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+/*
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+ * Licensed to the Apache Software Foundation (ASF) under one
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+ * or more contributor license agreements. See the NOTICE file
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+ * distributed with this work for additional information
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+ * regarding copyright ownership. The ASF licenses this file
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+ * to you under the Apache License, Version 2.0 (the
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+ * "License"); you may not use this file except in compliance
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+ * with the License. You may obtain a copy of the License at
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+ *
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+ * http://www.apache.org/licenses/LICENSE-2.0
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+ *
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+ * Unless required by applicable law or agreed to in writing,
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+ * software distributed under the License is distributed on an
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+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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+ * KIND, either express or implied. See the License for the
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+ * specific language governing permissions and limitations
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+ * under the License.
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+ */
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+
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+package io.milvus.v2;
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+
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+import com.google.gson.JsonObject;
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+import io.milvus.common.utils.JsonUtils;
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+import io.milvus.v1.CommonUtils;
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+import io.milvus.v2.client.ConnectConfig;
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+import io.milvus.v2.client.MilvusClientV2;
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+import io.milvus.v2.common.ConsistencyLevel;
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+import io.milvus.v2.common.DataType;
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+import io.milvus.v2.common.IndexParam;
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+import io.milvus.v2.service.collection.request.AddFieldReq;
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+import io.milvus.v2.service.collection.request.CreateCollectionReq;
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+import io.milvus.v2.service.collection.request.DropCollectionReq;
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+import io.milvus.v2.service.collection.request.LoadCollectionReq;
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+import io.milvus.v2.service.index.request.CreateIndexReq;
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+import io.milvus.v2.service.vector.request.InsertReq;
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+import io.milvus.v2.service.vector.request.QueryReq;
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+import io.milvus.v2.service.vector.response.QueryResp;
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+
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+import java.util.*;
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+
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+public class GeometryExample {
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+ private static final MilvusClientV2 client;
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+ static {
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+ client = new MilvusClientV2(ConnectConfig.builder()
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+ .uri("http://localhost:19530")
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+ .build());
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+ }
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+
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+ private static final String COLLECTION_NAME = "java_sdk_example_geometry_v2";
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+ private static final String ID_FIELD = "id";
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+ private static final String GEO_FIELD = "geometry";
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+ private static final String VECTOR_FIELD = "vector";
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+ private static final Integer VECTOR_DIM = 128;
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+
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+ private static void createCollection() {
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+ CreateCollectionReq.CollectionSchema collectionSchema = CreateCollectionReq.CollectionSchema.builder()
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+ .build();
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+ collectionSchema.addField(AddFieldReq.builder()
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+ .fieldName(ID_FIELD)
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+ .dataType(DataType.Int64)
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+ .isPrimaryKey(true)
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+ .autoID(true)
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+ .build());
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+ collectionSchema.addField(AddFieldReq.builder()
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+ .fieldName(GEO_FIELD)
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+ .dataType(DataType.Geometry)
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+ .build());
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+ collectionSchema.addField(AddFieldReq.builder()
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+ .fieldName(VECTOR_FIELD)
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+ .dataType(DataType.FloatVector)
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+ .dimension(VECTOR_DIM)
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+ .build());
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+
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+ client.dropCollection(DropCollectionReq.builder()
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+ .collectionName(COLLECTION_NAME)
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+ .build());
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+
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+ CreateCollectionReq requestCreate = CreateCollectionReq.builder()
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+ .collectionName(COLLECTION_NAME)
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+ .collectionSchema(collectionSchema)
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+ .build();
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+ client.createCollection(requestCreate);
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+
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+ List<IndexParam> indexParams = new ArrayList<>();
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+ indexParams.add(IndexParam.builder()
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+ .fieldName(VECTOR_FIELD)
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+ .indexType(IndexParam.IndexType.AUTOINDEX)
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+ .metricType(IndexParam.MetricType.COSINE)
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+ .build());
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+ // geometry index no need metric type
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+ indexParams.add(IndexParam.builder()
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+ .fieldName(GEO_FIELD)
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+ .indexType(IndexParam.IndexType.RTREE)
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+ .build());
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+ client.createIndex(CreateIndexReq.builder()
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+ .collectionName(COLLECTION_NAME)
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+ .indexParams(indexParams)
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+ .build());
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+ client.loadCollection(LoadCollectionReq.builder()
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+ .collectionName(COLLECTION_NAME)
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+ .build());
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+ System.out.println("Collection created: " + COLLECTION_NAME);
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+ }
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+
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+ private static void insertGeometry(String geo) {
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+ JsonObject row = new JsonObject();
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+ row.addProperty(GEO_FIELD, geo);
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+ row.add(VECTOR_FIELD, JsonUtils.toJsonTree(CommonUtils.generateFloatVector(VECTOR_DIM)));
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+
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+ client.insert(InsertReq.builder()
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+ .collectionName(COLLECTION_NAME)
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+ .data(Collections.singletonList(row))
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+ .build());
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+ System.out.println("Inserted geometry: " + geo);
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+ }
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+
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+ private static void printRowCount() {
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+ QueryResp countR = client.query(QueryReq.builder()
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+ .collectionName(COLLECTION_NAME)
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+ .outputFields(Collections.singletonList("count(*)"))
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+ .consistencyLevel(ConsistencyLevel.STRONG)
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+ .build());
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+ System.out.printf("%d rows persisted\n", (long)countR.getQueryResults().get(0).getEntity().get("count(*)"));
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+ }
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+
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+ private static void query(String filter) {
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+ System.out.println("===================================================");
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+ System.out.println("Query with filter expression: " + filter);
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+ QueryResp queryResp = client.query(QueryReq.builder()
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+ .collectionName(COLLECTION_NAME)
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+ .filter(filter)
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+ .consistencyLevel(ConsistencyLevel.BOUNDED)
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+ .outputFields(Collections.singletonList(GEO_FIELD))
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+ .build());
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+ List<QueryResp.QueryResult> queryResults = queryResp.getQueryResults();
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+ System.out.println("Query results:");
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+ for (QueryResp.QueryResult result : queryResults) {
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+ System.out.println(result.getEntity());
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+ }
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+ }
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+
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+ public static void main(String[] args) {
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+ createCollection();
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+ insertGeometry("POINT (1 1)");
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+ insertGeometry("LINESTRING (10 10, 10 30, 40 40)");
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+ insertGeometry("POLYGON ((0 100, 100 100, 100 50, 0 50, 0 100))");
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+ printRowCount();
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+
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+ query("ST_EQUALS(" + GEO_FIELD + ", 'POINT (1 1)')");
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+ query("ST_TOUCHES(" + GEO_FIELD + ", 'LINESTRING (0 50, 0 100)')");
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+ query("ST_CONTAINS(" + GEO_FIELD + ", 'POINT (70 70)')");
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+ query("ST_CROSSES(" + GEO_FIELD + ", 'LINESTRING (20 0, 20 100)')");
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+ query("ST_WITHIN(" + GEO_FIELD + ", 'POLYGON ((0 0, 2 0, 2 2, 0 2, 0 0))')");
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+ }
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+}
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groot