| using Lucene.Net.Diagnostics; |
| using Lucene.Net.Index; |
| using Lucene.Net.Search; |
| using Lucene.Net.Spatial.Prefix.Tree; |
| using Lucene.Net.Util; |
| using Spatial4n.Core.Shapes; |
| using System; |
| using System.Diagnostics; |
| |
| namespace Lucene.Net.Spatial.Prefix |
| { |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /// <summary> |
| /// Base class for Lucene Filters on SpatialPrefixTree fields. |
| /// @lucene.experimental |
| /// </summary> |
| public abstract class AbstractPrefixTreeFilter : Filter |
| { |
| protected internal readonly IShape m_queryShape; |
| protected internal readonly string m_fieldName; |
| protected internal readonly SpatialPrefixTree m_grid;//not in equals/hashCode since it's implied for a specific field |
| protected internal readonly int m_detailLevel; |
| |
| protected AbstractPrefixTreeFilter(IShape queryShape, string fieldName, SpatialPrefixTree grid, int detailLevel) // LUCENENET: CA1012: Abstract types should not have constructors (marked protected) |
| { |
| this.m_queryShape = queryShape; |
| this.m_fieldName = fieldName; |
| this.m_grid = grid; |
| this.m_detailLevel = detailLevel; |
| } |
| |
| public override bool Equals(object o) |
| { |
| if (this == o) |
| { |
| return true; |
| } |
| if (!GetType().Equals(o.GetType())) |
| { |
| return false; |
| } |
| var that = (AbstractPrefixTreeFilter)o; |
| if (m_detailLevel != that.m_detailLevel) |
| { |
| return false; |
| } |
| if (!m_fieldName.Equals(that.m_fieldName, StringComparison.Ordinal)) |
| { |
| return false; |
| } |
| if (!m_queryShape.Equals(that.m_queryShape)) |
| { |
| return false; |
| } |
| return true; |
| } |
| |
| public override int GetHashCode() |
| { |
| int result = m_queryShape.GetHashCode(); |
| result = 31 * result + m_fieldName.GetHashCode(); |
| result = 31 * result + m_detailLevel; |
| return result; |
| } |
| |
| #region Nested type: BaseTermsEnumTraverser |
| |
| /// <summary> |
| /// Holds transient state and docid collecting utility methods as part of |
| /// traversing a <see cref="TermsEnum">Lucene.Net.Index.TermsEnum</see>. |
| /// </summary> |
| public abstract class BaseTermsEnumTraverser |
| { |
| protected readonly AbstractPrefixTreeFilter m_outerInstance; |
| protected readonly AtomicReaderContext m_context; |
| protected IBits m_acceptDocs; |
| protected readonly int m_maxDoc; |
| |
| protected TermsEnum m_termsEnum;//remember to check for null in getDocIdSet |
| protected DocsEnum m_docsEnum; |
| |
| protected BaseTermsEnumTraverser(AbstractPrefixTreeFilter outerInstance, AtomicReaderContext context, IBits acceptDocs) // LUCENENET: CA1012: Abstract types should not have constructors (marked protected) |
| { |
| this.m_outerInstance = outerInstance; |
| |
| this.m_context = context; |
| AtomicReader reader = context.AtomicReader; |
| this.m_acceptDocs = acceptDocs; |
| m_maxDoc = reader.MaxDoc; |
| Terms terms = reader.GetTerms(outerInstance.m_fieldName); |
| if (terms != null) |
| { |
| m_termsEnum = terms.GetEnumerator(); |
| } |
| } |
| |
| protected virtual void CollectDocs(FixedBitSet bitSet) |
| { |
| //WARN: keep this specialization in sync |
| if (Debugging.AssertsEnabled) Debugging.Assert(m_termsEnum != null); |
| m_docsEnum = m_termsEnum.Docs(m_acceptDocs, m_docsEnum, DocsFlags.NONE); |
| int docid; |
| while ((docid = m_docsEnum.NextDoc()) != DocIdSetIterator.NO_MORE_DOCS) |
| { |
| bitSet.Set(docid); |
| } |
| } |
| } |
| |
| #endregion |
| |
| /* Eventually uncomment when needed. |
| |
| protected void collectDocs(Collector collector) throws IOException { |
| //WARN: keep this specialization in sync |
| assert termsEnum != null; |
| docsEnum = termsEnum.docs(acceptDocs, docsEnum, DocsFlags.NONE); |
| int docid; |
| while ((docid = docsEnum.nextDoc()) != DocIdSetIterator.NO_MORE_DOCS) { |
| collector.collect(docid); |
| } |
| } |
| |
| public abstract class Collector { |
| abstract void collect(int docid) throws IOException; |
| } |
| */ |
| } |
| } |