Java Count.getCount方法代码示例

import org.apache.solr.client.solrj.response.FacetField.Count; //导入方法依赖的package包/类
/**
 * Creates a list with all available values for the given field (minus any blacklisted values).
 * 
 * @return
 * @throws SolrServerException
 * @should return all values
 */
public List<String> getSets(String field) throws SolrServerException {
    List<String> ret = new ArrayList<>();

    SolrQuery query = new SolrQuery();
    query.setQuery(field + ":* " + DataManager.getInstance().getConfiguration().getCollectionBlacklistFilterSuffix());
    query.setStart(0);
    query.setRows(0);
    query.addFacetField(field);
    logger.trace("Set query: {}", query.getQuery());
    QueryResponse resp = server.query(query);

    FacetField facetField = resp.getFacetField(field);
    if (facetField != null) {
        for (Count count : facetField.getValues()) {
            if (count.getCount() == 0) {
                continue;
            }
            ret.add(count.getName());
        }
    }

    Collections.sort(ret);
    logger.trace("{} terms found for {}", ret.size(), field);
    return ret;
}
 

import org.apache.solr.client.solrj.response.FacetField.Count; //导入方法依赖的package包/类
/**
 *
 * @param count count (name + count) to check
 * @param converter optional converter to apply to value before comparison
 * @return true IFF the {@link Count#getCount() } is more than {@link #getMinimalOccurence()
 * } {@link Count#getName() } contains {@link #getName() } (case
 * insensitive)
 */
@Override
public boolean matches(Count count, IConverter<String> converter) {
    if (count.getCount() >= minimalOccurence) {
        if (namePattern == null) {
            // no pattern to compare to, always matches
            return true;
        } else {
            // convert value if converter is provided
            final String value;
            if (converter == null) {
                value = count.getName();
            } else {
                value = converter.convertToString(count.getName(), null);
            }
            return namePattern.matcher(value).find();
        }
    } else {
        // too few occurences, no match
        return false;
    }
}
 

import org.apache.solr.client.solrj.response.FacetField.Count; //导入方法依赖的package包/类
private Map<String, FacetList> extractAvailableFilters(QueryResponse response) {
	Map<String, FacetList> facets = new HashMap<String, FacetList>();

	if (response.getFacetFields() != null) {
		for (FacetField ff : response.getFacetFields()) {
			String field = ff.getName();
			List<Facet> facetList = new ArrayList<Facet>(ff.getValueCount());

			for (Count c : ff.getValues()) {
				if (c.getCount() > 0) {
					Facet f = new Facet(ff.getName(), c.getName(), c.getCount());
					facetList.add(f);
				}
			}

			facets.put(ff.getName(), new FacetList(field, getFacetLabel(field), facetList));
		}
	}

	return facets;
}
 

import org.apache.solr.client.solrj.response.FacetField.Count; //导入方法依赖的package包/类
public static List<String> getReviewingUsers(ReviewService reviewService) {
	ModifiableSolrParams solrParams = new ModifiableSolrParams();
	QueryResponse response = null;

	String queryString = "*:*";
	solrParams.set("q", queryString);
	solrParams.set("facet", "true");
	solrParams.set("facet.field", "user");
	solrParams.set("facet.limit", -1);
	solrParams.set("facet.mincount", 1);
	try {
		response = reviewService.getSolrServer().query(solrParams);
	} catch (SolrServerException e) {
		e.printStackTrace();
	}

	List<FacetField> facetFields = response.getFacetFields();
	// get the first and only facet field -> users
	FacetField userFacet = facetFields.get(0);
	List<String> users = new ArrayList<String>();

	for(Count c : userFacet.getValues()) {
		// only cold start users
		if (c.getCount() < 11) {
			users.add(c.getName());
		}
	}

	return users;
}
 

import org.apache.solr.client.solrj.response.FacetField.Count; //导入方法依赖的package包/类
/**
 * Step 2 in Collaborative Filtering using SOLR.
 * <br/>
 * Finds docs which are "liked" by the similar users in Step 1
 * @param contentFilter 
 */
public static String createQueryToFindProdLikedBySimilarUsers(
		List<Count> userOccurences, 
		String currentUser, 
		ContentFilter contentFilter,
		String usersFieldName,
		int maxUserOccurence,
		double weightDividor) {
	StringBuilder queryBuilder = new StringBuilder();

	queryBuilder.append(usersFieldName + ":(");
	
	if (weightDividor <= 0.0) {
		queryBuilder.append("\"\")");
		return queryBuilder.toString();
	}
	//  max users
	int userOccurenceCount = 0;
	long maxUserCount = 0;
	long userCountSum = 0;
	
	
	for (Count userOccurence : userOccurences) {
		if ( ! userOccurence.getName().equals(currentUser)) {
			if (userOccurenceCount >= maxUserOccurence) {
				break;
			}
			queryBuilder.append("\"" + userOccurence.getName() + "\"^" + (userOccurence.getCount() / weightDividor ) + " OR ");
			if (userOccurence.getCount() > maxUserCount) {
				maxUserCount = userOccurence.getCount();
			}
			userCountSum += userOccurence.getCount();
			userOccurenceCount++;
		}
	}
	
	if (contentFilter != null && contentFilter.getFriendsEvaluationMethod() != FriendsEvaluation.NOTHING) {
		if (contentFilter.getCustomer() != null && contentFilter.getCustomer().getFriendOf() != null) {
			for (String friend : contentFilter.getCustomer().getFriendOf()) {
				if (contentFilter.getFriendsEvaluationMethod() == FriendsEvaluation.HIGH) {
					queryBuilder.append("\"" + friend + "\"^" + maxUserCount  + " OR ");
				} else if (contentFilter.getFriendsEvaluationMethod() == FriendsEvaluation.AVERAGE) {
					queryBuilder.append("\"" + friend + "\"^" + userCountSum / userOccurenceCount + " OR ");
				} else if (contentFilter.getFriendsEvaluationMethod() == FriendsEvaluation.LOW) {
					queryBuilder.append("\"" + friend + "\"^" + 1 + " OR ");
				}
			}
		}
	}
	
	
	if (queryBuilder.length() > (usersFieldName + ":(").length()){
		queryBuilder.replace(queryBuilder.length() - 3, queryBuilder.length(), "");
	} else {
		queryBuilder.append("\"\"");
	}
	
	queryBuilder.append(")");
	return queryBuilder.toString();
}
 

import org.apache.solr.client.solrj.response.FacetField.Count; //导入方法依赖的package包/类
/**
 * Step 2 in Collaborative Filtering using SOLR.
 * <br/>
 * Finds docs which are "liked" by the similar users in Step 1
 * @param contentFilter 
 */
public static String createQueryToFindProdLikedBySimilarUsers(
		final List<Count> userOccurences, 
		final String currentUser, 
		ContentFilter contentFilter,
		String usersFieldName,
		int maxUserOccurence,
		final double weightDividor) {
	StringBuilder queryBuilder = new StringBuilder();

	queryBuilder.append(usersFieldName + ":(");
	
	if (weightDividor <= 0.0) {
		queryBuilder.append("\"\")");
		return queryBuilder.toString();
	}
	//  max users
	int userOccurenceCount = 0;
	long maxUserCount = 0;
	long userCountSum = 0;
	
	Thread t = new Thread() {
		@Override public void run() {
			UserSimilarityTracker.getInstance().writeToFile("soc_market_rev", currentUser, userOccurences, weightDividor);
		}
	};
	t.start();
	
	for (Count userOccurence : userOccurences) {
		if ( ! userOccurence.getName().equals(currentUser)) {
			if (userOccurenceCount >= maxUserOccurence) {
				break;
			}
			queryBuilder.append("\"" + userOccurence.getName() + "\"^" + (userOccurence.getCount() / weightDividor ) + " OR ");
			if (userOccurence.getCount() > maxUserCount) {
				maxUserCount = userOccurence.getCount();
			}
			userCountSum += userOccurence.getCount();
			userOccurenceCount++;
		}
	}
	
	if (contentFilter != null && contentFilter.getFriendsEvaluationMethod() != FriendsEvaluation.NOTHING) {
		if (contentFilter.getCustomer() != null && contentFilter.getCustomer().getFriendOf() != null) {
			for (String friend : contentFilter.getCustomer().getFriendOf()) {
				if (contentFilter.getFriendsEvaluationMethod() == FriendsEvaluation.HIGH) {
					queryBuilder.append("\"" + friend + "\"^" + maxUserCount  + " OR ");
				} else if (contentFilter.getFriendsEvaluationMethod() == FriendsEvaluation.AVERAGE) {
					queryBuilder.append("\"" + friend + "\"^" + userCountSum / userOccurenceCount + " OR ");
				} else if (contentFilter.getFriendsEvaluationMethod() == FriendsEvaluation.LOW) {
					queryBuilder.append("\"" + friend + "\"^" + 1 + " OR ");
				}
			}
		}
	}
	
	
	if (queryBuilder.length() > (usersFieldName + ":(").length()){
		queryBuilder.replace(queryBuilder.length() - 3, queryBuilder.length(), "");
	} else {
		queryBuilder.append("\"\"");
	}
	
	queryBuilder.append(")");
	return queryBuilder.toString();
}