Basic query shape related classes

Signed-off-by: Siddhant Deshmukh <deshsid@amazon.com>

Author: deshsidd

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/aggregations/SumAggregationShape.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.aggregations;
+
+import org.opensearch.plugin.insights.rules.model.queryshape.misc.AggregationShape;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+
+public class SumAggregationShape extends AggregationShape {
+    String fieldName;
+    List<? extends AggregationShape> subAggregations;
+
+    @Override
+    public int hashCode() {
+        if (subAggregations != null) {
+            Collections.sort(subAggregations);
+        }
+        return Objects.hash(fieldName, subAggregations);
+    }
+}

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/aggregations/TermsAggregationShape.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.aggregations;
+
+import org.opensearch.plugin.insights.rules.model.queryshape.misc.AggregationShape;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+
+public class TermsAggregationShape extends AggregationShape {
+    String fieldName;
+    List<? extends AggregationShape> subAggregations;
+
+    @Override
+    public int hashCode() {
+        if (subAggregations != null) {
+            Collections.sort(subAggregations);
+        }
+        return Objects.hash(fieldName, subAggregations);
+    }
+}

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/core/AggregationFullShape.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.core;
+
+import org.opensearch.plugin.insights.rules.model.queryshape.misc.AggregationShape;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+
+class AggregationFullShape {
+    List<? extends AggregationShape> aggregations;
+
+    @Override
+    public int hashCode() {
+        Collections.sort(aggregations);
+        return Objects.hash(aggregations);
+    }
+}

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/core/PipelineAggregationShape.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.core;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+
+class PipelineAggregationShape {
+    List<String> pipelineAggregations;
+
+    @Override
+    public int hashCode() {
+        Collections.sort(pipelineAggregations);
+        return Objects.hash(pipelineAggregations);
+    }
+}

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/core/QueryBuilderFullShape.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.core;
+
+import org.opensearch.plugin.insights.rules.model.queryshape.misc.QueryBuilderShape;
+
+import java.util.Objects;
+
+class QueryBuilderFullShape {
+    QueryBuilderShape queryBuilderShape;
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(queryBuilderShape);
+    }
+}

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/core/QueryShape.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.core;
+
+import org.opensearch.index.query.QueryBuilder;
+import org.opensearch.search.builder.SearchSourceBuilder;
+
+import java.util.Objects;
+
+/**
+ * Representation of a Query Shape primarily used to group Top N queries by latency and resource usage.
+ * https://github.com/opensearch-project/OpenSearch/issues/13357
+ * @opensearch.internal
+ */
+public class QueryShape {
+    private QueryBuilderFullShape queryBuilderFullShape;
+    private SortShape sortShape;
+    private AggregationFullShape aggregationFullShape;
+    private PipelineAggregationShape pipelineAggregationShape;
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(queryBuilderFullShape, sortShape, aggregationFullShape, pipelineAggregationShape);
+    }
+
+    public void parse(SearchSourceBuilder source) {
+        // Parse the QueryBuilder to QueryShape
+        // Populate QueryBuilderFullShape, SortShape, AggregationFullShape, PipelineAggregationShape
+    }
+
+    public String getStringQueryShape() {
+        // Provide the String Query Shape
+        return null;
+    }
+}

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/core/SortShape.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.core;
+
+import org.opensearch.plugin.insights.rules.model.queryshape.misc.SortShapeField;
+
+import java.util.List;
+import java.util.Objects;
+
+class SortShape {
+    List<SortShapeField> sortShapeFields;
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(sortShapeFields);
+    }
+}

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/misc/AggregationShape.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.misc;
+
+public abstract class AggregationShape implements Comparable<AggregationShape> {
+    @Override
+    public int compareTo(AggregationShape other) {
+        return this.getClass().getName().compareTo(other.getClass().getName());
+    }
+}
+

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/misc/QueryBuilderShape.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.misc;
+
+public abstract class QueryBuilderShape implements Comparable<QueryBuilderShape> {
+
+    @Override
+    public int compareTo(QueryBuilderShape other) {
+        return this.getClass().getName().compareTo(other.getClass().getName());
+    }
+}

plugins/query-insights/src/main/java/org/opensearch/plugin/insights/rules/model/queryshape/misc/SortShapeField.java

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+/*
+ * 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.
+ */
+
+package org.opensearch.plugin.insights.rules.model.queryshape.misc;
+
+import java.util.Objects;
+
+public class SortShapeField {
+    String fieldName;
+    String sortOrder;
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(fieldName, sortOrder);
+    }
+}