有没有办法以编程方式设置资产的元数据? [英] Is there a way to programmatically set metadata of an asset?

问题描述

我在CQ5中添加了名称为./dc:sample的自定义元数据.有没有办法以编程方式为资产设置此元数据?

I added a custom metadata in CQ5 with name ./dc:sample. Is there a way I can programmatically set this metadata for an asset?

我编写了一个工作流，该工作流将拦截上载的资产，并将其替换为从第三方服务发送的inputstream.我通过在工作流程中执行以下操作来完成此任务.

I've written a workflow that intercepts the uploaded assets and replaces them with inputstream sent from the third party service. I accomplish this by doing the following in my workflow.

Rendition rendition = resource.adaptTo(Rendition.class);
Asset asset = rendition.getAsset();
InputStream newInputStream = myService.sendFile(is);
asset.addRendition(rendition.getName(),newInputStream,asset.getMimeType());

问题

这时，我想将./dc:sample元数据设置为类似测试检查"的字符串.这可能吗?

At this time I would like to set the ./dc:sample metadata to a string like "test checking". Is this possible to do?

推荐答案

您可以将Asset修改为Resource，获取其jcr:content/metadata孙子，然后将其修改为ModifiableValueMap:

You can adapt the Asset to Resource, get its jcr:content/metadata grandchild and adapt it to ModifiableValueMap:

Resource metadataRes = asset.adaptTo(Resource.class).getChild("jcr:content/metadata");
ModifiableValueMap map = metadataRes.adaptTo(ModifiableValueMap.class);
map.put("dc:sample", "test checking");
resourceResolver.commit();

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