/*
 * Licensed to Crate under one or more contributor license agreements.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial
 * agreement.
 */

package io.crate.planner.statement;

import io.crate.action.sql.SessionContext;
import io.crate.data.InMemoryBatchIterator;
import io.crate.data.Row;
import io.crate.data.RowConsumer;
import io.crate.metadata.settings.session.SessionSetting;
import io.crate.metadata.settings.session.SessionSettingRegistry;
import io.crate.planner.DependencyCarrier;
import io.crate.planner.Plan;
import io.crate.planner.PlannerContext;
import io.crate.planner.operators.SubQueryResults;
import io.crate.sql.tree.Expression;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.LogManager;

import java.util.List;
import java.util.Map;

import static io.crate.data.SentinelRow.SENTINEL;

public class SetSessionPlan implements Plan {

    private static final Logger LOGGER = LogManager.getLogger(SetSessionPlan.class);

    private final Map<String, List<Expression>> settings;

    public SetSessionPlan(Map<String, List<Expression>> settings) {
        this.settings = settings;
    }

    @Override
    public StatementType type() {
        return StatementType.MANAGEMENT;
    }

    @Override
    public void executeOrFail(DependencyCarrier executor,
                              PlannerContext plannerContext,
                              RowConsumer consumer,
                              Row params,
                              SubQueryResults subQueryResults) throws Exception {
        SessionContext sessionContext = plannerContext.transactionContext().sessionContext();
        for (Map.Entry<String, List<Expression>> entry : settings.entrySet()) {
            SessionSetting<?> sessionSetting = SessionSettingRegistry.SETTINGS.get(entry.getKey());
            if (sessionSetting == null) {
                LOGGER.warn("SET SESSION STATEMENT WILL BE IGNORED: {}", entry.getKey());
            } else {
                sessionSetting.apply(params, entry.getValue(), sessionContext);
            }
        }
        consumer.accept(InMemoryBatchIterator.empty(SENTINEL), null);
    }
}

/*
 * Licensed to Crate under one or more contributor license agreements.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.  Crate 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.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial
 * agreement.
 */

package io.crate.planner.statement;

import io.crate.action.sql.SessionContext;
import io.crate.data.InMemoryBatchIterator;
import io.crate.data.Row;
import io.crate.data.RowConsumer;
import io.crate.metadata.settings.session.SessionSetting;
import io.crate.metadata.settings.session.SessionSettingRegistry;
import io.crate.planner.DependencyCarrier;
import io.crate.planner.Plan;
import io.crate.planner.PlannerContext;
import io.crate.planner.operators.SubQueryResults;
import io.crate.sql.tree.Expression;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.LogManager;

import java.util.List;
import java.util.Map;

import static io.crate.data.SentinelRow.SENTINEL;

public class SetSessionPlan implements Plan {

    private static final Logger LOGGER = LogManager.getLogger(SetSessionPlan.class);

    private final Map<String, List<Expression>> settings;

    public SetSessionPlan(Map<String, List<Expression>> settings) {
        this.settings = settings;
    }

    @Override
    public StatementType type() {
        return StatementType.MANAGEMENT;
    }

    @Override
    public void executeOrFail(DependencyCarrier executor,
                              PlannerContext plannerContext,
                              RowConsumer consumer,
                              Row params,
                              SubQueryResults subQueryResults) throws Exception {
        SessionContext sessionContext = plannerContext.transactionContext().sessionContext();
        for (Map.Entry<String, List<Expression>> entry : settings.entrySet()) {
            SessionSetting<?> sessionSetting = SessionSettingRegistry.SETTINGS.get(entry.getKey());
            if (sessionSetting == null) {
                LOGGER.info("SET SESSION STATEMENT WILL BE IGNORED: {}", entry.getKey());
            } else {
                sessionSetting.apply(params, entry.getValue(), sessionContext);
            }
        }
        consumer.accept(InMemoryBatchIterator.empty(SENTINEL), null);
    }
}

Set log level for ignored set session statements to info