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new 4ae6d35ff1 [hotfix] broker selection not using table name (#9902)
4ae6d35ff1 is described below
commit 4ae6d35ff1593688c799be3c2dace8bf9fc9eab8
Author: Rong Rong <ro...@apache.org>
AuthorDate: Fri Dec 2 20:58:25 2022 -0800
[hotfix] broker selection not using table name (#9902)
* fix broker selection not using table name
* Apply suggestions from code review
Co-authored-by: Rong Rong <ro...@startree.ai>
Co-authored-by: Xiaotian (Jackie) Jiang
<17555551+jackie-ji...@users.noreply.github.com>
---
.../java/org/apache/pinot/client/Connection.java | 37 ++++++++++++++++++----
.../apache/pinot/client/PreparedStatementTest.java | 30 ++++++++++++++++++
2 files changed, 61 insertions(+), 6 deletions(-)
diff --git
a/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/Connection.java
b/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/Connection.java
index 26df70c4c6..c236446d3d 100644
---
a/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/Connection.java
+++
b/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/Connection.java
@@ -25,6 +25,7 @@ import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import javax.annotation.Nullable;
+import org.apache.pinot.sql.parsers.CalciteSqlCompiler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -115,6 +116,7 @@ public class Connection {
*/
public ResultSetGroup execute(@Nullable String tableName, String query)
throws PinotClientException {
+ tableName = tableName == null ? resolveTableName(query) : tableName;
String brokerHostPort = _brokerSelector.selectBroker(tableName);
if (brokerHostPort == null) {
throw new PinotClientException("Could not find broker to query for
table: " + tableName);
@@ -148,11 +150,7 @@ public class Connection {
*/
public Future<ResultSetGroup> executeAsync(String query)
throws PinotClientException {
- String brokerHostPort = _brokerSelector.selectBroker(null);
- if (brokerHostPort == null) {
- throw new PinotClientException("Could not find broker to query for
statement: " + query);
- }
- return new
ResultSetGroupFuture(_transport.executeQueryAsync(brokerHostPort, query));
+ return executeAsync(null, query);
}
/**
@@ -165,7 +163,34 @@ public class Connection {
@Deprecated
public Future<ResultSetGroup> executeAsync(Request request)
throws PinotClientException {
- return executeAsync(request.getQuery());
+ return executeAsync(null, request.getQuery());
+ }
+
+ /**
+ * Executes a query asynchronously.
+ *
+ * @param query The query to execute
+ * @return A future containing the result of the query
+ * @throws PinotClientException If an exception occurs while processing the
query
+ */
+ public Future<ResultSetGroup> executeAsync(@Nullable String tableName,
String query)
+ throws PinotClientException {
+ tableName = tableName == null ? resolveTableName(query) : tableName;
+ String brokerHostPort = _brokerSelector.selectBroker(tableName);
+ if (brokerHostPort == null) {
+ throw new PinotClientException("Could not find broker to query for
statement: " + query);
+ }
+ return new
ResultSetGroupFuture(_transport.executeQueryAsync(brokerHostPort, query));
+ }
+
+ @Nullable
+ private static String resolveTableName(String query) {
+ try {
+ return
CalciteSqlCompiler.compileToBrokerRequest(query).querySource.tableName;
+ } catch (Exception e) {
+ LOGGER.error("Cannot parse table name from query: {}", query, e);
+ return null;
+ }
}
/**
diff --git
a/pinot-clients/pinot-java-client/src/test/java/org/apache/pinot/client/PreparedStatementTest.java
b/pinot-clients/pinot-java-client/src/test/java/org/apache/pinot/client/PreparedStatementTest.java
index 230fbf99be..404b1b279a 100644
---
a/pinot-clients/pinot-java-client/src/test/java/org/apache/pinot/client/PreparedStatementTest.java
+++
b/pinot-clients/pinot-java-client/src/test/java/org/apache/pinot/client/PreparedStatementTest.java
@@ -20,6 +20,7 @@ package org.apache.pinot.client;
import java.util.Collections;
import java.util.concurrent.Future;
+import org.mockito.Mockito;
import org.testng.Assert;
import org.testng.annotations.Test;
@@ -31,6 +32,26 @@ import org.testng.annotations.Test;
public class PreparedStatementTest {
private final DummyPinotClientTransport _dummyPinotClientTransport = new
DummyPinotClientTransport();
+ @Test
+ public void testPreparedStatementWithDynamicBroker() {
+ // Create a connection with dynamic broker selector.
+ BrokerSelector mockBrokerSelector = Mockito.mock(BrokerSelector.class);
+
Mockito.when(mockBrokerSelector.selectBroker(Mockito.anyString())).thenAnswer(i
-> i.getArgument(0));
+ Connection connection = new Connection(mockBrokerSelector,
_dummyPinotClientTransport);
+
+ PreparedStatement preparedStatement = connection.prepareStatement("SELECT
foo FROM bar WHERE baz = ?");
+ preparedStatement.setString(0, "'hello'");
+ preparedStatement.execute();
+ Assert.assertEquals("SELECT foo FROM bar WHERE baz = '''hello'''",
_dummyPinotClientTransport.getLastQuery());
+ Assert.assertEquals("bar",
_dummyPinotClientTransport.getLastBrokerAddress());
+
+ preparedStatement = connection.prepareStatement("SELECT bar FROM foo WHERE
baz = ?");
+ preparedStatement.setString(0, "'world'");
+ preparedStatement.executeAsync();
+ Assert.assertEquals("SELECT bar FROM foo WHERE baz = '''world'''",
_dummyPinotClientTransport.getLastQuery());
+ Assert.assertEquals("foo",
_dummyPinotClientTransport.getLastBrokerAddress());
+ }
+
@Test
public void testPreparedStatementEscaping() {
// Create a prepared statement that has to quote a string appropriately
@@ -45,11 +66,13 @@ public class PreparedStatementTest {
}
static class DummyPinotClientTransport implements PinotClientTransport {
+ private String _lastBrokerAddress;
private String _lastQuery;
@Override
public BrokerResponse executeQuery(String brokerAddress, String query)
throws PinotClientException {
+ _lastBrokerAddress = brokerAddress;
_lastQuery = query;
return BrokerResponse.empty();
}
@@ -57,6 +80,7 @@ public class PreparedStatementTest {
@Override
public Future<BrokerResponse> executeQueryAsync(String brokerAddress,
String query)
throws PinotClientException {
+ _lastBrokerAddress = brokerAddress;
_lastQuery = query;
return null;
}
@@ -64,6 +88,7 @@ public class PreparedStatementTest {
@Override
public BrokerResponse executeQuery(String brokerAddress, Request request)
throws PinotClientException {
+ _lastBrokerAddress = brokerAddress;
_lastQuery = request.getQuery();
return BrokerResponse.empty();
}
@@ -71,6 +96,7 @@ public class PreparedStatementTest {
@Override
public Future<BrokerResponse> executeQueryAsync(String brokerAddress,
Request request)
throws PinotClientException {
+ _lastBrokerAddress = brokerAddress;
_lastQuery = request.getQuery();
return null;
}
@@ -79,6 +105,10 @@ public class PreparedStatementTest {
return _lastQuery;
}
+ public String getLastBrokerAddress() {
+ return _lastBrokerAddress;
+ }
+
@Override
public void close()
throws PinotClientException {
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