/
DebeziumCdcStartupValidator.java
84 lines (73 loc) · 3.37 KB
/
DebeziumCdcStartupValidator.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
package io.eventuate.local.cdc.debezium;
import io.debezium.config.Configuration;
import io.debezium.connector.mysql.MySqlConnectorConfig;
import io.debezium.connector.mysql.MySqlJdbcContext;
import io.debezium.jdbc.JdbcConnection;
import io.eventuate.local.java.kafka.consumer.EventuateKafkaConsumerConfigurationProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;
public class DebeziumCdcStartupValidator extends CdcStartupValidator {
private JdbcUrl jdbcUrl;
private String dbUser;
private String dbPassword;
private long mySqlValidationTimeoutMillis;
private int mySqlValidationMaxAttempts;
private Logger logger = LoggerFactory.getLogger(this.getClass());
public DebeziumCdcStartupValidator(JdbcUrl jdbcUrl,
String dbUser,
String dbPassword,
String bootstrapServers,
EventuateKafkaConsumerConfigurationProperties eventuateKafkaConsumerConfigurationProperties) {
super(bootstrapServers, eventuateKafkaConsumerConfigurationProperties);
this.jdbcUrl = jdbcUrl;
this.dbUser = dbUser;
this.dbPassword = dbPassword;
}
@Override
public void validateEnvironment() {
super.validateEnvironment();
validateDatasourceConnection();
}
private void validateDatasourceConnection() {
logger.info("About to validate DataSource connection");
Map<String, String> connectorConfig = new HashMap<>();
connectorConfig.put(MySqlConnectorConfig.HOSTNAME.name(), jdbcUrl.getHost());
connectorConfig.put(MySqlConnectorConfig.PORT.name(), String.valueOf(jdbcUrl.getPort()));
connectorConfig.put(MySqlConnectorConfig.USER.name(), dbUser);
connectorConfig.put(MySqlConnectorConfig.PASSWORD.name(), dbPassword);
Configuration config = Configuration.from(connectorConfig);
try (MySqlJdbcContext jdbcContext = new MySqlJdbcContext(config)) {
jdbcContext.start();
JdbcConnection mysql = jdbcContext.jdbc();
int i = mySqlValidationMaxAttempts;
SQLException lastException = null;
while (i > 0) {
try {
mysql.execute("SELECT version()");
logger.info("Successfully tested connection for {}:{} with user '{}'", jdbcContext.hostname(), jdbcContext.port(), mysql.username());
return;
} catch (SQLException e) {
lastException = e;
logger.warn(String.format("Failed testing connection for %s:%s with user '%s'", jdbcContext.hostname(), jdbcContext.port(), mysql.username()), e);
i--;
try {
Thread.sleep(mySqlValidationTimeoutMillis);
} catch (InterruptedException ie) {
throw new RuntimeException("MySql validation had been interrupted!", ie);
}
}
}
logger.error(String.format("Could not connect to database for %s:%s with user '%s'", jdbcContext.hostname(), jdbcContext.port(), mysql.username()), lastException);
throw new RuntimeException(lastException);
}
}
public void setMySqlValidationTimeoutMillis(long mySqlValidationTimeoutMillis) {
this.mySqlValidationTimeoutMillis = mySqlValidationTimeoutMillis;
}
public void setMySqlValidationMaxAttempts(int mySqlValidationMaxAttempts) {
this.mySqlValidationMaxAttempts = mySqlValidationMaxAttempts;
}
}