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Signed-off-by: Vamsi Manohar <[email protected]>
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20 changes: 20 additions & 0 deletions
20
server/src/main/java/org/opensearch/search/externalengine/QueryEngine.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
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| package org.opensearch.search.externalengine; | ||
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| import org.opensearch.action.search.SearchRequest; | ||
| import org.opensearch.action.search.SearchResponse; | ||
| import org.opensearch.core.action.ActionListener; | ||
| import org.opensearch.core.common.io.stream.NamedWriteable; | ||
| import org.opensearch.core.xcontent.ToXContentObject; | ||
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| public abstract class QueryEngine implements NamedWriteable, ToXContentObject { | ||
| public abstract void executeQuery(SearchRequest searchRequest, | ||
| ActionListener<SearchResponse> actionListener); | ||
| } |
25 changes: 25 additions & 0 deletions
25
server/src/main/java/org/opensearch/search/externalengine/QueryEngineParser.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
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| package org.opensearch.search.externalengine; | ||
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| import java.io.IOException; | ||
| import org.opensearch.core.xcontent.XContentParser; | ||
| import org.opensearch.index.query.QueryBuilder; | ||
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| @FunctionalInterface | ||
| public interface QueryEngineParser<T extends QueryEngine> { | ||
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| /** | ||
| * Creates a new {@link QueryBuilder} from the query held by the | ||
| * {@link XContentParser}. The state on the parser contained in this context | ||
| * will be changed as a side effect of this method call | ||
| */ | ||
| T fromXContent(XContentParser parser) throws IOException; | ||
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| } |
84 changes: 84 additions & 0 deletions
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server/src/main/java/org/opensearch/search/externalengine/SQLQueryEngine.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,84 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
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| package org.opensearch.search.externalengine; | ||
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| import static org.opensearch.repositories.fs.ReloadableFsRepository.randomIntBetween; | ||
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| import java.io.IOException; | ||
| import java.util.concurrent.ThreadLocalRandom; | ||
| import org.opensearch.action.search.SearchRequest; | ||
| import org.opensearch.action.search.SearchResponse; | ||
| import org.opensearch.action.search.ShardSearchFailure; | ||
| import org.opensearch.core.action.ActionListener; | ||
| import org.opensearch.core.common.io.stream.StreamInput; | ||
| import org.opensearch.core.common.io.stream.StreamOutput; | ||
| import org.opensearch.core.xcontent.XContentBuilder; | ||
| import org.opensearch.core.xcontent.XContentParser; | ||
| import org.opensearch.search.internal.InternalSearchResponse; | ||
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| public class SQLQueryEngine extends QueryEngine { | ||
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| public static final String NAME = "sql"; | ||
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| public SQLQueryEngine() { | ||
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| } | ||
| public SQLQueryEngine(StreamInput in) { | ||
| } | ||
| @Override | ||
| public String getWriteableName() { | ||
| return "sql"; | ||
| } | ||
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| } | ||
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| @Override | ||
| public void executeQuery(SearchRequest searchRequest, | ||
| ActionListener<SearchResponse> actionListener) { | ||
| // Creating a minimal response is OK, because SearchResponse self | ||
| // is tested elsewhere. | ||
| long tookInMillis = ThreadLocalRandom.current().nextLong(0L, Long.MAX_VALUE); | ||
| int totalShards = randomIntBetween(1, Integer.MAX_VALUE); | ||
| int successfulShards = randomIntBetween(0, totalShards); | ||
| int skippedShards = totalShards - successfulShards; | ||
| InternalSearchResponse internalSearchResponse = InternalSearchResponse.empty(); | ||
| int totalClusters = randomIntBetween(0, 10); | ||
| int successfulClusters = randomIntBetween(0, totalClusters); | ||
| int skippedClusters = totalClusters - successfulClusters; | ||
| SearchResponse.Clusters clusters = new SearchResponse.Clusters(totalClusters, successfulClusters, skippedClusters); | ||
| SearchResponse searchResponse = new SearchResponse( | ||
| internalSearchResponse, | ||
| null, | ||
| totalShards, | ||
| successfulShards, | ||
| skippedShards, | ||
| tookInMillis, | ||
| ShardSearchFailure.EMPTY_ARRAY, | ||
| clusters | ||
| ); | ||
| actionListener.onResponse(searchResponse); | ||
| } | ||
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| @Override | ||
| public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException { | ||
| return null; | ||
| } | ||
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| public static QueryEngine fromXContent(XContentParser parser) throws IOException { | ||
| XContentParser.Token token; | ||
| while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) { | ||
| token = parser.nextToken(); | ||
| } | ||
| return new SQLQueryEngine(); | ||
| } | ||
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| } |