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lSCS query using external component

scorpian

Hi,
I am new to LSCS, i want to create a external component which will do the lscs query and return data as xml to content xml section in the component. I have few clarifications.
1. when i query using lscs it returns the external attributes and not the content of the dcr. So do i need to get the path of the dcr and parse it.Then return it back to the content xml section?
2.Will the same query on the runtime environment gives the same result as it gives on authoring which consists of metadata and not the content.If only metadata is returned , then how we need to parse the dcr for runtime environment and return it back to component xml.

I have gone through the documentation but it is of not much help.
Please provide any sample code for lscs querying using external component for reference.
TIA

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Comments

Rick Poulin

1. So do i need to get the path of the dcr and parse it?
Yes, that's your best bet as far as performance goes. But there are ways to get the content directly, as described in the LSCS Tech Ref PDF.

2.Will the same query on the runtime environment gives the same result as it gives on authoring which consists of metadata and not the content.
Yes, they work (largely) the same way, except that [afaik] content retrieval doesn't work in 7.3.2+ authoring side.. which is another argument in favour of grabbing the path from LSCS and then getting the content from disk directly.

gits

This code may help you:


try {
   content = context.getLiveSiteDal().readXmlFile(lscsDocument.getPath()).asXML();
  } catch (Exception e) {
   try {
    content = StreamUtil.read(lscsDocument.getContentStream());
   } catch (Exception ee) {
    //ignored.
   }
  } finally {
   if (content != null && !content.equals("")) {
    Element contentXmlElement = xmlElement.addElement("content");
    Document cDoc = Dom4jUtils.newDocument(content);
    contentXmlElement.add(cDoc.getRootElement());
   }
  }

Rick Poulin

This code may help you:

This works but it's very strange.. Really all you need is this:


Document doc = ExternalUtils.readXmlFile(lscsDocument.getPath());
// and if for whatever reason you can't trust that LSDS has your files
if (doc == null) {
  doc = Dom4jUtils.newDocument(lscsDocument.getContentStream());
}