TKC_VideoConversion
          factoryName: "videoConversionFactory"
          samplePath: "video.mp4"
          docIdStr: "v1d30S4mpl3"
        - functionality: TKC_ImageConversion
          factoryName: "imageFactory"
          samplePath: "img.png"
          docIdStr: "1m4g3S4mpl3"

Here, the treatment is the reverse of what we did for the dedicated service.

The port is the default port, but the supported mime types are the base ones except Office, and so are the auto-test components.

Once the classic rendition server has been started, this micro service will be started and will take this configuration without the Office mime types.

Conclusion

Now it’s your turn to choose which file types you want to isolate, or use a dedicated high performance machine to convert video for example.

There are many ideas and even more possibilities !