| /* |
| * 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. |
| */ |
| |
| package org.apache.geode.cache.lucene.internal.distributed; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.geode.DataSerializer; |
| import org.apache.geode.cache.lucene.LuceneQueryFactory; |
| import org.apache.geode.cache.lucene.LuceneQueryProvider; |
| import org.apache.geode.cache.lucene.internal.repository.IndexRepository; |
| import org.apache.geode.cache.lucene.internal.repository.IndexResultCollector; |
| import org.apache.geode.internal.serialization.DataSerializableFixedID; |
| import org.apache.geode.internal.serialization.DeserializationContext; |
| import org.apache.geode.internal.serialization.SerializationContext; |
| import org.apache.geode.internal.serialization.Version; |
| |
| /** |
| * Contains function arguments for text / lucene search |
| */ |
| public class LuceneFunctionContext<C extends IndexResultCollector> |
| implements DataSerializableFixedID { |
| private CollectorManager<C> manager; |
| private int limit; |
| private LuceneQueryProvider queryProvider; |
| private String indexName; |
| |
| public LuceneFunctionContext() { |
| this(null, null, null); |
| } |
| |
| public LuceneFunctionContext(LuceneQueryProvider provider, String indexName) { |
| this(provider, indexName, null); |
| } |
| |
| public LuceneFunctionContext(LuceneQueryProvider provider, String indexName, |
| CollectorManager<C> manager) { |
| this(provider, indexName, manager, LuceneQueryFactory.DEFAULT_LIMIT); |
| } |
| |
| public LuceneFunctionContext(LuceneQueryProvider provider, String indexName, |
| CollectorManager<C> manager, int limit) { |
| this.queryProvider = provider; |
| this.indexName = indexName; |
| this.manager = manager; |
| this.limit = limit; |
| } |
| |
| /** |
| * @return The maximum count of result objects to be produced by the function |
| */ |
| public int getLimit() { |
| return limit; |
| } |
| |
| /** |
| * Get the name of the index to query |
| */ |
| public String getIndexName() { |
| return indexName; |
| } |
| |
| /** |
| * On each member, search query is executed on one or more {@link IndexRepository}s. A |
| * {@link CollectorManager} could be provided to customize the way results from these repositories |
| * is collected and merged. |
| * |
| * @return {@link CollectorManager} instance to be used by function |
| */ |
| public CollectorManager<C> getCollectorManager() { |
| return this.manager; |
| } |
| |
| public LuceneQueryProvider getQueryProvider() { |
| return queryProvider; |
| } |
| |
| @Override |
| public int getDSFID() { |
| return LUCENE_FUNCTION_CONTEXT; |
| } |
| |
| @Override |
| public void toData(DataOutput out, |
| SerializationContext context) throws IOException { |
| out.writeInt(limit); |
| context.getSerializer().writeObject(queryProvider, out); |
| context.getSerializer().writeObject(manager, out); |
| DataSerializer.writeString(indexName, out); |
| } |
| |
| @Override |
| public void fromData(DataInput in, |
| DeserializationContext context) throws IOException, ClassNotFoundException { |
| limit = in.readInt(); |
| queryProvider = context.getDeserializer().readObject(in); |
| manager = context.getDeserializer().readObject(in); |
| this.indexName = DataSerializer.readString(in); |
| } |
| |
| @Override |
| public Version[] getSerializationVersions() { |
| return null; |
| } |
| } |