feat: add tdengine jdbc history writer
This commit is contained in:
@@ -0,0 +1,147 @@
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package com.lingniu.ingest.tdenginehistory;
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import javax.sql.DataSource;
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import java.io.IOException;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.SQLException;
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import java.sql.Statement;
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import java.sql.Timestamp;
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import java.time.Instant;
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import java.util.LinkedHashMap;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.function.Function;
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public final class TdengineJdbcHistoryWriter implements TdengineHistoryWriter {
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private final DataSource dataSource;
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private final TdengineHistorySchema schema;
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private final TdengineHistoryStatements statements;
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public TdengineJdbcHistoryWriter(DataSource dataSource, TdengineHistorySchema schema) {
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if (dataSource == null) {
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throw new IllegalArgumentException("dataSource must not be null");
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}
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if (schema == null) {
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throw new IllegalArgumentException("schema must not be null");
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}
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this.dataSource = dataSource;
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this.schema = schema;
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this.statements = new TdengineHistoryStatements(schema);
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}
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public void initializeSchema() throws IOException {
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inTransaction(connection -> {
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try (Statement statement = connection.createStatement()) {
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for (String sql : schema.bootstrapSql()) {
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statement.execute(sql);
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}
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}
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});
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}
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@Override
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public void appendRawFrames(List<TdengineRawFrameRow> rows) throws IOException {
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append(rows, statements::rawFrame);
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}
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@Override
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public void appendLocations(List<TdengineLocationRow> rows) throws IOException {
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append(rows, statements::location);
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}
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private <T> void append(List<T> rows, Function<T, TdengineBatchStatement> mapper) throws IOException {
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if (rows == null || rows.isEmpty()) {
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return;
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}
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inTransaction(connection -> {
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Set<String> createdChildTables = new LinkedHashSet<>();
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Map<String, PreparedStatement> preparedStatements = new LinkedHashMap<>();
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try {
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for (T row : rows) {
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if (row == null) {
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continue;
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}
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TdengineBatchStatement batch = mapper.apply(row);
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if (createdChildTables.add(batch.createChildTableSql())) {
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try (Statement statement = connection.createStatement()) {
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statement.execute(batch.createChildTableSql());
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}
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}
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PreparedStatement prepared = preparedStatements.computeIfAbsent(batch.insertSql(), sql -> {
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try {
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return connection.prepareStatement(sql);
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} catch (SQLException e) {
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throw new JdbcRuntimeException(e);
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}
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});
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bind(prepared, batch.values());
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prepared.addBatch();
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}
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for (PreparedStatement prepared : preparedStatements.values()) {
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prepared.executeBatch();
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}
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} finally {
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for (PreparedStatement prepared : preparedStatements.values()) {
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prepared.close();
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}
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}
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});
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}
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private static void bind(PreparedStatement prepared, List<Object> values) throws SQLException {
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for (int i = 0; i < values.size(); i++) {
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Object value = values.get(i);
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int parameterIndex = i + 1;
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if (value instanceof Instant instant) {
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prepared.setTimestamp(parameterIndex, Timestamp.from(instant));
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} else {
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prepared.setObject(parameterIndex, value);
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}
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}
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}
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private void inTransaction(SqlWork work) throws IOException {
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try (Connection connection = dataSource.getConnection()) {
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boolean autoCommit = connection.getAutoCommit();
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connection.setAutoCommit(false);
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try {
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work.execute(connection);
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connection.commit();
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} catch (JdbcRuntimeException e) {
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rollback(connection);
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throw e.getCause();
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} catch (SQLException e) {
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rollback(connection);
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throw e;
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} finally {
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connection.setAutoCommit(autoCommit);
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}
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} catch (SQLException e) {
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throw new IOException("tdengine history write failed", e);
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}
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}
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private static void rollback(Connection connection) throws SQLException {
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connection.rollback();
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}
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@FunctionalInterface
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private interface SqlWork {
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void execute(Connection connection) throws SQLException;
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}
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private static final class JdbcRuntimeException extends RuntimeException {
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private JdbcRuntimeException(SQLException cause) {
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super(cause);
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}
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@Override
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public synchronized SQLException getCause() {
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return (SQLException) super.getCause();
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}
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}
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}
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@@ -1,12 +1,18 @@
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package com.lingniu.ingest.tdenginehistory.config;
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import com.lingniu.ingest.tdenginehistory.TdengineHistorySchema;
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import com.lingniu.ingest.tdenginehistory.TdengineHistoryStatements;
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import com.lingniu.ingest.tdenginehistory.TdengineHistoryWriter;
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import com.lingniu.ingest.tdenginehistory.TdengineJdbcHistoryWriter;
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import org.springframework.boot.autoconfigure.AutoConfiguration;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
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import org.springframework.boot.context.properties.EnableConfigurationProperties;
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import org.springframework.context.annotation.Bean;
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import javax.sql.DataSource;
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@AutoConfiguration
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@EnableConfigurationProperties(TdengineHistoryProperties.class)
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public class TdengineHistoryAutoConfiguration {
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@@ -20,4 +26,25 @@ public class TdengineHistoryAutoConfiguration {
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public TdengineHistorySchema tdengineHistorySchema(TdengineHistoryProperties properties) {
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return new TdengineHistorySchema(properties.getDatabase());
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}
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@Bean
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@ConditionalOnMissingBean
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@ConditionalOnProperty(
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prefix = "lingniu.ingest.tdengine-history",
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name = "enabled",
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havingValue = "true")
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public TdengineHistoryStatements tdengineHistoryStatements(TdengineHistorySchema schema) {
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return new TdengineHistoryStatements(schema);
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}
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@Bean
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@ConditionalOnMissingBean
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@ConditionalOnBean(DataSource.class)
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@ConditionalOnProperty(
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prefix = "lingniu.ingest.tdengine-history",
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name = "enabled",
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havingValue = "true")
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public TdengineHistoryWriter tdengineHistoryWriter(DataSource dataSource, TdengineHistorySchema schema) {
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return new TdengineJdbcHistoryWriter(dataSource, schema);
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}
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}
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@@ -0,0 +1,208 @@
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package com.lingniu.ingest.tdenginehistory;
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import org.junit.jupiter.api.Test;
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import javax.sql.DataSource;
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import java.lang.reflect.Proxy;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.Statement;
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import java.sql.Timestamp;
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import java.time.Instant;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import static org.assertj.core.api.Assertions.assertThat;
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class TdengineJdbcHistoryWriterTest {
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private final TdengineHistorySchema schema = new TdengineHistorySchema("vehicle_history");
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@Test
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void initializesSchemaWithBootstrapSql() throws Exception {
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RecordingJdbc jdbc = new RecordingJdbc();
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TdengineJdbcHistoryWriter writer = new TdengineJdbcHistoryWriter(jdbc.dataSource(), schema);
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writer.initializeSchema();
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assertThat(jdbc.executedSql)
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.containsExactlyElementsOf(schema.bootstrapSql());
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assertThat(jdbc.commits).isEqualTo(1);
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}
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@Test
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void writesRawFramesInBatchesPerChildTable() throws Exception {
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RecordingJdbc jdbc = new RecordingJdbc();
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TdengineJdbcHistoryWriter writer = new TdengineJdbcHistoryWriter(jdbc.dataSource(), schema);
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TdengineRawFrameRow first = rawFrame("frame-1", Instant.parse("2026-06-29T05:00:01Z"));
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TdengineRawFrameRow second = rawFrame("frame-2", Instant.parse("2026-06-29T05:00:02Z"));
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writer.appendRawFrames(List.of(first, second));
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assertThat(jdbc.executedSql)
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.filteredOn(sql -> sql.contains("USING raw_frames TAGS"))
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.hasSize(1);
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assertThat(jdbc.preparedBatches).hasSize(1);
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RecordingJdbc.PreparedBatch batch = jdbc.preparedBatches.values().iterator().next();
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assertThat(batch.sql()).contains("INSERT INTO raw_jt808_");
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assertThat(batch.rows()).hasSize(2);
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assertThat(batch.rows().getFirst().get(1)).isEqualTo(Timestamp.from(first.ts()));
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assertThat(batch.rows().getFirst().get(2)).isEqualTo("frame-1");
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assertThat(batch.rows().get(1).get(2)).isEqualTo("frame-2");
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assertThat(jdbc.commits).isEqualTo(1);
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}
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@Test
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void writesLocationRowsWithNullableMileage() throws Exception {
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RecordingJdbc jdbc = new RecordingJdbc();
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TdengineJdbcHistoryWriter writer = new TdengineJdbcHistoryWriter(jdbc.dataSource(), schema);
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TdengineLocationRow location = new TdengineLocationRow(
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Instant.parse("2026-06-29T05:00:01Z"),
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"fact-1",
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"frame-1",
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Instant.parse("2026-06-29T05:00:02Z"),
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113.1,
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23.4,
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8.0,
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42.0,
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90.0,
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1,
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3,
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null,
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"archive://gb32960/frame-1.bin",
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"{}",
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"GB32960",
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"vin:VIN123",
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"VIN123",
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"");
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writer.appendLocations(List.of(location));
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assertThat(jdbc.executedSql)
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.anyMatch(sql -> sql.contains("USING vehicle_locations TAGS"));
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RecordingJdbc.PreparedBatch batch = jdbc.preparedBatches.values().iterator().next();
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assertThat(batch.sql()).contains("INSERT INTO loc_gb32960_");
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assertThat(batch.rows().getFirst().get(12)).isNull();
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}
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private static TdengineRawFrameRow rawFrame(String frameId, Instant ts) {
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return new TdengineRawFrameRow(
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ts,
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frameId,
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ts.plusSeconds(1),
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0x0200,
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0,
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ts,
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"archive://jt808/" + frameId + ".bin",
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"sha256:" + frameId,
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67,
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"SUCCEEDED",
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"",
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"10.0.0.1:808",
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"{}",
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"JT808",
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"jt808:g7gps",
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"VIN123",
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"013800000000");
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}
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private static final class RecordingJdbc {
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private final List<String> executedSql = new ArrayList<>();
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private final Map<String, PreparedBatch> preparedBatches = new HashMap<>();
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private int commits;
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private int rollbacks;
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DataSource dataSource() {
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return (DataSource) Proxy.newProxyInstance(
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getClass().getClassLoader(),
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new Class<?>[]{DataSource.class},
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(proxy, method, args) -> switch (method.getName()) {
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case "getConnection" -> connection();
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case "unwrap" -> null;
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case "isWrapperFor" -> false;
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default -> defaultValue(method.getReturnType());
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});
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}
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private Connection connection() {
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return (Connection) Proxy.newProxyInstance(
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getClass().getClassLoader(),
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new Class<?>[]{Connection.class},
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(proxy, method, args) -> switch (method.getName()) {
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case "createStatement" -> statement();
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case "prepareStatement" -> preparedStatement((String) args[0]);
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case "commit" -> {
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commits++;
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yield null;
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}
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case "rollback" -> {
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rollbacks++;
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yield null;
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}
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case "getAutoCommit" -> true;
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case "unwrap" -> null;
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case "isWrapperFor" -> false;
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default -> defaultValue(method.getReturnType());
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});
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}
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private Statement statement() {
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return (Statement) Proxy.newProxyInstance(
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getClass().getClassLoader(),
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new Class<?>[]{Statement.class},
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(proxy, method, args) -> switch (method.getName()) {
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case "execute", "executeUpdate" -> {
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executedSql.add((String) args[0]);
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yield method.getReturnType() == boolean.class ? true : 1;
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}
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case "unwrap" -> null;
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case "isWrapperFor" -> false;
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default -> defaultValue(method.getReturnType());
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});
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}
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private PreparedStatement preparedStatement(String sql) {
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PreparedBatch batch = preparedBatches.computeIfAbsent(sql, PreparedBatch::new);
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Map<Integer, Object> current = new HashMap<>();
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return (PreparedStatement) Proxy.newProxyInstance(
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getClass().getClassLoader(),
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new Class<?>[]{PreparedStatement.class},
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(proxy, method, args) -> switch (method.getName()) {
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case "setTimestamp", "setObject" -> {
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current.put((Integer) args[0], args[1]);
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yield null;
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}
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case "addBatch" -> {
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batch.rows().add(new HashMap<>(current));
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current.clear();
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yield null;
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}
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case "executeBatch" -> new int[batch.rows().size()];
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case "unwrap" -> null;
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case "isWrapperFor" -> false;
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default -> defaultValue(method.getReturnType());
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});
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}
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private static Object defaultValue(Class<?> type) {
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if (type == boolean.class) {
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return false;
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}
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if (type == int.class) {
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return 0;
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}
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if (type == long.class) {
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return 0L;
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}
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return null;
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}
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record PreparedBatch(String sql, List<Map<Integer, Object>> rows) {
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PreparedBatch(String sql) {
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this(sql, new ArrayList<>());
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}
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}
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}
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}
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@@ -1,11 +1,15 @@
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package com.lingniu.ingest.tdenginehistory.config;
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import com.lingniu.ingest.tdenginehistory.TdengineHistorySchema;
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import com.lingniu.ingest.tdenginehistory.TdengineHistoryWriter;
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import org.junit.jupiter.api.Test;
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import org.springframework.boot.autoconfigure.AutoConfigurations;
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import org.springframework.boot.test.context.runner.ApplicationContextRunner;
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import javax.sql.DataSource;
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import static org.assertj.core.api.Assertions.assertThat;
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import static org.mockito.Mockito.mock;
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class TdengineHistoryAutoConfigurationTest {
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@@ -32,4 +36,12 @@ class TdengineHistoryAutoConfigurationTest {
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.isEqualTo("CREATE DATABASE IF NOT EXISTS vehicle_history_hot PRECISION 'ms'");
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});
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}
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@Test
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void createsWriterWhenEnabledAndDataSourceExists() {
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contextRunner
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.withBean(DataSource.class, () -> mock(DataSource.class))
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.withPropertyValues("lingniu.ingest.tdengine-history.enabled=true")
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.run(context -> assertThat(context).hasSingleBean(TdengineHistoryWriter.class));
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}
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}
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