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Karl515
Karl515
Level 5
February 4, 2019
Solved

Get Asset metadata (height and width)

  • February 4, 2019
  • 3 replies
  • 5706 views

Hello, I've read lots but still haven't got a way to get asset metadata specifically height x width.

I get asset data by copy pasting "file" to my cq:dialog.

I'm using Java models (as what I have read) to get asset like this.

it returns a string to my DAM asset ex.

/content/assets/myfolder/asset.jpg.

how can I get it's metadata?

Previous thread:

Get image size thru thru code

This example seems cool but I can't populate the image resource field.

    This post is no longer active and is closed to new replies. Need help? Start a new post to ask your question.
    Best answer by Gaurav-Behl

    Try this--

    import javax.annotation.PostConstruct;

    import org.apache.sling.api.SlingHttpServletRequest;

    import org.apache.sling.api.resource.Resource;

    import org.apache.sling.models.annotations.Model;

    import org.apache.sling.models.annotations.injectorspecific.Self;

    import com.day.cq.dam.api.Asset;

    @Model(adaptables = SlingHttpServletRequest.class)   // map it to resource as applicable

    public class HelloWorldModel {

    @Self

    protected SlingHttpServletRequest request;

    @PostConstruct

    protected void init() {

    Resource resource = request.getResourceResolver()

    .getResource("/content/dam/we-retail/en/activities/biking/cycling_1.jpg");

    Asset asset = resource.adaptTo(Asset.class);

    String width = asset.getMetadataValue("tiff:ImageWidth");

    String height = asset.getMetadataValue("tiff:ImageLength");

    // do something

    }

    }

    3 replies

    Hemant_arora
    Hemant_arora
    Level 8
    February 4, 2019

    https://helpx.adobe.com/experience-manager/6-3/sites/developing/using/reference-materials/javadoc/com/adobe/granite/asset/api/Asset.html

    Asset is created by AssetManager and can be retrieved either via AssetManager or by adapting a asset Resource to an Asset.

         eg: // to create an asset AssetManager assetManager = resolver.adaptTo(AssetManager.class); Asset newAsset = assetManager.createAsset("/path/to/asset/document.pdf");  // to get an existing asset Asset asset = assetManager.getAsset("/path/to/asset/document.pdf");  // to get asset by adapting Asset asset = resource.adaptTo(Asset.class);

    Asset properties can be retrieved or set by adapting it to a ValueMap.

         eg: // to get Asset properties value map ValueMap map = asset.adaptTo(ValueMap.class);

    You can also use DAMUtil to get asset properties

    String assetPath = DamUtil.getAssetFromMetaRes(resource.getPath());

      Karl515
      Karl515Author
      Level 5
      February 5, 2019

      Here's my updated code

      @Model(adaptables = SlingHttpServletRequest.class)

      public class SlingModel {

          @ValueMapValue

          public String fileReference;

           @Self

          protected SlingHttpServletRequest request;

          

          @PostConstruct

          protected void init() {

                final Resource assetResource = request.getResourceResolver().getResource(fileReference);

                Asset asset = assetResource.adaptTo(Asset.class);

                AssetMetadata assetMetadata = asset.getAssetMetadata();

                ValueMap properties = asset.adaptTo(ValueMap.class);

                //output ValueMap.

           }

      }

      But how can I get the Metadata? this is what I'm currently getting

      com.adobe.granite.asset.core.impl.AssetImpl$1@74126052

      I want to get width and height. or if possible all JCR metadata. thanks!

        Gaurav-Behl
        Gaurav-BehlAccepted solution
        Level 10
        February 5, 2019

        Try this--

        import javax.annotation.PostConstruct;

        import org.apache.sling.api.SlingHttpServletRequest;

        import org.apache.sling.api.resource.Resource;

        import org.apache.sling.models.annotations.Model;

        import org.apache.sling.models.annotations.injectorspecific.Self;

        import com.day.cq.dam.api.Asset;

        @Model(adaptables = SlingHttpServletRequest.class)   // map it to resource as applicable

        public class HelloWorldModel {

        @Self

        protected SlingHttpServletRequest request;

        @PostConstruct

        protected void init() {

        Resource resource = request.getResourceResolver()

        .getResource("/content/dam/we-retail/en/activities/biking/cycling_1.jpg");

        Asset asset = resource.adaptTo(Asset.class);

        String width = asset.getMetadataValue("tiff:ImageWidth");

        String height = asset.getMetadataValue("tiff:ImageLength");

        // do something

        }

        }

          israel_sanchez
          israel_sanchez
          Level 3
          July 7, 2021
          This code works perfectly, thank you.
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