geode-lucene/src/main/java/org/apache/geode/cache/lucene/internal/LuceneQueryFactoryImpl.java

/*
 * 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;

import org.apache.geode.cache.Cache;
import org.apache.geode.cache.Region;
import org.apache.geode.cache.lucene.LuceneQuery;
import org.apache.geode.cache.lucene.LuceneQueryFactory;
import org.apache.geode.cache.lucene.LuceneQueryProvider;

public class LuceneQueryFactoryImpl implements LuceneQueryFactory {
  private int limit = DEFAULT_LIMIT;
  private int pageSize = DEFAULT_PAGESIZE;
  private Cache cache;

  LuceneQueryFactoryImpl(Cache cache) {
    this.cache = cache;
  }

  @Override
  public LuceneQueryFactory setPageSize(int pageSize) {
    if (pageSize < 0) {
      throw new IllegalArgumentException("Page size is negative: " + pageSize);
    }

    this.pageSize = pageSize;
    return this;
  }

  @Override
  public LuceneQueryFactory setLimit(int limit) {
    if (limit <= 0) {
      throw new IllegalArgumentException("Limit is <= 0: " + limit);
    }

    this.limit = limit;
    return this;
  }

  @Override
  public <K, V> LuceneQuery<K, V> create(String indexName, String regionName, String queryString,
      String defaultField) {
    return create(indexName, regionName, new StringQueryProvider(queryString, defaultField));
  }

  @Override
  public <K, V> LuceneQuery<K, V> create(String indexName, String regionName,
      LuceneQueryProvider provider) {
    Region<K, V> region = cache.getRegion(regionName);
    if (region == null) {
      throw new IllegalArgumentException("Region not found: " + regionName);
    }
    LuceneQueryImpl<K, V> luceneQuery =
        new LuceneQueryImpl<K, V>(indexName, region, provider, limit, pageSize);
    return luceneQuery;
  }


}