Example usage for org.apache.mahout.cf.taste.impl.model BooleanItemPreferenceArray BooleanItemPreferenceArray

Introduction

In this page you can find the example usage for org.apache.mahout.cf.taste.impl.model BooleanItemPreferenceArray BooleanItemPreferenceArray.

Prototype

private BooleanItemPreferenceArray(long[] ids, long id) 

Source Link

Document

This is a private copy constructor for clone().

Usage

From source file:org.zaizi.mahout.alfresco.datamodel.AlfrescoDataModelImpl.java

License:Open Source License

public PreferenceArray getPreferencesForItem(long itemID) throws TasteException {

    logger.trace("getPreferencesForItem {" + itemID + "}");

    List<GenericPreference> resultlist;

    NodeRef currentNodeRef;//  w  w  w .  j  a  va 2  s .  c  o m
    float rating;
    long userId;

    currentNodeRef = ZaiziAlfrescoServiceUtil.getNodeRefByEntryId(itemID);

    List<Rating> ratings = getRatings(currentNodeRef);

    resultlist = new ArrayList<GenericPreference>(ratings.size());

    for (Rating ratingRef : ratings) {
        userId = ZaiziAlfrescoServiceUtil
                .getNodeId(ZaiziAlfrescoServiceUtil.getPersonService().getPerson(ratingRef.getAppliedBy()));
        rating = ratingRef.getScore();
        resultlist.add(new GenericPreference(userId, itemID, rating));
    }

    if (logger.isTraceEnabled()) {
        logger.trace("Returining :" + resultlist);
    }

    if (mahoutRatingScheme.equals(org.zaizi.mahout.config.RatingScheme.BOOLEAN_PREF))
        return new BooleanItemPreferenceArray(resultlist, false);
    else
        return new GenericItemPreferenceArray(resultlist);

}

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