lidavidm commented on code in PR #4444:
URL: https://github.com/apache/arrow-adbc/pull/4444#discussion_r3575489744
##########
java/driver/flight-sql/src/main/java/org/apache/arrow/adbc/driver/flightsql/FlightSqlConnection.java:
##########
@@ -203,13 +212,124 @@ public void setAutoCommit(boolean enableAutoCommit)
throws AdbcException {
}
}
+ @Override
+ public <T> T getOption(TypedKey<T> key) throws AdbcException {
+ final String k = key.getKey();
+
+ if (k.equals(FlightSqlConnectionProperties.SESSION_OPTIONS)) {
+ if (key.getType() != String.class) {
+ return AdbcConnection.super.getOption(key);
+ }
+ return
key.cast(FlightSqlSessionUtil.toJson(fetchSessionOptionsOrEmpty()));
+ }
+
+ final String prefix;
+ if
(k.startsWith(FlightSqlConnectionProperties.SESSION_OPTION_BOOL_PREFIX)) {
+ prefix = FlightSqlConnectionProperties.SESSION_OPTION_BOOL_PREFIX;
+ } else if
(k.startsWith(FlightSqlConnectionProperties.SESSION_OPTION_STRING_LIST_PREFIX))
{
+ prefix = FlightSqlConnectionProperties.SESSION_OPTION_STRING_LIST_PREFIX;
+ } else if
(k.startsWith(FlightSqlConnectionProperties.SESSION_OPTION_PREFIX)) {
+ prefix = FlightSqlConnectionProperties.SESSION_OPTION_PREFIX;
+ } else {
+ return AdbcConnection.super.getOption(key);
+ }
+
+ final String name = k.substring(prefix.length());
+ if (name.isEmpty()) {
+ throw AdbcException.invalidArgument("[Flight SQL] Session option name
must not be empty");
+ }
+ final Object raw =
+ FlightSqlSessionUtil.require(fetchSessionOptionsOrEmpty(), name)
+ .acceptVisitor(FlightSqlSessionUtil.TO_JAVA);
+ if (raw == null) {
+ throw new AdbcException(
+ "[Flight SQL] Session option not found: " + name,
+ null,
+ AdbcStatusCode.NOT_FOUND,
+ null,
+ 0);
+ }
+ final T result = FlightSqlSessionUtil.cast(key, raw, name);
+ return result != null ? result : AdbcConnection.super.getOption(key);
+ }
+
+ @Override
+ public <T> void setOption(TypedKey<T> key, T value) throws AdbcException {
+ final String k = key.getKey();
+
+ if (value == null) {
+ throw AdbcException.invalidArgument(
+ "[Flight SQL] null value not allowed for key: "
+ + k
+ + " - use adbc.flight.sql.session.optionerase.<name> to erase an
option");
+ }
Review Comment:
Isn't this check too early? We should only do this inside the individual
setter branches
##########
java/driver/flight-sql/src/main/java/org/apache/arrow/adbc/driver/flightsql/FlightSqlSessionUtil.java:
##########
@@ -0,0 +1,173 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.arrow.adbc.driver.flightsql;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import org.apache.arrow.adbc.core.AdbcException;
+import org.apache.arrow.adbc.core.AdbcStatusCode;
+import org.apache.arrow.adbc.core.TypedKey;
+import org.apache.arrow.flight.NoOpSessionOptionValueVisitor;
+import org.apache.arrow.flight.SessionOptionValue;
+
+/** Package-private helpers for Flight SQL session option serialization and
type conversion. */
+final class FlightSqlSessionUtil {
+
+ static final ObjectMapper MAPPER = new ObjectMapper();
+
+ /**
+ * Extracts a native Java value from a {@link SessionOptionValue}.
NaN/Infinity doubles are
+ * returned as-is and filtered in {@link #toJson}; String[] is defensively
cloned; Void returns
+ * {@code null} (callers must handle null before calling {@link #cast}).
+ */
+ static final NoOpSessionOptionValueVisitor<Object> TO_JAVA =
+ new NoOpSessionOptionValueVisitor<Object>() {
+ @Override
+ public Object visit(String v) {
+ return v;
+ }
+
+ @Override
+ public Object visit(boolean v) {
+ return v;
+ }
+
+ @Override
+ public Object visit(long v) {
+ return v;
+ }
+
+ @Override
+ public Object visit(double v) {
+ return v;
+ }
+
+ @Override
+ public Object visit(String[] v) {
+ return v.clone();
+ }
+ };
+
+ /** Serializes all session options to a JSON object string. */
+ static String toJson(Map<String, SessionOptionValue> opts) throws
AdbcException {
+ Map<String, Object> map = new LinkedHashMap<>();
+ for (Map.Entry<String, SessionOptionValue> e : opts.entrySet()) {
+ Object v = e.getValue().acceptVisitor(TO_JAVA);
+ // JSON does not support NaN or Infinity; represent them as null
+ if (v instanceof Double && !Double.isFinite((Double) v)) {
+ v = null;
+ }
Review Comment:
Though hmm, if the server sends these maybe a string is better?
##########
java/driver/flight-sql/src/main/java/org/apache/arrow/adbc/driver/flightsql/FlightSqlSessionUtil.java:
##########
@@ -0,0 +1,173 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.arrow.adbc.driver.flightsql;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import org.apache.arrow.adbc.core.AdbcException;
+import org.apache.arrow.adbc.core.AdbcStatusCode;
+import org.apache.arrow.adbc.core.TypedKey;
+import org.apache.arrow.flight.NoOpSessionOptionValueVisitor;
+import org.apache.arrow.flight.SessionOptionValue;
+
+/** Package-private helpers for Flight SQL session option serialization and
type conversion. */
+final class FlightSqlSessionUtil {
+
+ static final ObjectMapper MAPPER = new ObjectMapper();
+
+ /**
+ * Extracts a native Java value from a {@link SessionOptionValue}.
NaN/Infinity doubles are
+ * returned as-is and filtered in {@link #toJson}; String[] is defensively
cloned; Void returns
+ * {@code null} (callers must handle null before calling {@link #cast}).
+ */
+ static final NoOpSessionOptionValueVisitor<Object> TO_JAVA =
+ new NoOpSessionOptionValueVisitor<Object>() {
+ @Override
+ public Object visit(String v) {
+ return v;
+ }
+
+ @Override
+ public Object visit(boolean v) {
+ return v;
+ }
+
+ @Override
+ public Object visit(long v) {
+ return v;
+ }
+
+ @Override
+ public Object visit(double v) {
+ return v;
+ }
+
+ @Override
+ public Object visit(String[] v) {
+ return v.clone();
+ }
+ };
+
+ /** Serializes all session options to a JSON object string. */
+ static String toJson(Map<String, SessionOptionValue> opts) throws
AdbcException {
+ Map<String, Object> map = new LinkedHashMap<>();
+ for (Map.Entry<String, SessionOptionValue> e : opts.entrySet()) {
+ Object v = e.getValue().acceptVisitor(TO_JAVA);
+ // JSON does not support NaN or Infinity; represent them as null
+ if (v instanceof Double && !Double.isFinite((Double) v)) {
+ v = null;
+ }
Review Comment:
Do this inside the visitor?
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