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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.prelude.searcher;
import com.yahoo.search.result.ErrorMessage;
import com.yahoo.search.Query;
import com.yahoo.search.Result;
import com.yahoo.search.Searcher;
import com.yahoo.search.searchchain.Execution;
/**
* Ensures hits is 1000 or less and offset is 1000 or less.
*
* @author <a href="mailto:steinar@yahoo-inc.com">Steinar Knutsen</a>
*/
public class QueryValidatingSearcher extends Searcher {
public Result search(Query query, Execution execution) {
if (query.getHits() > 1000) {
Result result = new Result(query);
ErrorMessage error
= ErrorMessage.createInvalidQueryParameter("Too many hits (more than 1000) requested.");
result.hits().addError(error);
return result;
}
if (query.getOffset() > 1000) {
Result result = new Result(query);
ErrorMessage error
= ErrorMessage.createInvalidQueryParameter("Offset too high (above 1000).");
result.hits().addError(error);
return result;
}
return execution.search(query);
}
}
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