feat: add tdengine jdbc history writer

This commit is contained in:
lingniu
2026-06-29 13:28:36 +08:00
parent f58fe51cf5
commit 4de723d0b4
4 changed files with 394 additions and 0 deletions

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@@ -0,0 +1,147 @@
package com.lingniu.ingest.tdenginehistory;
import javax.sql.DataSource;
import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Timestamp;
import java.time.Instant;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
public final class TdengineJdbcHistoryWriter implements TdengineHistoryWriter {
private final DataSource dataSource;
private final TdengineHistorySchema schema;
private final TdengineHistoryStatements statements;
public TdengineJdbcHistoryWriter(DataSource dataSource, TdengineHistorySchema schema) {
if (dataSource == null) {
throw new IllegalArgumentException("dataSource must not be null");
}
if (schema == null) {
throw new IllegalArgumentException("schema must not be null");
}
this.dataSource = dataSource;
this.schema = schema;
this.statements = new TdengineHistoryStatements(schema);
}
public void initializeSchema() throws IOException {
inTransaction(connection -> {
try (Statement statement = connection.createStatement()) {
for (String sql : schema.bootstrapSql()) {
statement.execute(sql);
}
}
});
}
@Override
public void appendRawFrames(List<TdengineRawFrameRow> rows) throws IOException {
append(rows, statements::rawFrame);
}
@Override
public void appendLocations(List<TdengineLocationRow> rows) throws IOException {
append(rows, statements::location);
}
private <T> void append(List<T> rows, Function<T, TdengineBatchStatement> mapper) throws IOException {
if (rows == null || rows.isEmpty()) {
return;
}
inTransaction(connection -> {
Set<String> createdChildTables = new LinkedHashSet<>();
Map<String, PreparedStatement> preparedStatements = new LinkedHashMap<>();
try {
for (T row : rows) {
if (row == null) {
continue;
}
TdengineBatchStatement batch = mapper.apply(row);
if (createdChildTables.add(batch.createChildTableSql())) {
try (Statement statement = connection.createStatement()) {
statement.execute(batch.createChildTableSql());
}
}
PreparedStatement prepared = preparedStatements.computeIfAbsent(batch.insertSql(), sql -> {
try {
return connection.prepareStatement(sql);
} catch (SQLException e) {
throw new JdbcRuntimeException(e);
}
});
bind(prepared, batch.values());
prepared.addBatch();
}
for (PreparedStatement prepared : preparedStatements.values()) {
prepared.executeBatch();
}
} finally {
for (PreparedStatement prepared : preparedStatements.values()) {
prepared.close();
}
}
});
}
private static void bind(PreparedStatement prepared, List<Object> values) throws SQLException {
for (int i = 0; i < values.size(); i++) {
Object value = values.get(i);
int parameterIndex = i + 1;
if (value instanceof Instant instant) {
prepared.setTimestamp(parameterIndex, Timestamp.from(instant));
} else {
prepared.setObject(parameterIndex, value);
}
}
}
private void inTransaction(SqlWork work) throws IOException {
try (Connection connection = dataSource.getConnection()) {
boolean autoCommit = connection.getAutoCommit();
connection.setAutoCommit(false);
try {
work.execute(connection);
connection.commit();
} catch (JdbcRuntimeException e) {
rollback(connection);
throw e.getCause();
} catch (SQLException e) {
rollback(connection);
throw e;
} finally {
connection.setAutoCommit(autoCommit);
}
} catch (SQLException e) {
throw new IOException("tdengine history write failed", e);
}
}
private static void rollback(Connection connection) throws SQLException {
connection.rollback();
}
@FunctionalInterface
private interface SqlWork {
void execute(Connection connection) throws SQLException;
}
private static final class JdbcRuntimeException extends RuntimeException {
private JdbcRuntimeException(SQLException cause) {
super(cause);
}
@Override
public synchronized SQLException getCause() {
return (SQLException) super.getCause();
}
}
}

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@@ -1,12 +1,18 @@
package com.lingniu.ingest.tdenginehistory.config; package com.lingniu.ingest.tdenginehistory.config;
import com.lingniu.ingest.tdenginehistory.TdengineHistorySchema; import com.lingniu.ingest.tdenginehistory.TdengineHistorySchema;
import com.lingniu.ingest.tdenginehistory.TdengineHistoryStatements;
import com.lingniu.ingest.tdenginehistory.TdengineHistoryWriter;
import com.lingniu.ingest.tdenginehistory.TdengineJdbcHistoryWriter;
import org.springframework.boot.autoconfigure.AutoConfiguration; import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean; import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty; import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties; import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Bean;
import javax.sql.DataSource;
@AutoConfiguration @AutoConfiguration
@EnableConfigurationProperties(TdengineHistoryProperties.class) @EnableConfigurationProperties(TdengineHistoryProperties.class)
public class TdengineHistoryAutoConfiguration { public class TdengineHistoryAutoConfiguration {
@@ -20,4 +26,25 @@ public class TdengineHistoryAutoConfiguration {
public TdengineHistorySchema tdengineHistorySchema(TdengineHistoryProperties properties) { public TdengineHistorySchema tdengineHistorySchema(TdengineHistoryProperties properties) {
return new TdengineHistorySchema(properties.getDatabase()); return new TdengineHistorySchema(properties.getDatabase());
} }
@Bean
@ConditionalOnMissingBean
@ConditionalOnProperty(
prefix = "lingniu.ingest.tdengine-history",
name = "enabled",
havingValue = "true")
public TdengineHistoryStatements tdengineHistoryStatements(TdengineHistorySchema schema) {
return new TdengineHistoryStatements(schema);
}
@Bean
@ConditionalOnMissingBean
@ConditionalOnBean(DataSource.class)
@ConditionalOnProperty(
prefix = "lingniu.ingest.tdengine-history",
name = "enabled",
havingValue = "true")
public TdengineHistoryWriter tdengineHistoryWriter(DataSource dataSource, TdengineHistorySchema schema) {
return new TdengineJdbcHistoryWriter(dataSource, schema);
}
} }

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@@ -0,0 +1,208 @@
package com.lingniu.ingest.tdenginehistory;
import org.junit.jupiter.api.Test;
import javax.sql.DataSource;
import java.lang.reflect.Proxy;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.Statement;
import java.sql.Timestamp;
import java.time.Instant;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static org.assertj.core.api.Assertions.assertThat;
class TdengineJdbcHistoryWriterTest {
private final TdengineHistorySchema schema = new TdengineHistorySchema("vehicle_history");
@Test
void initializesSchemaWithBootstrapSql() throws Exception {
RecordingJdbc jdbc = new RecordingJdbc();
TdengineJdbcHistoryWriter writer = new TdengineJdbcHistoryWriter(jdbc.dataSource(), schema);
writer.initializeSchema();
assertThat(jdbc.executedSql)
.containsExactlyElementsOf(schema.bootstrapSql());
assertThat(jdbc.commits).isEqualTo(1);
}
@Test
void writesRawFramesInBatchesPerChildTable() throws Exception {
RecordingJdbc jdbc = new RecordingJdbc();
TdengineJdbcHistoryWriter writer = new TdengineJdbcHistoryWriter(jdbc.dataSource(), schema);
TdengineRawFrameRow first = rawFrame("frame-1", Instant.parse("2026-06-29T05:00:01Z"));
TdengineRawFrameRow second = rawFrame("frame-2", Instant.parse("2026-06-29T05:00:02Z"));
writer.appendRawFrames(List.of(first, second));
assertThat(jdbc.executedSql)
.filteredOn(sql -> sql.contains("USING raw_frames TAGS"))
.hasSize(1);
assertThat(jdbc.preparedBatches).hasSize(1);
RecordingJdbc.PreparedBatch batch = jdbc.preparedBatches.values().iterator().next();
assertThat(batch.sql()).contains("INSERT INTO raw_jt808_");
assertThat(batch.rows()).hasSize(2);
assertThat(batch.rows().getFirst().get(1)).isEqualTo(Timestamp.from(first.ts()));
assertThat(batch.rows().getFirst().get(2)).isEqualTo("frame-1");
assertThat(batch.rows().get(1).get(2)).isEqualTo("frame-2");
assertThat(jdbc.commits).isEqualTo(1);
}
@Test
void writesLocationRowsWithNullableMileage() throws Exception {
RecordingJdbc jdbc = new RecordingJdbc();
TdengineJdbcHistoryWriter writer = new TdengineJdbcHistoryWriter(jdbc.dataSource(), schema);
TdengineLocationRow location = new TdengineLocationRow(
Instant.parse("2026-06-29T05:00:01Z"),
"fact-1",
"frame-1",
Instant.parse("2026-06-29T05:00:02Z"),
113.1,
23.4,
8.0,
42.0,
90.0,
1,
3,
null,
"archive://gb32960/frame-1.bin",
"{}",
"GB32960",
"vin:VIN123",
"VIN123",
"");
writer.appendLocations(List.of(location));
assertThat(jdbc.executedSql)
.anyMatch(sql -> sql.contains("USING vehicle_locations TAGS"));
RecordingJdbc.PreparedBatch batch = jdbc.preparedBatches.values().iterator().next();
assertThat(batch.sql()).contains("INSERT INTO loc_gb32960_");
assertThat(batch.rows().getFirst().get(12)).isNull();
}
private static TdengineRawFrameRow rawFrame(String frameId, Instant ts) {
return new TdengineRawFrameRow(
ts,
frameId,
ts.plusSeconds(1),
0x0200,
0,
ts,
"archive://jt808/" + frameId + ".bin",
"sha256:" + frameId,
67,
"SUCCEEDED",
"",
"10.0.0.1:808",
"{}",
"JT808",
"jt808:g7gps",
"VIN123",
"013800000000");
}
private static final class RecordingJdbc {
private final List<String> executedSql = new ArrayList<>();
private final Map<String, PreparedBatch> preparedBatches = new HashMap<>();
private int commits;
private int rollbacks;
DataSource dataSource() {
return (DataSource) Proxy.newProxyInstance(
getClass().getClassLoader(),
new Class<?>[]{DataSource.class},
(proxy, method, args) -> switch (method.getName()) {
case "getConnection" -> connection();
case "unwrap" -> null;
case "isWrapperFor" -> false;
default -> defaultValue(method.getReturnType());
});
}
private Connection connection() {
return (Connection) Proxy.newProxyInstance(
getClass().getClassLoader(),
new Class<?>[]{Connection.class},
(proxy, method, args) -> switch (method.getName()) {
case "createStatement" -> statement();
case "prepareStatement" -> preparedStatement((String) args[0]);
case "commit" -> {
commits++;
yield null;
}
case "rollback" -> {
rollbacks++;
yield null;
}
case "getAutoCommit" -> true;
case "unwrap" -> null;
case "isWrapperFor" -> false;
default -> defaultValue(method.getReturnType());
});
}
private Statement statement() {
return (Statement) Proxy.newProxyInstance(
getClass().getClassLoader(),
new Class<?>[]{Statement.class},
(proxy, method, args) -> switch (method.getName()) {
case "execute", "executeUpdate" -> {
executedSql.add((String) args[0]);
yield method.getReturnType() == boolean.class ? true : 1;
}
case "unwrap" -> null;
case "isWrapperFor" -> false;
default -> defaultValue(method.getReturnType());
});
}
private PreparedStatement preparedStatement(String sql) {
PreparedBatch batch = preparedBatches.computeIfAbsent(sql, PreparedBatch::new);
Map<Integer, Object> current = new HashMap<>();
return (PreparedStatement) Proxy.newProxyInstance(
getClass().getClassLoader(),
new Class<?>[]{PreparedStatement.class},
(proxy, method, args) -> switch (method.getName()) {
case "setTimestamp", "setObject" -> {
current.put((Integer) args[0], args[1]);
yield null;
}
case "addBatch" -> {
batch.rows().add(new HashMap<>(current));
current.clear();
yield null;
}
case "executeBatch" -> new int[batch.rows().size()];
case "unwrap" -> null;
case "isWrapperFor" -> false;
default -> defaultValue(method.getReturnType());
});
}
private static Object defaultValue(Class<?> type) {
if (type == boolean.class) {
return false;
}
if (type == int.class) {
return 0;
}
if (type == long.class) {
return 0L;
}
return null;
}
record PreparedBatch(String sql, List<Map<Integer, Object>> rows) {
PreparedBatch(String sql) {
this(sql, new ArrayList<>());
}
}
}
}

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@@ -1,11 +1,15 @@
package com.lingniu.ingest.tdenginehistory.config; package com.lingniu.ingest.tdenginehistory.config;
import com.lingniu.ingest.tdenginehistory.TdengineHistorySchema; import com.lingniu.ingest.tdenginehistory.TdengineHistorySchema;
import com.lingniu.ingest.tdenginehistory.TdengineHistoryWriter;
import org.junit.jupiter.api.Test; import org.junit.jupiter.api.Test;
import org.springframework.boot.autoconfigure.AutoConfigurations; import org.springframework.boot.autoconfigure.AutoConfigurations;
import org.springframework.boot.test.context.runner.ApplicationContextRunner; import org.springframework.boot.test.context.runner.ApplicationContextRunner;
import javax.sql.DataSource;
import static org.assertj.core.api.Assertions.assertThat; import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;
class TdengineHistoryAutoConfigurationTest { class TdengineHistoryAutoConfigurationTest {
@@ -32,4 +36,12 @@ class TdengineHistoryAutoConfigurationTest {
.isEqualTo("CREATE DATABASE IF NOT EXISTS vehicle_history_hot PRECISION 'ms'"); .isEqualTo("CREATE DATABASE IF NOT EXISTS vehicle_history_hot PRECISION 'ms'");
}); });
} }
@Test
void createsWriterWhenEnabledAndDataSourceExists() {
contextRunner
.withBean(DataSource.class, () -> mock(DataSource.class))
.withPropertyValues("lingniu.ingest.tdengine-history.enabled=true")
.run(context -> assertThat(context).hasSingleBean(TdengineHistoryWriter.class));
}
} }