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[improve] Extract Schema change operation (apache#233)
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160 changes: 160 additions & 0 deletions
160
...doris-connector/src/main/java/org/apache/doris/flink/sink/schema/SchemaChangeManager.java
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| @@ -0,0 +1,160 @@ | ||
| // Licensed to the Apache Software Foundation (ASF) under one | ||
| // or more contributor license agreements. See the NOTICE file | ||
| // distributed with this work for additional information | ||
| // regarding copyright ownership. The ASF licenses this file | ||
| // to you under the Apache License, Version 2.0 (the | ||
| // "License"); you may not use this file except in compliance | ||
| // with the License. You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, | ||
| // software distributed under the License is distributed on an | ||
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| // KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations | ||
| // under the License. | ||
|
|
||
| package org.apache.doris.flink.sink.schema; | ||
|
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| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import org.apache.commons.codec.binary.Base64; | ||
| import org.apache.doris.flink.catalog.doris.DorisSystem; | ||
| import org.apache.doris.flink.catalog.doris.FieldSchema; | ||
| import org.apache.doris.flink.catalog.doris.TableSchema; | ||
| import org.apache.doris.flink.cfg.DorisOptions; | ||
| import org.apache.doris.flink.exception.IllegalArgumentException; | ||
| import org.apache.doris.flink.rest.RestService; | ||
| import org.apache.doris.flink.sink.HttpGetWithEntity; | ||
| import org.apache.flink.util.CollectionUtil; | ||
| import org.apache.flink.util.StringUtils; | ||
| import org.apache.http.HttpHeaders; | ||
| import org.apache.http.client.methods.CloseableHttpResponse; | ||
| import org.apache.http.client.methods.HttpPost; | ||
| import org.apache.http.client.methods.HttpUriRequest; | ||
| import org.apache.http.entity.StringEntity; | ||
| import org.apache.http.impl.client.CloseableHttpClient; | ||
| import org.apache.http.impl.client.HttpClients; | ||
| import org.apache.http.util.EntityUtils; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| import java.io.IOException; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
|
|
||
| public class SchemaChangeManager { | ||
| private static final Logger LOG = LoggerFactory.getLogger(SchemaChangeManager.class); | ||
| private static final String CHECK_SCHEMA_CHANGE_API = "http://%s/api/enable_light_schema_change/%s/%s"; | ||
| private static final String SCHEMA_CHANGE_API = "http://%s/api/query/default_cluster/"; | ||
| private ObjectMapper objectMapper = new ObjectMapper(); | ||
| private DorisOptions dorisOptions; | ||
|
|
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| public SchemaChangeManager(DorisOptions dorisOptions) { | ||
| this.dorisOptions = dorisOptions; | ||
| } | ||
|
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| public boolean createTable(TableSchema table) throws IOException, IllegalArgumentException { | ||
| String createTableDDL = DorisSystem.buildCreateTableDDL(table); | ||
| return execute(createTableDDL); | ||
| } | ||
|
|
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| public boolean addColumn(String database, String table, FieldSchema field) throws IOException, IllegalArgumentException { | ||
| String tableIdentifier = getTableIdentifier(database, table); | ||
| String addColumnDDL = SchemaChangeHelper.buildAddColumnDDL(tableIdentifier, field); | ||
| return schemaChange(database, table, buildRequestParam(false, field.getName()), addColumnDDL); | ||
| } | ||
|
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| public boolean dropColumn(String database, String table, String columnName) throws IOException, IllegalArgumentException { | ||
| String tableIdentifier = getTableIdentifier(database, table); | ||
| String dropColumnDDL = SchemaChangeHelper.buildDropColumnDDL(tableIdentifier, columnName); | ||
| return schemaChange(database, table, buildRequestParam(true, columnName), dropColumnDDL); | ||
| } | ||
|
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| public boolean renameColumn(String database, String table, String oldColumnName, String newColumnName) throws IOException, IllegalArgumentException { | ||
| String tableIdentifier = getTableIdentifier(database, table); | ||
| String renameColumnDDL = SchemaChangeHelper.buildRenameColumnDDL(tableIdentifier, oldColumnName, newColumnName); | ||
| return schemaChange(database, table, buildRequestParam(true, oldColumnName), renameColumnDDL); | ||
| } | ||
|
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| public boolean schemaChange(String database, String table, Map<String, Object> params, String sql) throws IOException, IllegalArgumentException { | ||
| if(checkSchemaChange(database, table, params)){ | ||
| return execute(sql); | ||
| } | ||
| return false; | ||
| } | ||
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| public static Map<String, Object> buildRequestParam(boolean dropColumn, String columnName) { | ||
| Map<String, Object> params = new HashMap<>(); | ||
| params.put("isDropColumn", dropColumn); | ||
| params.put("columnName", columnName); | ||
| return params; | ||
| } | ||
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| /** | ||
| * check ddl can do light schema change | ||
| */ | ||
| public boolean checkSchemaChange(String database, String table, Map<String, Object> params) throws IOException, IllegalArgumentException { | ||
| if(CollectionUtil.isNullOrEmpty(params)){ | ||
| return false; | ||
| } | ||
| String requestUrl = String.format(CHECK_SCHEMA_CHANGE_API, | ||
| RestService.randomEndpoint(dorisOptions.getFenodes(), LOG), database, table); | ||
| HttpGetWithEntity httpGet = new HttpGetWithEntity(requestUrl); | ||
| httpGet.setHeader(HttpHeaders.AUTHORIZATION, authHeader()); | ||
| httpGet.setEntity(new StringEntity(objectMapper.writeValueAsString(params))); | ||
| boolean success = handleResponse(httpGet); | ||
| if (!success) { | ||
| LOG.warn("schema change can not do table {}.{}", database, table); | ||
| } | ||
| return success; | ||
| } | ||
|
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| /** | ||
| * execute sql in doris | ||
| */ | ||
| public boolean execute(String ddl) throws IOException, IllegalArgumentException { | ||
| if(StringUtils.isNullOrWhitespaceOnly(ddl)){ | ||
| return false; | ||
| } | ||
| Map<String, String> param = new HashMap<>(); | ||
| param.put("stmt", ddl); | ||
| String requestUrl = String.format(SCHEMA_CHANGE_API, RestService.randomEndpoint(dorisOptions.getFenodes(), LOG)); | ||
| HttpPost httpPost = new HttpPost(requestUrl); | ||
| httpPost.setHeader(HttpHeaders.AUTHORIZATION, authHeader()); | ||
| httpPost.setHeader(HttpHeaders.CONTENT_TYPE, "application/json"); | ||
| httpPost.setEntity(new StringEntity(objectMapper.writeValueAsString(param))); | ||
| boolean success = handleResponse(httpPost); | ||
| return success; | ||
| } | ||
|
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| private boolean handleResponse(HttpUriRequest request) { | ||
| try (CloseableHttpClient httpclient = HttpClients.createDefault()) { | ||
| CloseableHttpResponse response = httpclient.execute(request); | ||
| final int statusCode = response.getStatusLine().getStatusCode(); | ||
| if (statusCode == 200 && response.getEntity() != null) { | ||
| String loadResult = EntityUtils.toString(response.getEntity()); | ||
| Map<String, Object> responseMap = objectMapper.readValue(loadResult, Map.class); | ||
| String code = responseMap.getOrDefault("code", "-1").toString(); | ||
| if (code.equals("0")) { | ||
| return true; | ||
| } else { | ||
| LOG.error("schema change response:{}", loadResult); | ||
| } | ||
| } | ||
| } catch (Exception e) { | ||
| LOG.error("http request error,", e); | ||
| } | ||
| return false; | ||
| } | ||
|
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| private String authHeader() { | ||
| return "Basic " + new String(Base64.encodeBase64( | ||
| (dorisOptions.getUsername() + ":" + dorisOptions.getPassword()).getBytes(StandardCharsets.UTF_8))); | ||
| } | ||
|
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| private String getTableIdentifier(String database, String table){ | ||
| return String.format("%s.%s", database, table); | ||
| } | ||
| } |
32 changes: 32 additions & 0 deletions
32
flink-doris-connector/src/main/java/org/apache/doris/flink/sink/util/DeleteOperation.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| // Licensed to the Apache Software Foundation (ASF) under one | ||
| // or more contributor license agreements. See the NOTICE file | ||
| // distributed with this work for additional information | ||
| // regarding copyright ownership. The ASF licenses this file | ||
| // to you under the Apache License, Version 2.0 (the | ||
| // "License"); you may not use this file except in compliance | ||
| // with the License. You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, | ||
| // software distributed under the License is distributed on an | ||
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| // KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations | ||
| // under the License. | ||
|
|
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| package org.apache.doris.flink.sink.util; | ||
|
|
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| import java.util.Map; | ||
|
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| import static org.apache.doris.flink.sink.writer.LoadConstants.DORIS_DELETE_SIGN; | ||
|
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| public class DeleteOperation { | ||
| public static void addDeleteSign(Map<String, Object> valueMap, boolean delete) { | ||
| if (delete) { | ||
| valueMap.put(DORIS_DELETE_SIGN, "1"); | ||
| } else { | ||
| valueMap.put(DORIS_DELETE_SIGN, "0"); | ||
| } | ||
| } | ||
| } |
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