/// <summary>
/// (non-Javadoc)
/// @see org.apache.lucene.xmlparser.QueryObjectBuilder#process(org.w3c.dom.Element)
/// </summary>
/// <param name="e"></param>
/// <returns></returns>
public virtual Query GetQuery(XmlElement e)
{
BooleanQuery bq = new BooleanQuery(DOMUtils.GetAttribute(e, "disableCoord", false));
bq.MinimumNumberShouldMatch = DOMUtils.GetAttribute(e, "minimumNumberShouldMatch", 0);
bq.Boost = DOMUtils.GetAttribute(e, "boost", 1.0f);
XmlNodeList nl = e.ChildNodes;
for (int i = 0; i < nl.Count; i++)
{
XmlNode node = nl.Item(i);
if (node.LocalName.Equals("Clause", StringComparison.Ordinal))
{
XmlElement clauseElem = (XmlElement)node;
Occur occurs = GetOccursValue(clauseElem);
XmlElement clauseQuery = DOMUtils.GetFirstChildOrFail(clauseElem);
Query q = factory.GetQuery(clauseQuery);
bq.Add(new BooleanClause(q, occurs));
}
}
return(bq);
}
public virtual Query GetQuery(XmlElement e)
{
XmlElement filterElem = DOMUtils.GetFirstChildOrFail(e);
Query q = new ConstantScoreQuery(filterFactory.GetFilter(filterElem));
q.Boost = DOMUtils.GetAttribute(e, "boost", 1.0f);
return(q);
}
public virtual Filter GetFilter(XmlElement e)
{
UninterruptableMonitor.Enter(this);
try
{
XmlElement childElement = DOMUtils.GetFirstChildOrFail(e);
if (filterCache is null)
{
filterCache = new LurchTable <object, Filter>(LurchTableOrder.Access, cacheSize);
}
// Test to see if child Element is a query or filter that needs to be
// cached
IQueryBuilder qb = queryFactory.GetQueryBuilder(childElement.Name);
object cacheKey = null;
Query q = null;
Filter f = null;
if (qb != null)
{
q = qb.GetQuery(childElement);
cacheKey = q;
}
else
{
f = filterFactory.GetFilter(childElement);
cacheKey = f;
}
if (filterCache.TryGetValue(cacheKey, out Filter cachedFilter) && cachedFilter != null)
{
return(cachedFilter); // cache hit
}
//cache miss
if (qb != null)
{
cachedFilter = new QueryWrapperFilter(q);
}
else
{
cachedFilter = new CachingWrapperFilter(f);
}
filterCache[cacheKey] = cachedFilter;
return(cachedFilter);
}
finally
{
UninterruptableMonitor.Exit(this);
}
}
/// <summary>
/// (non-Javadoc)
/// @see org.apache.lucene.xmlparser.QueryObjectBuilder#process(org.w3c.dom.Element)
/// </summary>
public virtual Query GetQuery(XmlElement e)
{
XmlElement filterElement = DOMUtils.GetChildByTagOrFail(e, "Filter");
filterElement = DOMUtils.GetFirstChildOrFail(filterElement);
Filter f = filterFactory.GetFilter(filterElement);
XmlElement queryElement = DOMUtils.GetChildByTagOrFail(e, "Query");
queryElement = DOMUtils.GetFirstChildOrFail(queryElement);
Query q = queryFactory.GetQuery(queryElement);
FilteredQuery fq = new FilteredQuery(q, f);
fq.Boost = DOMUtils.GetAttribute(e, "boost", 1.0f);
return(fq);
}
public override SpanQuery GetSpanQuery(XmlElement e)
{
XmlElement includeElem = DOMUtils.GetChildByTagOrFail(e, "Include");
includeElem = DOMUtils.GetFirstChildOrFail(includeElem);
XmlElement excludeElem = DOMUtils.GetChildByTagOrFail(e, "Exclude");
excludeElem = DOMUtils.GetFirstChildOrFail(excludeElem);
SpanQuery include = factory.GetSpanQuery(includeElem);
SpanQuery exclude = factory.GetSpanQuery(excludeElem);
SpanNotQuery snq = new SpanNotQuery(include, exclude);
snq.Boost = DOMUtils.GetAttribute(e, "boost", 1.0f);
return(snq);
}
public virtual Query GetQuery(XmlElement e)
{
XmlElement mainQueryElem = DOMUtils.GetChildByTagOrFail(e, "Query");
mainQueryElem = DOMUtils.GetFirstChildOrFail(mainQueryElem);
Query mainQuery = factory.GetQuery(mainQueryElem);
XmlElement boostQueryElem = DOMUtils.GetChildByTagOrFail(e, "BoostQuery");
float boost = DOMUtils.GetAttribute(boostQueryElem, "boost", DEFAULT_BOOST);
boostQueryElem = DOMUtils.GetFirstChildOrFail(boostQueryElem);
Query boostQuery = factory.GetQuery(boostQueryElem);
BoostingQuery bq = new BoostingQuery(mainQuery, boostQuery, boost);
bq.Boost = DOMUtils.GetAttribute(e, "boost", 1.0f);
return(bq);
}
public virtual Filter GetFilter(XmlElement e)
{
BooleanFilter bf = new BooleanFilter();
XmlNodeList nl = e.ChildNodes;
for (int i = 0; i < nl.Count; i++)
{
XmlNode node = nl.Item(i);
if (node.LocalName.Equals("Clause", StringComparison.Ordinal))
{
XmlElement clauseElem = (XmlElement)node;
Occur occurs = BooleanQueryBuilder.GetOccursValue(clauseElem);
XmlElement clauseFilter = DOMUtils.GetFirstChildOrFail(clauseElem);
Filter f = factory.GetFilter(clauseFilter);
bf.Add(new FilterClause(f, occurs));
}
}
return(bf);
}
