|| || || || || || || ||

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XmlAnnotationSet.h

Go to the documentation of this file.

#ifndef Impala_Core_IDash_XmlAnnotationSet_h
#define Impala_Core_IDash_XmlAnnotationSet_h

#include "Util/XmlDoc.h"
#include "Persistency/XmlFileReader.h"
#include "Link/Curl/CurlFuncs.h"
#include "Core/IDash/Href.h"

namespace Impala
{
namespace Core
{
namespace IDash
{


class XmlAnnotationSet : public Util::XmlDoc
{
public:

    XmlAnnotationSet(String href) : mHref(href)
    {
        Link::Curl::Memory mem = Link::Curl::Get(href);
        Util::IOBuffer ioBuf(mem.size, (unsigned char*) mem.data);
        ReadData(href, &ioBuf);
    }

    virtual
    ~XmlAnnotationSet()
    {
    }

    bool
    Valid() const
    {
        return mValid;
    }

    int
    GetNrMoments() const
    {
        return mMoments.size();
    }

    String
    GetMoment(int i) const
    {
        return mMoments[i];
    }

    std::vector<String>
    GetMoments() const
    {
        return mMoments;
    }

private:

    /* sample file:

<?xml version="1.0" encoding="utf-8"?>
<moments xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.i-dash.eu/MetaData http://www.i-dash.eu/Schemas/MetaData/MetaData.xsd" xmlns="http://www.i-dash.eu/MetaData">
  <moment xlink:href="http://146.50.22.23:7878/services/vds/cases/112/videos/114/shots/91" entityType="Moment" />
  <moment xlink:href="http://146.50.22.23:7878/services/vds/cases/112/videos/115/shots/7" entityType="Moment" />
  <moment xlink:href="http://146.50.22.23:7878/services/vds/cases/112/videos/116/shots/0" entityType="Moment" />
  <moment xlink:href="http://146.50.22.23:7878/services/vds/cases/112/videos/117/shots/10" entityType="Moment" />
  <moment xlink:href="http://146.50.22.23:7878/services/vds/cases/519/videos/524/shots/13" entityType="Moment" />
  <moment xlink:href="http://146.50.22.23:7878/services/vds/cases/519/videos/526/shots/25" entityType="Moment" />
</moments>

    */

    void
    ReadData(String docName, Util::IOBuffer* ioBuf)
    {
        mValid = false;
        Persistency::XmlFileReader reader;
        DOMDocument* doc = reader.Read(docName, ioBuf);
        if (!doc)
            return;
        DOMNode* moments = GetChildNode(doc, "moments", true);

        std::vector<DOMNode*> momNodes = GetChildNodes(moments, "moment");
        ILOG_DEBUG("nr moments = " << momNodes.size());
        for (int i=0 ; i<momNodes.size() ; i++)
        {
            String href = GetAttributeValue(momNodes[i], "xlink:href");
            if (!href.empty())
                mMoments.push_back(href);
        }
        mValid = true;
    }

    // data

    Href                mHref;
    std::vector<String> mMoments;
    bool                mValid;

    ILOG_VAR_DEC;

};

ILOG_VAR_INIT(XmlAnnotationSet, Impala.Core.IDash);

} // namespace IDash
} // namespace Core
} // namespace Impala

#endif

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