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Add storage address mapping transform (#589)
* fix conflict * Add storage address mapping transform * update --------- Co-authored-by: Anqi <[email protected]> Co-authored-by: jiangyiwang-jk <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| package com.vesoft.nebula.util; | ||
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| import com.vesoft.nebula.HostAddr; | ||
| import com.vesoft.nebula.client.graph.data.HostAddress; | ||
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| /** | ||
| * The util of network | ||
| * | ||
| * @Author jiangyiwang-jk | ||
| * @Date 2024/2/1 15:36 | ||
| */ | ||
| public class NetUtil { | ||
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| private NetUtil() { | ||
| ; | ||
| } | ||
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| public static HostAddr parseHostAddr(String hostAddress) { | ||
| assert hostAddress != null : "Host address should not be null"; | ||
| String[] hostPort = hostAddress.split(":"); | ||
| assert hostPort.length == 2 : String.format("Invalid host address %s", hostAddress); | ||
| return new HostAddr(hostPort[0].trim(), Integer.parseInt(hostPort[1].trim())); | ||
| } | ||
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| } |
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examples/src/main/java/com/vesoft/nebula/examples/SpecialAddressStorageClientExample.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,123 @@ | ||
| /* Copyright (c) 2020 vesoft inc. All rights reserved. | ||
| * | ||
| * This source code is licensed under Apache 2.0 License. | ||
| */ | ||
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| package com.vesoft.nebula.examples; | ||
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| import com.vesoft.nebula.client.storage.StorageClient; | ||
| import com.vesoft.nebula.client.storage.data.EdgeTableRow; | ||
| import com.vesoft.nebula.client.storage.data.VertexRow; | ||
| import com.vesoft.nebula.client.storage.data.VertexTableRow; | ||
| import com.vesoft.nebula.client.storage.scan.ScanEdgeResult; | ||
| import com.vesoft.nebula.client.storage.scan.ScanEdgeResultIterator; | ||
| import com.vesoft.nebula.client.storage.scan.ScanVertexResult; | ||
| import com.vesoft.nebula.client.storage.scan.ScanVertexResultIterator; | ||
| import java.util.Arrays; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| public class SpecialAddressStorageClientExample { | ||
| private static final Logger LOGGER = | ||
| LoggerFactory.getLogger(SpecialAddressStorageClientExample.class); | ||
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| public static void main(String[] args) { | ||
| Map<String,String> storageAddressMapping = new HashMap<>(); | ||
| storageAddressMapping.put("127.0.0.1:9559","10.xx.xx.xx:9559"); | ||
| // input params are the metad's ip and port | ||
| StorageClient client = new StorageClient("127.0.0.1", 9559); | ||
| // set storage address mapping | ||
| client.setStorageAddressMapping(storageAddressMapping); | ||
| try { | ||
| client.connect(); | ||
| } catch (Exception e) { | ||
| LOGGER.error("storage client connect error, ", e); | ||
| client.close(); | ||
| System.exit(1); | ||
| } | ||
| scanVertex(client); | ||
| scanEdge(client); | ||
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| client.close(); | ||
| } | ||
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| /** | ||
| * Vertex Person's property in Nebula Graph: | ||
| * first_name, last_name, gender, birthday | ||
| * Tom Li 男 2010 | ||
| */ | ||
| public static void scanVertex(StorageClient client) { | ||
| ScanVertexResultIterator iterator = client.scanVertex( | ||
| "test", | ||
| "person", | ||
| Arrays.asList("name", "age")); | ||
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| while (iterator.hasNext()) { | ||
| ScanVertexResult result = null; | ||
| try { | ||
| result = iterator.next(); | ||
| } catch (Exception e) { | ||
| LOGGER.error("scan error, ", e); | ||
| client.close(); | ||
| System.exit(1); | ||
| } | ||
| if (result.isEmpty()) { | ||
| continue; | ||
| } | ||
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| List<VertexRow> vertexRows = result.getVertices(); | ||
| for (VertexRow row : vertexRows) { | ||
| if (result.getVertex(row.getVid()) != null) { | ||
| System.out.println(result.getVertex(row.getVid())); | ||
| } | ||
| } | ||
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| System.out.println("\nresult vertex table view:"); | ||
| System.out.println(result.getPropNames()); | ||
| List<VertexTableRow> vertexTableRows = result.getVertexTableRows(); | ||
| for (VertexTableRow vertex : vertexTableRows) { | ||
| System.out.println(vertex.getValues()); | ||
| } | ||
| System.out.println("\n"); | ||
| } | ||
| } | ||
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| /** | ||
| * Edge Friend's property in Nebula Graph: | ||
| * degree | ||
| * 1.0 | ||
| */ | ||
| public static void scanEdge(StorageClient client) { | ||
| ScanEdgeResultIterator iterator = client.scanEdge( | ||
| "test", | ||
| "like", | ||
| Arrays.asList("likeness")); | ||
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| while (iterator.hasNext()) { | ||
| ScanEdgeResult result = null; | ||
| try { | ||
| result = iterator.next(); | ||
| } catch (Exception e) { | ||
| LOGGER.error("scan error, ", e); | ||
| client.close(); | ||
| System.exit(1); | ||
| } | ||
| if (result.isEmpty()) { | ||
| continue; | ||
| } | ||
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| System.out.println(result.getEdges()); | ||
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| System.out.println("\nresult edge table view:"); | ||
| System.out.println(result.getPropNames()); | ||
| List<EdgeTableRow> edgeTableRows = result.getEdgeTableRows(); | ||
| for (EdgeTableRow edge : edgeTableRows) { | ||
| System.out.println(edge.getValues()); | ||
| } | ||
| System.out.println("\n"); | ||
| } | ||
| } | ||
| } |