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102 changes: 102 additions & 0 deletions
102
.../paiondata/athena/spring/boot/autoconfigure/datafetcher/SpringSQLMutationDataFetcher.java
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| /* | ||
| * Copyright Paion Data | ||
| * | ||
| * Licensed 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 com.paiondata.athena.spring.boot.autoconfigure.datafetcher; | ||
|
|
||
| import com.paiondata.athena.config.ErrorMessageFormat; | ||
| import com.paiondata.athena.config.SystemConfig; | ||
| import com.paiondata.athena.config.SystemConfigFactory; | ||
| import com.paiondata.athena.metadata.MetaData; | ||
|
|
||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| import graphql.schema.DataFetcher; | ||
| import graphql.schema.DataFetchingEnvironment; | ||
| import jakarta.inject.Inject; | ||
| import jakarta.validation.constraints.NotNull; | ||
|
|
||
| import java.sql.Connection; | ||
| import java.sql.PreparedStatement; | ||
| import java.util.AbstractMap; | ||
| import java.util.Map; | ||
| import java.util.stream.Collectors; | ||
| import java.util.stream.Stream; | ||
|
|
||
| import javax.sql.DataSource; | ||
|
|
||
| /** | ||
| * {@link SpringSQLMutationDataFetcher} saves file meta data into a SQL data storage via a {@link DataSource}. | ||
| */ | ||
| public class SpringSQLMutationDataFetcher implements DataFetcher<MetaData> { | ||
|
|
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| private static final Logger LOG = LoggerFactory.getLogger(SpringSQLMutationDataFetcher.class); | ||
| private static final SystemConfig SYSTEM_CONFIG = SystemConfigFactory.getInstance(); | ||
| private static final String TABLE_NAME_KEY = "table_name"; | ||
| private static final String TABLE_NAME = SYSTEM_CONFIG.getStringProperty( | ||
| SYSTEM_CONFIG.getPackageVariableName(TABLE_NAME_KEY) | ||
| ).orElseThrow(() -> { | ||
| LOG.error(ErrorMessageFormat.CONFIG_NOT_FOUND.logFormat(TABLE_NAME_KEY)); | ||
| return new IllegalStateException(ErrorMessageFormat.CONFIG_NOT_FOUND.format()); | ||
| }); | ||
|
|
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| private final DataSource dataSource; | ||
|
|
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| private static final String FILE_ID = "fileId"; | ||
|
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| private static final String META_DATA_PERSIST_QUERY_TEMPLATE = | ||
| "INSERT INTO " + TABLE_NAME + " (file_id, file_name, file_type) VALUES (?, ?, ?)"; | ||
|
|
||
| /** | ||
| * Constructor. | ||
| * | ||
| * @param dataSource a client object against a SQL database to save meta data into | ||
| * | ||
| * @throws NullPointerException if {@code dataSource} is {@code null} | ||
| */ | ||
| @Inject | ||
| public SpringSQLMutationDataFetcher(final DataSource dataSource) { | ||
| this.dataSource = dataSource; | ||
| } | ||
|
|
||
| @Override | ||
| public MetaData get(final DataFetchingEnvironment dataFetchingEnvironment) throws Exception { | ||
| final String fileId = dataFetchingEnvironment.getArgument(FILE_ID); | ||
| final String fileName = dataFetchingEnvironment.getArgument(MetaData.FILE_NAME); | ||
| final String fileType = dataFetchingEnvironment.getArgument(MetaData.FILE_TYPE); | ||
|
|
||
| try ( | ||
| Connection connection = getDataSource().getConnection(); | ||
| PreparedStatement statement = connection.prepareStatement(META_DATA_PERSIST_QUERY_TEMPLATE) | ||
| ) { | ||
| statement.setString(1, fileId); | ||
| statement.setString(2, fileName); | ||
| statement.setString(3, fileType); | ||
| statement.executeUpdate(); | ||
| } | ||
|
|
||
| return MetaData.of( | ||
| Stream.of( | ||
| new AbstractMap.SimpleImmutableEntry<>(MetaData.FILE_NAME, fileName), | ||
| new AbstractMap.SimpleImmutableEntry<>(MetaData.FILE_TYPE, fileType) | ||
| ).collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue)) | ||
| ); | ||
| } | ||
|
|
||
| @NotNull | ||
| private DataSource getDataSource() { | ||
| return dataSource; | ||
| } | ||
| } |
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