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/*
 * Copyright (C) 2014 Dell, Inc.
 * 
 * Licensed 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 com.dell.doradus.search.builder;

import com.dell.doradus.common.FieldDefinition;
import com.dell.doradus.common.Utils;
import com.dell.doradus.search.FilteredIterable;
import com.dell.doradus.search.QueryExecutor;
import com.dell.doradus.search.filter.Filter;
import com.dell.doradus.search.filter.FilterLinkCount;
import com.dell.doradus.search.query.LinkCountQuery;
import com.dell.doradus.search.query.Query;

public class BuilderLinkCount extends SearchBuilder {
    
	@Override public FilteredIterable search(Query query) {
		return null;
	}
	
	@Override public Filter filter(Query query) {
		LinkCountQuery qu = (LinkCountQuery)query;
		FieldDefinition fieldDef = m_table.getFieldDef(qu.link);
		Utils.require(fieldDef.isLinkField(), qu.link + " is not a link field");
		Filter inner = null;
		if(qu.filter != null) {
			QueryExecutor qe = new QueryExecutor(fieldDef.getTableDef().getLinkExtentTableDef(fieldDef));
			inner = qe.filter(qu.filter);
		}
        FilterLinkCount condition = new FilterLinkCount(qu.link, qu.count, inner);
        return condition;
	}
   
}