/** Create a native VoltDB execution engine */
ExecutionEngine initializeEE(String serializedCatalog, final long timestamp) {
String hostname = CoreUtils.getHostnameOrAddress();
ExecutionEngine eeTemp = null;
try {
if (m_backend == BackendTarget.NATIVE_EE_JNI) {
eeTemp =
new ExecutionEngineJNI(
m_context.cluster.getRelativeIndex(),
m_siteId,
m_partitionId,
CoreUtils.getHostIdFromHSId(m_siteId),
hostname,
m_context
.cluster
.getDeployment()
.get("deployment")
.getSystemsettings()
.get("systemsettings")
.getMaxtemptablesize(),
m_numberOfPartitions);
eeTemp.loadCatalog(timestamp, serializedCatalog);
} else {
// set up the EE over IPC
eeTemp =
new ExecutionEngineIPC(
m_context.cluster.getRelativeIndex(),
m_siteId,
m_partitionId,
CoreUtils.getHostIdFromHSId(m_siteId),
hostname,
m_context
.cluster
.getDeployment()
.get("deployment")
.getSystemsettings()
.get("systemsettings")
.getMaxtemptablesize(),
m_backend,
VoltDB.instance().getConfig().m_ipcPorts.remove(0),
m_numberOfPartitions);
eeTemp.loadCatalog(timestamp, serializedCatalog);
}
}
// just print error info an bail if we run into an error here
catch (final Exception ex) {
hostLog.l7dlog(
Level.FATAL,
LogKeys.host_ExecutionSite_FailedConstruction.name(),
new Object[] {m_siteId, m_siteIndex},
ex);
VoltDB.crashLocalVoltDB(ex.getMessage(), true, ex);
}
return eeTemp;
}
public void runDDL(String ddl) {
try {
// LOG.info("Executing " + ddl);
Statement stmt = dbconn.createStatement();
/*boolean success =*/ stmt.execute(ddl);
SQLWarning warn = stmt.getWarnings();
if (warn != null) sqlLog.warn(warn.getMessage());
// LOG.info("SQL DDL execute result: " + (success ? "true" : "false"));
} catch (SQLException e) {
hostLog.l7dlog(Level.ERROR, LogKeys.host_Backend_RunDDLFailed.name(), new Object[] {ddl}, e);
}
}
/**
* Log and exit if a dependency list fails an invariant.
*
* @param dependencyId
* @param dependencies
*/
void verifyDependencySanity(final Integer dependencyId, final List<VoltTable> dependencies) {
if (dependencies == null) {
hostLog.l7dlog(
Level.FATAL,
LogKeys.host_ExecutionSite_DependencyNotFound.name(),
new Object[] {dependencyId},
null);
VoltDB.crashLocalVoltDB("No additional info.", false, null);
// Prevent warnings.
return;
}
for (final Object dependency : dependencies) {
if (dependency == null) {
hostLog.l7dlog(
Level.FATAL,
LogKeys.host_ExecutionSite_DependencyContainedNull.name(),
new Object[] {dependencyId},
null);
VoltDB.crashLocalVoltDB("No additional info.", false, null);
// Prevent warnings.
return;
}
if (log.isTraceEnabled()) {
log.l7dlog(
Level.TRACE,
LogKeys.org_voltdb_ExecutionSite_ImportingDependency.name(),
new Object[] {dependencyId, dependency.getClass().getName(), dependency.toString()},
null);
}
if (!(dependency instanceof VoltTable)) {
hostLog.l7dlog(
Level.FATAL,
LogKeys.host_ExecutionSite_DependencyNotVoltTable.name(),
new Object[] {dependencyId},
null);
VoltDB.crashLocalVoltDB("No additional info.", false, null);
}
}
}
private void shutdown() {
try {
try {
Statement stmt = dbconn.createStatement();
stmt.execute("SHUTDOWN;");
} catch (Exception e) {
}
;
dbconn.close();
dbconn = null;
System.gc();
} catch (Exception e) {
hostLog.l7dlog(Level.ERROR, LogKeys.host_Backend_ErrorOnShutdown.name(), e);
}
}
public VoltTable runDML(String dml) {
dml = dml.trim();
String indicator = dml.substring(0, 1).toLowerCase();
if (indicator.equals("s")
|| // "s" is for "select ..."
indicator.equals("(")) { // "(" is for "(select ... UNION ...)" et. al.
try {
Statement stmt = dbconn.createStatement();
sqlLog.l7dlog(
Level.DEBUG, LogKeys.sql_Backend_ExecutingDML.name(), new Object[] {dml}, null);
sqlLog.debug("Executing " + dml);
ResultSet rs = stmt.executeQuery(dml);
ResultSetMetaData rsmd = rs.getMetaData();
// note the index values here carefully
VoltTable.ColumnInfo[] columns = new VoltTable.ColumnInfo[rsmd.getColumnCount()];
for (int i = 1; i <= rsmd.getColumnCount(); i++) {
String colname = rsmd.getColumnLabel(i);
String type = rsmd.getColumnTypeName(i);
// LOG.fine("Column type: " + type);
if (type.equals("VARCHAR"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.STRING);
else if (type.equals("TINYINT"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.TINYINT);
else if (type.equals("SMALLINT"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.SMALLINT);
else if (type.equals("INTEGER"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.INTEGER);
else if (type.equals("BIGINT"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.BIGINT);
else if (type.equals("DECIMAL"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.DECIMAL);
else if (type.equals("FLOAT"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.FLOAT);
else if (type.equals("TIMESTAMP"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.TIMESTAMP);
else if (type.equals("VARBINARY"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.VARBINARY);
else if (type.equals("CHARACTER"))
columns[i - 1] = new VoltTable.ColumnInfo(colname, VoltType.STRING);
else
throw new ExpectedProcedureException(
"Trying to create a column in Backend with a (currently) unsupported type: "
+ type);
}
VoltTable table = new VoltTable(columns);
while (rs.next()) {
Object[] row = new Object[table.getColumnCount()];
for (int i = 0; i < table.getColumnCount(); i++) {
// TODO(evanj): JDBC returns 0 instead of null. Put null into the row?
if (table.getColumnType(i) == VoltType.STRING) row[i] = rs.getString(i + 1);
else if (table.getColumnType(i) == VoltType.TINYINT) row[i] = rs.getByte(i + 1);
else if (table.getColumnType(i) == VoltType.SMALLINT) row[i] = rs.getShort(i + 1);
else if (table.getColumnType(i) == VoltType.INTEGER) row[i] = rs.getInt(i + 1);
else if (table.getColumnType(i) == VoltType.BIGINT) row[i] = rs.getLong(i + 1);
else if (table.getColumnType(i) == VoltType.DECIMAL) row[i] = rs.getBigDecimal(i + 1);
else if (table.getColumnType(i) == VoltType.FLOAT) row[i] = rs.getDouble(i + 1);
else if (table.getColumnType(i) == VoltType.VARBINARY) row[i] = rs.getBytes(i + 1);
else if (table.getColumnType(i) == VoltType.TIMESTAMP) {
Timestamp t = rs.getTimestamp(i + 1);
if (t == null) {
row[i] = null;
} else {
// convert from millisecond to microsecond granularity
row[i] = new org.voltdb.types.TimestampType(t.getTime() * 1000);
}
} else {
throw new ExpectedProcedureException(
"Trying to read a (currently) unsupported type from a JDBC resultset.");
}
}
table.addRow(row);
}
stmt.close();
rs.close();
return table;
} catch (Exception e) {
if (e instanceof ExpectedProcedureException) {
throw (ExpectedProcedureException) e;
}
sqlLog.l7dlog(Level.TRACE, LogKeys.sql_Backend_DmlError.name(), e);
throw new ExpectedProcedureException("HSQLDB Backend DML Error ", e);
}
} else {
try {
Statement stmt = dbconn.createStatement();
sqlLog.debug("Executing: " + dml);
long ucount = stmt.executeUpdate(dml);
sqlLog.debug(" result: " + String.valueOf(ucount));
VoltTable table = new VoltTable(new VoltTable.ColumnInfo("", VoltType.BIGINT));
table.addRow(ucount);
return table;
} catch (SQLException e) {
// glorious hack to determine if the error is a constraint failure
if (e.getMessage().contains("constraint")) {
sqlLog.l7dlog(Level.TRACE, LogKeys.sql_Backend_ConvertingHSQLExtoCFEx.name(), e);
final byte messageBytes[] = e.getMessage().getBytes();
ByteBuffer b = ByteBuffer.allocate(25 + messageBytes.length);
b.putInt(messageBytes.length);
b.put(messageBytes);
b.put(e.getSQLState().getBytes());
b.putInt(0); // ConstraintFailure.type
try {
FastSerializer.writeString("HSQL", b);
} catch (IOException e1) {
e1.printStackTrace();
}
b.putInt(0); // Table size is 0
b.rewind();
throw new ConstraintFailureException(b);
} else {
sqlLog.l7dlog(Level.TRACE, LogKeys.sql_Backend_DmlError.name(), e);
throw new ExpectedProcedureException("HSQLDB Backend DML Error ", e);
}
} catch (Exception e) {
// rethrow an expected exception
sqlLog.l7dlog(Level.TRACE, LogKeys.sql_Backend_DmlError.name(), e);
throw new ExpectedProcedureException("HSQLDB Backend DML Error ", e);
}
}
}
