private void initFirstRun(Connection connection)
throws SQLException, IOException, SchemaSyncError {
LOGGER.info("Maxwell is capturing initial schema");
SchemaCapturer capturer = new SchemaCapturer(connection);
this.schema = capturer.capture();
BinlogPosition pos = BinlogPosition.capture(connection);
SchemaStore store =
new SchemaStore(connection, this.maxwellContext.getServerID(), this.schema, pos);
store.save();
this.maxwellContext.setPosition(pos);
}
@Override
public void start(Map<String, String> props) {
try {
OffsetStorageReader offsetStorageReader = this.context.offsetStorageReader();
Map<String, Object> offsetFromCopycat = offsetStorageReader.offset(sourcePartition());
// XXX Need an API to pass values to Maxwell. For now, do it the dumb
// way.
String[] argv =
new String[] {
"--user="******"--password="******"--host=" + props.get(MySqlSourceConnector.HOST_CONFIG),
"--port=" + props.get(MySqlSourceConnector.PORT_CONFIG)
};
this.config = new MaxwellConfig(argv);
if (this.config.log_level != null) MaxwellLogging.setLevel(this.config.log_level);
this.maxwellContext = new MaxwellContext(this.config);
BinlogPosition startAt;
try (Connection connection = this.maxwellContext.getConnectionPool().getConnection()) {
MaxwellMysqlStatus.ensureMysqlState(connection);
SchemaStore.ensureMaxwellSchema(connection);
SchemaStore.upgradeSchemaStoreSchema(connection);
SchemaStore.handleMasterChange(connection, maxwellContext.getServerID());
if (offsetFromCopycat != null) {
System.out.println("have copycat offsets! " + offsetFromCopycat);
startAt =
new BinlogPosition(
(long) offsetFromCopycat.get(POSITION_FIELD),
(String) offsetFromCopycat.get(FILENAME_FIELD));
LOGGER.info("Maxwell is booting, starting at " + startAt);
SchemaStore store =
SchemaStore.restore(connection, this.maxwellContext.getServerID(), startAt);
this.schema = store.getSchema();
} else {
System.out.println("no copycat offsets!");
LOGGER.info("Maxwell is capturing initial schema");
SchemaCapturer capturer = new SchemaCapturer(connection);
this.schema = capturer.capture();
startAt = BinlogPosition.capture(connection);
SchemaStore store =
new SchemaStore(connection, this.maxwellContext.getServerID(), this.schema, startAt);
store.save();
}
} catch (SQLException e) {
LOGGER.error("Failed to connect to mysql server @ " + this.config.getConnectionURI());
LOGGER.error(e.getLocalizedMessage());
throw e;
}
// TODO Auto-generated method stub
this.replicator =
new MaxwellReplicator(this.schema, null /* producer */, this.maxwellContext, startAt);
this.maxwellContext.start();
this.replicator.beforeStart(); // starts open replicator
} catch (Exception e) {
throw new ConnectException("Error Initializing Maxwell", e);
}
}